[Attributor] Adds deduction for the MaxObjSize Attribute

[atmnpatel]

Summary

This patch adds deduction for the MaxObjSize attribute in the
Attributor. If an object is globally defined or has been defined with an
alloca instruction, it's not resizable and we immediately converge to
the size. For objects that are captured, we assume the pessimistic
fixpoint because the objects may be resized, and we iterate for the
rest.

[jdoerfert]

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

3710–3711

Make it StateType

3739

3740

assert(T.isAtFixpoint() && "...");

3742

Resizable should be taken from AA not from nocapture. Nocapture is needed only if resizable is true. So if it is resizable and it maybe captured. Give up on it.

[atmnpatel]

Addresses inline comments (I think), and adds a test.

[atmnpatel]

Decreased bloat in the OpenMP test modifications.

[atmnpatel]

Clang-tidy fix.

[atmnpatel]

Rebase.

[jdoerfert]

llvm/test/Transforms/Attributor/maxobjsize.ll

189 ↗

(On Diff #294484)

duplicate the test so it exists 3 times. In this version we can actually add maxobjsize to the call site argument, we can do so as well if the use is not reachable from a capturing use. We don't need to add the logic but the test might be worth adding with a fixme.

173 ↗

(On Diff #293645)

add another use of %0 and @G here before the capture calls

173 ↗

(On Diff #293645)

This is not necessary, forgot to delete it.

[jdoerfert]

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

3837

This can be null. We need to check it and abort.

[atmnpatel]

Fixes.

[jdoerfert]

This comment was removed by jdoerfert.

[atmnpatel]

Rebase

[jdoerfert]

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

3791

you need a new statistics tracker here and elsewhere

[atmnpatel]

changed stats trackers

[atmnpatel]

Fixed broken test.

[jdoerfert]

CTMark, O3 with attributor before and after these patches

0) before_attr.json.stats vs after_attr.json.stats
CHANGED: codegenprepare               NumExtsMoved                                         3631 ->       3699 (    +1.873%)
CHANGED: dse                          NumFastOther                                          192 ->        194 (    +1.042%)
CHANGED: gvn                          IsValueFullyAvailableInBlockNumSpeculationsMax       4958 ->       5060 (    +2.057%)
CHANGED: gvn                          NumGVNInstr                                         46657 ->      47534 (    +1.880%)
CHANGED: jump-threading               NumDupes                                               91 ->         92 (    +1.099%)
CHANGED: licm                         NumMovedLoads                                        6272 ->       6344 (    +1.148%)
CHANGED: licm                         NumPromoted                                           381 ->        438 (   +14.961%)
CHANGED: loop-rotate                  NumNotRotatedDueToHeaderSize                           31 ->         29 (    -6.452%)
CHANGED: machinelicm                  NumPostRAHoisted                                       88 ->         89 (    +1.136%)
CHANGED: memdep                       NumCacheNonLocalPtr                               1005887 ->    1016671 (    +1.072%)
CHANGED: memory-builtins              ObjectVisitorLoad                                   62048 ->      63473 (    +2.297%)
CHANGED: peephole-opt                 NumCmps                                               532 ->        526 (    -1.128%)
CHANGED: regalloc                     NumDCEFoldedLoads                                      27 ->         26 (    -3.704%)
CHANGED: regalloc                     NumLocalSplits                                       1891 ->       1870 (    -1.111%)

[jdoerfert]

Can you add these examples too please:

void use(int *a) {
  *a += 1;
}
static void non_resizable(int *p) {
  use(p);
  use(p);
}
static void resizable(int *p) {
  use(p);
  use(p);
}
void non_resizable_caller1() {
  int a;
  non_resizable(&a);
}
int G;
void non_resizable_caller2() {
  non_resizable(&G);
}
void resizable_caller1() {
  int a;
  resizable(&a);
}
void resizable_caller2(int *a) {
  resizable(a);
}

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

3740

Why not the assumed state?

[atmnpatel]

Updates.

[jdoerfert]

llvm/test/Transforms/Attributor/maxobjsize.ll

493 ↗

(On Diff #296725)

Can you run mem2reg on the new test code. Also add maxobjsize to the argument %0 in this caller, I forgot to mention that. The test should show that we propagate maxobjsize to the second use *only* if it is not resizable.

llvm/include/llvm/Transforms/IPO/Attributor.h

struct Attributor {
   template <typename AAType>
   const AAType &getOrCreateAAFor(const IRPosition &IRP,
                                  const AbstractAttribute *QueryingAA = nullptr,
                                  bool TrackDependence = false,
                                  DepClassTy DepClass = DepClassTy::OPTIONAL,
                                  bool ForceUpdate = false) {
     if (AAType *AAPtr = lookupAAFor<AAType>(IRP, QueryingAA, TrackDependence)) {
       if (ForceUpdate && Phase == AttributorPhase::UPDATE)
         updateAA(*AAPtr);
       return *AAPtr;
     }
 
     // No matching attribute found, create one.
     // Use the static create method.
     auto &AA = AAType::createForPosition(IRP, *this);
 
     // If we are currenty seeding attributes, enforce seeding rules.
     if (Phase == AttributorPhase::SEEDING && !shouldSeedAttribute(AA)) {
       AA.getState().indicatePessimisticFixpoint();
       return AA;
     }
 
     registerAA(AA);
 
     // For now we ignore naked and optnone functions.
     bool Invalidate = Allowed && !Allowed->count(&AAType::ID);
     const Function *FnScope = IRP.getAnchorScope();
     if (FnScope)
       Invalidate |= FnScope->hasFnAttribute(Attribute::Naked) ||
                     FnScope->hasFnAttribute(Attribute::OptimizeNone);
 
     // Avoid too many nested initializations to prevent a stack overflow.
     Invalidate |= InitializationChainLength > MaxInitializationChainLength;
 
struct Attributor {
 
   /// Return the attribute of \p AAType for \p IRP if existing. This also allows
   /// non-AA users lookup.
   template <typename AAType>
   AAType *lookupAAFor(const IRPosition &IRP,
                       const AbstractAttribute *QueryingAA = nullptr,
                       bool TrackDependence = false,
                       DepClassTy DepClass = DepClassTy::OPTIONAL) {
     static_assert(std::is_base_of<AbstractAttribute, AAType>::value,
                   "Cannot query an attribute with a type not derived from "
                   "'AbstractAttribute'!");
     assert((QueryingAA || !TrackDependence) &&
            "Cannot track dependences without a QueryingAA!");
 
     // Lookup the abstract attribute of type AAType. If found, return it after
     // registering a dependence of QueryingAA on the one returned attribute.
     AbstractAttribute *AAPtr = AAMap.lookup({&AAType::ID, IRP});
     if (!AAPtr)
       return nullptr;
 
     AAType *AA = static_cast<AAType *>(AAPtr);
 
     // Do not register a dependence on an attribute with an invalid state.
     if (TrackDependence && AA->getState().isValidState())
       recordDependence(*AA, const_cast<AbstractAttribute &>(*QueryingAA),
private:
   void joinAND(base_t AssumedValue, base_t KnownValue) override {
     this->Known = std::min(this->Known, KnownValue);
     this->Assumed = std::min(this->Assumed, AssumedValue);
   }
 };
 
 /// Specialization of the integer state for a decreasing value, hence 0 is the
 /// best state and ~0u the worst.
-template <typename base_ty = uint32_t>
-struct DecIntegerState : public IntegerStateBase<base_ty, 0, ~base_ty(0)> {
+template <typename base_ty = uint32_t, base_ty BestState = base_ty(0),
+          base_ty WorstState = ~base_ty(0)>
+struct DecIntegerState
+    : public IntegerStateBase<base_ty, BestState, WorstState> {
   using base_t = base_ty;
+  using super = IntegerStateBase<base_t, BestState, WorstState>;
+
+  DecIntegerState() : super() {}
+  DecIntegerState(base_t Assumed) : super(Assumed) {}
+
+  /// Return the best possible representable state.
+  static constexpr base_t getBestState() { return BestState; }
+  static constexpr base_t
+  getBestState(const DecIntegerState<base_ty, BestState, WorstState> &) {
+    return getBestState();
+  }
 
   /// Take maximum of assumed and \p Value.
   DecIntegerState &takeAssumedMaximum(base_t Value) {
     // Make sure we never loose "known value".
     this->Assumed = std::min(std::max(this->Assumed, Value), this->Known);
     return *this;
   }
 
struct AADereferenceable
   static bool classof(const AbstractAttribute *AA) {
     return (AA->getIdAddr() == &ID);
   }
 
   /// Unique ID (due to the unique address)
   static const char ID;
 };
 
+struct MaxObjState : AbstractState {
+  static MaxObjState getBestState() { return MaxObjState(); }
+  static MaxObjState getBestState(const MaxObjState &) {
+    return getBestState();
+  }
+
+  /// Return the worst possible representable state.
+  static MaxObjState getWorstState() {
+    MaxObjState DS;
+    DS.indicatePessimisticFixpoint();
+    return DS;
+  }
+  static MaxObjState getWorstState(const MaxObjState &) {
+    return getWorstState();
+  }
+
+  /// State representing for dereferenceable bytes.
+  DecIntegerState<uint64_t> MaxObjSizeState;
+
+  /// State representing that whether the object is resizable.
+  BooleanState ResizableState;
+
+  /// See AbstractState::isValidState()
+  bool isValidState() const override { return MaxObjSizeState.isValidState(); }
+
+  /// See AbstractState::isAtFixpoint()
+  bool isAtFixpoint() const override {
+    return !isValidState() ||
+           (MaxObjSizeState.isAtFixpoint() && ResizableState.isAtFixpoint());
+  }
+
+  /// See AbstractState::indicateOptimisticFixpoint(...)
+  ChangeStatus indicateOptimisticFixpoint() override {
+    MaxObjSizeState.indicateOptimisticFixpoint();
+    ResizableState.indicateOptimisticFixpoint();
+    return ChangeStatus::UNCHANGED;
+  }
+
+  /// See AbstractState::indicatePessimisticFixpoint(...)
+  ChangeStatus indicatePessimisticFixpoint() override {
+    MaxObjSizeState.indicatePessimisticFixpoint();
+    ResizableState.indicatePessimisticFixpoint();
+    return ChangeStatus::CHANGED;
+  }
+
+  /// Update known maxobjsize bytes.
+  void takeKnownMaxObjBytesMinimum(uint64_t Bytes) {
+    MaxObjSizeState.takeKnownMinimum(Bytes);
+  }
+
+  /// Update assumed maxobjsize bytes.
+  void takeAssumedMaxObjBytesMinimum(uint64_t Bytes) {
+    MaxObjSizeState.takeAssumedMaximum(Bytes);
+  }
+
+  /// Equality for MaxObjState.
+  bool operator==(const MaxObjState &R) const {
+    return this->MaxObjSizeState == R.MaxObjSizeState &&
+           this->ResizableState == R.ResizableState;
+  }
+
+  /// Inequality for MaxObjState.
+  bool operator!=(const MaxObjState &R) const { return !(*this == R); }
+
+  /// See IntegerStateBase::operator^=
+  MaxObjState operator^=(const MaxObjState &R) {
+    MaxObjSizeState ^= R.MaxObjSizeState;
+    ResizableState ^= R.ResizableState;
+    return *this;
+  }
+
+  /// See IntegerStateBase::operator+=
+  MaxObjState operator+=(const MaxObjState &R) {
+    MaxObjSizeState += R.MaxObjSizeState;
+    ResizableState += R.ResizableState;
+    return *this;
+  }
+
+  /// See IntegerStateBase::operator&=
+  MaxObjState operator&=(const MaxObjState &R) {
+    MaxObjSizeState &= R.MaxObjSizeState;
+    ResizableState &= R.ResizableState;
+    return *this;
+  }
+
+  /// See IntegerStateBase::operator|=
+  MaxObjState operator|=(const MaxObjState &R) {
+    MaxObjSizeState |= R.MaxObjSizeState;
+    ResizableState |= R.ResizableState;
+    return *this;
+  }
+};
+
+/// An abstract interface to determine the maximal size of an object.
+struct AAMaxObjSize
+    : public IRAttribute<Attribute::MaxObjSize,
+                         StateWrapper<MaxObjState, AbstractAttribute>> {
+
+  AAMaxObjSize(const IRPosition &IRP, Attributor &A) : IRAttribute(IRP) {}
+
+  /// Return assumed maximal object size.
+  unsigned getAssumedMaxObjSize() const { return MaxObjSizeState.getAssumed(); }
+
+  /// Return known maximal object size.
+  unsigned getKnownMaxObjSize() const { return MaxObjSizeState.getKnown(); }
+
+  /// Return true if we assume that underlying value is
+  /// resizable.
+  bool isAssumedResizable() const { return ResizableState.getAssumed(); }
+
+  /// Return true if we know that underlying value is
+  /// resizable.
+  bool isKnownResizable() const { return ResizableState.getKnown(); }
+
+  /// Create an abstract attribute view for the position \p IRP.
+  static AAMaxObjSize &createForPosition(const IRPosition &IRP, Attributor &A);
+
+  /// This function should return true if the type of the \p AA is AAAlign
+  static bool classof(const AbstractAttribute *AA) {
+    return (AA->getIdAddr() == &ID);
+  }
+
+  /// See AbstractAttribute::getName()
+  const std::string getName() const override { return "AAMaxObjSize"; }
+
+  /// See AbstractAttribute::getIdAddr()
+  const char *getIdAddr() const override { return &ID; }
+
+  /// Unique ID (due to the unique address)
+  static const char ID;
+};
+
 using AAAlignmentStateType =
     IncIntegerState<uint32_t, Value::MaximumAlignment, 0>;
 /// An abstract interface for all align attributes.
 struct AAAlign : public IRAttribute<
                      Attribute::Alignment,
                      StateWrapper<AAAlignmentStateType, AbstractAttribute>> {
   AAAlign(const IRPosition &IRP, Attributor &A) : IRAttribute(IRP) {}
 

llvm/lib/Transforms/IPO/Attributor.cpp

 }
 ///}
 
 /// Return true if \p New is equal or worse than \p Old.
 static bool isEqualOrWorse(const Attribute &New, const Attribute &Old) {
   if (!Old.isIntAttribute())
     return true;
 
+  if (New.getKindAsEnum() == Attribute::MaxObjSize)
+    return Old.getValueAsInt() <= New.getValueAsInt();
   return Old.getValueAsInt() >= New.getValueAsInt();
 }
 
 /// Return true if the information provided by \p Attr was added to the
 /// attribute list \p Attrs. This is only the case if it was not already present
 /// in \p Attrs at the position describe by \p PK and \p AttrIdx.
 static bool addIfNotExistent(LLVMContext &Ctx, const Attribute &Attr,
                              AttributeList &Attrs, int AttrIdx) {
if (ReturnType->isPointerTy()) {
       getOrCreateAAFor<AANonNull>(RetPos);
 
       // Every function with pointer return type might be marked noalias.
       getOrCreateAAFor<AANoAlias>(RetPos);
 
       // Every function with pointer return type might be marked
       // dereferenceable.
       getOrCreateAAFor<AADereferenceable>(RetPos);
+
+      // Every argument with pointer type might be marked with maxobjsize.
+      getOrCreateAAFor<AAMaxObjSize>(RetPos);
     }
   }
 
   for (Argument &Arg : F.args()) {
     IRPosition ArgPos = IRPosition::argument(Arg);
 
     // Every argument might be simplified.
     getOrCreateAAFor<AAValueSimplify>(ArgPos);
if (Arg.getType()->isPointerTy()) {
       // "readnone/readonly/writeonly/..."
       getOrCreateAAFor<AAMemoryBehavior>(ArgPos);
 
       // Every argument with pointer type might be marked nofree.
       getOrCreateAAFor<AANoFree>(ArgPos);
 
       // Every argument with pointer type might be privatizable (or promotable)
       getOrCreateAAFor<AAPrivatizablePtr>(ArgPos);
+
+      // Every argument with pointer type might be marked with maxobjsize.
+      getOrCreateAAFor<AAMaxObjSize>(ArgPos);
     }
   }
 
   auto CallSitePred = [&](Instruction &I) -> bool {
     auto &CB = cast<CallBase>(I);
     IRPosition CBRetPos = IRPosition::callsite_returned(CB);
 
     // Call sites might be dead if they do not have side effects and no live
for (int I = 0, E = CB.getNumArgOperands(); I < E; ++I) {
       getOrCreateAAFor<AAAlign>(CBArgPos);
 
       // Call site argument attribute
       // "readnone/readonly/writeonly/..."
       getOrCreateAAFor<AAMemoryBehavior>(CBArgPos);
 
       // Call site argument attribute "nofree".
       getOrCreateAAFor<AANoFree>(CBArgPos);
+
+      // Call site argument attribute "maxobjsize"
+      getOrCreateAAFor<AAMaxObjSize>(CBArgPos);
     }
     return true;
   };
 
   auto &OpcodeInstMap = InfoCache.getOpcodeInstMapForFunction(F);
   bool Success;
   Success = checkForAllInstructionsImpl(
       nullptr, OpcodeInstMap, CallSitePred, nullptr, nullptr,

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

 PIPE_OPERATOR(AANoUnwind)
 PIPE_OPERATOR(AANoSync)
 PIPE_OPERATOR(AANoRecurse)
 PIPE_OPERATOR(AAWillReturn)
 PIPE_OPERATOR(AANoReturn)
 PIPE_OPERATOR(AAReturnedValues)
 PIPE_OPERATOR(AANonNull)
 PIPE_OPERATOR(AANoAlias)
+PIPE_OPERATOR(AAMaxObjSize)
 PIPE_OPERATOR(AADereferenceable)
 PIPE_OPERATOR(AAAlign)
 PIPE_OPERATOR(AANoCapture)
 PIPE_OPERATOR(AAValueSimplify)
 PIPE_OPERATOR(AANoFree)
 PIPE_OPERATOR(AAHeapToStack)
 PIPE_OPERATOR(AAReachability)
 PIPE_OPERATOR(AAMemoryBehavior)
AADereferenceableCallSiteReturned(const IRPosition &IRP, Attributor &A)
       : Base(IRP, A) {}
 
   /// See AbstractAttribute::trackStatistics()
   void trackStatistics() const override {
     STATS_DECLTRACK_CS_ATTR(dereferenceable);
   }
 };
 
+// ------------------------ MaxObjSize Attribute ----------------------------
+//
+template <>
+ChangeStatus clampStateAndIndicateChange<MaxObjState>(MaxObjState &S,
+                                                      const MaxObjState &R) {
+  ChangeStatus CS0 =
+      clampStateAndIndicateChange(S.MaxObjSizeState, R.MaxObjSizeState);
+  ChangeStatus CS1 =
+      clampStateAndIndicateChange(S.ResizableState, R.ResizableState);
+  return CS0 | CS1;
+}
+
+struct AAMaxObjSizeImpl : AAMaxObjSize {
+  AAMaxObjSizeImpl(const IRPosition &IRP, Attributor &A)
+      : AAMaxObjSize(IRP, A) {}
+
+  void getDeducedAttributes(LLVMContext &Ctx,
+                            SmallVectorImpl<Attribute> &Attrs) const override {
+    if (getAssumedMaxObjSize() == 0 || getAssumedMaxObjSize() == ~0U)
+      return;
+    Attrs.emplace_back(
+        Attribute::getWithMaxObjSizeBytes(Ctx, getAssumedMaxObjSize()));
+  }
+
+  /// See AbstractAttribute::getAsStr().
+  const std::string getAsStr() const override {
+    return getAssumedMaxObjSize() != ~0U
+               ? ("maxobjsize<" + std::to_string(getKnownMaxObjSize()) + "-" +
+                  std::to_string(getAssumedMaxObjSize()) + ">")
+               : "unknown-maxobjsize";
+  }
+};
+
+/// MaxObjSize attribute for a floating value.
+struct AAMaxObjSizeFloating : AAMaxObjSizeImpl {
+  AAMaxObjSizeFloating(const IRPosition &IRP, Attributor &A)
+      : AAMaxObjSizeImpl(IRP, A) {}
+  using State = MaxObjState;
+
+  /// See AbstractAttribute::updateImpl(...).
+  ChangeStatus updateImpl(Attributor &A) override {
+    const DataLayout &DL = A.getDataLayout();
+
+    auto StripGEPCB = [](Value *V) -> Value * {
+      auto *GEP = dyn_cast<GEPOperator>(V);
+      while (GEP) {
+        V = GEP->getPointerOperand();
+        GEP = dyn_cast<GEPOperator>(V);
+      }
+      return V;
+    };
+
+    auto VisitValueCB = [&](const Value &V, const Instruction *I, State &T,
+                            bool Stripped) -> bool {
+      const auto &AA = A.getAAFor<AAMaxObjSize>(*this, IRPosition::value(V));
+      uint64_t MaxObjSize = 0;
+      if (!Stripped && this == &AA) {
+        const auto &CaptureAA =
+            A.getAAFor<AANoCapture>(*this, IRPosition::value(V));
+        MaxObjSize = V.getPointerMaxObjSizeBytes(DL);
+        if (isa<AllocaInst>(V) || isa<GlobalValue>(&V)) {
+          T.MaxObjSizeState.takeAssumedMaximum(
+              std::min(~uint64_t(0), MaxObjSize));
+          T.MaxObjSizeState.takeKnownMinimum(
+              std::min(~uint64_t(0), MaxObjSize));
+
+          T.indicatePessimisticFixpoint();
+          T.ResizableState.indicateOptimisticFixpoint();
+        } else if (!CaptureAA.isKnownNoCapture()) {
+          T.ResizableState.indicatePessimisticFixpoint();
+        } else {
+          T.MaxObjSizeState.takeKnownMinimum(
+              std::min(~uint64_t(0), MaxObjSize));
+          T.indicatePessimisticFixpoint();
+        }
+      } else {
+        const State &DS = AA.getState();
+        MaxObjSize = DS.MaxObjSizeState.getAssumed();
+        T.MaxObjSizeState.takeAssumedMaximum(
+            std::min(~uint64_t(0), MaxObjSize));
+      }
+
+      return T.isValidState();
+    };
+
+    State T;
+    if (!genericValueTraversal<AAMaxObjSize, State>(A, getIRPosition(), *this,
+                                                    T, VisitValueCB, getCtxI(),
+                                                    true, 16, StripGEPCB))
+      return getState().indicatePessimisticFixpoint();
+
+    return clampStateAndIndicateChange(getState(), T);
+  }
+
+  /// See AbstractAttribute::trackStatistics()
+  void trackStatistics() const override {
+    STATS_DECLTRACK_FLOATING_ATTR(maxobjsize)
+  }
+};
+
+/// MaxObjSize attribute for function return value.
+struct AAMaxObjSizeReturned final
+    : AAReturnedFromReturnedValues<AAMaxObjSize, AAMaxObjSizeImpl> {
+  AAMaxObjSizeReturned(const IRPosition &IRP, Attributor &A)
+      : AAReturnedFromReturnedValues<AAMaxObjSize, AAMaxObjSizeImpl>(IRP, A) {}
+
+  /// See AbstractAttribute::trackStatistics()
+  void trackStatistics() const override { STATS_DECLTRACK_FNRET_ATTR(aligned) }
+};
+
+/// MaxObjSize attribute for function argument.
+struct AAMaxObjSizeArgument final
+    : AAArgumentFromCallSiteArguments<AAMaxObjSize, AAMaxObjSizeImpl> {
+  AAMaxObjSizeArgument(const IRPosition &IRP, Attributor &A)
+      : AAArgumentFromCallSiteArguments<AAMaxObjSize, AAMaxObjSizeImpl>(IRP,
+                                                                        A) {}
+
+  /// See AbstractAttribute::initialize(...).
+  virtual void initialize(Attributor &A) override {
+    if (hasAttr(Attribute::ByVal)) {
+      getState().MaxObjSizeState.takeKnownMinimum(
+          getAssociatedValue().getPointerMaxObjSizeBytes(A.getDataLayout()));
+      getState().indicatePessimisticFixpoint();
+      return;
+    }
+    AAArgumentFromCallSiteArguments<AAMaxObjSize, AAMaxObjSizeImpl>::initialize(
+        A);
+  }
+
+  /// See AbstractAttribute::trackStatistics()
+  void trackStatistics() const override { STATS_DECLTRACK_ARG_ATTR(aligned) }
+};
+
+struct AAMaxObjSizeCallSiteArgument final : AAMaxObjSizeFloating {
+  AAMaxObjSizeCallSiteArgument(const IRPosition &IRP, Attributor &A)
+      : AAMaxObjSizeFloating(IRP, A) {}
+
+  /// See AbstractAttribute::trackStatistics()
+  void trackStatistics() const override { STATS_DECLTRACK_CSARG_ATTR(aligned) }
+};
+
+/// MaxObjSize attribute deduction for a call site return value.
+struct AAMaxObjSizeCallSiteReturned final
+    : AACallSiteReturnedFromReturned<AAMaxObjSize, AAMaxObjSizeImpl> {
+  using Base = AACallSiteReturnedFromReturned<AAMaxObjSize, AAMaxObjSizeImpl>;
+  AAMaxObjSizeCallSiteReturned(const IRPosition &IRP, Attributor &A)
+      : Base(IRP, A) {}
+
+  /// See AbstractAttribute::updateImpl(...).
+  ChangeStatus updateImpl(Attributor &A) override {
+    // TODO: Once we have call site specific value information we can provide
+    //       call site specific liveness information and then it makes
+    //       sense to specialize attributes for call sites instead of
+    //       redirecting requests to the callee.
+    Function *F = getAssociatedFunction();
+    const IRPosition &FnPos = IRPosition::returned(*F);
+    auto &FnAA = A.getAAFor<AAMaxObjSize>(*this, FnPos);
+    return clampStateAndIndicateChange(
+        getState(),
+        static_cast<const AAMaxObjSize::StateType &>(FnAA.getState()));
+  }
+
+  /// See AbstractAttribute::trackStatistics()
+  void trackStatistics() const override {
+    STATS_DECLTRACK_CSRET_ATTR(maxobjsize);
+  }
+};
+
 // ------------------------ Align Argument Attribute ------------------------
 
 static unsigned getKnownAlignForUse(Attributor &A,
                                     AbstractAttribute &QueryingAA,
                                     Value &AssociatedValue, const Use *U,
                                     const Instruction *I, bool &TrackUse) {
   // We need to follow common pointer manipulation uses to the accesses they
   // feed into.

 const char AANoRecurse::ID = 0;
 const char AAWillReturn::ID = 0;
 const char AAUndefinedBehavior::ID = 0;
 const char AANoAlias::ID = 0;
 const char AAReachability::ID = 0;
 const char AANoReturn::ID = 0;
 const char AAIsDead::ID = 0;
 const char AADereferenceable::ID = 0;
+const char AAMaxObjSize::ID = 0;
 const char AAAlign::ID = 0;
 const char AANoCapture::ID = 0;
 const char AAValueSimplify::ID = 0;
 const char AAHeapToStack::ID = 0;
 const char AAPrivatizablePtr::ID = 0;
 const char AAMemoryBehavior::ID = 0;
 const char AAMemoryLocation::ID = 0;
 const char AAValueConstantRange::ID = 0;

 CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoReturn)
 CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAReturnedValues)
 CREATE_FUNCTION_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAMemoryLocation)
 
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANonNull)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoAlias)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAPrivatizablePtr)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AADereferenceable)
+CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAMaxObjSize)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAAlign)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoCapture)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAValueConstantRange)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAPotentialValues)
 CREATE_VALUE_ABSTRACT_ATTRIBUTE_FOR_POSITION(AANoUndef)
 
 CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAValueSimplify)
 CREATE_ALL_ABSTRACT_ATTRIBUTE_FOR_POSITION(AAIsDead)

llvm/test/Transforms/Attributor/ArgumentPromotion/2008-02-01-ReturnAttrs.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 define internal i32 @deref(i32* %x) nounwind {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@deref
-; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = load i32, i32* [[X]], align 4
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[TMP2]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@deref
 ; IS__TUNIT_NPM-SAME: (i32 [[TMP0:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[X_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[X_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = load i32, i32* [[X_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[TMP2]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@deref
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = load i32, i32* [[X]], align 4
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[TMP2]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@deref
 ; IS__CGSCC_NPM-SAME: (i32 [[TMP0:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  entry:

 
 define i32 @f(i32 %x) {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@f
 ; IS__TUNIT_OPM-SAME: (i32 [[X:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[X_ADDR:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 [[X]], i32* [[X_ADDR]], align 4
-; IS__TUNIT_OPM-NEXT:    [[TMP1:%.*]] = call i32 @deref(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X_ADDR]]) [[ATTR2:#.*]]
+; IS__TUNIT_OPM-NEXT:    [[TMP1:%.*]] = call i32 @deref(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X_ADDR]]) [[ATTR2:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[TMP1]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@f
 ; IS__TUNIT_NPM-SAME: (i32 [[X:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[X_ADDR:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[X]], i32* [[X_ADDR]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load i32, i32* [[X_ADDR]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP1:%.*]] = call i32 @deref(i32 [[TMP0]]) [[ATTR2:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[TMP1]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@f
 ; IS__CGSCC_OPM-SAME: (i32 [[X:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[X_ADDR:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 [[X]], i32* [[X_ADDR]], align 4
-; IS__CGSCC_OPM-NEXT:    [[TMP1:%.*]] = call i32 @deref(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X_ADDR]]) [[ATTR2:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[TMP1:%.*]] = call i32 @deref(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X_ADDR]]) [[ATTR2:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[TMP1]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@f
 ; IS__CGSCC_NPM-SAME: (i32 [[X:%.*]]) [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[X_ADDR:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 [[X]], i32* [[X_ADDR]], align 4

llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 ; Test that we only promote arguments when the caller/callee have compatible
 ; function attrubtes.
 
 target triple = "x86_64-unknown-linux-gnu"
 
 define internal fastcc void @no_promote_avx2(<4 x i64>* %arg, <4 x i64>* readonly %arg1) #0 {
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@no_promote_avx2
-; IS________OPM-SAME: (<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[ARG:%.*]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[ARG1:%.*]]) [[ATTR0:#.*]] {
+; IS________OPM-SAME: (<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[ARG:%.*]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[ARG1:%.*]]) [[ATTR0:#.*]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <4 x i64>, <4 x i64>* [[ARG1]], align 32
 ; IS________OPM-NEXT:    store <4 x i64> [[TMP]], <4 x i64>* [[ARG]], align 32
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@no_promote_avx2
-; IS________NPM-SAME: (<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[ARG:%.*]], <4 x i64>* noalias nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[ARG1:%.*]]) [[ATTR0:#.*]] {
+; IS________NPM-SAME: (<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[ARG:%.*]], <4 x i64>* noalias nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[ARG1:%.*]]) [[ATTR0:#.*]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <4 x i64>, <4 x i64>* [[ARG1]], align 32
 ; IS________NPM-NEXT:    store <4 x i64> [[TMP]], <4 x i64>* [[ARG]], align 32
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <4 x i64>, <4 x i64>* %arg1
   store <4 x i64> %tmp, <4 x i64>* %arg
   ret void
 }
 
 define void @no_promote(<4 x i64>* %arg) #1 {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@no_promote
 ; IS__TUNIT_OPM-SAME: (<4 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[TMP]]) [[ATTR5:#.*]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[TMP]]) [[ATTR5:#.*]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__TUNIT_OPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@no_promote
 ; IS__TUNIT_NPM-SAME: (<4 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
-; IS__TUNIT_NPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64>* noalias nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[TMP]]) [[ATTR5:#.*]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64>* noalias nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[TMP]]) [[ATTR5:#.*]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__TUNIT_NPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@no_promote
 ; IS__CGSCC_OPM-SAME: (<4 x i64>* nocapture nonnull writeonly align 2 dereferenceable(32) [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[TMP]]) [[ATTR5:#.*]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[TMP]]) [[ATTR5:#.*]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__CGSCC_OPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@no_promote
 ; IS__CGSCC_NPM-SAME: (<4 x i64>* nocapture nonnull writeonly align 2 dereferenceable(32) [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
-; IS__CGSCC_NPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64>* noalias nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[TMP]]) [[ATTR5:#.*]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4:#.*]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @no_promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64>* noalias nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[TMP]]) [[ATTR5:#.*]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__CGSCC_NPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <4 x i64>, align 32
   %tmp2 = alloca <4 x i64>, align 32
   %tmp3 = bitcast <4 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @no_promote_avx2(<4 x i64>* %tmp2, <4 x i64>* %tmp)
   %tmp4 = load <4 x i64>, <4 x i64>* %tmp2, align 32
   store <4 x i64> %tmp4, <4 x i64>* %arg, align 2
   ret void
 }
 
 define internal fastcc void @promote_avx2(<4 x i64>* %arg, <4 x i64>* readonly %arg1) #0 {
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@promote_avx2
-; IS________OPM-SAME: (<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[ARG:%.*]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[ARG1:%.*]]) [[ATTR0]] {
+; IS________OPM-SAME: (<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[ARG:%.*]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[ARG1:%.*]]) [[ATTR0]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <4 x i64>, <4 x i64>* [[ARG1]], align 32
 ; IS________OPM-NEXT:    store <4 x i64> [[TMP]], <4 x i64>* [[ARG]], align 32
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@promote_avx2
-; IS________NPM-SAME: (<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[ARG:%.*]], <4 x i64> [[TMP0:%.*]]) [[ATTR0]] {
+; IS________NPM-SAME: (<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[ARG:%.*]], <4 x i64> [[TMP0:%.*]]) [[ATTR0]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[ARG1_PRIV:%.*]] = alloca <4 x i64>, align 32
 ; IS________NPM-NEXT:    store <4 x i64> [[TMP0]], <4 x i64>* [[ARG1_PRIV]], align 32
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <4 x i64>, <4 x i64>* [[ARG1_PRIV]], align 32
 ; IS________NPM-NEXT:    store <4 x i64> [[TMP]], <4 x i64>* [[ARG]], align 32
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <4 x i64>, <4 x i64>* %arg1
   store <4 x i64> %tmp, <4 x i64>* %arg
   ret void
 }
 
 define void @promote(<4 x i64>* %arg) #0 {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@promote
 ; IS__TUNIT_OPM-SAME: (<4 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR2:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[TMP]]) [[ATTR5]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[TMP]]) [[ATTR5]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__TUNIT_OPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@promote
 ; IS__TUNIT_NPM-SAME: (<4 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR2:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load <4 x i64>, <4 x i64>* [[TMP]], align 32
-; IS__TUNIT_NPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64> [[TMP0]]) [[ATTR5]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64> [[TMP0]]) [[ATTR5]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__TUNIT_NPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@promote
 ; IS__CGSCC_OPM-SAME: (<4 x i64>* nocapture nonnull writeonly align 2 dereferenceable(32) [[ARG:%.*]]) [[ATTR2:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) [[TMP]]) [[ATTR5]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64>* nocapture nofree noundef nonnull readonly align 32 dereferenceable(32) maxobjsize(32) [[TMP]]) [[ATTR5]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__CGSCC_OPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@promote
 ; IS__CGSCC_NPM-SAME: (<4 x i64>* nocapture nonnull writeonly align 2 dereferenceable(32) [[ARG:%.*]]) [[ATTR2:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <4 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <4 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR4]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load <4 x i64>, <4 x i64>* [[TMP]], align 32
-; IS__CGSCC_NPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) [[TMP2]], <4 x i64> [[TMP0]]) [[ATTR5]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @promote_avx2(<4 x i64>* noalias nocapture nofree noundef nonnull writeonly align 32 dereferenceable(32) maxobjsize(32) [[TMP2]], <4 x i64> [[TMP0]]) [[ATTR5]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <4 x i64>, <4 x i64>* [[TMP2]], align 32
 ; IS__CGSCC_NPM-NEXT:    store <4 x i64> [[TMP4]], <4 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <4 x i64>, align 32
   %tmp2 = alloca <4 x i64>, align 32
   %tmp3 = bitcast <4 x i64>* %tmp to i8*

llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 ; Test that we only promote arguments when the caller/callee have compatible
 ; function attrubtes.
 
 target triple = "x86_64-unknown-linux-gnu"
 
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #0 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR0:#.*]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR0:#.*]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR0:#.*]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR0:#.*]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[ARG1_PRIV:%.*]] = alloca <8 x i64>, align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP0]], <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* %arg) #0 {
-;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer512
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12:#.*]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12:#.*]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer512
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12:#.*]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12:#.*]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer512
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12:#.*]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12:#.*]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer512
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11:#.*]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12:#.*]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12:#.*]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer512(<8 x i64>* %tmp2, <8 x i64>* %tmp)
   %tmp4 = load <8 x i64>, <8 x i64>* %tmp2, align 32
   store <8 x i64> %tmp4, <8 x i64>* %arg, align 2
   ret void
 }
 
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #1 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR2:#.*]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR2:#.*]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR2:#.*]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR2:#.*]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[ARG1_PRIV:%.*]] = alloca <8 x i64>, align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP0]], <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg) #1 {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer256
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR3:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer256
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR3:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer256
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR3:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer256
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR3:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %tmp2, <8 x i64>* %tmp)
   %tmp4 = load <8 x i64>, <8 x i64>* %tmp2, align 32
   store <8 x i64> %tmp4, <8 x i64>* %arg, align 2
   ret void
 }
 
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #1 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR2]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR2]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR2]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR2]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[ARG1_PRIV:%.*]] = alloca <8 x i64>, align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP0]], <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* %arg) #0 {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer256
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR1]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer256
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR1]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer256
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR1]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer512_call_avx512_legal512_prefer256
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR1]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @callee_avx512_legal512_prefer512_call_avx512_legal512_prefer256(<8 x i64>* %tmp2, <8 x i64>* %tmp)
   %tmp4 = load <8 x i64>, <8 x i64>* %tmp2, align 32
   store <8 x i64> %tmp4, <8 x i64>* %arg, align 2
   ret void
 }
 
 ; This should promote
 define internal fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #0 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR0]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR0]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR0]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR0]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[ARG1_PRIV:%.*]] = alloca <8 x i64>, align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP0]], <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* %arg) #1 {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer512
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR3]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer512
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR3]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer512
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR3]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal512_prefer512
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR3]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal512_prefer512(<8 x i64>* %tmp2, <8 x i64>* %tmp)
   %tmp4 = load <8 x i64>, <8 x i64>* %tmp2, align 32
   store <8 x i64> %tmp4, <8 x i64>* %arg, align 2
   ret void
 }
 
 ; This should not promote
 define internal fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #1 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR2]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR2]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR2]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR2]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %arg) #2 {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx512_legal256_prefer256_call_avx512_legal512_prefer256
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR4:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx512_legal256_prefer256_call_avx512_legal512_prefer256
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR4:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx512_legal256_prefer256_call_avx512_legal512_prefer256
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR4:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx512_legal256_prefer256_call_avx512_legal512_prefer256
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR4:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @callee_avx512_legal256_prefer256_call_avx512_legal512_prefer256(<8 x i64>* %tmp2, <8 x i64>* %tmp)
   %tmp4 = load <8 x i64>, <8 x i64>* %tmp2, align 32
   store <8 x i64> %tmp4, <8 x i64>* %arg, align 2
   ret void
 }
 
 ; This should not promote
 define internal fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #2 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR5:#.*]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR5:#.*]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR5:#.*]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR5:#.*]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* %arg) #1 {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal256_prefer256
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR3]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal256_prefer256
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR3]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal256_prefer256
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR3]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx512_legal512_prefer256_call_avx512_legal256_prefer256
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR3]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* noalias nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @callee_avx512_legal512_prefer256_call_avx512_legal256_prefer256(<8 x i64>* %tmp2, <8 x i64>* %tmp)
   %tmp4 = load <8 x i64>, <8 x i64>* %tmp2, align 32
   store <8 x i64> %tmp4, <8 x i64>* %arg, align 2
   ret void
 }
 
 ; This should promote
 define internal fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #3 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR6:#.*]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR6:#.*]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR6:#.*]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR6:#.*]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[ARG1_PRIV:%.*]] = alloca <8 x i64>, align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP0]], <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* %arg) #4 {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx2_legal256_prefer256_call_avx2_legal512_prefer256
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR7:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx2_legal256_prefer256_call_avx2_legal512_prefer256
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR7:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx2_legal256_prefer256_call_avx2_legal512_prefer256
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR7:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx2_legal256_prefer256_call_avx2_legal512_prefer256
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR7:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*
   call void @llvm.memset.p0i8.i64(i8* align 32 %tmp3, i8 0, i64 32, i1 false)
   call fastcc void @callee_avx2_legal256_prefer256_call_avx2_legal512_prefer256(<8 x i64>* %tmp2, <8 x i64>* %tmp)
   %tmp4 = load <8 x i64>, <8 x i64>* %tmp2, align 32
   store <8 x i64> %tmp4, <8 x i64>* %arg, align 2
   ret void
 }
 
 ; This should promote
 define internal fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* %arg, <8 x i64>* readonly %arg1) #4 {
 ;
 ; IS________OPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________OPM-LABEL: define {{[^@]+}}@callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256
-; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[ARG1:%.*]]) [[ATTR8:#.*]] {
+; IS________OPM-SAME: (<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[ARG1:%.*]]) [[ATTR8:#.*]] {
 ; IS________OPM-NEXT:  bb:
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1]], align 64
 ; IS________OPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: argmemonly inlinehint nofree norecurse nosync nounwind uwtable willreturn
 ; IS________NPM-LABEL: define {{[^@]+}}@callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256
-; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR8:#.*]] {
+; IS________NPM-SAME: (<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[ARG:%.*]], <8 x i64> [[TMP0:%.*]]) [[ATTR8:#.*]] {
 ; IS________NPM-NEXT:  bb:
 ; IS________NPM-NEXT:    [[ARG1_PRIV:%.*]] = alloca <8 x i64>, align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP0]], <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load <8 x i64>, <8 x i64>* [[ARG1_PRIV]], align 64
 ; IS________NPM-NEXT:    store <8 x i64> [[TMP]], <8 x i64>* [[ARG]], align 64
 ; IS________NPM-NEXT:    ret void
 ;
 bb:
   %tmp = load <8 x i64>, <8 x i64>* %arg1
   store <8 x i64> %tmp, <8 x i64>* %arg
   ret void
 }
 
 define void @avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* %arg) #3 {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@avx2_legal512_prefer256_call_avx2_legal256_prefer256
 ; IS__TUNIT_OPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR9:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  bb:
 ; IS__TUNIT_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__TUNIT_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_OPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@avx2_legal512_prefer256_call_avx2_legal256_prefer256
 ; IS__TUNIT_NPM-SAME: (<8 x i64>* nocapture writeonly [[ARG:%.*]]) [[ATTR9:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  bb:
 ; IS__TUNIT_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__TUNIT_NPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__TUNIT_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__TUNIT_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@avx2_legal512_prefer256_call_avx2_legal256_prefer256
 ; IS__CGSCC_OPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR9:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  bb:
 ; IS__CGSCC_OPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
-; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) [[TMP]]) [[ATTR12]]
+; IS__CGSCC_OPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_OPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64>* nocapture nofree noundef nonnull readonly align 64 dereferenceable(64) maxobjsize(64) [[TMP]]) [[ATTR12]]
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_OPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly inlinehint norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@avx2_legal512_prefer256_call_avx2_legal256_prefer256
 ; IS__CGSCC_NPM-SAME: (<8 x i64>* nocapture nonnull writeonly align 2 dereferenceable(64) [[ARG:%.*]]) [[ATTR9:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  bb:
 ; IS__CGSCC_NPM-NEXT:    [[TMP:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = alloca <8 x i64>, align 32
 ; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = bitcast <8 x i64>* [[TMP]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.memset.p0i8.i64(i8* nocapture noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP3]], i8 noundef 0, i64 noundef 32, i1 noundef false) [[ATTR11]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load <8 x i64>, <8 x i64>* [[TMP]], align 64
-; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
+; IS__CGSCC_NPM-NEXT:    call fastcc void @callee_avx2_legal512_prefer256_call_avx2_legal256_prefer256(<8 x i64>* noalias nocapture nofree noundef nonnull writeonly align 64 dereferenceable(64) maxobjsize(64) [[TMP2]], <8 x i64> [[TMP0]]) [[ATTR12]]
 ; IS__CGSCC_NPM-NEXT:    [[TMP4:%.*]] = load <8 x i64>, <8 x i64>* [[TMP2]], align 64
 ; IS__CGSCC_NPM-NEXT:    store <8 x i64> [[TMP4]], <8 x i64>* [[ARG]], align 2
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 bb:
   %tmp = alloca <8 x i64>, align 32
   %tmp2 = alloca <8 x i64>, align 32
   %tmp3 = bitcast <8 x i64>* %tmp to i8*

llvm/test/Transforms/Attributor/ArgumentPromotion/X86/thiscall.ll

 
 target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
 target triple = "i386-pc-windows-msvc19.11.0"
 
 %struct.a = type { i8 }
 
 define internal x86_thiscallcc void @internalfun(%struct.a* %this, <{ %struct.a }>* inalloca) {
 ; CHECK-LABEL: define {{[^@]+}}@internalfun
-; CHECK-SAME: (%struct.a* noalias nocapture nofree readnone [[THIS:%.*]], <{ [[STRUCT_A:%.*]] }>* inalloca noundef nonnull align 4 dereferenceable(1) [[TMP0:%.*]]) {
+; CHECK-SAME: (%struct.a* noalias nocapture nofree readnone [[THIS:%.*]], <{ [[STRUCT_A:%.*]] }>* inalloca noundef nonnull align 4 dereferenceable(1) maxobjsize(1) [[TMP0:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = getelementptr inbounds <{ [[STRUCT_A]] }>, <{ [[STRUCT_A]] }>* [[TMP0]], i32 0, i32 0
 ; CHECK-NEXT:    [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_A]] }>, align 4
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds <{ [[STRUCT_A]] }>, <{ [[STRUCT_A]] }>* [[ARGMEM]], i32 0, i32 0
-; CHECK-NEXT:    [[CALL:%.*]] = call x86_thiscallcc %struct.a* @copy_ctor(%struct.a* noundef nonnull align 4 dereferenceable(1) [[TMP1]], %struct.a* noundef nonnull align 4 dereferenceable(1) [[A]])
-; CHECK-NEXT:    call void @ext(<{ [[STRUCT_A]] }>* inalloca noundef nonnull align 4 dereferenceable(1) [[ARGMEM]])
+; CHECK-NEXT:    [[CALL:%.*]] = call x86_thiscallcc %struct.a* @copy_ctor(%struct.a* noundef nonnull align 4 dereferenceable(1) maxobjsize(1) [[TMP1]], %struct.a* noundef nonnull align 4 dereferenceable(1) maxobjsize(1) [[A]])
+; CHECK-NEXT:    call void @ext(<{ [[STRUCT_A]] }>* inalloca noundef nonnull align 4 dereferenceable(1) maxobjsize(1) [[ARGMEM]])
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %a = getelementptr inbounds <{ %struct.a }>, <{ %struct.a }>* %0, i32 0, i32 0
   %argmem = alloca inalloca <{ %struct.a }>, align 4
   %1 = getelementptr inbounds <{ %struct.a }>, <{ %struct.a }>* %argmem, i32 0, i32 0
   %call = call x86_thiscallcc %struct.a* @copy_ctor(%struct.a* %1, %struct.a* dereferenceable(1) %a)
   call void @ext(<{ %struct.a }>* inalloca %argmem)
   ret void
 }
 
 ; This is here to ensure @internalfun is live.
 define void @exportedfun(%struct.a* %a) {
 ; CHECK-LABEL: define {{[^@]+}}@exportedfun
 ; CHECK-SAME: (%struct.a* nocapture nofree readnone [[A:%.*]]) {
 ; CHECK-NEXT:    [[INALLOCA_SAVE:%.*]] = tail call i8* @llvm.stacksave()
 ; CHECK-NEXT:    [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_A:%.*]] }>, align 4
-; CHECK-NEXT:    call x86_thiscallcc void @internalfun(%struct.a* noalias nocapture nofree readnone undef, <{ [[STRUCT_A]] }>* inalloca noundef nonnull align 4 dereferenceable(1) [[ARGMEM]])
+; CHECK-NEXT:    call x86_thiscallcc void @internalfun(%struct.a* noalias nocapture nofree readnone undef, <{ [[STRUCT_A]] }>* inalloca noundef nonnull align 4 dereferenceable(1) maxobjsize(1) [[ARGMEM]])
 ; CHECK-NEXT:    call void @llvm.stackrestore(i8* [[INALLOCA_SAVE]])
 ; CHECK-NEXT:    ret void
 ;
   %inalloca.save = tail call i8* @llvm.stacksave()
   %argmem = alloca inalloca <{ %struct.a }>, align 4
   call x86_thiscallcc void @internalfun(%struct.a* %a, <{ %struct.a }>* inalloca %argmem)
   call void @llvm.stackrestore(i8* %inalloca.save)
   ret void
 }
 
 declare x86_thiscallcc %struct.a* @copy_ctor(%struct.a* returned, %struct.a* dereferenceable(1))
 declare void @ext(<{ %struct.a }>* inalloca)
 declare i8* @llvm.stacksave()
 declare void @llvm.stackrestore(i8*)

llvm/test/Transforms/Attributor/ArgumentPromotion/alignment.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=11 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=11 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 define void @f() {
 ; IS________OPM-LABEL: define {{[^@]+}}@f() {
 ; IS________OPM-NEXT:  entry:
 ; IS________OPM-NEXT:    [[A:%.*]] = alloca i32, align 1
-; IS________OPM-NEXT:    call void @g(i32* noalias nocapture noundef nonnull readonly dereferenceable(4) [[A]])
+; IS________OPM-NEXT:    call void @g(i32* noalias nocapture noundef nonnull readonly dereferenceable(4) maxobjsize(4) [[A]])
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM-LABEL: define {{[^@]+}}@f() {
 ; IS________NPM-NEXT:  entry:
 ; IS________NPM-NEXT:    [[A:%.*]] = alloca i32, align 1
 ; IS________NPM-NEXT:    [[TMP0:%.*]] = load i32, i32* [[A]], align 1
 ; IS________NPM-NEXT:    call void @g(i32 [[TMP0]])
 ; IS________NPM-NEXT:    ret void
 ;
 entry:
   %a = alloca i32, align 1
   call void @g(i32* %a)
   ret void
 }
 
 define internal void @g(i32* %a) {
 ; IS________OPM-LABEL: define {{[^@]+}}@g
-; IS________OPM-SAME: (i32* noalias nocapture noundef nonnull readonly dereferenceable(4) [[A:%.*]]) {
+; IS________OPM-SAME: (i32* noalias nocapture noundef nonnull readonly dereferenceable(4) maxobjsize(4) [[A:%.*]]) {
 ; IS________OPM-NEXT:    [[AA:%.*]] = load i32, i32* [[A]], align 1
 ; IS________OPM-NEXT:    call void @z(i32 [[AA]])
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@g
 ; IS__TUNIT_NPM-SAME: (i32 [[TMP0:%.*]]) {
 ; IS__TUNIT_NPM-NEXT:    [[A_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[A_PRIV]], align 4

 
 declare void @z(i32)
 
 ; Test2
 ; Different alignemnt privatizable arguments
 define internal i32 @test(i32* %X, i64* %Y) {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@test
-; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[Y:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X:%.*]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[Y:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[A:%.*]] = load i32, i32* [[X]], align 4
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = load i64, i64* [[Y]], align 8
 ; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = add i32 [[A]], 1
 ; IS__TUNIT_OPM-NEXT:    [[D:%.*]] = add i64 [[B]], 1
 ; IS__TUNIT_OPM-NEXT:    [[COND:%.*]] = icmp sgt i64 [[D]], -1
 ; IS__TUNIT_OPM-NEXT:    br i1 [[COND]], label [[RETURN1:%.*]], label [[RETURN2:%.*]]
 ; IS__TUNIT_OPM:       Return1:
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[C]]

 ; IS__TUNIT_NPM-NEXT:    br i1 [[COND]], label [[RETURN1:%.*]], label [[RETURN2:%.*]]
 ; IS__TUNIT_NPM:       Return1:
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[C]]
 ; IS__TUNIT_NPM:       Return2:
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[A]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@test
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[Y:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X:%.*]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[Y:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = load i32, i32* [[X]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = load i64, i64* [[Y]], align 8
 ; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = add i32 [[A]], 1
 ; IS__CGSCC_OPM-NEXT:    [[D:%.*]] = add i64 [[B]], 1
 ; IS__CGSCC_OPM-NEXT:    [[COND:%.*]] = icmp sgt i64 [[D]], -1
 ; IS__CGSCC_OPM-NEXT:    br i1 [[COND]], label [[RETURN1:%.*]], label [[RETURN2:%.*]]
 ; IS__CGSCC_OPM:       Return1:
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[C]]
Return1:
   ret i32 %C
 Return2:
   ret i32 %A
 }
 
 define internal i32 @caller(i32* %A) {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@caller
-; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) [[ATTR1:#.*]] {
+; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i64, align 8
 ; IS__TUNIT_OPM-NEXT:    store i64 1, i64* [[B]], align 8
-; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[B]]) [[ATTR3:#.*]]
+; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[B]]) [[ATTR3:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@caller
 ; IS__TUNIT_NPM-SAME: (i32 [[TMP0:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[A_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[A_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i64, align 8
 ; IS__TUNIT_NPM-NEXT:    store i64 1, i64* [[B]], align 8
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = load i32, i32* [[A_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = load i64, i64* [[B]], align 8
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = call i32 @test(i32 [[TMP2]], i64 [[TMP3]]) [[ATTR3:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@caller
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) [[ATTR1:#.*]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i64, align 8
 ; IS__CGSCC_OPM-NEXT:    store i64 1, i64* [[B]], align 8
-; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[B]]) [[ATTR3:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A]], i64* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[B]]) [[ATTR3:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@caller
 ; IS__CGSCC_NPM-SAME: (i32 [[TMP0:%.*]]) [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:    [[A_PRIV:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 [[TMP0]], i32* [[A_PRIV]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i64, align 8

 }
 
 define i32 @callercaller() {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__TUNIT_OPM-SAME: () [[ATTR2:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 2, i32* [[B]], align 4
-; IS__TUNIT_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR4:#.*]]
+; IS__TUNIT_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR4:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__TUNIT_NPM-SAME: () [[ATTR2:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 2, i32* [[B]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[B]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[X:%.*]] = call i32 @caller(i32 [[TMP1]]) [[ATTR4:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__CGSCC_OPM-SAME: () [[ATTR2:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 2, i32* [[B]], align 4
-; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR4:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR4:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__CGSCC_NPM-SAME: () [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 2, i32* [[B]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[B]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[X:%.*]] = call i32 @caller(i32 [[TMP1]]) [[ATTR2:#.*]]
 ; IS__CGSCC_NPM-NEXT:    ret i32 [[X]]
 ;
   %B = alloca i32
   store i32 2, i32* %B
   %X = call i32 @caller(i32* %B)
   ret i32 %X
 }

llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll

 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@test
 ; IS__TUNIT_OPM-SAME: (i32* nocapture nofree readonly align 4 [[X:%.*]]) [[ATTR0]] {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 8
 ; IS__TUNIT_OPM-NEXT:    [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__TUNIT_OPM-NEXT:    store i32 1, i32* [[TMP1]], align 8
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__TUNIT_OPM-NEXT:    store i64 2, i64* [[TMP4]], align 4
-; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(12) [[S]], i32* nocapture nofree readonly byval align 4 [[X]], i32 noundef zeroext 0) [[ATTR0]]
+; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(12) maxobjsize(12) [[S]], i32* nocapture nofree readonly byval align 4 [[X]], i32 noundef zeroext 0) [[ATTR0]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@test
 ; IS__TUNIT_NPM-SAME: (i32* nocapture nofree readonly align 4 [[X:%.*]]) [[ATTR0]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 8
 ; IS__TUNIT_NPM-NEXT:    [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0

 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@test
 ; IS__CGSCC_OPM-SAME: (i32* nocapture nofree nonnull readnone align 4 dereferenceable(4) [[X:%.*]]) [[ATTR0]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 8
 ; IS__CGSCC_OPM-NEXT:    [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__CGSCC_OPM-NEXT:    store i32 1, i32* [[TMP1]], align 8
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__CGSCC_OPM-NEXT:    store i64 2, i64* [[TMP4]], align 4
-; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readnone byval align 8 dereferenceable(12) [[S]], i32* noalias nocapture nofree nonnull readnone byval align 4 dereferenceable(4) [[X]]) [[ATTR1:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readnone byval align 8 dereferenceable(12) maxobjsize(12) [[S]], i32* noalias nocapture nofree nonnull readnone byval align 4 dereferenceable(4) [[X]]) [[ATTR1:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@test
 ; IS__CGSCC_NPM-SAME: (i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[X:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 8
 ; IS__CGSCC_NPM-NEXT:    [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0

llvm/test/Transforms/Attributor/ArgumentPromotion/basictest.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=8 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=8 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 define internal i32 @test(i32* %X, i32* %Y) {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@test
-; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[Y:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[Y:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[A:%.*]] = load i32, i32* [[X]], align 4
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = load i32, i32* [[Y]], align 4
 ; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = add i32 [[A]], [[B]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@test
 ; IS__TUNIT_NPM-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[Y_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP1]], i32* [[Y_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[X_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[X_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[A:%.*]] = load i32, i32* [[X_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = load i32, i32* [[Y_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = add i32 [[A]], [[B]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@test
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[Y:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[Y:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = load i32, i32* [[X]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = load i32, i32* [[Y]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = add i32 [[A]], [[B]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@test
 ; IS__CGSCC_NPM-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) [[ATTR0:#.*]] {
;
   %B = load i32, i32* %Y
   %C = add i32 %A, %B
   ret i32 %C
 }
 
 define internal i32 @caller(i32* %B) {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@caller
-; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) [[ATTR1:#.*]] {
+; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 1, i32* [[A]], align 4
-; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR3:#.*]]
+; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR3:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@caller
 ; IS__TUNIT_NPM-SAME: (i32 [[TMP0:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[B_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[B_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 1, i32* [[A]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = load i32, i32* [[A]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP3:%.*]] = load i32, i32* [[B_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = call i32 @test(i32 [[TMP2]], i32 [[TMP3]]) [[ATTR3:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@caller
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) [[ATTR1:#.*]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 1, i32* [[A]], align 4
-; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR3:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR3:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[C]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@caller
 ; IS__CGSCC_NPM-SAME: (i32 [[TMP0:%.*]]) [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:    [[B_PRIV:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 [[TMP0]], i32* [[B_PRIV]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[A:%.*]] = alloca i32, align 4

 }
 
 define i32 @callercaller() {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__TUNIT_OPM-SAME: () [[ATTR2:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 2, i32* [[B]], align 4
-; IS__TUNIT_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR4:#.*]]
+; IS__TUNIT_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR4:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__TUNIT_NPM-SAME: () [[ATTR2:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 2, i32* [[B]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[B]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[X:%.*]] = call i32 @caller(i32 [[TMP1]]) [[ATTR4:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__CGSCC_OPM-SAME: () [[ATTR2:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 2, i32* [[B]], align 4
-; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR4:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR4:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__CGSCC_NPM-SAME: () [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 2, i32* [[B]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[B]], align 4

llvm/test/Transforms/Attributor/ArgumentPromotion/byval.ll

 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@main
 ; IS__TUNIT_OPM-SAME: () [[ATTR0]] {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 4
 ; IS__TUNIT_OPM-NEXT:    [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__TUNIT_OPM-NEXT:    store i32 1, i32* [[TMP1]], align 8
 ; IS__TUNIT_OPM-NEXT:    [[TMP4:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__TUNIT_OPM-NEXT:    store i64 2, i64* [[TMP4]], align 4
-; IS__TUNIT_OPM-NEXT:    [[C0:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(12) [[S]]) [[ATTR0]]
-; IS__TUNIT_OPM-NEXT:    [[C1:%.*]] = call i32 @g(%struct.ss* noalias nocapture nofree noundef nonnull readonly byval align 32 dereferenceable(12) [[S]]) [[ATTR0]]
+; IS__TUNIT_OPM-NEXT:    [[C0:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(12) maxobjsize(12) [[S]]) [[ATTR0]]
+; IS__TUNIT_OPM-NEXT:    [[C1:%.*]] = call i32 @g(%struct.ss* noalias nocapture nofree noundef nonnull readonly byval align 32 dereferenceable(12) maxobjsize(12) [[S]]) [[ATTR0]]
 ; IS__TUNIT_OPM-NEXT:    [[A:%.*]] = add i32 [[C0]], [[C1]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[A]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@main
 ; IS__TUNIT_NPM-SAME: () [[ATTR0]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 4

 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@main
 ; IS__CGSCC_OPM-SAME: () [[ATTR0]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[TMP1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__CGSCC_OPM-NEXT:    store i32 1, i32* [[TMP1]], align 32
 ; IS__CGSCC_OPM-NEXT:    [[TMP4:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__CGSCC_OPM-NEXT:    store i64 2, i64* [[TMP4]], align 4
-; IS__CGSCC_OPM-NEXT:    [[C0:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readnone byval align 32 dereferenceable(12) [[S]]) [[ATTR1:#.*]]
-; IS__CGSCC_OPM-NEXT:    [[C1:%.*]] = call i32 @g(%struct.ss* noalias nocapture nofree noundef nonnull readnone byval align 32 dereferenceable(12) [[S]]) [[ATTR1]]
+; IS__CGSCC_OPM-NEXT:    [[C0:%.*]] = call i32 @f(%struct.ss* noalias nocapture nofree noundef nonnull readnone byval align 32 dereferenceable(12) maxobjsize(12) [[S]]) [[ATTR1:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[C1:%.*]] = call i32 @g(%struct.ss* noalias nocapture nofree noundef nonnull readnone byval align 32 dereferenceable(12) maxobjsize(12) [[S]]) [[ATTR1]]
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = add i32 [[C0]], [[C1]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[A]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@main
 ; IS__CGSCC_NPM-SAME: () [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_SS:%.*]], align 4

llvm/test/Transforms/Attributor/ArgumentPromotion/control-flow2.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=8 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=8 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 define internal i32 @callee(i1 %C, i32* %P) {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@callee
-; IS__TUNIT_OPM-SAME: (i1 noundef [[C:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT_OPM-SAME: (i1 noundef [[C:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    br label [[F:%.*]]
 ; IS__TUNIT_OPM:       T:
 ; IS__TUNIT_OPM-NEXT:    unreachable
 ; IS__TUNIT_OPM:       F:
 ; IS__TUNIT_OPM-NEXT:    [[X:%.*]] = load i32, i32* [[P]], align 4
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@callee
 ; IS__TUNIT_NPM-SAME: (i1 noundef [[C:%.*]], i32 [[TMP0:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[P_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[P_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    br label [[F:%.*]]
 ; IS__TUNIT_NPM:       T:
 ; IS__TUNIT_NPM-NEXT:    unreachable
 ; IS__TUNIT_NPM:       F:
 ; IS__TUNIT_NPM-NEXT:    [[X:%.*]] = load i32, i32* [[P_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@callee
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    br label [[F:%.*]]
 ; IS__CGSCC_OPM:       T:
 ; IS__CGSCC_OPM-NEXT:    unreachable
 ; IS__CGSCC_OPM:       F:
 ; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = load i32, i32* [[P]], align 4
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn

 }
 
 define i32 @foo() {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@foo
 ; IS__TUNIT_OPM-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 17, i32* [[A]], align 4
-; IS__TUNIT_OPM-NEXT:    [[X:%.*]] = call i32 @callee(i1 noundef false, i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]]) [[ATTR2:#.*]]
+; IS__TUNIT_OPM-NEXT:    [[X:%.*]] = call i32 @callee(i1 noundef false, i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A]]) [[ATTR2:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@foo
 ; IS__TUNIT_NPM-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 17, i32* [[A]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[A]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[X:%.*]] = call i32 @callee(i1 noundef false, i32 [[TMP1]]) [[ATTR2:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@foo
 ; IS__CGSCC_OPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 17, i32* [[A]], align 4
-; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @callee(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A]]) [[ATTR2:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @callee(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A]]) [[ATTR2:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[X]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@foo
 ; IS__CGSCC_NPM-SAME: () [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 17, i32* [[A]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[A]], align 4

llvm/test/Transforms/Attributor/ArgumentPromotion/crash.ll

 
 define i32 @test_inf_promote_caller(i32 %arg) {
 ; IS__TUNIT____: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@test_inf_promote_caller
 ; IS__TUNIT____-SAME: (i32 [[ARG:%.*]]) [[ATTR0]] {
 ; IS__TUNIT____-NEXT:  bb:
 ; IS__TUNIT____-NEXT:    unreachable
 ;
-; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
+; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@test_inf_promote_caller
-; IS__CGSCC____-SAME: (i32 [[ARG:%.*]]) [[ATTR0]] {
+; IS__CGSCC____-SAME: (i32 [[ARG:%.*]]) [[ATTR1]] {
 ; IS__CGSCC____-NEXT:  bb:
-; IS__CGSCC____-NEXT:    [[TMP:%.*]] = alloca [[S:%.*]], align 8
-; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = alloca [[S]], align 8
-; IS__CGSCC____-NEXT:    unreachable
+; IS__CGSCC____-NEXT:    ret i32 0
 ;
 bb:
   %tmp = alloca %S
   %tmp1 = alloca %S
   %tmp2 = call i32 @test_inf_promote_callee(%S* %tmp, %S* %tmp1)
 
   ret i32 0
 }
 
 define internal i32 @test_inf_promote_callee(%S* %arg, %S* %arg1) {
-; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
-; IS__CGSCC____-LABEL: define {{[^@]+}}@test_inf_promote_callee
-; IS__CGSCC____-SAME: () [[ATTR0]] {
-; IS__CGSCC____-NEXT:  bb:
-; IS__CGSCC____-NEXT:    unreachable
-;
 bb:
   %tmp = getelementptr %S, %S* %arg1, i32 0, i32 0
   %tmp2 = load %S*, %S** %tmp
   %tmp3 = getelementptr %S, %S* %arg, i32 0, i32 0
   %tmp4 = load %S*, %S** %tmp3
   %tmp5 = call i32 @test_inf_promote_callee(%S* %tmp4, %S* %tmp2)
 
   ret i32 0
 }
 
 declare i32 @wibble(...)

llvm/test/Transforms/Attributor/ArgumentPromotion/inalloca.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 %struct.ss = type { i32, i32 }
 
 ; Argpromote + sroa should change this to passing the two integers by value.
 define internal i32 @f(%struct.ss* inalloca  %s) {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind readonly willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@f
-; IS__TUNIT____-SAME: (%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) [[S:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT____-SAME: (%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) maxobjsize(8) [[S:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    [[F0:%.*]] = getelementptr [[STRUCT_SS:%.*]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__TUNIT____-NEXT:    [[F1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__TUNIT____-NEXT:    [[A:%.*]] = load i32, i32* [[F0]], align 4
 ; IS__TUNIT____-NEXT:    [[B:%.*]] = load i32, i32* [[F1]], align 4
 ; IS__TUNIT____-NEXT:    [[R:%.*]] = add i32 [[A]], [[B]]
 ; IS__TUNIT____-NEXT:    ret i32 [[R]]
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind readonly willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@f
-; IS__CGSCC____-SAME: (%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) [[S:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC____-SAME: (%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) maxobjsize(8) [[S:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    [[F0:%.*]] = getelementptr [[STRUCT_SS:%.*]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__CGSCC____-NEXT:    [[F1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__CGSCC____-NEXT:    [[A:%.*]] = load i32, i32* [[F0]], align 4
 ; IS__CGSCC____-NEXT:    [[B:%.*]] = load i32, i32* [[F1]], align 4
 ; IS__CGSCC____-NEXT:    [[R:%.*]] = add i32 [[A]], [[B]]
 ; IS__CGSCC____-NEXT:    ret i32 [[R]]
 ;

 ; IS__TUNIT____-LABEL: define {{[^@]+}}@main
 ; IS__TUNIT____-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    [[S:%.*]] = alloca inalloca [[STRUCT_SS:%.*]], align 4
 ; IS__TUNIT____-NEXT:    [[F0:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__TUNIT____-NEXT:    [[F1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__TUNIT____-NEXT:    store i32 1, i32* [[F0]], align 4
 ; IS__TUNIT____-NEXT:    store i32 2, i32* [[F1]], align 4
-; IS__TUNIT____-NEXT:    [[R:%.*]] = call i32 @f(%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) [[S]]) [[ATTR2:#.*]]
+; IS__TUNIT____-NEXT:    [[R:%.*]] = call i32 @f(%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) maxobjsize(8) [[S]]) [[ATTR2:#.*]]
 ; IS__TUNIT____-NEXT:    ret i32 [[R]]
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@main
 ; IS__CGSCC____-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    [[S:%.*]] = alloca inalloca [[STRUCT_SS:%.*]], align 4
 ; IS__CGSCC____-NEXT:    [[F0:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 0
 ; IS__CGSCC____-NEXT:    [[F1:%.*]] = getelementptr [[STRUCT_SS]], %struct.ss* [[S]], i32 0, i32 1
 ; IS__CGSCC____-NEXT:    store i32 1, i32* [[F0]], align 4
 ; IS__CGSCC____-NEXT:    store i32 2, i32* [[F1]], align 4
-; IS__CGSCC____-NEXT:    [[R:%.*]] = call i32 @f(%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) [[S]]) [[ATTR2:#.*]]
+; IS__CGSCC____-NEXT:    [[R:%.*]] = call i32 @f(%struct.ss* inalloca noalias nocapture nofree noundef nonnull align 4 dereferenceable(8) maxobjsize(8) [[S]]) [[ATTR2:#.*]]
 ; IS__CGSCC____-NEXT:    ret i32 [[R]]
 ;
 entry:
   %S = alloca inalloca %struct.ss
   %f0 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 0
   %f1 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 1
   store i32 1, i32* %f0, align 4
   store i32 2, i32* %f1, align 4
   %r = call i32 @f(%struct.ss* inalloca %S)
   ret i32 %r
 }
 
 ; Argpromote can't promote %a because of the icmp use.
 define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b) nounwind  {
-; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
-; IS__CGSCC____-LABEL: define {{[^@]+}}@g
-; IS__CGSCC____-SAME: (%struct.ss* noalias nocapture nofree nonnull readnone align 4 dereferenceable(8) [[A:%.*]], %struct.ss* inalloca noalias nocapture nofree nonnull writeonly align 4 dereferenceable(8) [[B:%.*]]) [[ATTR1]] {
-; IS__CGSCC____-NEXT:  entry:
-; IS__CGSCC____-NEXT:    ret i1 undef
-;
 entry:
   %c = icmp eq %struct.ss* %a, %b
   ret i1 %c
 }
 
 define i32 @test() {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@test

llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead.ll

 }
 
 define internal i32 @caller(i32* %B) {
 ; IS__CGSCC_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@caller
 ; IS__CGSCC_OPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 1, i32* [[A]], align 4
-; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A]]) [[ATTR3:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[A]]) [[ATTR3:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 undef
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@caller
 ; IS__CGSCC_NPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 1, i32* [[A]], align 4
-; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A]]) [[ATTR2:#.*]]
+; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[A]]) [[ATTR2:#.*]]
 ; IS__CGSCC_NPM-NEXT:    unreachable
 ;
   %A = alloca i32
   store i32 1, i32* %A
   %C = call i32 @test(i32* %A, i32* %B)
   ret i32 %C
 }
 

llvm/test/Transforms/Attributor/ArgumentPromotion/live_called_from_dead_2.ll

dead:
   call i32 @caller(i32* null)
   call void @dead()
   ret i32 1
 }
 
 define internal i32 @caller(i32* %B) {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@caller
-; IS__TUNIT____-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT____-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT____-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__TUNIT____-NEXT:    store i32 1, i32* [[A]], align 4
-; IS__TUNIT____-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) [[ATTR2:#.*]]
+; IS__TUNIT____-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR2:#.*]]
 ; IS__TUNIT____-NEXT:    ret i32 0
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@caller
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 1, i32* [[A]], align 4
-; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) [[ATTR2:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR2:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 undef
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn writeonly
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@caller
-; IS__CGSCC_NPM-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B:%.*]]) [[ATTR0]] {
+; IS__CGSCC_NPM-SAME: (i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR0]] {
 ; IS__CGSCC_NPM-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 1, i32* [[A]], align 4
-; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) [[ATTR2:#.*]]
+; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = call i32 @test(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR2:#.*]]
 ; IS__CGSCC_NPM-NEXT:    unreachable
 ;
   %A = alloca i32
   store i32 1, i32* %A
   %C = call i32 @test(i32* %B, i32* %A)
   ret i32 %C
 }
 
 define i32 @callercaller() {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@callercaller
 ; IS__TUNIT____-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT____-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT____-NEXT:    store i32 2, i32* [[B]], align 4
-; IS__TUNIT____-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) [[ATTR2]]
+; IS__TUNIT____-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR2]]
 ; IS__TUNIT____-NEXT:    ret i32 0
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__CGSCC_OPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 2, i32* [[B]], align 4
-; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) [[ATTR3:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR3:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 0
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@callercaller
 ; IS__CGSCC_NPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 2, i32* [[B]], align 4
-; IS__CGSCC_NPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[B]]) [[ATTR3:#.*]]
+; IS__CGSCC_NPM-NEXT:    [[X:%.*]] = call i32 @caller(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR3:#.*]]
 ; IS__CGSCC_NPM-NEXT:    ret i32 0
 ;
   %B = alloca i32
   store i32 2, i32* %B
   %X = call i32 @caller(i32* %B)
   ret i32 %X
 }
 

llvm/test/Transforms/Attributor/ArgumentPromotion/naked_functions.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 ; Don't promote paramaters of/arguments to naked functions
 
 @g = common global i32 0, align 4
 
 define i32 @bar() {
 ; CHECK-LABEL: define {{[^@]+}}@bar() {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[CALL:%.*]] = call i32 @foo(i32* noundef nonnull align 4 dereferenceable(4) @g)
+; CHECK-NEXT:    [[CALL:%.*]] = call i32 @foo(i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) @g)
 ; CHECK-NEXT:    ret i32 [[CALL]]
 ;
 entry:
   %call = call i32 @foo(i32* @g)
   ret i32 %call
 }
 
 define internal i32 @foo(i32*) #0 {

llvm/test/Transforms/Attributor/ArgumentPromotion/profile.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=3 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 ; Checks if !prof metadata is corret in deadargelim.
 
 define void @caller() #0 {
 ; IS________OPM-LABEL: define {{[^@]+}}@caller() {
 ; IS________OPM-NEXT:    [[X:%.*]] = alloca i32, align 4
 ; IS________OPM-NEXT:    store i32 42, i32* [[X]], align 4
-; IS________OPM-NEXT:    call void @promote_i32_ptr(i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[X]]), !prof !0
+; IS________OPM-NEXT:    call void @promote_i32_ptr(i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[X]]), !prof !0
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM-LABEL: define {{[^@]+}}@caller() {
 ; IS________NPM-NEXT:    [[X:%.*]] = alloca i32, align 4
 ; IS________NPM-NEXT:    store i32 42, i32* [[X]], align 4
 ; IS________NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[X]], align 4
 ; IS________NPM-NEXT:    call void @promote_i32_ptr(i32 [[TMP1]]), !prof !0
 ; IS________NPM-NEXT:    ret void
 ;
   %x = alloca i32
   store i32 42, i32* %x
   call void @promote_i32_ptr(i32* %x), !prof !0
   ret void
 }
 
 define internal void @promote_i32_ptr(i32* %xp) {
 ; IS________OPM-LABEL: define {{[^@]+}}@promote_i32_ptr
-; IS________OPM-SAME: (i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[XP:%.*]]) {
+; IS________OPM-SAME: (i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[XP:%.*]]) {
 ; IS________OPM-NEXT:    [[X:%.*]] = load i32, i32* [[XP]], align 4
 ; IS________OPM-NEXT:    call void @use_i32(i32 [[X]])
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM-LABEL: define {{[^@]+}}@promote_i32_ptr
 ; IS________NPM-SAME: (i32 [[TMP0:%.*]]) {
 ; IS________NPM-NEXT:    [[XP_PRIV:%.*]] = alloca i32, align 4
 ; IS________NPM-NEXT:    store i32 [[TMP0]], i32* [[XP_PRIV]], align 4

llvm/test/Transforms/Attributor/ArgumentPromotion/reserve-tbaa.ll

 @e = global i32** @a, align 8
 @g = global i32 0, align 4
 @c = global i64 0, align 8
 @d = global i8 0, align 1
 
 define internal fastcc void @fn(i32* nocapture readonly %p1, i64* nocapture readonly %p2) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@fn
-; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[P1:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P1:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    [[TMP0:%.*]] = load i32, i32* @g, align 4, [[TBAA0:!tbaa !.*]]
 ; IS__TUNIT____-NEXT:    [[CONV1:%.*]] = trunc i32 [[TMP0]] to i8
 ; IS__TUNIT____-NEXT:    store i8 [[CONV1]], i8* @d, align 1, [[TBAA4:!tbaa !.*]]
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@fn

 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@main
 ; IS__TUNIT____-SAME: () [[ATTR0]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    [[TMP0:%.*]] = load i32**, i32*** @e, align 8, [[TBAA5:!tbaa !.*]]
 ; IS__TUNIT____-NEXT:    store i32* @g, i32** [[TMP0]], align 8, [[TBAA5]]
 ; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = load i32*, i32** @a, align 8, [[TBAA5]]
 ; IS__TUNIT____-NEXT:    store i32 1, i32* [[TMP1]], align 4, [[TBAA0]]
-; IS__TUNIT____-NEXT:    call fastcc void @fn(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) @g) [[ATTR0]]
+; IS__TUNIT____-NEXT:    call fastcc void @fn(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) @g) [[ATTR0]]
 ; IS__TUNIT____-NEXT:    ret i32 0
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@main
 ; IS__CGSCC____-SAME: () [[ATTR0]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    [[TMP0:%.*]] = load i32**, i32*** @e, align 8, [[TBAA5:!tbaa !.*]]
 ; IS__CGSCC____-NEXT:    store i32* @g, i32** [[TMP0]], align 8, [[TBAA5]]

llvm/test/Transforms/Attributor/ArgumentPromotion/sret.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-pc-windows-msvc"
 
 define internal void @add({i32, i32}* %this, i32* sret %r) {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@add
-; IS__TUNIT_OPM-SAME: ({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[THIS:%.*]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT_OPM-SAME: ({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[THIS:%.*]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[AP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 0
 ; IS__TUNIT_OPM-NEXT:    [[BP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 1
 ; IS__TUNIT_OPM-NEXT:    [[A:%.*]] = load i32, i32* [[AP]], align 8
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = load i32, i32* [[BP]], align 4
 ; IS__TUNIT_OPM-NEXT:    [[AB:%.*]] = add i32 [[A]], [[B]]
 ; IS__TUNIT_OPM-NEXT:    store i32 [[AB]], i32* [[R]], align 4
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@add
-; IS__TUNIT_NPM-SAME: ({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[THIS:%.*]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT_NPM-SAME: ({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[THIS:%.*]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[AP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 0
 ; IS__TUNIT_NPM-NEXT:    [[BP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 1
 ; IS__TUNIT_NPM-NEXT:    [[A:%.*]] = load i32, i32* [[AP]], align 8
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = load i32, i32* [[BP]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[AB:%.*]] = add i32 [[A]], [[B]]
 ; IS__TUNIT_NPM-NEXT:    store i32 [[AB]], i32* [[R]], align 4
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@add
-; IS__CGSCC_OPM-SAME: ({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[THIS:%.*]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC_OPM-SAME: ({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[THIS:%.*]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[AP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 0
 ; IS__CGSCC_OPM-NEXT:    [[BP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 1
 ; IS__CGSCC_OPM-NEXT:    [[A:%.*]] = load i32, i32* [[AP]], align 8
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = load i32, i32* [[BP]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[AB:%.*]] = add i32 [[A]], [[B]]
 ; IS__CGSCC_OPM-NEXT:    store i32 [[AB]], i32* [[R]], align 4
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@add
-; IS__CGSCC_NPM-SAME: ({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[THIS:%.*]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC_NPM-SAME: ({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[THIS:%.*]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC_NPM-NEXT:    [[AP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 0
 ; IS__CGSCC_NPM-NEXT:    [[BP:%.*]] = getelementptr { i32, i32 }, { i32, i32 }* [[THIS]], i32 0, i32 1
 ; IS__CGSCC_NPM-NEXT:    [[A:%.*]] = load i32, i32* [[AP]], align 8
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = load i32, i32* [[BP]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[AB:%.*]] = add i32 [[A]], [[B]]
 ; IS__CGSCC_NPM-NEXT:    store i32 [[AB]], i32* [[R]], align 4
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
   %ap = getelementptr {i32, i32}, {i32, i32}* %this, i32 0, i32 0
   %bp = getelementptr {i32, i32}, {i32, i32}* %this, i32 0, i32 1
   %a = load i32, i32* %ap
   %b = load i32, i32* %bp
   %ab = add i32 %a, %b
   store i32 %ab, i32* %r
   ret void
 }
 
 define void @f() {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@f
 ; IS__TUNIT_OPM-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[R:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    [[PAIR:%.*]] = alloca { i32, i32 }, align 8
-; IS__TUNIT_OPM-NEXT:    call void @add({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[PAIR]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R]]) [[ATTR2:#.*]]
+; IS__TUNIT_OPM-NEXT:    call void @add({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[PAIR]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R]]) [[ATTR2:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@f
 ; IS__TUNIT_NPM-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[R:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    [[PAIR:%.*]] = alloca { i32, i32 }, align 8
-; IS__TUNIT_NPM-NEXT:    call void @add({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[PAIR]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R]]) [[ATTR2:#.*]]
+; IS__TUNIT_NPM-NEXT:    call void @add({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[PAIR]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R]]) [[ATTR2:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@f
 ; IS__CGSCC_OPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[R:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    [[PAIR:%.*]] = alloca { i32, i32 }, align 8
-; IS__CGSCC_OPM-NEXT:    call void @add({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[PAIR]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R]]) [[ATTR2:#.*]]
+; IS__CGSCC_OPM-NEXT:    call void @add({ i32, i32 }* nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[PAIR]], i32* nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R]]) [[ATTR2:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@f
 ; IS__CGSCC_NPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:    [[R:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    [[PAIR:%.*]] = alloca { i32, i32 }, align 8
-; IS__CGSCC_NPM-NEXT:    call void @add({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) [[PAIR]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) [[R]]) [[ATTR2:#.*]]
+; IS__CGSCC_NPM-NEXT:    call void @add({ i32, i32 }* noalias nocapture nofree noundef nonnull readonly align 8 dereferenceable(8) maxobjsize(8) [[PAIR]], i32* noalias nocapture nofree noundef nonnull sret writeonly align 4 dereferenceable(4) maxobjsize(4) [[R]]) [[ATTR2:#.*]]
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
   %r = alloca i32
   %pair = alloca {i32, i32}
 
   call void @add({i32, i32}* %pair, i32* sret %r)
   ret void
 }

llvm/test/Transforms/Attributor/ArgumentPromotion/tail.ll

 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@bar
 ; IS__CGSCC_NPM-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) {
 ; IS__CGSCC_NPM-NEXT:    [[DATA_PRIV:%.*]] = alloca [[PAIR:%.*]], align 8
 ; IS__CGSCC_NPM-NEXT:    [[DATA_PRIV_CAST:%.*]] = bitcast %pair* [[DATA_PRIV]] to i32*
 ; IS__CGSCC_NPM-NEXT:    store i32 [[TMP0]], i32* [[DATA_PRIV_CAST]], align 8
 ; IS__CGSCC_NPM-NEXT:    [[DATA_PRIV_0_1:%.*]] = getelementptr [[PAIR]], %pair* [[DATA_PRIV]], i32 0, i32 1
 ; IS__CGSCC_NPM-NEXT:    store i32 [[TMP1]], i32* [[DATA_PRIV_0_1]], align 4
-; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = call i8* @foo(%pair* noundef nonnull align 8 dereferenceable(8) [[DATA_PRIV]])
+; IS__CGSCC_NPM-NEXT:    [[TMP3:%.*]] = call i8* @foo(%pair* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[DATA_PRIV]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
   tail call i8* @foo(%pair* %Data)
   ret void
 }
 
 define void @zed(%pair* byval %Data) {
 ; IS________OPM-LABEL: define {{[^@]+}}@zed

llvm/test/Transforms/Attributor/ArgumentPromotion/variadic.ll

 
 @t45 = internal global %struct.tt0 { i64 1335139741, i64 438042995 }, align 8
 
 ; Function Attrs: nounwind uwtable
 define i32 @main(i32 %argc, i8** nocapture readnone %argv) #0 {
 ; CHECK-LABEL: define {{[^@]+}}@main
 ; CHECK-SAME: (i32 [[ARGC:%.*]], i8** nocapture nofree readnone [[ARGV:%.*]]) {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    tail call void (i8*, i8*, i8*, i8*, i8*, ...) @callee_t0f(i8* undef, i8* undef, i8* undef, i8* undef, i8* undef, %struct.tt0* noundef nonnull byval align 8 dereferenceable(16) @t45)
+; CHECK-NEXT:    tail call void (i8*, i8*, i8*, i8*, i8*, ...) @callee_t0f(i8* undef, i8* undef, i8* undef, i8* undef, i8* undef, %struct.tt0* noundef nonnull byval align 8 dereferenceable(16) maxobjsize(16) @t45)
 ; CHECK-NEXT:    ret i32 0
 ;
 entry:
   tail call void (i8*, i8*, i8*, i8*, i8*, ...) @callee_t0f(i8* undef, i8* undef, i8* undef, i8* undef, i8* undef, %struct.tt0* byval align 8 @t45)
   ret i32 0
 }
 
 ; Function Attrs: nounwind uwtable

llvm/test/Transforms/Attributor/IPConstantProp/2009-09-24-byval-ptr.ll

entry:
   ret i32 %5
 }
 
 define i32 @unions() nounwind {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@unions
 ; IS__TUNIT_OPM-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT_OPM-NEXT:  entry:
-; IS__TUNIT_OPM-NEXT:    [[RESULT:%.*]] = call i32 @vfu2(%struct.MYstr* nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(8) @mystr) [[ATTR0]]
+; IS__TUNIT_OPM-NEXT:    [[RESULT:%.*]] = call i32 @vfu2(%struct.MYstr* nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(8) maxobjsize(8) @mystr) [[ATTR0]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[RESULT]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@unions
 ; IS__TUNIT_NPM-SAME: () [[ATTR1:#.*]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[MYSTR_CAST:%.*]] = bitcast %struct.MYstr* @mystr to i8*
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load i8, i8* [[MYSTR_CAST]], align 8
entry:
   ret i32 %5
 }
 
 define i32 @unions_v2() nounwind {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@unions_v2
 ; IS__TUNIT_OPM-SAME: () [[ATTR2]] {
 ; IS__TUNIT_OPM-NEXT:  entry:
-; IS__TUNIT_OPM-NEXT:    [[RESULT:%.*]] = call i32 @vfu2_v2(%struct.MYstr* nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(8) @mystr) [[ATTR2]]
+; IS__TUNIT_OPM-NEXT:    [[RESULT:%.*]] = call i32 @vfu2_v2(%struct.MYstr* nocapture nofree noundef nonnull readonly byval align 8 dereferenceable(8) maxobjsize(8) @mystr) [[ATTR2]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[RESULT]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@unions_v2
 ; IS__TUNIT_NPM-SAME: () [[ATTR2]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[MYSTR_CAST:%.*]] = bitcast %struct.MYstr* @mystr to i8*
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load i8, i8* [[MYSTR_CAST]], align 8
 ; IS__TUNIT_NPM-NEXT:    [[MYSTR_0_1:%.*]] = getelementptr [[STRUCT_MYSTR:%.*]], %struct.MYstr* @mystr, i32 0, i32 1
 ; IS__TUNIT_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[MYSTR_0_1]], align 8
 ; IS__TUNIT_NPM-NEXT:    [[RESULT:%.*]] = call i32 @vfu2_v2(i8 [[TMP0]], i32 [[TMP1]]) [[ATTR2]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[RESULT]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@unions_v2
 ; IS__CGSCC_OPM-SAME: () [[ATTR0]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
-; IS__CGSCC_OPM-NEXT:    [[RESULT:%.*]] = call i32 @vfu2_v2(%struct.MYstr* noalias nocapture nofree noundef nonnull readnone byval align 8 dereferenceable(8) @mystr) [[ATTR3:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[RESULT:%.*]] = call i32 @vfu2_v2(%struct.MYstr* noalias nocapture nofree noundef nonnull readnone byval align 8 dereferenceable(8) maxobjsize(8) @mystr) [[ATTR3:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[RESULT]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@unions_v2
 ; IS__CGSCC_NPM-SAME: () [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[MYSTR_CAST1:%.*]] = bitcast %struct.MYstr* @mystr to i8*
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = load i8, i8* [[MYSTR_CAST1]], align 8

llvm/test/Transforms/Attributor/IPConstantProp/openmp_parallel_for.ll

 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@foo
 ; IS__TUNIT_OPM-SAME: (i32 [[N:%.*]]) {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[N_ADDR:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    [[P:%.*]] = alloca float, align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 [[N]], i32* [[N_ADDR]], align 4
 ; IS__TUNIT_OPM-NEXT:    store float 3.000000e+00, float* [[P]], align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 7, i32* [[N_ADDR]], align 4
-; IS__TUNIT_OPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull readonly align 4 dereferenceable(4) [[N_ADDR]], float* nocapture noundef nonnull readonly align 4 dereferenceable(4) [[P]], i64 undef)
+; IS__TUNIT_OPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[N_ADDR]], float* nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P]], i64 undef)
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@foo
 ; IS__TUNIT_NPM-SAME: (i32 [[N:%.*]]) {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[N_ADDR:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    [[P:%.*]] = alloca float, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[N]], i32* [[N_ADDR]], align 4
 ; IS__TUNIT_NPM-NEXT:    store float 3.000000e+00, float* [[P]], align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 7, i32* [[N_ADDR]], align 4
-; IS__TUNIT_NPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[N_ADDR]], float* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[P]], i64 undef)
+; IS__TUNIT_NPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[N_ADDR]], float* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P]], i64 undef)
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@foo
 ; IS__CGSCC_OPM-SAME: (i32 [[N:%.*]]) {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[N_ADDR:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    [[P:%.*]] = alloca float, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 [[N]], i32* [[N_ADDR]], align 4
 ; IS__CGSCC_OPM-NEXT:    store float 3.000000e+00, float* [[P]], align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 7, i32* [[N_ADDR]], align 4
-; IS__CGSCC_OPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull readonly align 4 dereferenceable(4) [[N_ADDR]], float* nocapture noundef nonnull readonly align 4 dereferenceable(4) [[P]], i64 noundef 4617315517961601024)
+; IS__CGSCC_OPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[N_ADDR]], float* nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P]], i64 noundef 4617315517961601024)
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@foo
 ; IS__CGSCC_NPM-SAME: (i32 [[N:%.*]]) {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[N_ADDR:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    [[P:%.*]] = alloca float, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 [[N]], i32* [[N_ADDR]], align 4
 ; IS__CGSCC_NPM-NEXT:    store float 3.000000e+00, float* [[P]], align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 7, i32* [[N_ADDR]], align 4
-; IS__CGSCC_NPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[N_ADDR]], float* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[P]], i64 noundef 4617315517961601024)
+; IS__CGSCC_NPM-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB1:@.*]], i32 noundef 3, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[N_ADDR]], float* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P]], i64 noundef 4617315517961601024)
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
   %N.addr = alloca i32, align 4
   %p = alloca float, align 4
   store i32 %N, i32* %N.addr, align 4
   store float 3.000000e+00, float* %p, align 4
   store i32 7, i32* %N.addr, align 4
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @1, i32 3, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, float*, i64)* @.omp_outlined. to void (i32*, i32*, ...)*), i32* nonnull %N.addr, float* nonnull %p, i64 4617315517961601024)
   ret void
 }
 
 define internal void @.omp_outlined.(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %N, float* dereferenceable(4) %p, i64 %q) {
 ; IS________OPM-LABEL: define {{[^@]+}}@.omp_outlined.
-; IS________OPM-SAME: (i32* noalias nocapture readonly [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull readonly align 4 dereferenceable(4) [[N:%.*]], float* nocapture noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]], i64 [[Q:%.*]]) {
+; IS________OPM-SAME: (i32* noalias nocapture readonly [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[N:%.*]], float* nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P:%.*]], i64 [[Q:%.*]]) {
 ; IS________OPM-NEXT:  entry:
 ; IS________OPM-NEXT:    [[Q_ADDR:%.*]] = alloca i64, align 8
 ; IS________OPM-NEXT:    [[DOTOMP_LB:%.*]] = alloca i32, align 4
 ; IS________OPM-NEXT:    [[DOTOMP_UB:%.*]] = alloca i32, align 4
 ; IS________OPM-NEXT:    [[DOTOMP_STRIDE:%.*]] = alloca i32, align 4
 ; IS________OPM-NEXT:    [[DOTOMP_IS_LAST:%.*]] = alloca i32, align 4
 ; IS________OPM-NEXT:    store i64 4617315517961601024, i64* [[Q_ADDR]], align 8
 ; IS________OPM-NEXT:    [[CONV:%.*]] = bitcast i64* [[Q_ADDR]] to double*
 ; IS________OPM-NEXT:    [[TMP:%.*]] = load i32, i32* [[N]], align 4
 ; IS________OPM-NEXT:    [[SUB3:%.*]] = add nsw i32 [[TMP]], -3
 ; IS________OPM-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[TMP]], 2
 ; IS________OPM-NEXT:    br i1 [[CMP]], label [[OMP_PRECOND_THEN:%.*]], label [[OMP_PRECOND_END:%.*]]
 ; IS________OPM:       omp.precond.then:
 ; IS________OPM-NEXT:    store i32 0, i32* [[DOTOMP_LB]], align 4
 ; IS________OPM-NEXT:    store i32 [[SUB3]], i32* [[DOTOMP_UB]], align 4
 ; IS________OPM-NEXT:    store i32 1, i32* [[DOTOMP_STRIDE]], align 4
 ; IS________OPM-NEXT:    store i32 0, i32* [[DOTOMP_IS_LAST]], align 4
 ; IS________OPM-NEXT:    [[TMP5:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
-; IS________OPM-NEXT:    call void @__kmpc_for_static_init_4(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0:@.*]], i32 [[TMP5]], i32 noundef 34, i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_IS_LAST]], i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_LB]], i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_UB]], i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_STRIDE]], i32 noundef 1, i32 noundef 1)
+; IS________OPM-NEXT:    call void @__kmpc_for_static_init_4(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0:@.*]], i32 [[TMP5]], i32 noundef 34, i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_IS_LAST]], i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_LB]], i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_UB]], i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_STRIDE]], i32 noundef 1, i32 noundef 1)
 ; IS________OPM-NEXT:    [[TMP6:%.*]] = load i32, i32* [[DOTOMP_UB]], align 4
 ; IS________OPM-NEXT:    [[CMP6:%.*]] = icmp sgt i32 [[TMP6]], [[SUB3]]
 ; IS________OPM-NEXT:    br i1 [[CMP6]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
 ; IS________OPM:       cond.true:
 ; IS________OPM-NEXT:    br label [[COND_END:%.*]]
 ; IS________OPM:       cond.false:
 ; IS________OPM-NEXT:    [[TMP7:%.*]] = load i32, i32* [[DOTOMP_UB]], align 4
 ; IS________OPM-NEXT:    br label [[COND_END]]

 ; IS________OPM-NEXT:    br label [[OMP_INNER_FOR_INC]]
 ; IS________OPM:       omp.inner.for.inc:
 ; IS________OPM-NEXT:    [[ADD11]] = add nsw i32 [[DOTOMP_IV_0]], 1
 ; IS________OPM-NEXT:    br label [[OMP_INNER_FOR_COND]]
 ; IS________OPM:       omp.inner.for.end:
 ; IS________OPM-NEXT:    br label [[OMP_LOOP_EXIT:%.*]]
 ; IS________OPM:       omp.loop.exit:
 ; IS________OPM-NEXT:    [[TMP12:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
-; IS________OPM-NEXT:    call void @__kmpc_for_static_fini(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 [[TMP12]])
+; IS________OPM-NEXT:    call void @__kmpc_for_static_fini(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 [[TMP12]])
 ; IS________OPM-NEXT:    br label [[OMP_PRECOND_END]]
 ; IS________OPM:       omp.precond.end:
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM-LABEL: define {{[^@]+}}@.omp_outlined.
-; IS________NPM-SAME: (i32* noalias nocapture readonly [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[N:%.*]], float* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) [[P:%.*]], i64 [[Q:%.*]]) {
+; IS________NPM-SAME: (i32* noalias nocapture readonly [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[N:%.*]], float* noalias nocapture noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[P:%.*]], i64 [[Q:%.*]]) {
 ; IS________NPM-NEXT:  entry:
 ; IS________NPM-NEXT:    [[Q_ADDR:%.*]] = alloca i64, align 8
 ; IS________NPM-NEXT:    [[DOTOMP_LB:%.*]] = alloca i32, align 4
 ; IS________NPM-NEXT:    [[DOTOMP_UB:%.*]] = alloca i32, align 4
 ; IS________NPM-NEXT:    [[DOTOMP_STRIDE:%.*]] = alloca i32, align 4
 ; IS________NPM-NEXT:    [[DOTOMP_IS_LAST:%.*]] = alloca i32, align 4
 ; IS________NPM-NEXT:    store i64 4617315517961601024, i64* [[Q_ADDR]], align 8
 ; IS________NPM-NEXT:    [[CONV:%.*]] = bitcast i64* [[Q_ADDR]] to double*
 ; IS________NPM-NEXT:    [[TMP:%.*]] = load i32, i32* [[N]], align 4
 ; IS________NPM-NEXT:    [[SUB3:%.*]] = add nsw i32 [[TMP]], -3
 ; IS________NPM-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[TMP]], 2
 ; IS________NPM-NEXT:    br i1 [[CMP]], label [[OMP_PRECOND_THEN:%.*]], label [[OMP_PRECOND_END:%.*]]
 ; IS________NPM:       omp.precond.then:
 ; IS________NPM-NEXT:    store i32 0, i32* [[DOTOMP_LB]], align 4
 ; IS________NPM-NEXT:    store i32 [[SUB3]], i32* [[DOTOMP_UB]], align 4
 ; IS________NPM-NEXT:    store i32 1, i32* [[DOTOMP_STRIDE]], align 4
 ; IS________NPM-NEXT:    store i32 0, i32* [[DOTOMP_IS_LAST]], align 4
 ; IS________NPM-NEXT:    [[TMP5:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
-; IS________NPM-NEXT:    call void @__kmpc_for_static_init_4(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0:@.*]], i32 [[TMP5]], i32 noundef 34, i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_IS_LAST]], i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_LB]], i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_UB]], i32* noundef nonnull align 4 dereferenceable(4) [[DOTOMP_STRIDE]], i32 noundef 1, i32 noundef 1)
+; IS________NPM-NEXT:    call void @__kmpc_for_static_init_4(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0:@.*]], i32 [[TMP5]], i32 noundef 34, i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_IS_LAST]], i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_LB]], i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_UB]], i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[DOTOMP_STRIDE]], i32 noundef 1, i32 noundef 1)
 ; IS________NPM-NEXT:    [[TMP6:%.*]] = load i32, i32* [[DOTOMP_UB]], align 4
 ; IS________NPM-NEXT:    [[CMP6:%.*]] = icmp sgt i32 [[TMP6]], [[SUB3]]
 ; IS________NPM-NEXT:    br i1 [[CMP6]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
 ; IS________NPM:       cond.true:
 ; IS________NPM-NEXT:    br label [[COND_END:%.*]]
 ; IS________NPM:       cond.false:
 ; IS________NPM-NEXT:    [[TMP7:%.*]] = load i32, i32* [[DOTOMP_UB]], align 4
 ; IS________NPM-NEXT:    br label [[COND_END]]

 ; IS________NPM-NEXT:    br label [[OMP_INNER_FOR_INC]]
 ; IS________NPM:       omp.inner.for.inc:
 ; IS________NPM-NEXT:    [[ADD11]] = add nsw i32 [[DOTOMP_IV_0]], 1
 ; IS________NPM-NEXT:    br label [[OMP_INNER_FOR_COND]]
 ; IS________NPM:       omp.inner.for.end:
 ; IS________NPM-NEXT:    br label [[OMP_LOOP_EXIT:%.*]]
 ; IS________NPM:       omp.loop.exit:
 ; IS________NPM-NEXT:    [[TMP12:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
-; IS________NPM-NEXT:    call void @__kmpc_for_static_fini(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) [[GLOB0]], i32 [[TMP12]])
+; IS________NPM-NEXT:    call void @__kmpc_for_static_fini(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 [[TMP12]])
 ; IS________NPM-NEXT:    br label [[OMP_PRECOND_END]]
 ; IS________NPM:       omp.precond.end:
 ; IS________NPM-NEXT:    ret void
 ;
 entry:
   %q.addr = alloca i64, align 8
   %.omp.lb = alloca i32, align 4
   %.omp.ub = alloca i32, align 4

llvm/test/Transforms/Attributor/IPConstantProp/pthreads.ll

 ; FIXME: nocapture & noalias for %alloc2 in %call3
 
 define dso_local i32 @main() {
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@main() {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    [[ALLOC1:%.*]] = alloca i8, align 8
 ; IS__TUNIT____-NEXT:    [[ALLOC2:%.*]] = alloca i8, align 8
 ; IS__TUNIT____-NEXT:    [[THREAD:%.*]] = alloca i64, align 8
-; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree readnone align 536870912 undef)
-; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nofree nonnull readnone align 8 dereferenceable(8) "no-capture-maybe-returned" undef)
-; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
-; IS__TUNIT____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
+; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree readnone align 536870912 undef)
+; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nofree nonnull readnone align 8 dereferenceable(8) maxobjsize(8) "no-capture-maybe-returned" undef)
+; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) maxobjsize(1) [[ALLOC1]])
+; IS__TUNIT____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[ALLOC2]])
 ; IS__TUNIT____-NEXT:    ret i32 0
 ;
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@main() {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    [[ALLOC1:%.*]] = alloca i8, align 8
 ; IS__CGSCC____-NEXT:    [[ALLOC2:%.*]] = alloca i8, align 8
 ; IS__CGSCC____-NEXT:    [[THREAD:%.*]] = alloca i64, align 8
-; IS__CGSCC____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree noundef readnone align 536870912 null)
-; IS__CGSCC____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(8) bitcast (i8** @GlobalVPtr to i8*))
-; IS__CGSCC____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) [[ALLOC1]])
-; IS__CGSCC____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" [[ALLOC2]])
+; IS__CGSCC____-NEXT:    [[CALL:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @foo, i8* noalias nocapture nofree noundef readnone align 536870912 null)
+; IS__CGSCC____-NEXT:    [[CALL1:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @bar, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(8) maxobjsize(8) bitcast (i8** @GlobalVPtr to i8*))
+; IS__CGSCC____-NEXT:    [[CALL2:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @baz, i8* noalias nocapture nofree noundef nonnull readnone align 8 dereferenceable(1) maxobjsize(1) [[ALLOC1]])
+; IS__CGSCC____-NEXT:    [[CALL3:%.*]] = call i32 @pthread_create(i64* noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[THREAD]], %union.pthread_attr_t* noalias nocapture noundef align 536870912 null, i8* (i8*)* noundef nonnull @buz, i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[ALLOC2]])
 ; IS__CGSCC____-NEXT:    ret i32 0
 ;
 entry:
   %alloc1 = alloca i8, align 8
   %alloc2 = alloca i8, align 8
   %thread = alloca i64, align 8
   %call = call i32 @pthread_create(i64* nonnull %thread, %union.pthread_attr_t* null, i8* (i8*)* nonnull @foo, i8* null)
   %call1 = call i32 @pthread_create(i64* nonnull %thread, %union.pthread_attr_t* null, i8* (i8*)* nonnull @bar, i8* bitcast (i8** @GlobalVPtr to i8*))

 ;
 entry:
   ret i8* %arg
 }
 
 define internal i8* @bar(i8* %arg) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@bar
-; IS__TUNIT____-SAME: (i8* noalias nofree nonnull readnone returned align 8 dereferenceable(8) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
+; IS__TUNIT____-SAME: (i8* noalias nofree nonnull readnone returned align 8 dereferenceable(8) maxobjsize(8) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    ret i8* bitcast (i8** @GlobalVPtr to i8*)
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@bar
-; IS__CGSCC____-SAME: (i8* noalias nofree nonnull readnone returned align 8 dereferenceable(8) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
+; IS__CGSCC____-SAME: (i8* noalias nofree nonnull readnone returned align 8 dereferenceable(8) maxobjsize(8) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    ret i8* bitcast (i8** @GlobalVPtr to i8*)
 ;
 entry:
   ret i8* %arg
 }
 
 define internal i8* @baz(i8* %arg) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@baz
-; IS__TUNIT____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
+; IS__TUNIT____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    ret i8* [[ARG]]
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@baz
-; IS__CGSCC____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
+; IS__CGSCC____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    ret i8* [[ARG]]
 ;
 entry:
   ret i8* %arg
 }
 
 define internal i8* @buz(i8* %arg) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@buz
-; IS__TUNIT____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
+; IS__TUNIT____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    ret i8* [[ARG]]
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@buz
-; IS__CGSCC____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
+; IS__CGSCC____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[ARG:%.*]]) [[ATTR0]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    ret i8* [[ARG]]
 ;
 entry:
   ret i8* %arg
 }
 
 !1 = !{i64 2, i64 3, i1 false}
 !0 = !{!1}

llvm/test/Transforms/Attributor/IPConstantProp/return-argument.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=9 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=9 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 ;; This function returns its second argument on all return statements
 define internal i32* @incdec(i1 %C, i32* %V) {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@incdec
-; IS__TUNIT____-SAME: (i1 [[C:%.*]], i32* noalias nofree noundef nonnull returned align 4 dereferenceable(4) "no-capture-maybe-returned" [[V:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT____-SAME: (i1 [[C:%.*]], i32* noalias nofree noundef nonnull returned align 4 dereferenceable(4) maxobjsize(4) "no-capture-maybe-returned" [[V:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT____-NEXT:    [[X:%.*]] = load i32, i32* [[V]], align 4
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       T:
 ; IS__TUNIT____-NEXT:    [[X1:%.*]] = add i32 [[X]], 1
 ; IS__TUNIT____-NEXT:    store i32 [[X1]], i32* [[V]], align 4
 ; IS__TUNIT____-NEXT:    ret i32* [[V]]
 ; IS__TUNIT____:       F:
 ; IS__TUNIT____-NEXT:    [[X2:%.*]] = sub i32 [[X]], 1
 ; IS__TUNIT____-NEXT:    store i32 [[X2]], i32* [[V]], align 4
 ; IS__TUNIT____-NEXT:    ret i32* [[V]]
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree norecurse nosync nounwind willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@incdec
-; IS__CGSCC____-SAME: (i1 [[C:%.*]], i32* noalias nofree noundef nonnull returned align 4 dereferenceable(4) "no-capture-maybe-returned" [[V:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC____-SAME: (i1 [[C:%.*]], i32* noalias nofree noundef nonnull returned align 4 dereferenceable(4) maxobjsize(4) "no-capture-maybe-returned" [[V:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC____-NEXT:    [[X:%.*]] = load i32, i32* [[V]], align 4
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       T:
 ; IS__CGSCC____-NEXT:    [[X1:%.*]] = add i32 [[X]], 1
 ; IS__CGSCC____-NEXT:    store i32 [[X1]], i32* [[V]], align 4
 ; IS__CGSCC____-NEXT:    ret i32* [[V]]
 ; IS__CGSCC____:       F:
 ; IS__CGSCC____-NEXT:    [[X2:%.*]] = sub i32 [[X]], 1
;
   ret { i32, i32 } %Z
 }
 
 define void @caller(i1 %C) personality i32 (...)* @__gxx_personality_v0 {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@caller
 ; IS__TUNIT____-SAME: (i1 [[C:%.*]]) [[ATTR2:#.*]] personality i32 (...)* @__gxx_personality_v0 {
 ; IS__TUNIT____-NEXT:    [[Q:%.*]] = alloca i32, align 4
-; IS__TUNIT____-NEXT:    [[W:%.*]] = call align 4 i32* @incdec(i1 [[C]], i32* noalias nofree noundef nonnull align 4 dereferenceable(4) "no-capture-maybe-returned" [[Q]]) [[ATTR2]]
+; IS__TUNIT____-NEXT:    [[W:%.*]] = call align 4 i32* @incdec(i1 [[C]], i32* noalias nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) "no-capture-maybe-returned" [[Q]]) [[ATTR2]]
 ; IS__TUNIT____-NEXT:    [[S1:%.*]] = call { i32, i32 } @foo(i32 noundef 1, i32 noundef 2) [[ATTR1]]
 ; IS__TUNIT____-NEXT:    [[X1:%.*]] = extractvalue { i32, i32 } [[S1]], 0
 ; IS__TUNIT____-NEXT:    [[S2:%.*]] = call { i32, i32 } @foo(i32 noundef 3, i32 noundef 4) [[ATTR1]]
 ; IS__TUNIT____-NEXT:    br label [[OK:%.*]]
 ; IS__TUNIT____:       OK:
 ; IS__TUNIT____-NEXT:    [[X2:%.*]] = extractvalue { i32, i32 } [[S2]], 0
 ; IS__TUNIT____-NEXT:    [[Z:%.*]] = add i32 [[X1]], [[X2]]
 ; IS__TUNIT____-NEXT:    store i32 [[Z]], i32* [[W]], align 4
 ; IS__TUNIT____-NEXT:    br label [[RET:%.*]]
 ; IS__TUNIT____:       LPAD:
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       RET:
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@caller
 ; IS__CGSCC____-SAME: (i1 [[C:%.*]]) [[ATTR1]] personality i32 (...)* @__gxx_personality_v0 {
 ; IS__CGSCC____-NEXT:    [[Q:%.*]] = alloca i32, align 4
-; IS__CGSCC____-NEXT:    [[W:%.*]] = call align 4 i32* @incdec(i1 [[C]], i32* noalias nofree noundef nonnull align 4 dereferenceable(4) "no-capture-maybe-returned" [[Q]]) [[ATTR2:#.*]]
+; IS__CGSCC____-NEXT:    [[W:%.*]] = call align 4 i32* @incdec(i1 [[C]], i32* noalias nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) "no-capture-maybe-returned" [[Q]]) [[ATTR2:#.*]]
 ; IS__CGSCC____-NEXT:    [[S1:%.*]] = call { i32, i32 } @foo(i32 noundef 1, i32 noundef 2) [[ATTR3:#.*]]
 ; IS__CGSCC____-NEXT:    [[X1:%.*]] = extractvalue { i32, i32 } [[S1]], 0
 ; IS__CGSCC____-NEXT:    [[S2:%.*]] = call { i32, i32 } @foo(i32 noundef 3, i32 noundef 4) [[ATTR4:#.*]]
 ; IS__CGSCC____-NEXT:    br label [[OK:%.*]]
 ; IS__CGSCC____:       OK:
 ; IS__CGSCC____-NEXT:    [[X2:%.*]] = extractvalue { i32, i32 } [[S2]], 0
 ; IS__CGSCC____-NEXT:    [[Z:%.*]] = add i32 [[X1]], [[X2]]
 ; IS__CGSCC____-NEXT:    store i32 [[Z]], i32* [[W]], align 4

llvm/test/Transforms/Attributor/IPConstantProp/thread_local_acs.ll

 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
 @gtl = dso_local thread_local global i32 0, align 4
 @gsh = dso_local global i32 0, align 4
 
 define internal i32 @callee(i32* %thread_local_ptr, i32* %shared_ptr) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readonly willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@callee
-; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[THREAD_LOCAL_PTR:%.*]], i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[SHARED_PTR:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[THREAD_LOCAL_PTR:%.*]], i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[SHARED_PTR:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    [[TMP:%.*]] = load i32, i32* [[THREAD_LOCAL_PTR]], align 4
 ; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = load i32, i32* @gsh, align 4
 ; IS__TUNIT____-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP]], [[TMP1]]
 ; IS__TUNIT____-NEXT:    ret i32 [[ADD]]
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readonly willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@callee
-; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[THREAD_LOCAL_PTR:%.*]], i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[SHARED_PTR:%.*]]) [[ATTR0:#.*]] {
+; IS__CGSCC____-SAME: (i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[THREAD_LOCAL_PTR:%.*]], i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[SHARED_PTR:%.*]]) [[ATTR0:#.*]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    [[TMP:%.*]] = load i32, i32* [[THREAD_LOCAL_PTR]], align 4
 ; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = load i32, i32* @gsh, align 4
 ; IS__CGSCC____-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP]], [[TMP1]]
 ; IS__CGSCC____-NEXT:    ret i32 [[ADD]]
 ;
 entry:
   %tmp = load i32, i32* %thread_local_ptr, align 4
   %tmp1 = load i32, i32* %shared_ptr, align 4
   %add = add nsw i32 %tmp, %tmp1
   ret i32 %add
 }
 
 define dso_local void @caller() {
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@caller() {
 ; IS__TUNIT____-NEXT:  entry:
-; IS__TUNIT____-NEXT:    call void @broker(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) @gtl, i32 (i32*, i32*)* noundef nonnull @callee, i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) undef)
+; IS__TUNIT____-NEXT:    call void @broker(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) @gtl, i32 (i32*, i32*)* noundef nonnull @callee, i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) maxobjsize(4) undef)
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@caller() {
 ; IS__CGSCC____-NEXT:  entry:
-; IS__CGSCC____-NEXT:    call void @broker(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) @gtl, i32 (i32*, i32*)* noundef nonnull @callee, i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) @gsh)
+; IS__CGSCC____-NEXT:    call void @broker(i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) @gtl, i32 (i32*, i32*)* noundef nonnull @callee, i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) @gsh)
 ; IS__CGSCC____-NEXT:    ret void
 ;
 entry:
   call void @broker(i32* nonnull @gtl, i32 (i32*, i32*)* nonnull @callee, i32* nonnull @gsh)
   ret void
 }
 
 declare !callback !0 dso_local void @broker(i32*, i32 (i32*, i32*)*, i32*)
 
 !1 = !{i64 1, i64 0, i64 2, i1 false}
 !0 = !{!1}

llvm/test/Transforms/Attributor/align.ll

 
 @a1 = common global i8 0, align 8
 @a2 = common global i8 0, align 16
 
 ; Function Attrs: nounwind readnone ssp uwtable
 define internal i8* @f1(i8* readnone %0) local_unnamed_addr #0 {
 ; IS__TUNIT____: Function Attrs: nofree noinline nosync nounwind readnone uwtable willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@f1
-; IS__TUNIT____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr [[ATTR0]] {
+; IS__TUNIT____-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr [[ATTR0]] {
 ; IS__TUNIT____-NEXT:    br label [[TMP3:%.*]]
 ; IS__TUNIT____:       2:
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       3:
 ; IS__TUNIT____-NEXT:    ret i8* [[TMP0]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree noinline nosync nounwind readnone uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@f1
-; IS__CGSCC_OPM-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr [[ATTR2:#.*]] {
+; IS__CGSCC_OPM-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr [[ATTR2:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    br label [[TMP3:%.*]]
 ; IS__CGSCC_OPM:       2:
 ; IS__CGSCC_OPM-NEXT:    unreachable
 ; IS__CGSCC_OPM:       3:
 ; IS__CGSCC_OPM-NEXT:    ret i8* undef
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@f1

 }
 
 ; TEST 7
 ; Better than IR information
 define align 4 i8* @test7() #0 {
 ; IS__TUNIT____: Function Attrs: nofree noinline nosync nounwind readnone uwtable willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@test7
 ; IS__TUNIT____-SAME: () [[ATTR0]] {
-; IS__TUNIT____-NEXT:    [[C:%.*]] = tail call i8* @f1(i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) "no-capture-maybe-returned" @a1) [[ATTR9:#.*]]
+; IS__TUNIT____-NEXT:    [[C:%.*]] = tail call i8* @f1(i8* noalias nofree noundef nonnull readnone align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" @a1) [[ATTR9:#.*]]
 ; IS__TUNIT____-NEXT:    ret i8* [[C]]
 ;
 ; IS__CGSCC____: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@test7
 ; IS__CGSCC____-SAME: () [[ATTR0]] {
 ; IS__CGSCC____-NEXT:    ret i8* @a1
 ;
   %c = tail call i8* @f1(i8* align 8 dereferenceable(1) @a1)
   ret i8* %c
 }
 
 ; TEST 7b
 ; Function Attrs: nounwind readnone ssp uwtable
 define internal i8* @f1b(i8* readnone %0) local_unnamed_addr #0 {
 ; IS__CGSCC_OPM: Function Attrs: nofree noinline nosync nounwind readnone uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@f1b
-; IS__CGSCC_OPM-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr [[ATTR2]] {
+; IS__CGSCC_OPM-SAME: (i8* noalias nofree noundef nonnull readnone returned align 8 dereferenceable(1) maxobjsize(1) "no-capture-maybe-returned" [[TMP0:%.*]]) local_unnamed_addr [[ATTR2]] {
 ; IS__CGSCC_OPM-NEXT:    br label [[TMP3:%.*]]
 ; IS__CGSCC_OPM:       2:
 ; IS__CGSCC_OPM-NEXT:    unreachable
 ; IS__CGSCC_OPM:       3:
 ; IS__CGSCC_OPM-NEXT:    ret i8* undef
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@f1b

llvm/test/Transforms/Attributor/callbacks.ll

 ; IS__TUNIT_OPM-SAME: (i32* align 256 [[A:%.*]]) {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t0_caller
 ; IS__TUNIT_NPM-SAME: (i32* align 256 [[A:%.*]]) {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t0_caller
 ; IS__CGSCC_OPM-SAME: (i32* align 256 [[A:%.*]]) {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t0_caller
 ; IS__CGSCC_NPM-SAME: (i32* align 256 [[A:%.*]]) {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
   %b = alloca i32, align 32
   %c = alloca i32*, align 64
   %ptr = alloca i32, align 128
   %0 = bitcast i32* %b to i8*
   store i32 42, i32* %b, align 4
   store i32* %b, i32** %c, align 8
   call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t0_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t0_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
   ret void
 }
 
 ; Note that the first two arguments are provided by the callback_broker according to the callback in !1 below!
 ; The others are annotated with alignment information, amongst others, or even replaced by the constants passed to the call.
 define internal void @t0_callback_callee(i32* %is_not_null, i32* %ptr, i32* %a, i64 %b, i32** %c) {
 ;
 ; IS________OPM-LABEL: define {{[^@]+}}@t0_callback_callee
-; IS________OPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) {
+; IS________OPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C:%.*]]) {
 ; IS________OPM-NEXT:  entry:
 ; IS________OPM-NEXT:    [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
 ; IS________OPM-NEXT:    store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
 ; IS________OPM-NEXT:    [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
 ; IS________OPM-NEXT:    tail call void @t0_check(i32* align 256 [[A]], i64 noundef 99, i32* [[TMP0]])
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM-LABEL: define {{[^@]+}}@t0_callback_callee
-; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) {
+; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C:%.*]]) {
 ; IS________NPM-NEXT:  entry:
 ; IS________NPM-NEXT:    [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
 ; IS________NPM-NEXT:    store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
 ; IS________NPM-NEXT:    [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
 ; IS________NPM-NEXT:    tail call void @t0_check(i32* align 256 [[A]], i64 noundef 99, i32* [[TMP0]])
 ; IS________NPM-NEXT:    ret void
 ;
 entry:

 ; IS__TUNIT_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t1_caller
 ; IS__TUNIT_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t1_caller
 ; IS__CGSCC_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t1_caller
 ; IS__CGSCC_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
   %b = alloca i32, align 32
   %c = alloca i32*, align 64
   %ptr = alloca i32, align 128
   %0 = bitcast i32* %b to i8*
   store i32 42, i32* %b, align 4
   store i32* %b, i32** %c, align 8
   call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t1_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t1_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
   ret void
 }
 
 ; Note that the first two arguments are provided by the callback_broker according to the callback in !1 below!
 ; The others are annotated with alignment information, amongst others, or even replaced by the constants passed to the call.
 define internal void @t1_callback_callee(i32* %is_not_null, i32* %ptr, i32* %a, i64 %b, i32** %c) {
 ;
 ; IS________OPM: Function Attrs: nosync
 ; IS________OPM-LABEL: define {{[^@]+}}@t1_callback_callee
-; IS________OPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) [[ATTR0:#.*]] {
+; IS________OPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C:%.*]]) [[ATTR0:#.*]] {
 ; IS________OPM-NEXT:  entry:
 ; IS________OPM-NEXT:    [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
 ; IS________OPM-NEXT:    store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
 ; IS________OPM-NEXT:    [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
 ; IS________OPM-NEXT:    tail call void @t1_check(i32* nocapture align 256 [[A]], i64 noundef 99, i32* nocapture [[TMP0]])
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM: Function Attrs: nosync
 ; IS________NPM-LABEL: define {{[^@]+}}@t1_callback_callee
-; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) [[ATTR0:#.*]] {
+; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C:%.*]]) [[ATTR0:#.*]] {
 ; IS________NPM-NEXT:  entry:
 ; IS________NPM-NEXT:    [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
 ; IS________NPM-NEXT:    store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
 ; IS________NPM-NEXT:    [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
 ; IS________NPM-NEXT:    tail call void @t1_check(i32* nocapture align 256 [[A]], i64 noundef 99, i32* nocapture [[TMP0]])
 ; IS________NPM-NEXT:    ret void
 ;
 entry:

 ; IS__TUNIT_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t2_caller
 ; IS__TUNIT_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t2_caller
 ; IS__CGSCC_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t2_caller
 ; IS__CGSCC_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
   %b = alloca i32, align 32
   %c = alloca i32*, align 64
   %ptr = alloca i32, align 128
   %0 = bitcast i32* %b to i8*
   store i32 42, i32* %b, align 4
   store i32* %b, i32** %c, align 8
   call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t2_callback_broker(i32* null, i32* %ptr, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*, i64, i32**)* @t2_callback_callee to void (i32*, i32*, ...)*), i32* %a, i64 99, i32** %c)
   ret void
 }
 
 ; Note that the first two arguments are provided by the callback_broker according to the callback in !1 below!
 ; The others are annotated with alignment information, amongst others, or even replaced by the constants passed to the call.
 ;
 ; FIXME: We should derive noalias for %a and add a "fake use" of %a in all potentially synchronizing calls.
 define internal void @t2_callback_callee(i32* %is_not_null, i32* %ptr, i32* %a, i64 %b, i32** %c) {
 ;
 ; IS________OPM-LABEL: define {{[^@]+}}@t2_callback_callee
-; IS________OPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) {
+; IS________OPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C:%.*]]) {
 ; IS________OPM-NEXT:  entry:
 ; IS________OPM-NEXT:    [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
 ; IS________OPM-NEXT:    store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
 ; IS________OPM-NEXT:    [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
 ; IS________OPM-NEXT:    tail call void @t2_check(i32* nocapture align 256 [[A]], i64 noundef 99, i32* nocapture [[TMP0]])
 ; IS________OPM-NEXT:    ret void
 ;
 ; IS________NPM-LABEL: define {{[^@]+}}@t2_callback_callee
-; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C:%.*]]) {
+; IS________NPM-SAME: (i32* nocapture nonnull writeonly align 4 dereferenceable(4) [[IS_NOT_NULL:%.*]], i32* nocapture nonnull readonly align 8 dereferenceable(4) [[PTR:%.*]], i32* nocapture align 256 [[A:%.*]], i64 [[B:%.*]], i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C:%.*]]) {
 ; IS________NPM-NEXT:  entry:
 ; IS________NPM-NEXT:    [[PTR_VAL:%.*]] = load i32, i32* [[PTR]], align 8
 ; IS________NPM-NEXT:    store i32 [[PTR_VAL]], i32* [[IS_NOT_NULL]], align 4
 ; IS________NPM-NEXT:    [[TMP0:%.*]] = load i32*, i32** [[C]], align 64
 ; IS________NPM-NEXT:    tail call void @t2_check(i32* nocapture align 256 [[A]], i64 noundef 99, i32* nocapture [[TMP0]])
 ; IS________NPM-NEXT:    ret void
 ;
 entry:

 ; IS__TUNIT_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__TUNIT_OPM-NEXT:  entry:
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
+; IS__TUNIT_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@t3_caller
 ; IS__TUNIT_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__TUNIT_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__TUNIT_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__TUNIT_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__TUNIT_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
+; IS__TUNIT_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 undef, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@t3_caller
 ; IS__CGSCC_OPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_OPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_OPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_OPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_OPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_OPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
+; IS__CGSCC_OPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@t3_caller
 ; IS__CGSCC_NPM-SAME: (i32* noalias nocapture align 256 [[A:%.*]]) {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 32
 ; IS__CGSCC_NPM-NEXT:    [[C:%.*]] = alloca i32*, align 64
 ; IS__CGSCC_NPM-NEXT:    [[PTR:%.*]] = alloca i32, align 128
 ; IS__CGSCC_NPM-NEXT:    [[TMP0:%.*]] = bitcast i32* [[B]] to i8*
 ; IS__CGSCC_NPM-NEXT:    store i32 42, i32* [[B]], align 32
 ; IS__CGSCC_NPM-NEXT:    store i32* [[B]], i32** [[C]], align 64
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
-; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
+; IS__CGSCC_NPM-NEXT:    call void (i32*, i32*, void (i32*, i32*, ...)*, ...) @t3_callback_broker(i32* noalias nocapture noundef align 536870912 null, i32* noalias nocapture noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR]], void (i32*, i32*, ...)* nocapture noundef bitcast (void (i32*, i32*, i32*, i64, i32**)* @t3_callback_callee to void (i32*, i32*, ...)*), i32* nocapture align 256 [[A]], i64 noundef 99, i32** noalias nocapture noundef nonnull readonly align 64 dereferenceable(8) maxobjsize(8) [[C]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
   %b = alloca i32, align 32
   %c = alloca i32*, align 64
   %ptr = alloca i32, align 128
   %0 = bitcast i32* %b to i8*
   store i32 42, i32* %b, align 4

llvm/test/Transforms/Attributor/depgraph.ll

 ; GRAPH-NEXT: [AANonNull] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn_ret:checkAndAdvance [checkAndAdvance@-1]} with state nonnull
 ; GRAPH-NEXT:   updates [AANonNull] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_ret: [@-1]} with state nonnull
 ; GRAPH-NEXT:   updates [AANonNull] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_ret: [@-1]} with state nonnull
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANoAlias] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn_ret:checkAndAdvance [checkAndAdvance@-1]} with state may-alias
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AADereferenceable] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn_ret:checkAndAdvance [checkAndAdvance@-1]} with state unknown-dereferenceable
 ; GRAPH-EMPTY:
+; GRAPH-NEXT: [AAMaxObjSize] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn_ret:checkAndAdvance [checkAndAdvance@-1]} with state unknown-maxobjsize
+; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAIsDead] for CtxI '  %2 = load i32, i32* %0, align 4' at position {arg: [@0]} with state assumed-live
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANoUndef] for CtxI '  %2 = load i32, i32* %0, align 4' at position {arg: [@0]} with state may-undef-or-poison
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANonNull] for CtxI '  %2 = load i32, i32* %0, align 4' at position {arg: [@0]} with state nonnull
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANoAlias] for CtxI '  %2 = load i32, i32* %0, align 4' at position {arg: [@0]} with state may-alias
 ; GRAPH-EMPTY:

 ; GRAPH-NEXT:   updates [AAMemoryBehavior] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_arg: [@0]} with state readonly
 ; GRAPH-NEXT:   updates [AAMemoryBehavior] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_arg: [@0]} with state readonly
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANoFree] for CtxI '  %2 = load i32, i32* %0, align 4' at position {arg: [@0]} with state nofree
 ; GRAPH-NEXT:   updates [AANoFree] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_arg: [@0]} with state nofree
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAPrivatizablePtr] for CtxI '  %2 = load i32, i32* %0, align 4' at position {arg: [@0]} with state [no-priv]
 ; GRAPH-EMPTY:
+; GRAPH-NEXT: [AAMaxObjSize] for CtxI '  %2 = load i32, i32* %0, align 4' at position {arg: [@0]} with state unknown-maxobjsize
+; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAIsDead] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_ret: [@-1]} with state assumed-live
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANoUnwind] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs: [@-1]} with state nounwind
 ; GRAPH-NEXT:   updates [AAIsDead] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_ret: [@-1]} with state assumed-live
 ; GRAPH-NEXT:   updates [AAIsDead] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_ret: [@-1]} with state assumed-live
 ; GRAPH-NEXT:   updates [AANoUnwind] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn:checkAndAdvance [checkAndAdvance@-1]} with state nounwind
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAMemoryBehavior] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs: [@-1]} with state readonly

 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAMemoryBehavior] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_arg: [@0]} with state readonly
 ; GRAPH-NEXT:   updates [AAMemoryLocation] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn:checkAndAdvance [checkAndAdvance@-1]} with state memory:argument
 ; GRAPH-NEXT:   updates [AAMemoryLocation] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn:checkAndAdvance [checkAndAdvance@-1]} with state memory:argument
 ; GRAPH-NEXT:   updates [AAMemoryLocation] for CtxI '  %2 = load i32, i32* %0, align 4' at position {fn:checkAndAdvance [checkAndAdvance@-1]} with state memory:argument
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANoFree] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_arg: [@0]} with state nofree
 ; GRAPH-EMPTY:
+; GRAPH-NEXT: [AAMaxObjSize] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs_arg: [@0]} with state unknown-maxobjsize
+; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAValueConstantRange] for CtxI '  %3 = icmp eq i32 %2, 0' at position {flt: [@-1]} with state range(1)<full-set / full-set>
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAValueConstantRange] for CtxI <<null inst>> at position {flt: [@-1]} with state range(32)<[0,1) / [0,1)>
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AAPotentialValues] for CtxI '  %3 = icmp eq i32 %2, 0' at position {flt: [@-1]} with state set-state(< {full-set} >)
 ; GRAPH-EMPTY:
 ; GRAPH-NEXT: [AANoReturn] for CtxI '  %6 = call i32* @checkAndAdvance(i32* %5)' at position {cs: [@-1]} with state may-return
 ; GRAPH-EMPTY:

llvm/test/Transforms/Attributor/internal-noalias.ll

 
 define dso_local i32 @visible_local(i32* %A) #0 {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree noinline nosync nounwind uwtable willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@visible_local
 ; IS__TUNIT____-SAME: (i32* nocapture nofree readonly [[A:%.*]]) [[ATTR1:#.*]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT____-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR3]]
-; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR3]]
+; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR3]]
+; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree readonly align 4 [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR3]]
 ; IS__TUNIT____-NEXT:    [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
 ; IS__TUNIT____-NEXT:    ret i32 [[ADD]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@visible_local
 ; IS__CGSCC_OPM-SAME: (i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__CGSCC_OPM-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR4]]
-; IS__CGSCC_OPM-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR4]]
+; IS__CGSCC_OPM-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR4]]
+; IS__CGSCC_OPM-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR4]]
 ; IS__CGSCC_OPM-NEXT:    [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[ADD]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@visible_local
 ; IS__CGSCC_NPM-SAME: (i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__CGSCC_NPM-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR5]]
-; IS__CGSCC_NPM-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR5]]
+; IS__CGSCC_NPM-NEXT:    [[CALL1:%.*]] = call i32 @noalias_args(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR5]]
+; IS__CGSCC_NPM-NEXT:    [[CALL2:%.*]] = call i32 @noalias_args_argmem(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) [[A]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR5]]
 ; IS__CGSCC_NPM-NEXT:    [[ADD:%.*]] = add nsw i32 [[CALL1]], [[CALL2]]
 ; IS__CGSCC_NPM-NEXT:    ret i32 [[ADD]]
 ;
 entry:
   %B = alloca i32, align 4
   store i32 5, i32* %B, align 4
   %call1 = call i32 @noalias_args(i32* %A, i32* nonnull %B)
   %call2 = call i32 @noalias_args_argmem(i32* %A, i32* nonnull %B)
   %add = add nsw i32 %call1, %call2
   ret i32 %add
 }
 
 define internal i32 @noalias_args_argmem_ro(i32* %A, i32* %B) #1 {
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree noinline nosync nounwind readonly uwtable willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@noalias_args_argmem_ro
-; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) [[ATTR0:#.*]] {
+; IS__TUNIT_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[T0:%.*]] = load i32, i32* [[A]], align 4
 ; IS__TUNIT_OPM-NEXT:    [[T1:%.*]] = load i32, i32* [[B]], align 4
 ; IS__TUNIT_OPM-NEXT:    [[ADD:%.*]] = add nsw i32 [[T0]], [[T1]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[ADD]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree noinline nosync nounwind readonly uwtable willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@noalias_args_argmem_ro
 ; IS__TUNIT_NPM-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) [[ATTR0:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[B_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP1]], i32* [[B_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[A_PRIV:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[A_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[T0:%.*]] = load i32, i32* [[A_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[T1:%.*]] = load i32, i32* [[B_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[ADD:%.*]] = add nsw i32 [[T0]], [[T1]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[ADD]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind readonly uwtable willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@noalias_args_argmem_ro
-; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B:%.*]]) [[ATTR0]] {
+; IS__CGSCC_OPM-SAME: (i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR0]] {
 ; IS__CGSCC_OPM-NEXT:    [[T0:%.*]] = load i32, i32* [[A]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[T1:%.*]] = load i32, i32* [[B]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[ADD:%.*]] = add nsw i32 [[T0]], [[T1]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[ADD]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree noinline norecurse nosync nounwind readnone uwtable willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@noalias_args_argmem_ro
 ; IS__CGSCC_NPM-SAME: (i32 [[TMP0:%.*]], i32 [[TMP1:%.*]]) [[ATTR2:#.*]] {

 }
 
 define i32 @visible_local_2() {
 ; IS__TUNIT_OPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_OPM-LABEL: define {{[^@]+}}@visible_local_2
 ; IS__TUNIT_OPM-SAME: () [[ATTR2:#.*]] {
 ; IS__TUNIT_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT_OPM-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__TUNIT_OPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_ro(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR4:#.*]]
+; IS__TUNIT_OPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_ro(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR4:#.*]]
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[CALL]]
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@visible_local_2
 ; IS__TUNIT_NPM-SAME: () [[ATTR2:#.*]] {
 ; IS__TUNIT_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    store i32 5, i32* [[B]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[B]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[TMP2:%.*]] = load i32, i32* [[B]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_ro(i32 [[TMP1]], i32 [[TMP2]]) [[ATTR4:#.*]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 [[CALL]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@visible_local_2
 ; IS__CGSCC_OPM-SAME: () [[ATTR2:#.*]] {
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__CGSCC_OPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_ro(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[B]]) [[ATTR5:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_ro(i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]], i32* noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR5:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[CALL]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@visible_local_2
 ; IS__CGSCC_NPM-SAME: () [[ATTR3:#.*]] {
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 5, i32* [[B]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[TMP1:%.*]] = load i32, i32* [[B]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[TMP2:%.*]] = load i32, i32* [[B]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_ro(i32 [[TMP1]], i32 [[TMP2]]) [[ATTR6:#.*]]
 ; IS__CGSCC_NPM-NEXT:    ret i32 [[CALL]]
 ;
   %B = alloca i32, align 4
   store i32 5, i32* %B, align 4
   %call = call i32 @noalias_args_argmem_ro(i32* %B, i32* %B)
   ret i32 %call
 }
 
 define internal i32 @noalias_args_argmem_rn(i32* %A, i32* %B) #1 {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree noinline nosync nounwind uwtable willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@noalias_args_argmem_rn
-; IS__TUNIT____-SAME: (i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B:%.*]]) [[ATTR1]] {
+; IS__TUNIT____-SAME: (i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR1]] {
 ; IS__TUNIT____-NEXT:    [[T0:%.*]] = load i32, i32* [[B]], align 4
 ; IS__TUNIT____-NEXT:    store i32 0, i32* [[B]], align 4
 ; IS__TUNIT____-NEXT:    ret i32 [[T0]]
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree noinline norecurse nosync nounwind uwtable willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@noalias_args_argmem_rn
-; IS__CGSCC____-SAME: (i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B:%.*]]) [[ATTR1:#.*]] {
+; IS__CGSCC____-SAME: (i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[B:%.*]]) [[ATTR1:#.*]] {
 ; IS__CGSCC____-NEXT:    [[T0:%.*]] = load i32, i32* [[B]], align 4
 ; IS__CGSCC____-NEXT:    store i32 0, i32* [[B]], align 4
 ; IS__CGSCC____-NEXT:    ret i32 [[T0]]
 ;
   %t0 = load i32, i32* %B, align 4
   store i32 0, i32* %B
   ret i32 %t0
 }
 
 define i32 @visible_local_3() {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@visible_local_3
 ; IS__TUNIT____-SAME: () [[ATTR2:#.*]] {
 ; IS__TUNIT____-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__TUNIT____-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B]]) [[ATTR5:#.*]]
+; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR5:#.*]]
 ; IS__TUNIT____-NEXT:    ret i32 [[CALL]]
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@visible_local_3
 ; IS__CGSCC_OPM-SAME: () [[ATTR2]] {
 ; IS__CGSCC_OPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__CGSCC_OPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B]]) [[ATTR6:#.*]]
+; IS__CGSCC_OPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR6:#.*]]
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[CALL]]
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@visible_local_3
 ; IS__CGSCC_NPM-SAME: () [[ATTR3]] {
 ; IS__CGSCC_NPM-NEXT:    [[B:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    store i32 5, i32* [[B]], align 4
-; IS__CGSCC_NPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) [[B]]) [[ATTR7:#.*]]
+; IS__CGSCC_NPM-NEXT:    [[CALL:%.*]] = call i32 @noalias_args_argmem_rn(i32* noalias nocapture nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[B]]) [[ATTR7:#.*]]
 ; IS__CGSCC_NPM-NEXT:    ret i32 [[CALL]]
 ;
   %B = alloca i32, align 4
   store i32 5, i32* %B, align 4
   %call = call i32 @noalias_args_argmem_rn(i32* %B, i32* %B)
   ret i32 %call
 }
 
 attributes #0 = { noinline nounwind uwtable willreturn }
 attributes #1 = { argmemonly noinline nounwind uwtable willreturn}

llvm/test/Transforms/Attributor/liveness.ll

 ; CHECK-NEXT:    ret void
 ;
   call void %fp(i32* %a, i32* %b, i32* %a, i64 -1, i32** null)
   ret void
 }
 ; FIXME: We have to prevent the propagation of %fp in the new pm CGSCC pass until the CallGraphUpdater can handle the new call edge.
 define internal void @call_via_pointer_with_dead_args_internal_a(i32* %a, i32* %b, void (i32*, i32*, i32*, i64, i32**)* %fp) {
 ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_internal_a
-; NOT_CGSCC_NPM-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
+; NOT_CGSCC_NPM-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
 ; NOT_CGSCC_NPM-NEXT:    call void @called_via_pointer(i32* [[A]], i32* nonnull align 128 dereferenceable(4) [[B]], i32* [[A]], i64 -1, i32** null)
 ; NOT_CGSCC_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_internal_a
-; IS__CGSCC____-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
+; IS__CGSCC____-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
 ; IS__CGSCC____-NEXT:    call void [[FP]](i32* [[A]], i32* nonnull align 128 dereferenceable(4) [[B]], i32* [[A]], i64 -1, i32** null)
 ; IS__CGSCC____-NEXT:    ret void
 ;
   call void %fp(i32* %a, i32* %b, i32* %a, i64 -1, i32** null)
   ret void
 }
 define internal void @call_via_pointer_with_dead_args_internal_b(i32* %a, i32* %b, void (i32*, i32*, i32*, i64, i32**)* %fp) {
 ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_internal_b
-; NOT_CGSCC_NPM-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
+; NOT_CGSCC_NPM-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
 ; NOT_CGSCC_NPM-NEXT:    call void @called_via_pointer_internal_2(i32* [[A]], i32* nonnull align 128 dereferenceable(4) [[B]], i32* [[A]], i64 -1, i32** null)
 ; NOT_CGSCC_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_internal_b
-; IS__CGSCC____-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
+; IS__CGSCC____-SAME: (i32* [[A:%.*]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[B:%.*]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull [[FP:%.*]]) {
 ; IS__CGSCC____-NEXT:    call void [[FP]](i32* [[A]], i32* nonnull align 128 dereferenceable(4) [[B]], i32* [[A]], i64 -1, i32** null)
 ; IS__CGSCC____-NEXT:    ret void
 ;
   call void %fp(i32* %a, i32* %b, i32* %a, i64 -1, i32** null)
   ret void
 }
 define void @call_via_pointer_with_dead_args_caller(i32* %a, i32* %b) {
 ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_caller
 ; NOT_CGSCC_NPM-SAME: (i32* [[A:%.*]], i32* [[B:%.*]]) {
 ; NOT_CGSCC_NPM-NEXT:    [[PTR1:%.*]] = alloca i32, align 128
 ; NOT_CGSCC_NPM-NEXT:    [[PTR2:%.*]] = alloca i32, align 128
 ; NOT_CGSCC_NPM-NEXT:    [[PTR3:%.*]] = alloca i32, align 128
 ; NOT_CGSCC_NPM-NEXT:    [[PTR4:%.*]] = alloca i32, align 128
-; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR1]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer)
-; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR2]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer_internal_1)
-; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args_internal_a(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR3]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer)
-; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args_internal_b(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR4]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer_internal_2)
+; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR1]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer)
+; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR2]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer_internal_1)
+; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args_internal_a(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR3]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer)
+; NOT_CGSCC_NPM-NEXT:    call void @call_via_pointer_with_dead_args_internal_b(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR4]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef @called_via_pointer_internal_2)
 ; NOT_CGSCC_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@call_via_pointer_with_dead_args_caller
 ; IS__CGSCC____-SAME: (i32* [[A:%.*]], i32* [[B:%.*]]) {
 ; IS__CGSCC____-NEXT:    [[PTR1:%.*]] = alloca i32, align 128
 ; IS__CGSCC____-NEXT:    [[PTR2:%.*]] = alloca i32, align 128
 ; IS__CGSCC____-NEXT:    [[PTR3:%.*]] = alloca i32, align 128
 ; IS__CGSCC____-NEXT:    [[PTR4:%.*]] = alloca i32, align 128
-; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR1]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer)
-; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR2]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer_internal_1)
-; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args_internal_a(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR3]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer)
-; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args_internal_b(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) [[PTR4]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer_internal_2)
+; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR1]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer)
+; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args(i32* [[A]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR2]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer_internal_1)
+; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args_internal_a(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR3]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer)
+; IS__CGSCC____-NEXT:    call void @call_via_pointer_with_dead_args_internal_b(i32* [[B]], i32* noundef nonnull align 128 dereferenceable(4) maxobjsize(4) [[PTR4]], void (i32*, i32*, i32*, i64, i32**)* nocapture nofree noundef nonnull @called_via_pointer_internal_2)
 ; IS__CGSCC____-NEXT:    ret void
 ;
   %ptr1 = alloca i32, align 128
   %ptr2 = alloca i32, align 128
   %ptr3 = alloca i32, align 128
   %ptr4 = alloca i32, align 128
   call void @call_via_pointer_with_dead_args(i32* %a, i32* %ptr1, void (i32*, i32*, i32*, i64, i32**)* @called_via_pointer)
   call void @call_via_pointer_with_dead_args(i32* %a, i32* %ptr2, void (i32*, i32*, i32*, i64, i32**)* @called_via_pointer_internal_1)

 
 define void @bad_gep() {
 ; NOT_CGSCC_NPM: Function Attrs: nounwind readnone willreturn
 ; NOT_CGSCC_NPM-LABEL: define {{[^@]+}}@bad_gep
 ; NOT_CGSCC_NPM-SAME: () [[ATTR13:#.*]] {
 ; NOT_CGSCC_NPM-NEXT:  entry:
 ; NOT_CGSCC_NPM-NEXT:    [[N:%.*]] = alloca i8, align 1
 ; NOT_CGSCC_NPM-NEXT:    [[M:%.*]] = alloca i8, align 1
-; NOT_CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) [[N]]) [[ATTR16:#.*]]
+; NOT_CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) maxobjsize(1) [[N]]) [[ATTR16:#.*]]
 ; NOT_CGSCC_NPM-NEXT:    br label [[EXIT:%.*]]
 ; NOT_CGSCC_NPM:       while.body:
 ; NOT_CGSCC_NPM-NEXT:    unreachable
 ; NOT_CGSCC_NPM:       if.then:
 ; NOT_CGSCC_NPM-NEXT:    unreachable
 ; NOT_CGSCC_NPM:       if.end:
 ; NOT_CGSCC_NPM-NEXT:    unreachable
 ; NOT_CGSCC_NPM:       exit:
-; NOT_CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) [[N]]) [[ATTR16]]
+; NOT_CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) maxobjsize(1) [[N]]) [[ATTR16]]
 ; NOT_CGSCC_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@bad_gep
 ; IS__CGSCC____-SAME: () [[ATTR14:#.*]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    [[N:%.*]] = alloca i8, align 1
 ; IS__CGSCC____-NEXT:    [[M:%.*]] = alloca i8, align 1
-; IS__CGSCC____-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) [[N]]) [[ATTR17:#.*]]
+; IS__CGSCC____-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) maxobjsize(1) [[N]]) [[ATTR17:#.*]]
 ; IS__CGSCC____-NEXT:    br label [[EXIT:%.*]]
 ; IS__CGSCC____:       while.body:
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       if.then:
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       if.end:
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       exit:
-; IS__CGSCC____-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) [[N]]) [[ATTR17]]
+; IS__CGSCC____-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1, i8* noalias nocapture noundef nonnull dereferenceable(1) maxobjsize(1) [[N]]) [[ATTR17]]
 ; IS__CGSCC____-NEXT:    ret void
 ;
 entry:
   %n = alloca i8
   %m = alloca i8
   call void @llvm.lifetime.start.p0i8(i64 1, i8* %n)
   br label %exit
 

llvm/test/Transforms/Attributor/memory_locations.ll

;
   call i8* @inaccesible_argmem_only_decl(i8* %arg)
   ret void
 }
 define void @callerB1() {
 ; CHECK: Function Attrs: readnone
 ; CHECK-LABEL: define {{[^@]+}}@callerB1
 ; CHECK-SAME: () [[ATTR2:#.*]] {
 ; CHECK-NEXT:    [[STACK:%.*]] = alloca i8, align 1
-; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @argmem_only(i8* noundef nonnull dereferenceable(1) [[STACK]])
+; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @argmem_only(i8* noundef nonnull dereferenceable(1) maxobjsize(1) [[STACK]])
 ; CHECK-NEXT:    ret void
 ;
   %stack = alloca i8
   call i8* @argmem_only(i8* %stack)
   ret void
 }
 define void @callerB2() {
 ; CHECK: Function Attrs: inaccessiblememonly
 ; CHECK-LABEL: define {{[^@]+}}@callerB2
 ; CHECK-SAME: () [[ATTR0]] {
 ; CHECK-NEXT:    [[STACK:%.*]] = alloca i8, align 1
-; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @inaccesible_argmem_only_decl(i8* noundef nonnull dereferenceable(1) [[STACK]])
+; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @inaccesible_argmem_only_decl(i8* noundef nonnull dereferenceable(1) maxobjsize(1) [[STACK]])
 ; CHECK-NEXT:    ret void
 ;
   %stack = alloca i8
   call i8* @inaccesible_argmem_only_decl(i8* %stack)
   ret void
 }
 define void @callerC1() {
 ; CHECK-LABEL: define {{[^@]+}}@callerC1() {

 ;
   call void @write_global()
   ret void
 }
 define void @writeonly_global_via_arg() {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind willreturn writeonly
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@writeonly_global_via_arg
 ; IS__TUNIT____-SAME: () [[ATTR6]] {
-; IS__TUNIT____-NEXT:    call void @write_global_via_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) @G) [[ATTR6]]
+; IS__TUNIT____-NEXT:    call void @write_global_via_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) @G) [[ATTR6]]
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@writeonly_global_via_arg
 ; IS__CGSCC____-SAME: () [[ATTR6]] {
-; IS__CGSCC____-NEXT:    call void @write_global_via_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) @G) [[ATTR10]]
+; IS__CGSCC____-NEXT:    call void @write_global_via_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) @G) [[ATTR10]]
 ; IS__CGSCC____-NEXT:    ret void
 ;
   call void @write_global_via_arg(i32* @G)
   ret void
 }
 
 define void @writeonly_global_via_arg_internal() {
 ;

 
 define i8 @recursive_not_readnone(i8* %ptr, i1 %c) {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@recursive_not_readnone
 ; IS__TUNIT____-SAME: (i8* nocapture nofree writeonly [[PTR:%.*]], i1 [[C:%.*]]) [[ATTR8:#.*]] {
 ; IS__TUNIT____-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       t:
-; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[ALLOC]], i1 noundef false) [[ATTR10:#.*]]
+; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[ALLOC]], i1 noundef false) [[ATTR10:#.*]]
 ; IS__TUNIT____-NEXT:    [[R:%.*]] = load i8, i8* [[ALLOC]], align 1
 ; IS__TUNIT____-NEXT:    ret i8 [[R]]
 ; IS__TUNIT____:       f:
 ; IS__TUNIT____-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; IS__TUNIT____-NEXT:    ret i8 0
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree nosync nounwind
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@recursive_not_readnone
 ; IS__CGSCC____-SAME: (i8* nocapture nofree writeonly [[PTR:%.*]], i1 [[C:%.*]]) [[ATTR8:#.*]] {
 ; IS__CGSCC____-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       t:
-; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[ALLOC]], i1 noundef false) [[ATTR11:#.*]]
+; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[ALLOC]], i1 noundef false) [[ATTR11:#.*]]
 ; IS__CGSCC____-NEXT:    [[R:%.*]] = load i8, i8* [[ALLOC]], align 1
 ; IS__CGSCC____-NEXT:    ret i8 [[R]]
 ; IS__CGSCC____:       f:
 ; IS__CGSCC____-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; IS__CGSCC____-NEXT:    ret i8 0
 ;
   %alloc = alloca i8
   br i1 %c, label %t, label %f
 t:
   call i8 @recursive_not_readnone(i8* %alloc, i1 false)
   %r = load i8, i8* %alloc
   ret i8 %r
 f:
   store i8 1, i8* %ptr
   ret i8 0
 }
 
 define internal i8 @recursive_not_readnone_internal(i8* %ptr, i1 %c) {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@recursive_not_readnone_internal
 ; IS__TUNIT____-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[PTR:%.*]], i1 [[C:%.*]]) [[ATTR8]] {
 ; IS__TUNIT____-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       t:
-; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[ALLOC]], i1 noundef false) [[ATTR10]]
+; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[ALLOC]], i1 noundef false) [[ATTR10]]
 ; IS__TUNIT____-NEXT:    [[R:%.*]] = load i8, i8* [[ALLOC]], align 1
 ; IS__TUNIT____-NEXT:    ret i8 [[R]]
 ; IS__TUNIT____:       f:
 ; IS__TUNIT____-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; IS__TUNIT____-NEXT:    ret i8 0
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree nosync nounwind
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@recursive_not_readnone_internal
 ; IS__CGSCC____-SAME: (i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[PTR:%.*]], i1 [[C:%.*]]) [[ATTR8]] {
 ; IS__CGSCC____-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       t:
-; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[ALLOC]], i1 noundef false) [[ATTR11]]
+; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[ALLOC]], i1 noundef false) [[ATTR11]]
 ; IS__CGSCC____-NEXT:    [[R:%.*]] = load i8, i8* [[ALLOC]], align 1
 ; IS__CGSCC____-NEXT:    ret i8 [[R]]
 ; IS__CGSCC____:       f:
 ; IS__CGSCC____-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; IS__CGSCC____-NEXT:    ret i8 0
 ;
   %alloc = alloca i8
   br i1 %c, label %t, label %f
 t:
   call i8 @recursive_not_readnone_internal(i8* %alloc, i1 false)
   %r = load i8, i8* %alloc
   ret i8 %r
 f:
   store i8 1, i8* %ptr
   ret i8 0
 }
 
 define i8 @readnone_caller(i1 %c) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@readnone_caller
 ; IS__TUNIT____-SAME: (i1 [[C:%.*]]) [[ATTR9:#.*]] {
 ; IS__TUNIT____-NEXT:    [[A:%.*]] = alloca i8, align 1
-; IS__TUNIT____-NEXT:    [[R:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[A]], i1 [[C]]) [[ATTR10]]
+; IS__TUNIT____-NEXT:    [[R:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[A]], i1 [[C]]) [[ATTR10]]
 ; IS__TUNIT____-NEXT:    ret i8 [[R]]
 ;
 ; IS__CGSCC____: Function Attrs: nofree nosync nounwind readnone
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@readnone_caller
 ; IS__CGSCC____-SAME: (i1 [[C:%.*]]) [[ATTR9:#.*]] {
 ; IS__CGSCC____-NEXT:    [[A:%.*]] = alloca i8, align 1
-; IS__CGSCC____-NEXT:    [[R:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[A]], i1 [[C]]) [[ATTR12:#.*]]
+; IS__CGSCC____-NEXT:    [[R:%.*]] = call i8 @recursive_not_readnone_internal(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[A]], i1 [[C]]) [[ATTR12:#.*]]
 ; IS__CGSCC____-NEXT:    ret i8 [[R]]
 ;
   %a = alloca i8
   %r = call i8 @recursive_not_readnone_internal(i8* %a, i1 %c)
   ret i8 %r
 }
 
 define internal i8 @recursive_not_readnone_internal2(i8* %ptr, i1 %c) {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@recursive_not_readnone_internal2
 ; IS__TUNIT____-SAME: (i8* noalias nocapture nofree nonnull writeonly [[PTR:%.*]], i1 [[C:%.*]]) [[ATTR8]] {
 ; IS__TUNIT____-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       t:
-; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal2(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[ALLOC]], i1 noundef false) [[ATTR10]]
+; IS__TUNIT____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal2(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[ALLOC]], i1 noundef false) [[ATTR10]]
 ; IS__TUNIT____-NEXT:    [[R:%.*]] = load i8, i8* [[ALLOC]], align 1
 ; IS__TUNIT____-NEXT:    ret i8 [[R]]
 ; IS__TUNIT____:       f:
 ; IS__TUNIT____-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; IS__TUNIT____-NEXT:    ret i8 0
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree nosync nounwind
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@recursive_not_readnone_internal2
 ; IS__CGSCC____-SAME: (i8* noalias nocapture nofree nonnull writeonly [[PTR:%.*]], i1 [[C:%.*]]) [[ATTR8]] {
 ; IS__CGSCC____-NEXT:    [[ALLOC:%.*]] = alloca i8, align 1
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       t:
-; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal2(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) [[ALLOC]], i1 noundef false) [[ATTR11]]
+; IS__CGSCC____-NEXT:    [[TMP1:%.*]] = call i8 @recursive_not_readnone_internal2(i8* noalias nocapture nofree noundef nonnull writeonly dereferenceable(1) maxobjsize(1) [[ALLOC]], i1 noundef false) [[ATTR11]]
 ; IS__CGSCC____-NEXT:    [[R:%.*]] = load i8, i8* [[ALLOC]], align 1
 ; IS__CGSCC____-NEXT:    ret i8 [[R]]
 ; IS__CGSCC____:       f:
 ; IS__CGSCC____-NEXT:    store i8 1, i8* [[PTR]], align 1
 ; IS__CGSCC____-NEXT:    ret i8 0
 ;
   %alloc = alloca i8
   br i1 %c, label %t, label %f

llvm/test/Transforms/Attributor/misc.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=4 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 ;
 ; Mostly check we do not crash on these uses
 
 define internal void @internal(void (i8*)* %fp) {
 ;
 ;
 ; CHECK-LABEL: define {{[^@]+}}@internal
 ; CHECK-SAME: (void (i8*)* nonnull [[FP:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
-; CHECK-NEXT:    call void @foo(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A]]) [[ATTR1:#.*]]
+; CHECK-NEXT:    call void @foo(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[A]]) [[ATTR1:#.*]]
 ; CHECK-NEXT:    call void [[FP]](i8* bitcast (void (i32*)* @foo to i8*))
 ; CHECK-NEXT:    call void @callback1(void (i32*)* noundef nonnull @foo)
 ; CHECK-NEXT:    call void @callback2(void (i8*)* noundef bitcast (void (i32*)* @foo to void (i8*)*))
 ; CHECK-NEXT:    call void @callback2(void (i8*)* nonnull [[FP]])
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[A]] to i8*
 ; CHECK-NEXT:    call void [[FP]](i8* [[TMP1]])
 ; CHECK-NEXT:    ret void
 ;

 
 define void @external(void (i8*)* %fp) {
 ;
 ;
 ; CHECK-LABEL: define {{[^@]+}}@external
 ; CHECK-SAME: (void (i8*)* [[FP:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
-; CHECK-NEXT:    call void @foo(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[A]]) [[ATTR1]]
+; CHECK-NEXT:    call void @foo(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[A]]) [[ATTR1]]
 ; CHECK-NEXT:    call void @callback1(void (i32*)* noundef nonnull @foo)
 ; CHECK-NEXT:    call void @callback2(void (i8*)* noundef bitcast (void (i32*)* @foo to void (i8*)*))
 ; CHECK-NEXT:    call void @callback2(void (i8*)* [[FP]])
 ; CHECK-NEXT:    call void [[FP]](i8* bitcast (void (i32*)* @foo to i8*))
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[A]] to i8*
 ; CHECK-NEXT:    call void [[FP]](i8* [[TMP1]])
 ; CHECK-NEXT:    call void @internal(void (i8*)* nonnull [[FP]])
 ; CHECK-NEXT:    ret void

llvm/test/Transforms/Attributor/misc_crash.ll

 ; CHECK-NEXT:    [[PTR:%.*]] = call i32* @func1a() [[ATTR0]]
 ; CHECK-NEXT:    ret i32* [[PTR]]
 ;
   %ptr = call i32* @func1a([1 x i32]* @var1)
   ret i32* %ptr
 }
 
 ; UTC_ARGS: --disable
-; CHECK-LABEL: define internal noundef nonnull align 4 dereferenceable(4) i32* @func1a()
+; CHECK-LABEL: define internal noundef nonnull align 4 dereferenceable(4) maxobjsize(4) i32* @func1a()
 ; CHECK-NEXT: ret i32* getelementptr inbounds ([1 x i32], [1 x i32]* @var1, i32 0, i32 0)
 define internal i32* @func1a([1 x i32]* %arg) {
   %ptr = getelementptr inbounds [1 x i32], [1 x i32]* %arg, i64 0, i64 0
   ret i32* %ptr
 }
 ; UTC_ARGS: --enable
 
 define internal void @func2a(i32* %0) {
 ; CHECK: Function Attrs: nofree nosync nounwind willreturn writeonly
 ; CHECK-LABEL: define {{[^@]+}}@func2a
 ; CHECK-SAME: (i32* nocapture nofree nonnull writeonly align 4 dereferenceable(4) [[TMP0:%.*]]) [[ATTR1:#.*]] {
 ; CHECK-NEXT:    store i32 0, i32* @var2, align 4
 ; CHECK-NEXT:    ret void
 ;
   store i32 0, i32* %0
   ret void
 }
 
 define i32 @func2() {
 ; CHECK-LABEL: define {{[^@]+}}@func2() {
-; CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 (i32*, ...) bitcast (void (i32*)* @func2a to i32 (i32*, ...)*)(i32* noundef nonnull align 4 dereferenceable(4) @var2)
+; CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 (i32*, ...) bitcast (void (i32*)* @func2a to i32 (i32*, ...)*)(i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) @var2)
 ; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* @var2, align 4
 ; CHECK-NEXT:    ret i32 [[TMP2]]
 ;
   %1 = tail call i32 (i32*, ...) bitcast (void (i32*)* @func2a to i32 (i32*, ...)*)(i32* @var2)
   %2 = load i32, i32* @var2
   ret i32 %2
 }
 
 define i32 @func3(i1 %false) {
 ; CHECK-LABEL: define {{[^@]+}}@func3
 ; CHECK-SAME: (i1 [[FALSE:%.*]]) {
-; CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 (i32*, ...) bitcast (void (i32*)* @func2a to i32 (i32*, ...)*)(i32* noundef nonnull align 4 dereferenceable(4) @var2)
+; CHECK-NEXT:    [[TMP1:%.*]] = tail call i32 (i32*, ...) bitcast (void (i32*)* @func2a to i32 (i32*, ...)*)(i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) @var2)
 ; CHECK-NEXT:    br i1 [[FALSE]], label [[USE_BB:%.*]], label [[RET_BB:%.*]]
 ; CHECK:       use_bb:
 ; CHECK-NEXT:    ret i32 [[TMP1]]
 ; CHECK:       ret_bb:
 ; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* @var2, align 4
 ; CHECK-NEXT:    ret i32 [[TMP2]]
 ;
   %1 = tail call i32 (i32*, ...) bitcast (void (i32*)* @func2a to i32 (i32*, ...)*)(i32* @var2)

llvm/test/Transforms/Attributor/noalias.ll

 ; CHECK: Function Attrs: nounwind ssp uwtable
 ; CHECK-LABEL: define {{[^@]+}}@test6
 ; CHECK-SAME: () [[ATTR3:#.*]] {
 ; CHECK-NEXT:    [[X:%.*]] = alloca [2 x i8], align 1
 ; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 0
 ; CHECK-NEXT:    store i8 97, i8* [[ARRAYIDX]], align 1
 ; CHECK-NEXT:    [[ARRAYIDX1:%.*]] = getelementptr inbounds [2 x i8], [2 x i8]* [[X]], i64 0, i64 1
 ; CHECK-NEXT:    store i8 0, i8* [[ARRAYIDX1]], align 1
-; CHECK-NEXT:    [[CALL:%.*]] = call noalias i8* @strdup(i8* nocapture noundef nonnull dereferenceable(2) [[ARRAYIDX]]) [[ATTR2]]
+; CHECK-NEXT:    [[CALL:%.*]] = call noalias i8* @strdup(i8* nocapture noundef nonnull dereferenceable(2) maxobjsize(2) [[ARRAYIDX]]) [[ATTR2]]
 ; CHECK-NEXT:    ret i8* [[CALL]]
 ;
   %x = alloca [2 x i8], align 1
   %arrayidx = getelementptr inbounds [2 x i8], [2 x i8]* %x, i64 0, i64 0
   store i8 97, i8* %arrayidx, align 1
   %arrayidx1 = getelementptr inbounds [2 x i8], [2 x i8]* %x, i64 0, i64 1
   store i8 0, i8* %arrayidx1, align 1
   %call = call noalias i8* @strdup(i8* %arrayidx) nounwind

 ; TEST 12
 ; CallSite Argument
 declare void @use_nocapture(i8* nocapture)
 declare void @use(i8*)
 define void @test12_1() {
 ; CHECK-LABEL: define {{[^@]+}}@test12_1() {
 ; CHECK-NEXT:    [[A:%.*]] = alloca i8, align 4
 ; CHECK-NEXT:    [[B:%.*]] = tail call noalias i8* @malloc(i64 noundef 4)
-; CHECK-NEXT:    tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) [[A]])
-; CHECK-NEXT:    tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) [[A]])
+; CHECK-NEXT:    tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) maxobjsize(1) [[A]])
+; CHECK-NEXT:    tail call void @use_nocapture(i8* noalias nocapture noundef nonnull align 4 dereferenceable(1) maxobjsize(1) [[A]])
 ; CHECK-NEXT:    tail call void @use_nocapture(i8* noalias nocapture [[B]])
 ; CHECK-NEXT:    tail call void @use_nocapture(i8* noalias nocapture [[B]])
 ; CHECK-NEXT:    ret void
 ;
   %A = alloca i8, align 4
   %B = tail call noalias i8* @malloc(i64 4)
   tail call void @use_nocapture(i8* %A)
   tail call void @use_nocapture(i8* %A)

 ; IR referred from musl/src/strtod.c file
 
 %struct._IO_FILE = type { i32, i8*, i8*, i32 (%struct._IO_FILE*)*, i8*, i8*, i8*, i8*, i32 (%struct._IO_FILE*, i8*, i32)*, i32 (%struct._IO_FILE*, i8*, i32)*, i64 (%struct._IO_FILE*, i64, i32)*, i8*, i32, %struct._IO_FILE*, %struct._IO_FILE*, i32, i32, i32, i16, i8, i8, i32, i32, i8*, i64, i8*, i8*, i8*, [4 x i8], i64, i64, %struct._IO_FILE*, %struct._IO_FILE*, %struct.__locale_struct*, [4 x i8] }
 %struct.__locale_struct = type { [6 x %struct.__locale_map*] }
 %struct.__locale_map = type opaque
 
 ; Function Attrs: nounwind optsize
 define internal fastcc double @strtox(i8* %s, i8** %p, i32 %prec) unnamed_addr {
-; CHECK-LABEL: define {{[^@]+}}@strtox
-; CHECK-SAME: (i8* noalias [[S:%.*]]) unnamed_addr {
-; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[F:%.*]] = alloca [[STRUCT__IO_FILE:%.*]], align 8
-; CHECK-NEXT:    [[TMP0:%.*]] = bitcast %struct._IO_FILE* [[F]] to i8*
-; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 144, i8* nocapture noundef nonnull align 8 dereferenceable(240) [[TMP0]]) [[ATTR10:#.*]]
-; CHECK-NEXT:    [[CALL:%.*]] = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull align 8 dereferenceable(240) [[F]], i8* [[S]])
-; CHECK-NEXT:    call void @__shlim(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i64 noundef 0)
-; CHECK-NEXT:    [[CALL1:%.*]] = call double @__floatscan(%struct._IO_FILE* noundef nonnull align 8 dereferenceable(240) [[F]], i32 noundef 1, i32 noundef 1)
-; CHECK-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 144, i8* nocapture noundef nonnull align 8 dereferenceable(240) [[TMP0]])
-; CHECK-NEXT:    ret double [[CALL1]]
-;
 entry:
   %f = alloca %struct._IO_FILE, align 8
   %0 = bitcast %struct._IO_FILE* %f to i8*
   call void @llvm.lifetime.start.p0i8(i64 144, i8* nonnull %0)
   %call = call i32 bitcast (i32 (...)* @sh_fromstring to i32 (%struct._IO_FILE*, i8*)*)(%struct._IO_FILE* nonnull %f, i8* %s)
   call void @__shlim(%struct._IO_FILE* nonnull %f, i64 0)
   %call1 = call double @__floatscan(%struct._IO_FILE* nonnull %f, i32 %prec, i32 1)
   call void @llvm.lifetime.end.p0i8(i64 144, i8* nonnull %0)

llvm/test/Transforms/Attributor/noreturn_async.ll

 
 
 define dso_local void @"?overflow@@YAXXZ_may_throw"()  {
 entry:
 ; CHECK:      Function Attrs: noreturn
 ; CHECK-NOT:  nounwind
 ; CHECK-NEXT: define
 ; CHECK-NEXT:   entry:
-; CHECK-NEXT:   %call3 = call i32 (i8*, ...) @printf(i8* noundef nonnull dereferenceable(18) getelementptr inbounds ([18 x i8], [18 x i8]* @"??_C@_0BC@NKPAGFFJ@Exception?5caught?6?$AA@", i64 0, i64 0))
+; CHECK-NEXT:   %call3 = call i32 (i8*, ...) @printf(i8* noundef nonnull dereferenceable(18) maxobjsize(18) getelementptr inbounds ([18 x i8], [18 x i8]* @"??_C@_0BC@NKPAGFFJ@Exception?5caught?6?$AA@", i64 0, i64 0))
 ; CHECK-NEXT:   call void @"?overflow@@YAXXZ_may_throw"()
 ; CHECK-NEXT:   unreachable
   %call3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @"??_C@_0BC@NKPAGFFJ@Exception?5caught?6?$AA@", i64 0, i64 0))
   call void @"?overflow@@YAXXZ_may_throw"()
   ret void
 }
 
 

llvm/test/Transforms/Attributor/noreturn_sync.ll

 
 
 define dso_local void @"?overflow@@YAXXZ_may_throw"()  {
 entry:
 ; CHECK:      Function Attrs: noreturn
 ; CHECK-NOT:  nounwind
 ; CHECK-NEXT: define
 ; CHECK-NEXT:   entry:
-; CHECK-NEXT:   %call3 = call i32 (i8*, ...) @printf(i8* noundef nonnull dereferenceable(18) getelementptr inbounds ([18 x i8], [18 x i8]* @"??_C@_0BC@NKPAGFFJ@Exception?5caught?6?$AA@", i64 0, i64 0))
+; CHECK-NEXT:   %call3 = call i32 (i8*, ...) @printf(i8* noundef nonnull dereferenceable(18) maxobjsize(18) getelementptr inbounds ([18 x i8], [18 x i8]* @"??_C@_0BC@NKPAGFFJ@Exception?5caught?6?$AA@", i64 0, i64 0))
 ; CHECK-NEXT:   call void @"?overflow@@YAXXZ_may_throw"()
 ; CHECK-NEXT:   unreachable
   %call3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @"??_C@_0BC@NKPAGFFJ@Exception?5caught?6?$AA@", i64 0, i64 0))
   call void @"?overflow@@YAXXZ_may_throw"()
   ret void
 }
 
 

llvm/test/Transforms/Attributor/nosync.ll

 @a = common global i32 0, align 4
 
 ; TEST 18 - negative. Synchronizing intrinsic
 
 define void @i_totally_sync() {
 ; CHECK: Function Attrs: nounwind
 ; CHECK-LABEL: define {{[^@]+}}@i_totally_sync
 ; CHECK-SAME: () [[ATTR14:#.*]] {
-; CHECK-NEXT:    tail call void @llvm.x86.sse2.clflush(i8* noundef nonnull align 4 dereferenceable(4) bitcast (i32* @a to i8*))
+; CHECK-NEXT:    tail call void @llvm.x86.sse2.clflush(i8* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) bitcast (i32* @a to i8*))
 ; CHECK-NEXT:    ret void
 ;
   tail call void @llvm.x86.sse2.clflush(i8* bitcast (i32* @a to i8*))
   ret void
 }
 
 declare float @llvm.cos(float %val) readnone
 

llvm/test/Transforms/Attributor/noundef.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_NPM,NOT_CGSCC_OPM,NOT_TUNIT_NPM,IS__TUNIT____,IS________OPM,IS__TUNIT_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=1 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; RUN: opt -attributor-cgscc -enable-new-pm=0 -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_NPM,IS__CGSCC____,IS________OPM,IS__CGSCC_OPM
 ; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal  -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_TUNIT_NPM,NOT_TUNIT_OPM,NOT_CGSCC_OPM,IS__CGSCC____,IS________NPM,IS__CGSCC_NPM
 
 declare void @unknown()
 
 declare void @bar(i32*)
 
 define void @foo() {
 ; CHECK-LABEL: define {{[^@]+}}@foo() {
 ; CHECK-NEXT:    [[X:%.*]] = alloca i32, align 4
 ; CHECK-NEXT:    call void @unknown()
-; CHECK-NEXT:    call void @bar(i32* noundef nonnull align 4 dereferenceable(4) [[X]])
+; CHECK-NEXT:    call void @bar(i32* noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[X]])
 ; CHECK-NEXT:    ret void
 ;
   %x = alloca i32
   call void @unknown()
   call void @bar(i32* %x)
   ret void
 }
 

llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll

 ; IS__TUNIT____-NEXT:    [[TOBOOL:%.*]] = icmp ne i32* [[N0]], null
 ; IS__TUNIT____-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
 ; IS__TUNIT____:       if.then:
 ; IS__TUNIT____-NEXT:    br label [[RETURN:%.*]]
 ; IS__TUNIT____:       if.end:
 ; IS__TUNIT____-NEXT:    store i32 3, i32* [[R0]], align 4
 ; IS__TUNIT____-NEXT:    store i32 5, i32* [[R1]], align 4
 ; IS__TUNIT____-NEXT:    store i32 1, i32* [[W0]], align 4
-; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32* @internal_ret1_rrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
-; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
-; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
-; IS__TUNIT____-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR2]]
-; IS__TUNIT____-NEXT:    [[CALL4:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR2]]
+; IS__TUNIT____-NEXT:    [[CALL:%.*]] = call i32* @internal_ret1_rrw(i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R0]], i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
+; IS__TUNIT____-NEXT:    [[CALL1:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
+; IS__TUNIT____-NEXT:    [[CALL2:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
+; IS__TUNIT____-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR2]]
+; IS__TUNIT____-NEXT:    [[CALL4:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR2]]
 ; IS__TUNIT____-NEXT:    [[CALL5:%.*]] = call i32* @internal_ret0_nw(i32* nofree [[N0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
 ; IS__TUNIT____-NEXT:    br label [[RETURN]]
 ; IS__TUNIT____:       return:
 ; IS__TUNIT____-NEXT:    [[RETVAL_0:%.*]] = phi i32* [ [[CALL5]], [[IF_END]] ], [ [[N0]], [[IF_THEN]] ]
 ; IS__TUNIT____-NEXT:    ret i32* [[RETVAL_0]]
 ;
 ; IS__CGSCC____: Function Attrs: argmemonly nofree nosync nounwind
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@internal_ret0_nw
 ; IS__CGSCC____-SAME: (i32* nofree returned [[N0:%.*]], i32* nofree [[W0:%.*]]) [[ATTR0]] {
 ; IS__CGSCC____-NEXT:  entry:
 ; IS__CGSCC____-NEXT:    [[R0:%.*]] = alloca i32, align 4
 ; IS__CGSCC____-NEXT:    [[R1:%.*]] = alloca i32, align 4
 ; IS__CGSCC____-NEXT:    [[TOBOOL:%.*]] = icmp ne i32* [[N0]], null
 ; IS__CGSCC____-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
 ; IS__CGSCC____:       if.then:
 ; IS__CGSCC____-NEXT:    br label [[RETURN:%.*]]
 ; IS__CGSCC____:       if.end:
 ; IS__CGSCC____-NEXT:    store i32 3, i32* [[R0]], align 4
 ; IS__CGSCC____-NEXT:    store i32 5, i32* [[R1]], align 4
 ; IS__CGSCC____-NEXT:    store i32 1, i32* [[W0]], align 4
-; IS__CGSCC____-NEXT:    [[CALL:%.*]] = call i32* @internal_ret1_rrw(i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
-; IS__CGSCC____-NEXT:    [[CALL1:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
-; IS__CGSCC____-NEXT:    [[CALL2:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
-; IS__CGSCC____-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR3]]
-; IS__CGSCC____-NEXT:    [[CALL4:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR3]]
+; IS__CGSCC____-NEXT:    [[CALL:%.*]] = call i32* @internal_ret1_rrw(i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R0]], i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
+; IS__CGSCC____-NEXT:    [[CALL1:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
+; IS__CGSCC____-NEXT:    [[CALL2:%.*]] = call i32* @external_ret2_nrw(i32* nofree [[N0]], i32* nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[R1]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
+; IS__CGSCC____-NEXT:    [[CALL3:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[R0]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR3]]
+; IS__CGSCC____-NEXT:    [[CALL4:%.*]] = call i32* @external_sink_ret2_nrw(i32* nofree [[N0]], i32* nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) maxobjsize(4) [[R1]], i32* nofree nonnull writeonly align 4 dereferenceable(4) "no-capture-maybe-returned" [[W0]]) [[ATTR3]]
 ; IS__CGSCC____-NEXT:    [[CALL5:%.*]] = call i32* @internal_ret0_nw(i32* nofree [[N0]], i32* nofree nonnull align 4 dereferenceable(4) [[W0]]) [[ATTR2]]
 ; IS__CGSCC____-NEXT:    br label [[RETURN]]
 ; IS__CGSCC____:       return:
 ; IS__CGSCC____-NEXT:    [[RETVAL_0:%.*]] = phi i32* [ [[CALL5]], [[IF_END]] ], [ [[N0]], [[IF_THEN]] ]
 ; IS__CGSCC____-NEXT:    ret i32* [[RETVAL_0]]
 ;
 entry:
   %r0 = alloca i32, align 4

llvm/test/Transforms/Attributor/readattrs.ll

 ; though the only direct use, in @escape_readnone_ptr/@escape_readonly_ptr,
 ; is marked as readnone/only. However, the functions can write the pointer into
 ; %addr, causing the store to write to %escaped_then_written.
 ;
 define void @unsound_readnone(i8* %ignored, i8* %escaped_then_written) {
 ; CHECK-LABEL: define {{[^@]+}}@unsound_readnone
 ; CHECK-SAME: (i8* nocapture nofree readnone [[IGNORED:%.*]], i8* [[ESCAPED_THEN_WRITTEN:%.*]]) {
 ; CHECK-NEXT:    [[ADDR:%.*]] = alloca i8*, align 8
-; CHECK-NEXT:    call void @escape_readnone_ptr(i8** noundef nonnull align 8 dereferenceable(8) [[ADDR]], i8* noalias readnone [[ESCAPED_THEN_WRITTEN]])
+; CHECK-NEXT:    call void @escape_readnone_ptr(i8** noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[ADDR]], i8* noalias readnone [[ESCAPED_THEN_WRITTEN]])
 ; CHECK-NEXT:    [[ADDR_LD:%.*]] = load i8*, i8** [[ADDR]], align 8
 ; CHECK-NEXT:    store i8 0, i8* [[ADDR_LD]], align 1
 ; CHECK-NEXT:    ret void
 ;
   %addr = alloca i8*
   call void @escape_readnone_ptr(i8** %addr, i8* %escaped_then_written)
   %addr.ld = load i8*, i8** %addr
   store i8 0, i8* %addr.ld
   ret void
 }
 
 define void @unsound_readonly(i8* %ignored, i8* %escaped_then_written) {
 ; CHECK-LABEL: define {{[^@]+}}@unsound_readonly
 ; CHECK-SAME: (i8* nocapture nofree readnone [[IGNORED:%.*]], i8* [[ESCAPED_THEN_WRITTEN:%.*]]) {
 ; CHECK-NEXT:    [[ADDR:%.*]] = alloca i8*, align 8
-; CHECK-NEXT:    call void @escape_readonly_ptr(i8** noundef nonnull align 8 dereferenceable(8) [[ADDR]], i8* readonly [[ESCAPED_THEN_WRITTEN]])
+; CHECK-NEXT:    call void @escape_readonly_ptr(i8** noundef nonnull align 8 dereferenceable(8) maxobjsize(8) [[ADDR]], i8* readonly [[ESCAPED_THEN_WRITTEN]])
 ; CHECK-NEXT:    [[ADDR_LD:%.*]] = load i8*, i8** [[ADDR]], align 8
 ; CHECK-NEXT:    store i8 0, i8* [[ADDR_LD]], align 1
 ; CHECK-NEXT:    ret void
 ;
   %addr = alloca i8*
   call void @escape_readonly_ptr(i8** %addr, i8* %escaped_then_written)
   %addr.ld = load i8*, i8** %addr
   store i8 0, i8* %addr.ld

llvm/test/Transforms/Attributor/undefined_behavior.ll

 ; Cases for single and multiple violation at a callsite
 define void @arg_nonnull_violation3_1(i1 %c) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@arg_nonnull_violation3_1
 ; IS__TUNIT____-SAME: (i1 [[C:%.*]]) [[ATTR0]] {
 ; IS__TUNIT____-NEXT:    [[PTR:%.*]] = alloca i32, align 4
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       t:
-; IS__TUNIT____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) [[ATTR7:#.*]]
-; IS__TUNIT____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
+; IS__TUNIT____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]]) [[ATTR7:#.*]]
+; IS__TUNIT____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       f:
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       ret:
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@arg_nonnull_violation3_1
 ; IS__CGSCC____-SAME: (i1 [[C:%.*]]) [[ATTR0]] {
 ; IS__CGSCC____-NEXT:    [[PTR:%.*]] = alloca i32, align 4
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       t:
-; IS__CGSCC____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) [[ATTR7:#.*]]
-; IS__CGSCC____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
+; IS__CGSCC____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]]) [[ATTR7:#.*]]
+; IS__CGSCC____-NEXT:    call void @arg_nonnull_12(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       f:
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       ret:
 ; IS__CGSCC____-NEXT:    ret void
 ;
   %ptr = alloca i32
   br i1 %c, label %t, label %f

 
 define void @arg_nonnull_violation3_2(i1 %c) {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@arg_nonnull_violation3_2
 ; IS__TUNIT____-SAME: (i1 [[C:%.*]]) [[ATTR0]] {
 ; IS__TUNIT____-NEXT:    [[PTR:%.*]] = alloca i32, align 4
 ; IS__TUNIT____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__TUNIT____:       t:
-; IS__TUNIT____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) [[ATTR7]]
-; IS__TUNIT____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
+; IS__TUNIT____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]]) [[ATTR7]]
+; IS__TUNIT____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       f:
 ; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       ret:
 ; IS__TUNIT____-NEXT:    ret void
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@arg_nonnull_violation3_2
 ; IS__CGSCC____-SAME: (i1 [[C:%.*]]) [[ATTR0]] {
 ; IS__CGSCC____-NEXT:    [[PTR:%.*]] = alloca i32, align 4
 ; IS__CGSCC____-NEXT:    br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
 ; IS__CGSCC____:       t:
-; IS__CGSCC____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]]) [[ATTR7]]
-; IS__CGSCC____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
+; IS__CGSCC____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]]) [[ATTR7]]
+; IS__CGSCC____-NEXT:    call void @arg_nonnull_12_noundef_2(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) maxobjsize(4) [[PTR]], i32* noalias nocapture nofree noundef writeonly align 536870912 null) [[ATTR7]]
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       f:
 ; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       ret:
 ; IS__CGSCC____-NEXT:    ret void
 ;
   %ptr = alloca i32
   br i1 %c, label %t, label %f

llvm/test/Transforms/OpenMP/parallel_deletion.ll

-; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes
 ; RUN: opt -S -attributor -openmpopt  < %s | FileCheck %s
 ; RUN: opt -S -passes='attributor,cgscc(openmpopt)'  < %s | FileCheck %s
 ;
 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
 
 %struct.ident_t = type { i32, i32, i32, i32, i8* }
 
 @.str = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00", align 1

 ;    #pragma omp parallel
 ;      { readnone_willreturn(); }
 ;    #pragma omp parallel
 ;      {}
 ;    }
 ;
 ; We delete all but the first of the parallel regions in this test.
 define void @delete_parallel_0() {
-; CHECK-LABEL: define {{[^@]+}}@delete_parallel_0()
+; CHECK-LABEL: define {{[^@]+}}@delete_parallel_0() {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined.willreturn to void (i32*, i32*, ...)*))
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0:@.*]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined.willreturn to void (i32*, i32*, ...)*))
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn to void (i32*, i32*, ...)*))
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn.0 to void (i32*, i32*, ...)*))
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn.1 to void (i32*, i32*, ...)*))
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined.willreturn.2 to void (i32*, i32*, ...)*))
   ret void
 }
 
 define internal void @.omp_outlined.willreturn(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
+; CHECK: Function Attrs: willreturn
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #0
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR0:#.*]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @unknown() #0
+; CHECK-NEXT:    call void @unknown() [[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void @unknown() willreturn
   ret void
 }
 
 define internal void @.omp_outlined.willreturn.0(i32* noalias %.global_tid., i32* noalias %.bound_tid.) willreturn {
+; CHECK: Function Attrs: readonly willreturn
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.0
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #1
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR1:#.*]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @readonly() #4
+; CHECK-NEXT:    call void @readonly() [[ATTR4:#.*]]
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void @readonly()
   ret void
 }
 
 define internal void @.omp_outlined.willreturn.1(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
+; CHECK: Function Attrs: nosync readnone willreturn
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.1
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #2
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR2:#.*]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @readnone() #0
+; CHECK-NEXT:    call void @readnone() [[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void @readnone() willreturn
   ret void
 }
 
 define internal void @.omp_outlined.willreturn.2(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
+; CHECK: Function Attrs: nofree nosync nounwind readnone willreturn
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.willreturn.2
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #3
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR3:#.*]] {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    ret void
 ;
 entry:
   ret void
 }
 
 ;    void delete_parallel_1(void) {
 ;    #pragma omp parallel
 ;      { unknown(); }
 ;    #pragma omp parallel
 ;      { readonly(); }
 ;    #pragma omp parallel
 ;      { readnone(); }
 ;    #pragma omp parallel
 ;      {}
 ;    }
 ;
 ; We delete only the last parallel regions in this test because the others might not return.
 define void @delete_parallel_1() {
-; CHECK-LABEL: define {{[^@]+}}@delete_parallel_1()
+; CHECK-LABEL: define {{[^@]+}}@delete_parallel_1() {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined. to void (i32*, i32*, ...)*))
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined..0 to void (i32*, i32*, ...)*))
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined..1 to void (i32*, i32*, ...)*))
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined. to void (i32*, i32*, ...)*))
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined..0 to void (i32*, i32*, ...)*))
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 noundef 0, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*)* @.omp_outlined..1 to void (i32*, i32*, ...)*))
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined. to void (i32*, i32*, ...)*))
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..0 to void (i32*, i32*, ...)*))
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..1 to void (i32*, i32*, ...)*))
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 0, void (i32*, i32*, ...)* bitcast (void (i32*, i32*)* @.omp_outlined..2 to void (i32*, i32*, ...)*))
   ret void
 }
 
 define internal void @.omp_outlined.(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined.
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]])
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    call void @unknown()
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void @unknown()
   ret void
 }
 
 define internal void @.omp_outlined..0(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
+; CHECK: Function Attrs: readonly
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..0
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #4
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR4]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    call void @readonly() #4
+; CHECK-NEXT:    call void @readonly() [[ATTR4]]
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void @readonly()
   ret void
 }
 
 define internal void @.omp_outlined..1(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
+; CHECK: Function Attrs: nosync readnone
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..1
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #5
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR5:#.*]] {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    call void @readnone()
 ; CHECK-NEXT:    ret void
 ;
 entry:
   call void @readnone()
   ret void
 }
 
 define internal void @.omp_outlined..2(i32* noalias %.global_tid., i32* noalias %.bound_tid.) {
+; CHECK: Function Attrs: nofree nosync nounwind readnone willreturn
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..2
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) #3
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]]) [[ATTR3]] {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    ret void
 ;
 entry:
   ret void
 }
 
 ;    void delete_parallel_2(void) {

 ;      {
 ;        ++a;
 ;      }
 ;    }
 ;
 ; FIXME: We do not realize that `a` is dead and all accesses to it can be removed
 ;        making the parallel regions readonly and deletable.
 define void @delete_parallel_2() {
-; CHECK-LABEL: define {{[^@]+}}@delete_parallel_2()
+; CHECK-LABEL: define {{[^@]+}}@delete_parallel_2() {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
 ; CHECK-NEXT:    [[TMP:%.*]] = bitcast i32* [[A]] to i8*
-; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 dereferenceable(4) [[TMP]]) #0
+; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 dereferenceable(4) [[TMP]]) [[ATTR0]]
 ; CHECK-NEXT:    store i32 0, i32* [[A]], align 4
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..3 to void (i32*, i32*, ...)*), i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A]])
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..4 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A]])
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..5 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A]])
-; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) @0, i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..6 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A]])
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..3 to void (i32*, i32*, ...)*), i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A]])
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..4 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A]])
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..5 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A]])
+; CHECK-NEXT:    call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* noundef nonnull align 8 dereferenceable(24) maxobjsize(24) [[GLOB0]], i32 noundef 1, void (i32*, i32*, ...)* noundef bitcast (void (i32*, i32*, i32*)* @.omp_outlined..6 to void (i32*, i32*, ...)*), i32* nocapture noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A]])
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i32* [[A]] to i8*
 ; CHECK-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* noundef nonnull [[TMP1]])
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %a = alloca i32, align 4
   %tmp = bitcast i32* %a to i8*
   call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %tmp)
   store i32 0, i32* %a, align 4
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..3 to void (i32*, i32*, ...)*), i32* nonnull %a)
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..4 to void (i32*, i32*, ...)*), i32* nonnull %a)
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..5 to void (i32*, i32*, ...)*), i32* nonnull %a)
   call void (%struct.ident_t*, i32, void (i32*, i32*, ...)*, ...) @__kmpc_fork_call(%struct.ident_t* nonnull @0, i32 1, void (i32*, i32*, ...)* bitcast (void (i32*, i32*, i32*)* @.omp_outlined..6 to void (i32*, i32*, ...)*), i32* nonnull %a)
   %tmp1 = bitcast i32* %a to i8*
   call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %tmp1)
   ret void
 }
 
 define internal void @.omp_outlined..3(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
+; CHECK: Function Attrs: inaccessiblemem_or_argmemonly nofree nosync nounwind
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..3
-; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[A:%.*]]) #6
+; CHECK-SAME: (i32* noalias nocapture nofree readnone [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture nofree noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]]) [[ATTR6:#.*]] {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[CALL:%.*]] = call i32 @omp_get_thread_num() #4
+; CHECK-NEXT:    [[CALL:%.*]] = call i32 @omp_get_thread_num() [[ATTR4]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
 ; CHECK-NEXT:    br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
 ; CHECK:       if.then:
 ; CHECK-NEXT:    [[TMP:%.*]] = load i32, i32* [[A]], align 4
 ; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 [[TMP]], 1
 ; CHECK-NEXT:    store i32 [[INC]], i32* [[A]], align 4
 ; CHECK-NEXT:    br label [[IF_END]]
 ; CHECK:       if.end:
if.then:                                          ; preds = %entry
   br label %if.end
 
 if.end:                                           ; preds = %if.then, %entry
   ret void
 }
 
 define internal void @.omp_outlined..4(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..4
-; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A:%.*]])
+; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
-; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @__kmpc_master(%struct.ident_t* noundef nonnull @0, i32 [[TMP]])
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @__kmpc_master(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0
 ; CHECK-NEXT:    br i1 [[TMP2]], label [[OMP_IF_END:%.*]], label [[OMP_IF_THEN:%.*]]
 ; CHECK:       omp_if.then:
 ; CHECK-NEXT:    [[TMP3:%.*]] = load i32, i32* [[A]], align 4
 ; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 [[TMP3]], 1
 ; CHECK-NEXT:    store i32 [[INC]], i32* [[A]], align 4
-; CHECK-NEXT:    call void @__kmpc_end_master(%struct.ident_t* noundef nonnull @0, i32 [[TMP]])
+; CHECK-NEXT:    call void @__kmpc_end_master(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
 ; CHECK-NEXT:    br label [[OMP_IF_END]]
 ; CHECK:       omp_if.end:
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %tmp = load i32, i32* %.global_tid., align 4
   %tmp1 = call i32 @__kmpc_master(%struct.ident_t* nonnull @0, i32 %tmp)
   %tmp2 = icmp eq i32 %tmp1, 0

 declare i32 @omp_get_thread_num() inaccessiblememonly nofree nosync nounwind readonly
 
 declare i32 @__kmpc_master(%struct.ident_t*, i32)
 
 declare void @__kmpc_end_master(%struct.ident_t*, i32)
 
 define internal void @.omp_outlined..5(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..5
-; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A:%.*]])
+; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]]) {
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[OMP_GLOBAL_THREAD_NUM:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* noundef nonnull @0)
+; CHECK-NEXT:    [[OMP_GLOBAL_THREAD_NUM:%.*]] = call i32 @__kmpc_global_thread_num(%struct.ident_t* noundef nonnull [[GLOB0]])
 ; CHECK-NEXT:    [[TMP:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
-; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @__kmpc_single(%struct.ident_t* noundef nonnull @0, i32 [[TMP]])
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @__kmpc_single(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[TMP1]], 0
 ; CHECK-NEXT:    br i1 [[TMP2]], label [[OMP_IF_END:%.*]], label [[OMP_IF_THEN:%.*]]
 ; CHECK:       omp_if.then:
 ; CHECK-NEXT:    [[TMP3:%.*]] = load i32, i32* [[A]], align 4
 ; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 [[TMP3]], 1
 ; CHECK-NEXT:    store i32 [[INC]], i32* [[A]], align 4
-; CHECK-NEXT:    call void @__kmpc_end_single(%struct.ident_t* noundef nonnull @0, i32 [[TMP]])
+; CHECK-NEXT:    call void @__kmpc_end_single(%struct.ident_t* noundef nonnull [[GLOB0]], i32 [[TMP]])
 ; CHECK-NEXT:    br label [[OMP_IF_END]]
 ; CHECK:       omp_if.end:
-; CHECK-NEXT:    call void @__kmpc_barrier(%struct.ident_t* noundef nonnull @1, i32 [[OMP_GLOBAL_THREAD_NUM]])
+; CHECK-NEXT:    call void @__kmpc_barrier(%struct.ident_t* noundef nonnull [[GLOB1:@.*]], i32 [[OMP_GLOBAL_THREAD_NUM]])
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %omp_global_thread_num = call i32 @__kmpc_global_thread_num(%struct.ident_t* nonnull @0)
   %tmp = load i32, i32* %.global_tid., align 4
   %tmp1 = call i32 @__kmpc_single(%struct.ident_t* nonnull @0, i32 %tmp)
   %tmp2 = icmp eq i32 %tmp1, 0
   br i1 %tmp2, label %omp_if.end, label %omp_if.then
 
 omp_if.then:                                      ; preds = %entry
   %tmp3 = load i32, i32* %a, align 4
   %inc = add nsw i32 %tmp3, 1
   store i32 %inc, i32* %a, align 4
   call void @__kmpc_end_single(%struct.ident_t* nonnull @0, i32 %tmp)
   br label %omp_if.end
 
 omp_if.end:                                       ; preds = %entry, %omp_if.then
   call void @__kmpc_barrier(%struct.ident_t* nonnull @1, i32 %omp_global_thread_num) #6
   ret void
 }
 
 define internal void @.omp_outlined..6(i32* noalias %.global_tid., i32* noalias %.bound_tid., i32* dereferenceable(4) %a) {
 ; CHECK-LABEL: define {{[^@]+}}@.omp_outlined..6
-; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) [[A:%.*]])
+; CHECK-SAME: (i32* noalias nocapture nonnull readonly align 4 dereferenceable(4) [[DOTGLOBAL_TID_:%.*]], i32* noalias nocapture nofree readnone [[DOTBOUND_TID_:%.*]], i32* nocapture noundef nonnull align 4 dereferenceable(4) maxobjsize(4) [[A:%.*]]) {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[A1:%.*]] = alloca i32, align 4
 ; CHECK-NEXT:    [[DOTOMP_REDUCTION_RED_LIST:%.*]] = alloca [1 x i8*], align 8
 ; CHECK-NEXT:    [[TMP:%.*]] = bitcast i32* [[A1]] to i8*
-; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 [[TMP]]) #0
+; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* noundef nonnull align 4 [[TMP]]) [[ATTR0]]
 ; CHECK-NEXT:    store i32 1, i32* [[A1]], align 4
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast [1 x i8*]* [[DOTOMP_REDUCTION_RED_LIST]] to i32**
 ; CHECK-NEXT:    store i32* [[A1]], i32** [[TMP1]], align 8
 ; CHECK-NEXT:    [[TMP2:%.*]] = load i32, i32* [[DOTGLOBAL_TID_]], align 4
 ; CHECK-NEXT:    [[TMP3:%.*]] = bitcast [1 x i8*]* [[DOTOMP_REDUCTION_RED_LIST]] to i8*
-; CHECK-NEXT:    [[TMP4:%.*]] = call i32 @__kmpc_reduce_nowait(%struct.ident_t* noundef nonnull @2, i32 [[TMP2]], i32 noundef 1, i64 noundef 8, i8* noundef nonnull align 8 [[TMP3]], void (i8*, i8*)* noundef nonnull @.omp.reduction.reduction_func, [8 x i32]* noundef nonnull @.gomp_critical_user_.reduction.var)
+; CHECK-NEXT:    [[TMP4:%.*]] = call i32 @__kmpc_reduce_nowait(%struct.ident_t* noundef nonnull [[GLOB2:@.*]], i32 [[TMP2]], i32 noundef 1, i64 noundef 8, i8* noundef nonnull align 8 [[TMP3]], void (i8*, i8*)* noundef nonnull @.omp.reduction.reduction_func, [8 x i32]* noundef nonnull @.gomp_critical_user_.reduction.var)
 ; CHECK-NEXT:    switch i32 [[TMP4]], label [[DOTOMP_REDUCTION_DEFAULT:%.*]] [
 ; CHECK-NEXT:    i32 1, label [[DOTOMP_REDUCTION_CASE1:%.*]]
 ; CHECK-NEXT:    i32 2, label [[DOTOMP_REDUCTION_CASE2:%.*]]
 ; CHECK-NEXT:    ]
 ; CHECK:       .omp.reduction.case1:
 ; CHECK-NEXT:    [[TMP5:%.*]] = load i32, i32* [[A]], align 4
 ; CHECK-NEXT:    [[TMP6:%.*]] = load i32, i32* [[A1]], align 4
 ; CHECK-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP5]], [[TMP6]]
 ; CHECK-NEXT:    store i32 [[ADD]], i32* [[A]], align 4
-; CHECK-NEXT:    call void @__kmpc_end_reduce_nowait(%struct.ident_t* noundef nonnull @2, i32 [[TMP2]], [8 x i32]* noundef nonnull @.gomp_critical_user_.reduction.var)
+; CHECK-NEXT:    call void @__kmpc_end_reduce_nowait(%struct.ident_t* noundef nonnull [[GLOB2]], i32 [[TMP2]], [8 x i32]* noundef nonnull @.gomp_critical_user_.reduction.var)
 ; CHECK-NEXT:    br label [[DOTOMP_REDUCTION_DEFAULT]]
 ; CHECK:       .omp.reduction.case2:
 ; CHECK-NEXT:    [[TMP7:%.*]] = load i32, i32* [[A1]], align 4
 ; CHECK-NEXT:    [[TMP8:%.*]] = atomicrmw add i32* [[A]], i32 [[TMP7]] monotonic
 ; CHECK-NEXT:    br label [[DOTOMP_REDUCTION_DEFAULT]]
 ; CHECK:       .omp.reduction.default:
 ; CHECK-NEXT:    [[TMP9:%.*]] = bitcast i32* [[A1]] to i8*
 ; CHECK-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* noundef nonnull [[TMP9]])

 
 .omp.reduction.default:                           ; preds = %.omp.reduction.case2, %.omp.reduction.case1, %entry
   %tmp9 = bitcast i32* %a1 to i8*
   call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %tmp9)
   ret void
 }
 
 define internal void @.omp.reduction.reduction_func(i8* %arg, i8* %arg1) {
+; CHECK: Function Attrs: nofree nosync nounwind willreturn
 ; CHECK-LABEL: define {{[^@]+}}@.omp.reduction.reduction_func
-; CHECK-SAME: (i8* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[ARG:%.*]], i8* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[ARG1:%.*]]) #{{[0-9]+}}
+; CHECK-SAME: (i8* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[ARG:%.*]], i8* nocapture nofree nonnull readonly align 8 dereferenceable(8) [[ARG1:%.*]]) [[ATTR9:#.*]] {
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP:%.*]] = bitcast i8* [[ARG1]] to i32**
 ; CHECK-NEXT:    [[TMP2:%.*]] = load i32*, i32** [[TMP]], align 8
 ; CHECK-NEXT:    [[TMP3:%.*]] = bitcast i8* [[ARG]] to i32**
 ; CHECK-NEXT:    [[TMP4:%.*]] = load i32*, i32** [[TMP3]], align 8
 ; CHECK-NEXT:    [[TMP5:%.*]] = load i32, i32* [[TMP4]], align 4
 ; CHECK-NEXT:    [[TMP6:%.*]] = load i32, i32* [[TMP2]], align 4
 ; CHECK-NEXT:    [[ADD:%.*]] = add nsw i32 [[TMP5]], [[TMP6]]