[Attributor] Simplify loads

[jdoerfert]

Summary

As a first step to simplify loads we only handle null and undef
underlying objects, as well as alloca instructions that have the load
as a single user. Loads of those values can be replaced by undef.
Proper reasoning is introduced in a follow up patch

[jdoerfert]

Put in a little more to reduce the follow up size

[kuter]

The code for the AAPotentialValues and AAValueSimplify is the same. Maybe we could move this to a separate function with a callback for doing the unions ?

[jdoerfert]

In D103862#2812033, @kuter wrote:

The code for the AAPotentialValues and AAValueSimplify is the same. Maybe we could move this to a separate function with a callback for doing the unions ?

There are more such opportunities. Will modify this code first though.

[jdoerfert]

Introduc a helper

[kuter]

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

4531

I don't understand why this case needs to be handled. I don't see how we would get something different from the getAssumedSimplified. getAssumedUnderlyingObjects just does genericValueTraversal and strips away casts.

[jdoerfert]

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

4531

The problem is that the object might be null but the pointer is not.

p = nullptr; p[(intptr_t)q] = 1;
Uses a nullptr object and q as offset. The simplified pointer is not null but a gep (or q).
In this case we cannot ignore the object. We can only ignore p = nullptr; q = p[10]; q[-10] = 1; because the object and the simplified pointer (which is where the access happens) are both null.

[jdoerfert]

Rebase

[kuter]

I think there was a mistake during rebase or we should abandon https://reviews.llvm.org/D104432

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

4378

Is AAPointerInfo supposed to be here ?

[jdoerfert]

In D103862#2857346, @kuter wrote:

I think there was a mistake during rebase or we should abandon https://reviews.llvm.org/D104432

I smashed the two :(

I guess I have to untangle them again...

[kuter]

Only this patch looks broken.
I think applying the D104432 in reverse should work.

[jdoerfert]

Rebase without AAPointerInfo

[kuter]

LGTM

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

 ///
 /// Examples:
 ///        X + none  => X
 /// not_none + undef => not_none
 ///          V1 + V2 => nullptr
 Optional<Value *>
 combineOptionalValuesInAAValueLatice(const Optional<Value *> &A,
                                      const Optional<Value *> &B, Type *Ty);
+
+/// Return the initial value of \p Obj with type \p Ty if that is a constant.
+Constant *getInitialValueForObj(Value &Obj, Type &Ty);
+
 } // namespace AA
 
 /// The value passed to the line option that defines the maximal initialization
 /// chain length.
 extern unsigned MaxInitializationChainLength;
 
 ///{
 enum class ChangeStatus {
struct AAFunctionReachability
   static const char ID;
 
 private:
   /// Can this function reach a call with unknown calee.
   virtual bool canReachUnknownCallee() const = 0;
 };
 
 /// Run options, used by the pass manager.
 enum AttributorRunOption {
   NONE = 0,
   MODULE = 1 << 0,
   CGSCC = 1 << 1,
   ALL = MODULE | CGSCC
 };
 
 } // end namespace llvm
 
 #endif // LLVM_TRANSFORMS_IPO_ATTRIBUTOR_H

llvm/lib/Transforms/IPO/Attributor.cpp

ChangeStatus llvm::operator&(ChangeStatus L, ChangeStatus R) {
   return L == ChangeStatus::UNCHANGED ? L : R;
 }
 ChangeStatus &llvm::operator&=(ChangeStatus &L, ChangeStatus R) {
   L = L & R;
   return L;
 }
 ///}
 
+Constant *AA::getInitialValueForObj(Value &Obj, Type &Ty) {
+  if (isa<AllocaInst>(Obj))
+    return UndefValue::get(&Ty);
+  auto *GV = dyn_cast<GlobalVariable>(&Obj);
+  if (!GV || !GV->hasLocalLinkage())
+    return nullptr;
+  if (!GV->hasInitializer())
+    return UndefValue::get(&Ty);
+  return dyn_cast_or_null<Constant>(getWithType(*GV->getInitializer(), Ty));
+}
+
 bool AA::isValidInScope(const Value &V, const Function *Scope) {
   if (isa<Constant>(V))
     return true;
   if (auto *I = dyn_cast<Instruction>(&V))
     return I->getFunction() == Scope;
   if (auto *A = dyn_cast<Argument>(&V))
     return A->getParent() == Scope;
   return false;

 Optional<Value *> Attributor::translateArgumentToCallSiteContent(
     Optional<Value *> V, CallBase &CB, const AbstractAttribute &AA,
     bool &UsedAssumedInformation) {
   if (!V.hasValue())
     return V;
   if (*V == nullptr || isa<Constant>(*V))
     return V;
   if (auto *Arg = dyn_cast<Argument>(*V))
+    if (CB.getCalledFunction() == Arg->getParent())
       if (!Arg->hasPointeeInMemoryValueAttr())
         return getAssumedSimplified(
             IRPosition::callsite_argument(CB, Arg->getArgNo()), AA,
             UsedAssumedInformation);
   return nullptr;
 }
 
 Attributor::~Attributor() {
   // The abstract attributes are allocated via the BumpPtrAllocator Allocator,
   // thus we cannot delete them. We can, and want to, destruct them though.
   for (auto &DepAA : DG.SyntheticRoot.Deps) {
     AbstractAttribute *AA = cast<AbstractAttribute>(DepAA.getPointer());

llvm/lib/Transforms/IPO/AttributorAttributes.cpp

 //===- AttributorAttributes.cpp - Attributes for Attributor deduction -----===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // See the Attributor.h file comment and the class descriptions in that file for
 // more information.
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/IR/Constants.h"
 #include "llvm/Transforms/IPO/Attributor.h"
 
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/SCCIterator.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/AssumeBundleQueries.h"
 #include "llvm/Analysis/AssumptionCache.h"
 #include "llvm/Analysis/CaptureTracking.h"
 #include "llvm/Analysis/LazyValueInfo.h"
 #include "llvm/Analysis/MemoryBuiltins.h"
 #include "llvm/Analysis/ScalarEvolution.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/Analysis/ValueTracking.h"
+#include "llvm/IR/Constants.h"
 #include "llvm/IR/IRBuilder.h"
 #include "llvm/IR/Instruction.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/NoFolder.h"
 #include "llvm/Support/Alignment.h"
+#include "llvm/Support/Casting.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Transforms/IPO/ArgumentPromotion.h"
 #include "llvm/Transforms/Utils/Local.h"
 #include <cassert>
 
ChangeStatus manifest(Attributor &A) override {
     return Changed | AAValueSimplify::manifest(A);
   }
 
   /// See AbstractState::indicatePessimisticFixpoint(...).
   ChangeStatus indicatePessimisticFixpoint() override {
     SimplifiedAssociatedValue = &getAssociatedValue();
     return AAValueSimplify::indicatePessimisticFixpoint();
   }
+
+  static bool handleLoad(Attributor &A, const AbstractAttribute &AA,
+                         LoadInst &L, function_ref<bool(Value &)> Union) {
+
+    Value &Ptr = *L.getPointerOperand();
+    SmallVector<Value *, 8> Objects;
+    if (!getAssumedUnderlyingObjects(A, Ptr, Objects, AA, &L))
+      return false;
+
+    for (Value *Obj : Objects) {
+      LLVM_DEBUG(dbgs() << "Visit underlying object " << *Obj << "\n");
+      if (isa<UndefValue>(Obj))
+        continue;
+      if (isa<ConstantPointerNull>(Obj)) {
+        // A null pointer access can be undefined but any offset from null may
+        // be OK. We do not try to optimize the latter.
+        bool UsedAssumedInformation;
+        if (!NullPointerIsDefined(L.getFunction(),
+                                  Ptr.getType()->getPointerAddressSpace())) {
+          const auto &SimplePtr =
+              A.getAssumedSimplified(Ptr, AA, UsedAssumedInformation);
+          if (!SimplePtr.hasValue() || *SimplePtr == Obj)
+            continue;
+        }
+      }
+      // If the object is only loaded from by this one load, we can try to
+      // propagate the initializer.
+      // TODO: This is only to test the load simplification, will be replaced.
+      if (Obj->getNumUses() == 1 && *Obj->user_begin() == &L)
+        if (Value *InitialV = AA::getInitialValueForObj(*Obj, *L.getType()))
+          if (Union(*InitialV))
+            continue;
+
+      return false;
+    }
+    return Union(*UndefValue::get(AA.getAssociatedType()));
+  }
 };
 
 struct AAValueSimplifyArgument final : AAValueSimplifyImpl {
   AAValueSimplifyArgument(const IRPosition &IRP, Attributor &A)
       : AAValueSimplifyImpl(IRP, A) {}
 
   void initialize(Attributor &A) override {
     AAValueSimplifyImpl::initialize(A);
bool checkForNullPtrCompare(Attributor &A, ICmpInst *ICmp,
     if (PtrNonNullAA.isKnownNonNull())
       indicateOptimisticFixpoint();
 
     Changed = Before == SimplifiedAssociatedValue ? ChangeStatus::UNCHANGED
                                                   : ChangeStatus ::CHANGED;
     return true;
   }
 
+  bool updateWithLoad(Attributor &A, LoadInst &L) {
+    auto Union = [&](Value &V) {
+      SimplifiedAssociatedValue = AA::combineOptionalValuesInAAValueLatice(
+          SimplifiedAssociatedValue, &V, L.getType());
+      return SimplifiedAssociatedValue != Optional<Value *>(nullptr);
+    };
+    return handleLoad(A, *this, L, Union);
+  }
+
   /// See AbstractAttribute::updateImpl(...).
   ChangeStatus updateImpl(Attributor &A) override {
     auto Before = SimplifiedAssociatedValue;
 
     ChangeStatus Changed;
     if (checkForNullPtrCompare(A, dyn_cast<ICmpInst>(&getAnchorValue()),
                                Changed))
       return Changed;
 
     auto VisitValueCB = [&](Value &V, const Instruction *CtxI, bool &,
                             bool Stripped) -> bool {
       auto &AA = A.getAAFor<AAValueSimplify>(
           *this, IRPosition::value(V, getCallBaseContext()),
           DepClassTy::REQUIRED);
       if (!Stripped && this == &AA) {
+        if (auto *LI = dyn_cast<LoadInst>(&V))
+          return updateWithLoad(A, *LI);
         // TODO: Look the instruction and check recursively.
 
         LLVM_DEBUG(dbgs() << "[ValueSimplify] Can't be stripped more : " << V
                           << "\n");
         return false;
       }
       return checkAndUpdate(A, *this,
                             IRPosition::value(V, getCallBaseContext()));
if (isa<UndefValue>(&V)) {
       unionAssumedWithUndef();
       indicateOptimisticFixpoint();
       return;
     }
 
     if (isa<BinaryOperator>(&V) || isa<ICmpInst>(&V) || isa<CastInst>(&V))
       return;
 
-    if (isa<SelectInst>(V) || isa<PHINode>(V))
+    if (isa<SelectInst>(V) || isa<PHINode>(V) || isa<LoadInst>(V))
       return;
 
     indicatePessimisticFixpoint();
 
     LLVM_DEBUG(dbgs() << "[AAPotentialValues] We give up: "
                       << getAssociatedValue() << "\n");
   }
 
for (unsigned u = 0, e = PHI->getNumIncomingValues(); u < e; u++) {
         unionAssumedWithUndef();
       else
         unionAssumed(PotentialValuesAA.getAssumed());
     }
     return AssumedBefore == getAssumed() ? ChangeStatus::UNCHANGED
                                          : ChangeStatus::CHANGED;
   }
 
+  ChangeStatus updateWithLoad(Attributor &A, LoadInst &L) {
+    if (!L.getType()->isIntegerTy())
+      return indicatePessimisticFixpoint();
+
+    auto Union = [&](Value &V) {
+      if (isa<UndefValue>(V)) {
+        unionAssumedWithUndef();
+        return true;
+      }
+      if (ConstantInt *CI = dyn_cast<ConstantInt>(&V)) {
+        unionAssumed(CI->getValue());
+        return true;
+      }
+      return false;
+    };
+    auto AssumedBefore = getAssumed();
+
+    if (!AAValueSimplifyImpl::handleLoad(A, *this, L, Union))
+      return indicatePessimisticFixpoint();
+
+    return AssumedBefore == getAssumed() ? ChangeStatus::UNCHANGED
+                                         : ChangeStatus::CHANGED;
+  }
+
   /// See AbstractAttribute::updateImpl(...).
   ChangeStatus updateImpl(Attributor &A) override {
     Value &V = getAssociatedValue();
     Instruction *I = dyn_cast<Instruction>(&V);
 
     if (auto *ICI = dyn_cast<ICmpInst>(I))
       return updateWithICmpInst(A, ICI);
 
     if (auto *SI = dyn_cast<SelectInst>(I))
       return updateWithSelectInst(A, SI);
 
     if (auto *CI = dyn_cast<CastInst>(I))
       return updateWithCastInst(A, CI);
 
     if (auto *BinOp = dyn_cast<BinaryOperator>(I))
       return updateWithBinaryOperator(A, BinOp);
 
     if (auto *PHI = dyn_cast<PHINode>(I))
       return updateWithPHINode(A, PHI);
 
+    if (auto *L = dyn_cast<LoadInst>(I))
+      return updateWithLoad(A, *L);
+
     return indicatePessimisticFixpoint();
   }
 
   /// See AbstractAttribute::trackStatistics()
   void trackStatistics() const override {
     STATS_DECLTRACK_FLOATING_ATTR(potential_values)
   }
 };

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 --check-globals
-; 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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=7 -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=7 -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:[0-9]+]] {
 ; IS__TUNIT_OPM-NEXT:  entry:

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 --check-globals
-; 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 -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
 ; 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 {

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 --check-globals
-; 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 -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
 ; Test that we only promote arguments when the caller/callee have compatible
 ; function attrubtes.
 
 target triple = "x86_64-unknown-linux-gnu"
 
 ; This should promote

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=13 -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=13 -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 nofree noundef nonnull readonly dereferenceable(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
+; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@f() {
+; IS__TUNIT_NPM-NEXT:  entry:
+; IS__TUNIT_NPM-NEXT:    [[A:%.*]] = alloca i32, align 1
+; IS__TUNIT_NPM-NEXT:    [[TMP0:%.*]] = load i32, i32* [[A]], align 1
+; IS__TUNIT_NPM-NEXT:    call void @g(i32 [[TMP0]])
+; IS__TUNIT_NPM-NEXT:    ret void
+;
+; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@f() {
+; IS__CGSCC_NPM-NEXT:  entry:
+; IS__CGSCC_NPM-NEXT:    call void @g(i32 undef)
+; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
   %a = alloca i32, align 1
   call void @g(i32* %a)
   ret void
 }
 
 define internal void @g(i32* %a) {

 ; IS__TUNIT_NPM-NEXT:    store i32 [[TMP0]], i32* [[A_PRIV]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[AA:%.*]] = load i32, i32* [[A_PRIV]], align 1
 ; IS__TUNIT_NPM-NEXT:    call void @z(i32 [[AA]])
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@g
 ; IS__CGSCC_NPM-SAME: (i32 [[TMP0:%.*]]) {
 ; 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:    store i32 undef, i32* [[A_PRIV]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[AA:%.*]] = load i32, i32* [[A_PRIV]], align 4
 ; IS__CGSCC_NPM-NEXT:    call void @z(i32 [[AA]])
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
   %aa = load i32, i32* %a, align 1
   call void @z(i32 %aa)
   ret void
 }

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -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
 
 %struct.ss = type { i32, i64 }
 
 ; Don't drop 'byval' on %X here.
 define internal i32 @f(%struct.ss* byval(%struct.ss) %b, i32* byval(i32) %X, i32 %i) nounwind {
 ;

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=14 -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=14 -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:[0-9]+]] {

llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -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=5 -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
 
 %struct.ss = type { i32, i64 }
 
 define internal void @f(%struct.ss* byval(%struct.ss)  %b, i32* byval(i32) %X) nounwind  {
 ; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@f

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -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=2 -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 -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, i64 }
 
 define internal i32 @f(%struct.ss* byval(%struct.ss)  %b) nounwind  {

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -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=2 -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 -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
 
 %S = type { %S* }
 
 ; Inlining should nuke the invoke (and any inlined calls) here even with
 ; argument promotion running along with it.
 define void @zot() personality i32 (...)* @wibble {

llvm/test/Transforms/Attributor/ArgumentPromotion/pr32917.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -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=5 -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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=7 -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=7 -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
 ; PR 32917
 
 @b = common local_unnamed_addr global i32 0, align 4
 @a = common local_unnamed_addr global i32 0, align 4
 
 ;.

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -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=2 -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 -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() {

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -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
 
 ; PR17906
 ; When we promote two arguments in a single function with different types,
 ; before the fix, we used the same tag for the newly-created two loads.
 ; This testing case makes sure that we correctly transfer the tbaa tags from the
 ; original loads to the newly-created loads when promoting pointer arguments.

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -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-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(i32) %r) {
 ;

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=10 -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=10 -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 constant-propagate byval pointers, since they are not pointers!
 ; PR5038
 %struct.MYstr = type { i8, i32 }
 @mystr = internal global %struct.MYstr zeroinitializer ; <%struct.MYstr*> [#uses=3]
 ;.

llvm/test/Transforms/Attributor/IPConstantProp/PR26044.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=7 -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=7 -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:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 
 define void @fn2(i32* %P, i1 %C) {
 ;
 ; IS__TUNIT_OPM: Function Attrs: argmemonly nofree nosync nounwind

llvm/test/Transforms/Attributor/IPConstantProp/dangling-block-address.ll

 ; IS__CGSCC_NPM-NEXT:    br label [[INDIRECTGOTO:%.*]]
 ; IS__CGSCC_NPM:       lab0:
 ; IS__CGSCC_NPM-NEXT:    [[INDVAR_NEXT:%.*]] = add i32 [[INDVAR:%.*]], 1
 ; IS__CGSCC_NPM-NEXT:    br label [[INDIRECTGOTO]]
 ; IS__CGSCC_NPM:       end:
 ; IS__CGSCC_NPM-NEXT:    ret void
 ; IS__CGSCC_NPM:       indirectgoto:
 ; IS__CGSCC_NPM-NEXT:    [[INDVAR]] = phi i32 [ [[INDVAR_NEXT]], [[LAB0:%.*]] ], [ 0, [[ENTRY:%.*]] ]
-; IS__CGSCC_NPM-NEXT:    [[PC_ADDR_0:%.*]] = getelementptr i32, i32* undef, i32 [[INDVAR]]
-; IS__CGSCC_NPM-NEXT:    [[TMP1_PN:%.*]] = load i32, i32* [[PC_ADDR_0]], align 4
-; IS__CGSCC_NPM-NEXT:    [[INDIRECT_GOTO_DEST_IN:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* @bar.l, i32 0, i32 [[TMP1_PN]]
+; IS__CGSCC_NPM-NEXT:    [[INDIRECT_GOTO_DEST_IN:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* @bar.l, i32 0, i32 undef
 ; IS__CGSCC_NPM-NEXT:    [[INDIRECT_GOTO_DEST:%.*]] = load i8*, i8** [[INDIRECT_GOTO_DEST_IN]], align 8
 ; IS__CGSCC_NPM-NEXT:    indirectbr i8* [[INDIRECT_GOTO_DEST]], [label [[LAB0]], label %end]
 ;
 entry:
   br label %indirectgoto
 
 lab0:                                             ; preds = %indirectgoto
   %indvar.next = add i32 %indvar, 1               ; <i32> [#uses=1]

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

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; 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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=12 -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=12 -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 dso_local i32 @visible(i32* noalias %A, i32* noalias %B) #0 {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree noinline nosync nounwind readonly uwtable willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@visible
 ; IS__TUNIT____-SAME: (i32* noalias nocapture nofree readonly [[A:%.*]], i32* noalias nocapture nofree readonly [[B:%.*]]) #[[ATTR0:[0-9]+]] {
 ; IS__TUNIT____-NEXT:  entry:

llvm/test/Transforms/Attributor/liveness.ll

 ; IS__CGSCC____-NEXT:    br label [[INDIRECTGOTO:%.*]]
 ; IS__CGSCC____:       lab0:
 ; IS__CGSCC____-NEXT:    [[INDVAR_NEXT:%.*]] = add i32 [[INDVAR:%.*]], 1
 ; IS__CGSCC____-NEXT:    br label [[INDIRECTGOTO]]
 ; IS__CGSCC____:       end:
 ; IS__CGSCC____-NEXT:    ret void
 ; IS__CGSCC____:       indirectgoto:
 ; IS__CGSCC____-NEXT:    [[INDVAR]] = phi i32 [ [[INDVAR_NEXT]], [[LAB0:%.*]] ], [ 0, [[ENTRY:%.*]] ]
-; IS__CGSCC____-NEXT:    [[PC_ADDR_0:%.*]] = getelementptr i32, i32* undef, i32 [[INDVAR]]
-; IS__CGSCC____-NEXT:    [[TMP1_PN:%.*]] = load i32, i32* [[PC_ADDR_0]], align 4
-; IS__CGSCC____-NEXT:    [[INDIRECT_GOTO_DEST_IN:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* @dead_with_blockaddress_users.l, i32 0, i32 [[TMP1_PN]]
+; IS__CGSCC____-NEXT:    [[INDIRECT_GOTO_DEST_IN:%.*]] = getelementptr inbounds [2 x i8*], [2 x i8*]* @dead_with_blockaddress_users.l, i32 0, i32 undef
 ; IS__CGSCC____-NEXT:    [[INDIRECT_GOTO_DEST:%.*]] = load i8*, i8** [[INDIRECT_GOTO_DEST_IN]], align 8
 ; IS__CGSCC____-NEXT:    indirectbr i8* [[INDIRECT_GOTO_DEST]], [label [[LAB0]], label %end]
 ;
 entry:
   br label %indirectgoto
 
 lab0:                                             ; preds = %indirectgoto
   %indvar.next = add i32 %indvar, 1               ; <i32> [#uses=1]

llvm/test/Transforms/Attributor/noalias.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -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=5 -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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=7 -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=7 -S < %s | FileCheck %s --check-prefixes=CHECK,NOT_CGSCC_OPM,NOT_CGSCC_NPM,NOT_TUNIT_OPM,IS__TUNIT____,IS________NPM,IS__TUNIT_NPM
 ; TODO: The old pass manager cgscc run is disabled as it causes a crash on windows which is under investigation: http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/25479/steps/test-check-all/logs/FAIL%3A%20LLVM%3A%3Anoalias.ll
 ; 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 1 - negative.
 
 ; void *G;
 ; void *foo(){

llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=10 -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=10 -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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=16 -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=16 -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 is an evolved example to stress test SCC parameter attribute propagation.
 ; The SCC in this test is made up of the following six function, three of which
 ; are internal and three externally visible:
 ;

llvm/test/Transforms/Attributor/undefined_behavior.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
-; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 -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=5 -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 -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -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=2 -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:e-i64:64-f80:128-n8:16:32:64-S128"
 
 ; Test cases specifically designed for the "undefined behavior" abstract function attribute.
 ; We want to verify that whenever undefined behavior is assumed, the code becomes unreachable.
 ; We use FIXME's to indicate problems and missing attributes.
t:
   ret i32 1
 e:
   ret i32 2
 }
 
 ; Branch on undef because of uninitialized value.
 ; FIXME: Currently it doesn't propagate the undef.
 define i32 @cond_br_on_undef_uninit() {
-; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
+; IS__TUNIT____: Function Attrs: nofree noreturn nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@cond_br_on_undef_uninit
-; IS__TUNIT____-SAME: () #[[ATTR0]] {
-; IS__TUNIT____-NEXT:    [[ALLOC:%.*]] = alloca i1, align 1
-; IS__TUNIT____-NEXT:    [[COND:%.*]] = load i1, i1* [[ALLOC]], align 1
-; IS__TUNIT____-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
+; IS__TUNIT____-SAME: () #[[ATTR5]] {
+; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       t:
-; IS__TUNIT____-NEXT:    ret i32 1
+; IS__TUNIT____-NEXT:    unreachable
 ; IS__TUNIT____:       e:
-; IS__TUNIT____-NEXT:    ret i32 2
+; IS__TUNIT____-NEXT:    unreachable
 ;
-; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; IS__CGSCC____: Function Attrs: nofree norecurse noreturn nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@cond_br_on_undef_uninit
-; IS__CGSCC____-SAME: () #[[ATTR0]] {
-; IS__CGSCC____-NEXT:    [[ALLOC:%.*]] = alloca i1, align 1
-; IS__CGSCC____-NEXT:    [[COND:%.*]] = load i1, i1* [[ALLOC]], align 1
-; IS__CGSCC____-NEXT:    br i1 [[COND]], label [[T:%.*]], label [[E:%.*]]
+; IS__CGSCC____-SAME: () #[[ATTR5]] {
+; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       t:
-; IS__CGSCC____-NEXT:    ret i32 1
+; IS__CGSCC____-NEXT:    unreachable
 ; IS__CGSCC____:       e:
-; IS__CGSCC____-NEXT:    ret i32 2
+; IS__CGSCC____-NEXT:    unreachable
 ;
   %alloc = alloca i1
   %cond = load i1, i1* %alloc
   br i1 %cond, label %t, label %e
 t:
   ret i32 1
 e:
   ret i32 2

llvm/test/Transforms/Attributor/value-simplify-pointer-info.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
 ; RUN: opt -attributor -enable-new-pm=0 -attributor-manifest-internal  -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=62 -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=62 -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
 ;
 %struct.S = type { i32, i32, i32, float, float, float }
 
 @globalBytes = global [1024 x i8] zeroinitializer, align 16
 @Gint1 = global i32 zeroinitializer, align 4
 @Gint2 = global i32 zeroinitializer, align 4
 @Gstatic_int1 = internal global i32 zeroinitializer, align 4
 @Gstatic_int2 = internal global i32 zeroinitializer, align 4
+@Gstatic_int3 = internal global i32 zeroinitializer, align 4
 @Gstatic_undef_int1 = internal global i32 undef, align 4
 @Gstatic_undef_int2 = internal global i32 undef, align 4
 @GI1 = internal global i32 undef, align 4
 @GI2 = internal global i32 undef, align 4
 @Gs1 = internal global %struct.S undef, align 4
 @Gs2 = internal global %struct.S zeroinitializer, align 4
 @GBytes = internal global [1024 x i8] zeroinitializer, align 16
 @Flag0 = global i32 0, align 4
 @Flag1 = internal global i32 undef, align 4
 @Flag2 = internal global i32 undef, align 4
 @Flag3 = internal global i32 zeroinitializer, align 4
 
 ;.
 ; CHECK: @[[GLOBALBYTES:[a-zA-Z0-9_$"\\.-]+]] = global [1024 x i8] zeroinitializer, align 16
 ; CHECK: @[[GINT1:[a-zA-Z0-9_$"\\.-]+]] = global i32 0, align 4
 ; CHECK: @[[GINT2:[a-zA-Z0-9_$"\\.-]+]] = global i32 0, align 4
 ; CHECK: @[[GSTATIC_INT1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0, align 4
 ; CHECK: @[[GSTATIC_INT2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0, align 4
+; CHECK: @[[GSTATIC_INT3:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0, align 4
 ; CHECK: @[[GSTATIC_UNDEF_INT1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GSTATIC_UNDEF_INT2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GI1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GI2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GS1:[a-zA-Z0-9_$"\\.-]+]] = internal global [[STRUCT_S:%.*]] undef, align 4
 ; CHECK: @[[GS2:[a-zA-Z0-9_$"\\.-]+]] = internal global [[STRUCT_S:%.*]] zeroinitializer, align 4
 ; CHECK: @[[GBYTES:[a-zA-Z0-9_$"\\.-]+]] = internal global [1024 x i8] zeroinitializer, align 16
 ; CHECK: @[[FLAG0:[a-zA-Z0-9_$"\\.-]+]] = global i32 0, align 4

 ;      int A;
 ;      return A;
 ;    }
 ;
 define i32 @local_alloca_simplifiable_4() {
 ; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@local_alloca_simplifiable_4
 ; IS__TUNIT____-SAME: () #[[ATTR3]] {
-; IS__TUNIT____-NEXT:    [[A:%.*]] = alloca i32, align 4
-; IS__TUNIT____-NEXT:    [[L:%.*]] = load i32, i32* [[A]], align 4
-; IS__TUNIT____-NEXT:    ret i32 [[L]]
+; IS__TUNIT____-NEXT:    ret i32 undef
 ;
 ; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
 ; IS__CGSCC____-LABEL: define {{[^@]+}}@local_alloca_simplifiable_4
 ; IS__CGSCC____-SAME: () #[[ATTR2]] {
-; IS__CGSCC____-NEXT:    [[A:%.*]] = alloca i32, align 4
-; IS__CGSCC____-NEXT:    [[L:%.*]] = load i32, i32* [[A]], align 4
-; IS__CGSCC____-NEXT:    ret i32 [[L]]
+; IS__CGSCC____-NEXT:    ret i32 undef
 ;
   %A = alloca i32, align 4
   %l = load i32, i32* %A, align 4
   ret i32 %l
 }
 
 ;    static int GI1 __attribute__((loader_uninitialized));
 ;    int multi_obj_simplifiable_1(int cnd) {

 ; IS__CGSCC____-SAME: () #[[ATTR6]] {
 ; IS__CGSCC____-NEXT:    [[L:%.*]] = load i32, i32* @Gstatic_undef_int2, align 4
 ; IS__CGSCC____-NEXT:    ret i32 [[L]]
 ;
   %l = load i32, i32* @Gstatic_undef_int2
   ret i32 %l
 }
 
+define i32 @single_read_of_static_global() {
+; IS__TUNIT____: Function Attrs: nofree nosync nounwind readnone willreturn
+; IS__TUNIT____-LABEL: define {{[^@]+}}@single_read_of_static_global
+; IS__TUNIT____-SAME: () #[[ATTR3]] {
+; IS__TUNIT____-NEXT:    ret i32 0
+;
+; IS__CGSCC____: Function Attrs: nofree norecurse nosync nounwind readnone willreturn
+; IS__CGSCC____-LABEL: define {{[^@]+}}@single_read_of_static_global
+; IS__CGSCC____-SAME: () #[[ATTR2]] {
+; IS__CGSCC____-NEXT:    ret i32 0
+;
+  %l = load i32, i32* @Gstatic_int3
+  ret i32 %l
+}
+
 
 !llvm.module.flags = !{!0, !1}
 !llvm.ident = !{!2}
 
 !0 = !{i32 1, !"wchar_size", i32 4}
 !1 = !{i32 7, !"uwtable", i32 1}
 !2 = !{!"clang version 13.0.0"}
 !3 = !{!4, !4, i64 0}