CodeGen: Remove AliasAnalysis from regalloc

[arsenm]

Summary

This was stored in LiveIntervals, but not actually used for anything
related to LiveIntervals. It was only used in one check for if a load
instruction is rematerializable. I also don't think this was entirely
correct, since it was implicitly assuming constant loads are also
dereferenceable.

Remove this and rely only on the invariant+dereferenceable flags in
the memory operand. Set the flag based on the AA query upfront. This
should have the same net benefit, but has the possible disadvantage of
making this AA query nonlazy.

Preserve the behavior of assuming pointsToConstantMemory implying
dereferenceable for now, but maybe this should be changed.

[mtrofin]

llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp

888

I think this isn't needed here.

892

this can be removed, since calculateRegAllocScore now doesn't need the AA

[arsenm]

Remove another leftover use

[MatzeB]

I always found it very unfortunate that we keep IR references around in MIR to do alias analysis queries. This appears to remove a lot of those users (all but the ones in the schedule graph construction?), so I highly welcome the change!

Do you think that there is a risk of target-specific ISel or optimiziation not setting the flags properly in this new scheme? Though even if there is risk, I'd rather push this forward this is too nice a cleanup to block it ;-)

Thanks, LGTM

llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp

1616–1633

Nit: I like initializing things in every branch without a default, so you get warnings if you forget to set the value in one of the branches...

[MatzeB]

Maybe we should leave this diff open for a day or two to wait for extra feedback?

[arsenm]

In D128583#3612915, @MatzeB wrote:

Do you think that there is a risk of target-specific ISel or optimiziation not setting the flags properly in this new scheme? Though even if there is risk, I'd rather push this forward this is too nice a cleanup to block it ;-)

Yes, this could potentially regress rematerializing instructions from target load intrinsics. We would have to pass AA through getTgtMemIntrinsic to allow targets to set the flag themselves.

[MatzeB]

Yes, this could potentially regress rematerializing instructions from target load intrinsics. We would have to pass AA through getTgtMemIntrinsic to allow targets to set the flag themselves.

Ah good point. I think we should at least have an issue filed about that API then.

[efriedma]

The general approach here seems fine. I suspect we end up calling pointsToConstantMemory for most memory operands at some point anyway.

In general pointsToConstantMemory doesn't imply the pointer is dereferenceable. But in practice, the cases where that happens are probably pretty obscure (like out-of-bounds references to constant arrays).

I always found it very unfortunate that we keep IR references around in MIR to do alias analysis queries.

I don't really see a good alternative. Assuming we don't just throw away all alias analysis information, I'm not sure how we'd represent it. You could try to explicitly construct alias sets during isel, I guess.

[qcolombet]

I always found it very unfortunate that we keep IR references around in MIR to do alias analysis queries. This appears to remove a lot of those users (all but the ones in the schedule graph construction?), so I highly welcome the change!

+1

[arsenm]

In D128583#3613323, @efriedma wrote:

The general approach here seems fine. I suspect we end up calling pointsToConstantMemory for most memory operands at some point anyway.

In general pointsToConstantMemory doesn't imply the pointer is dereferenceable. But in practice, the cases where that happens are probably pretty obscure (like out-of-bounds references to constant arrays).

Do you think this is worth fixing in a follow on patch? It seems the API requires two separate queries that mostly do the same thing

[efriedma]

In D128583#3616215, @arsenm wrote:

In general pointsToConstantMemory doesn't imply the pointer is dereferenceable. But in practice, the cases where that happens are probably pretty obscure (like out-of-bounds references to constant arrays).

Do you think this is worth fixing in a follow on patch? It seems the API requires two separate queries that mostly do the same thing

We probably want the existing semantics of pointsToConstantMemory in most places. In particular, consider a variable array index into a global constant; pointsToConstantMemory, but it's not necessarily dereferenceable.

I think we should just add the call to isDereferenceableAndAlignedPointer. (We could come up with a combined API, but I'm not sure it's worth the extra maintenance work...)

[arsenm]

8d0383eb694e13a999c9c95adc4b56771429e551

llvm/include/llvm/CodeGen/GlobalISel/IRTranslator.h

private:
   /// Current target configuration. Controls how the pass handles errors.
   const TargetPassConfig *TPC;
 
   CodeGenOpt::Level OptLevel;
 
   /// Current optimization remark emitter. Used to report failures.
   std::unique_ptr<OptimizationRemarkEmitter> ORE;
 
+  AAResults *AA;
   FunctionLoweringInfo FuncInfo;
 
   // True when either the Target Machine specifies no optimizations or the
   // function has the optnone attribute.
   bool EnableOpts = false;
 
   /// True when the block contains a tail call. This allows the IRTranslator to
   /// stop translating such blocks early.

llvm/include/llvm/CodeGen/LiveIntervals.h

 class raw_ostream;
 class TargetInstrInfo;
 class VirtRegMap;
 
   class LiveIntervals : public MachineFunctionPass {
     MachineFunction* MF;
     MachineRegisterInfo* MRI;
     const TargetRegisterInfo* TRI;
-    const TargetInstrInfo* TII;
-    AAResults *AA;
+    const TargetInstrInfo *TII;
     SlotIndexes* Indexes;
     MachineDominatorTree *DomTree = nullptr;
     LiveIntervalCalc *LICalc = nullptr;
 
     /// Special pool allocator for VNInfo's (LiveInterval val#).
     VNInfo::Allocator VNInfoAllocator;
 
     /// Live interval pointers for all the virtual registers.
LLVM_ATTRIBUTE_UNUSED void pruneValue(LiveInterval &, SlotIndex,
       llvm_unreachable(
           "Use pruneValue on the main LiveRange and on each subrange");
     }
 
     SlotIndexes *getSlotIndexes() const {
       return Indexes;
     }
 
-    AAResults *getAliasAnalysis() const {
-      return AA;
-    }
-
     /// Returns true if the specified machine instr has been removed or was
     /// never entered in the map.
     bool isNotInMIMap(const MachineInstr &Instr) const {
       return !Indexes->hasIndex(Instr);
     }
 
     /// Returns the base index of the given instruction.
     SlotIndex getInstructionIndex(const MachineInstr &Instr) const {

llvm/include/llvm/CodeGen/LiveRangeEdit.h

 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/SlotIndexes.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include <cassert>
 
 namespace llvm {
 
-class AAResults;
 class LiveIntervals;
 class MachineInstr;
 class MachineOperand;
 class TargetInstrInfo;
 class TargetRegisterInfo;
 class VirtRegMap;
 class VirtRegAuxInfo;
 
private:
   /// tii.isTriviallyReMaterializable().
   SmallPtrSet<const VNInfo *, 4> Remattable;
 
   /// Rematted - Values that were actually rematted, and so need to have their
   /// live range trimmed or entirely removed.
   SmallPtrSet<const VNInfo *, 4> Rematted;
 
   /// scanRemattable - Identify the Parent values that may rematerialize.
-  void scanRemattable(AAResults *aa);
+  void scanRemattable();
 
   /// foldAsLoad - If LI has a single use and a single def that can be folded as
   /// a load, eliminate the register by folding the def into the use.
   bool foldAsLoad(LiveInterval *LI, SmallVectorImpl<MachineInstr *> &Dead);
 
   using ToShrinkSet = SetVector<LiveInterval *, SmallVector<LiveInterval *, 8>,
                                 SmallPtrSet<LiveInterval *, 8>>;
 
   /// Helper for eliminateDeadDefs.
-  void eliminateDeadDef(MachineInstr *MI, ToShrinkSet &ToShrink,
-                        AAResults *AA);
+  void eliminateDeadDef(MachineInstr *MI, ToShrinkSet &ToShrink);
 
   /// MachineRegisterInfo callback to notify when new virtual
   /// registers are created.
   void MRI_NoteNewVirtualRegister(Register VReg) override;
 
   /// Check if MachineOperand \p MO is a last use/kill either in the
   /// main live range of \p LI or in one of the matching subregister ranges.
   bool useIsKill(const LiveInterval &LI, const MachineOperand &MO) const;
LiveInterval &createEmptyInterval() {
     return createEmptyIntervalFrom(getReg(), true);
   }
 
   Register create() { return createFrom(getReg()); }
 
   /// anyRematerializable - Return true if any parent values may be
   /// rematerializable.
   /// This function must be called before any rematerialization is attempted.
-  bool anyRematerializable(AAResults *);
+  bool anyRematerializable();
 
   /// checkRematerializable - Manually add VNI to the list of rematerializable
   /// values if DefMI may be rematerializable.
-  bool checkRematerializable(VNInfo *VNI, const MachineInstr *DefMI,
-                             AAResults *);
+  bool checkRematerializable(VNInfo *VNI, const MachineInstr *DefMI);
 
   /// Remat - Information needed to rematerialize at a specific location.
   struct Remat {
     const VNInfo *const ParentVNI;  // parent_'s value at the remat location.
     MachineInstr *OrigMI = nullptr; // Instruction defining OrigVNI. It contains
                                     // the real expr for remat.
 
     explicit Remat(const VNInfo *ParentVNI) : ParentVNI(ParentVNI) {}
public:
 
   /// eliminateDeadDefs - Try to delete machine instructions that are now dead
   /// (allDefsAreDead returns true). This may cause live intervals to be trimmed
   /// and further dead efs to be eliminated.
   /// RegsBeingSpilled lists registers currently being spilled by the register
   /// allocator.  These registers should not be split into new intervals
   /// as currently those new intervals are not guaranteed to spill.
   void eliminateDeadDefs(SmallVectorImpl<MachineInstr *> &Dead,
-                         ArrayRef<Register> RegsBeingSpilled = None,
-                         AAResults *AA = nullptr);
+                         ArrayRef<Register> RegsBeingSpilled = None);
 
   /// calculateRegClassAndHint - Recompute register class and hint for each new
   /// register.
   void calculateRegClassAndHint(MachineFunction &, VirtRegAuxInfo &);
 };
 
 } // end namespace llvm
 
 #endif // LLVM_CODEGEN_LIVERANGEEDIT_H

llvm/include/llvm/CodeGen/MachineInstr.h

 
   /// Return true if this load instruction never traps and points to a memory
   /// location whose value doesn't change during the execution of this function.
   ///
   /// Examples include loading a value from the constant pool or from the
   /// argument area of a function (if it does not change).  If the instruction
   /// does multiple loads, this returns true only if all of the loads are
   /// dereferenceable and invariant.
-  bool isDereferenceableInvariantLoad(AAResults *AA) const;
+  bool isDereferenceableInvariantLoad() const;
 
   /// If the specified instruction is a PHI that always merges together the
   /// same virtual register, return the register, otherwise return 0.
   unsigned isConstantValuePHI() const;
 
   /// Return true if this instruction has side effects that are not modeled
   /// by mayLoad / mayStore, etc.
   /// For all instructions, the property is encoded in MCInstrDesc::Flags

llvm/include/llvm/CodeGen/SelectionDAG.h

#endif
   /// stack arguments from being clobbered.
   SDValue getStackArgumentTokenFactor(SDValue Chain);
 
   SDValue getMemcpy(SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src,
                     SDValue Size, Align Alignment, bool isVol,
                     bool AlwaysInline, bool isTailCall,
                     MachinePointerInfo DstPtrInfo,
                     MachinePointerInfo SrcPtrInfo,
-                    const AAMDNodes &AAInfo = AAMDNodes());
+                    const AAMDNodes &AAInfo = AAMDNodes(),
+                    AAResults *AA = nullptr);
 
   SDValue getMemmove(SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src,
                      SDValue Size, Align Alignment, bool isVol, bool isTailCall,
                      MachinePointerInfo DstPtrInfo,
                      MachinePointerInfo SrcPtrInfo,
-                     const AAMDNodes &AAInfo = AAMDNodes());
+                     const AAMDNodes &AAInfo = AAMDNodes(),
+                     AAResults *AA = nullptr);
 
   SDValue getMemset(SDValue Chain, const SDLoc &dl, SDValue Dst, SDValue Src,
                     SDValue Size, Align Alignment, bool isVol,
                     bool AlwaysInline, bool isTailCall,
                     MachinePointerInfo DstPtrInfo,
                     const AAMDNodes &AAInfo = AAMDNodes());
 
   SDValue getAtomicMemcpy(SDValue Chain, const SDLoc &dl, SDValue Dst,

llvm/include/llvm/CodeGen/TargetInstrInfo.h

const TargetRegisterClass *getRegClass(const MCInstrDesc &MCID, unsigned OpNum,
                                          const TargetRegisterInfo *TRI,
                                          const MachineFunction &MF) const;
 
   /// Return true if the instruction is trivially rematerializable, meaning it
   /// has no side effects and requires no operands that aren't always available.
   /// This means the only allowed uses are constants and unallocatable physical
   /// registers so that the instructions result is independent of the place
   /// in the function.
-  bool isTriviallyReMaterializable(const MachineInstr &MI,
-                                   AAResults *AA = nullptr) const {
+  bool isTriviallyReMaterializable(const MachineInstr &MI) const {
     return MI.getOpcode() == TargetOpcode::IMPLICIT_DEF ||
            (MI.getDesc().isRematerializable() &&
-            (isReallyTriviallyReMaterializable(MI, AA) ||
-             isReallyTriviallyReMaterializableGeneric(MI, AA)));
+            (isReallyTriviallyReMaterializable(MI) ||
+             isReallyTriviallyReMaterializableGeneric(MI)));
   }
 
   /// Given \p MO is a PhysReg use return if it can be ignored for the purpose
   /// of instruction rematerialization or sinking.
   virtual bool isIgnorableUse(const MachineOperand &MO) const {
     return false;
   }
 
 protected:
   /// For instructions with opcodes for which the M_REMATERIALIZABLE flag is
   /// set, this hook lets the target specify whether the instruction is actually
   /// trivially rematerializable, taking into consideration its operands. This
   /// predicate must return false if the instruction has any side effects other
   /// than producing a value, or if it requres any address registers that are
   /// not always available.
   /// Requirements must be check as stated in isTriviallyReMaterializable() .
-  virtual bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                                 AAResults *AA) const {
+  virtual bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const {
     return false;
   }
 
   /// This method commutes the operands of the given machine instruction MI.
   /// The operands to be commuted are specified by their indices OpIdx1 and
   /// OpIdx2.
   ///
   /// If a target has any instructions that are commutable but require
static bool fixCommutedOpIndices(unsigned &ResultIdx1, unsigned &ResultIdx2,
                                    unsigned CommutableOpIdx1,
                                    unsigned CommutableOpIdx2);
 
 private:
   /// For instructions with opcodes for which the M_REMATERIALIZABLE flag is
   /// set and the target hook isReallyTriviallyReMaterializable returns false,
   /// this function does target-independent tests to determine if the
   /// instruction is really trivially rematerializable.
-  bool isReallyTriviallyReMaterializableGeneric(const MachineInstr &MI,
-                                                AAResults *AA) const;
+  bool isReallyTriviallyReMaterializableGeneric(const MachineInstr &MI) const;
 
 public:
   /// These methods return the opcode of the frame setup/destroy instructions
   /// if they exist (-1 otherwise).  Some targets use pseudo instructions in
   /// order to abstract away the difference between operating with a frame
   /// pointer and operating without, through the use of these two instructions.
   ///
   unsigned getCallFrameSetupOpcode() const { return CallFrameSetupOpcode; }

llvm/lib/CodeGen/CalcSpillWeights.cpp

while (MI->isFullCopy()) {
       VNI = SrcQ.valueIn();
       assert(VNI && "Copy from non-existing value");
       if (VNI->isPHIDef())
         return false;
       MI = LIS.getInstructionFromIndex(VNI->def);
       assert(MI && "Dead valno in interval");
     }
 
-    if (!TII.isTriviallyReMaterializable(*MI, LIS.getAliasAnalysis()))
+    if (!TII.isTriviallyReMaterializable(*MI))
       return false;
   }
   return true;
 }
 
 bool VirtRegAuxInfo::isLiveAtStatepointVarArg(LiveInterval &LI) {
   return any_of(VRM.getRegInfo().reg_operands(LI.reg()),
                 [](MachineOperand &MO) {

llvm/lib/CodeGen/EarlyIfConversion.cpp

if (!TDef || !FDef)
     return false;
 
   // If there are side-effects, all bets are off.
   if (TDef->hasUnmodeledSideEffects())
     return false;
 
   // If the instruction could modify memory, or there may be some intervening
   // store between the two, we can't consider them to be equal.
-  if (TDef->mayLoadOrStore() && !TDef->isDereferenceableInvariantLoad(nullptr))
+  if (TDef->mayLoadOrStore() && !TDef->isDereferenceableInvariantLoad())
     return false;
 
   // We also can't guarantee that they are the same if, for example, the
   // instructions are both a copy from a physical reg, because some other
   // instruction may have modified the value in that reg between the two
   // defining insts.
   if (any_of(TDef->uses(), [](const MachineOperand &MO) {
         return MO.isReg() && MO.getReg().isPhysical();

llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp

bool CombinerHelper::matchEqualDefs(const MachineOperand &MOP1,
   // %x2 = G_LOAD %addr (load N from @somewhere)
   // ...
   // %or = G_OR %x1, %x2
   //
   // It's possible that @foo will modify whatever lives at the address we're
   // loading from. To be safe, let's just assume that all loads and stores
   // are different (unless we have something which is guaranteed to not
   // change.)
-  if (I1->mayLoadOrStore() && !I1->isDereferenceableInvariantLoad(nullptr))
+  if (I1->mayLoadOrStore() && !I1->isDereferenceableInvariantLoad())
     return false;
 
   // If both instructions are loads or stores, they are equal only if both
   // are dereferenceable invariant loads with the same number of bits.
   if (I1->mayLoadOrStore() && I2->mayLoadOrStore()) {
     GLoadStore *LS1 = dyn_cast<GLoadStore>(I1);
     GLoadStore *LS2 = dyn_cast<GLoadStore>(I2);
     if (!LS1 || !LS2)
       return false;
 
-    if (!I2->isDereferenceableInvariantLoad(nullptr) ||
+    if (!I2->isDereferenceableInvariantLoad() ||
         (LS1->getMemSizeInBits() != LS2->getMemSizeInBits()))
       return false;
   }
 
   // Check for physical registers on the instructions first to avoid cases
   // like this:
   //
   // %a = COPY $physreg

llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp

 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/GlobalISel/IRTranslator.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/ScopeExit.h"
 #include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/BranchProbabilityInfo.h"
 #include "llvm/Analysis/OptimizationRemarkEmitter.h"
 #include "llvm/Analysis/ValueTracking.h"
 #include "llvm/CodeGen/Analysis.h"
 #include "llvm/CodeGen/GlobalISel/CSEInfo.h"
 #include "llvm/CodeGen/GlobalISel/CSEMIRBuilder.h"
 #include "llvm/CodeGen/GlobalISel/CallLowering.h"
 #include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"

 } // namespace
 #endif // ifndef NDEBUG
 
 
 void IRTranslator::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<StackProtector>();
   AU.addRequired<TargetPassConfig>();
   AU.addRequired<GISelCSEAnalysisWrapperPass>();
-  if (OptLevel != CodeGenOpt::None)
+  if (OptLevel != CodeGenOpt::None) {
     AU.addRequired<BranchProbabilityInfoWrapperPass>();
+    AU.addRequired<AAResultsWrapperPass>();
+  }
   AU.addRequired<TargetLibraryInfoWrapperPass>();
   AU.addPreserved<TargetLibraryInfoWrapperPass>();
   getSelectionDAGFallbackAnalysisUsage(AU);
   MachineFunctionPass::getAnalysisUsage(AU);
 }
 
 IRTranslator::ValueToVRegInfo::VRegListT &
 IRTranslator::allocateVRegs(const Value &Val) {
if (auto Arg = dyn_cast<Argument>(V))
     return Arg->hasSwiftErrorAttr();
   if (auto AI = dyn_cast<AllocaInst>(V))
     return AI->isSwiftError();
   return false;
 }
 
 bool IRTranslator::translateLoad(const User &U, MachineIRBuilder &MIRBuilder) {
   const LoadInst &LI = cast<LoadInst>(U);
-  if (DL->getTypeStoreSize(LI.getType()) == 0)
+
+  unsigned StoreSize = DL->getTypeStoreSize(LI.getType());
+  if (StoreSize == 0)
     return true;
 
   ArrayRef<Register> Regs = getOrCreateVRegs(LI);
   ArrayRef<uint64_t> Offsets = *VMap.getOffsets(LI);
   Register Base = getOrCreateVReg(*LI.getPointerOperand());
+  AAMDNodes AAInfo = LI.getAAMetadata();
 
-  Type *OffsetIRTy = DL->getIntPtrType(LI.getPointerOperandType());
+  const Value *Ptr = LI.getPointerOperand();
+  Type *OffsetIRTy = DL->getIntPtrType(Ptr->getType());
   LLT OffsetTy = getLLTForType(*OffsetIRTy, *DL);
 
-  if (CLI->supportSwiftError() && isSwiftError(LI.getPointerOperand())) {
+  if (CLI->supportSwiftError() && isSwiftError(Ptr)) {
     assert(Regs.size() == 1 && "swifterror should be single pointer");
-    Register VReg = SwiftError.getOrCreateVRegUseAt(&LI, &MIRBuilder.getMBB(),
-                                                    LI.getPointerOperand());
+    Register VReg =
+        SwiftError.getOrCreateVRegUseAt(&LI, &MIRBuilder.getMBB(), Ptr);
     MIRBuilder.buildCopy(Regs[0], VReg);
     return true;
   }
 
   auto &TLI = *MF->getSubtarget().getTargetLowering();
   MachineMemOperand::Flags Flags = TLI.getLoadMemOperandFlags(LI, *DL);
+  if (AA && !(Flags & MachineMemOperand::MOInvariant)) {
+    if (AA->pointsToConstantMemory(
+            MemoryLocation(Ptr, LocationSize::precise(StoreSize), AAInfo))) {
+      Flags |= MachineMemOperand::MOInvariant;
+
+      // FIXME: pointsToConstantMemory probably does not imply dereferenceable,
+      // but the previous usage implied it did. Probably should check
+      // isDereferenceableAndAlignedPointer.
+      Flags |= MachineMemOperand::MODereferenceable;
+    }
+  }
 
   const MDNode *Ranges =
       Regs.size() == 1 ? LI.getMetadata(LLVMContext::MD_range) : nullptr;
   for (unsigned i = 0; i < Regs.size(); ++i) {
     Register Addr;
     MIRBuilder.materializePtrAdd(Addr, Base, OffsetTy, Offsets[i] / 8);
 
     MachinePointerInfo Ptr(LI.getPointerOperand(), Offsets[i] / 8);
     Align BaseAlign = getMemOpAlign(LI);
     auto MMO = MF->getMachineMemOperand(
         Ptr, Flags, MRI->getType(Regs[i]),
-        commonAlignment(BaseAlign, Offsets[i] / 8), LI.getAAMetadata(), Ranges,
+        commonAlignment(BaseAlign, Offsets[i] / 8), AAInfo, Ranges,
         LI.getSyncScopeID(), LI.getOrdering());
     MIRBuilder.buildLoad(Regs[i], Addr, *MMO);
   }
 
   return true;
 }
 
 bool IRTranslator::translateStore(const User &U, MachineIRBuilder &MIRBuilder) {
bool IRTranslator::translateGetElementPtr(const User &U,
 
   MIRBuilder.buildCopy(getOrCreateVReg(U), BaseReg);
   return true;
 }
 
 bool IRTranslator::translateMemFunc(const CallInst &CI,
                                     MachineIRBuilder &MIRBuilder,
                                     unsigned Opcode) {
-
+  const Value *SrcPtr = CI.getArgOperand(1);
   // If the source is undef, then just emit a nop.
-  if (isa<UndefValue>(CI.getArgOperand(1)))
+  if (isa<UndefValue>(SrcPtr))
     return true;
 
   SmallVector<Register, 3> SrcRegs;
 
   unsigned MinPtrSize = UINT_MAX;
   for (auto AI = CI.arg_begin(), AE = CI.arg_end(); std::next(AI) != AE; ++AI) {
     Register SrcReg = getOrCreateVReg(**AI);
     LLT SrcTy = MRI->getType(SrcReg);
bool IRTranslator::translateMemFunc(const CallInst &CI,
   for (Register SrcReg : SrcRegs)
     ICall.addUse(SrcReg);
 
   Align DstAlign;
   Align SrcAlign;
   unsigned IsVol =
       cast<ConstantInt>(CI.getArgOperand(CI.arg_size() - 1))->getZExtValue();
 
+  ConstantInt *CopySize = nullptr;
+
   if (auto *MCI = dyn_cast<MemCpyInst>(&CI)) {
     DstAlign = MCI->getDestAlign().valueOrOne();
     SrcAlign = MCI->getSourceAlign().valueOrOne();
+    CopySize = dyn_cast<ConstantInt>(MCI->getArgOperand(2));
   } else if (auto *MCI = dyn_cast<MemCpyInlineInst>(&CI)) {
     DstAlign = MCI->getDestAlign().valueOrOne();
     SrcAlign = MCI->getSourceAlign().valueOrOne();
+    CopySize = dyn_cast<ConstantInt>(MCI->getArgOperand(2));
   } else if (auto *MMI = dyn_cast<MemMoveInst>(&CI)) {
     DstAlign = MMI->getDestAlign().valueOrOne();
     SrcAlign = MMI->getSourceAlign().valueOrOne();
+    CopySize = dyn_cast<ConstantInt>(MMI->getArgOperand(2));
   } else {
     auto *MSI = cast<MemSetInst>(&CI);
     DstAlign = MSI->getDestAlign().valueOrOne();
   }
 
   if (Opcode != TargetOpcode::G_MEMCPY_INLINE) {
     // We need to propagate the tail call flag from the IR inst as an argument.
     // Otherwise, we have to pessimize and assume later that we cannot tail call
     // any memory intrinsics.
     ICall.addImm(CI.isTailCall() ? 1 : 0);
   }
 
   // Create mem operands to store the alignment and volatile info.
-  auto VolFlag = IsVol ? MachineMemOperand::MOVolatile : MachineMemOperand::MONone;
-  ICall.addMemOperand(MF->getMachineMemOperand(
-      MachinePointerInfo(CI.getArgOperand(0)),
-      MachineMemOperand::MOStore | VolFlag, 1, DstAlign));
+  MachineMemOperand::Flags LoadFlags = MachineMemOperand::MOLoad;
+  MachineMemOperand::Flags StoreFlags = MachineMemOperand::MOStore;
+  if (IsVol) {
+    LoadFlags |= MachineMemOperand::MOVolatile;
+    StoreFlags |= MachineMemOperand::MOVolatile;
+  }
+
+  AAMDNodes AAInfo = CI.getAAMetadata();
+  if (AA && CopySize &&
+      AA->pointsToConstantMemory(MemoryLocation(
+          SrcPtr, LocationSize::precise(CopySize->getZExtValue()), AAInfo))) {
+    LoadFlags |= MachineMemOperand::MOInvariant;
+
+    // FIXME: pointsToConstantMemory probably does not imply dereferenceable,
+    // but the previous usage implied it did. Probably should check
+    // isDereferenceableAndAlignedPointer.
+    LoadFlags |= MachineMemOperand::MODereferenceable;
+  }
+
+  ICall.addMemOperand(
+      MF->getMachineMemOperand(MachinePointerInfo(CI.getArgOperand(0)),
+                               StoreFlags, 1, DstAlign, AAInfo));
   if (Opcode != TargetOpcode::G_MEMSET)
     ICall.addMemOperand(MF->getMachineMemOperand(
-        MachinePointerInfo(CI.getArgOperand(1)),
-        MachineMemOperand::MOLoad | VolFlag, 1, SrcAlign));
+        MachinePointerInfo(SrcPtr), LoadFlags, 1, SrcAlign, AAInfo));
 
   return true;
 }
 
 void IRTranslator::getStackGuard(Register DstReg,
                                  MachineIRBuilder &MIRBuilder) {
   const TargetRegisterInfo *TRI = MF->getSubtarget().getRegisterInfo();
   MRI->setRegClass(DstReg, TRI->getPointerRegClass(*MF));
bool IRTranslator::runOnMachineFunction(MachineFunction &CurMF) {
   EntryBuilder->setMF(*MF);
   MRI = &MF->getRegInfo();
   DL = &F.getParent()->getDataLayout();
   ORE = std::make_unique<OptimizationRemarkEmitter>(&F);
   const TargetMachine &TM = MF->getTarget();
   TM.resetTargetOptions(F);
   EnableOpts = OptLevel != CodeGenOpt::None && !skipFunction(F);
   FuncInfo.MF = MF;
-  if (EnableOpts)
+  if (EnableOpts) {
+    AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();
     FuncInfo.BPI = &getAnalysis<BranchProbabilityInfoWrapperPass>().getBPI();
-  else
+  } else {
+    AA = nullptr;
     FuncInfo.BPI = nullptr;
+  }
 
   FuncInfo.CanLowerReturn = CLI->checkReturnTypeForCallConv(*MF);
 
   const auto &TLI = *MF->getSubtarget().getTargetLowering();
 
   SL = std::make_unique<GISelSwitchLowering>(this, FuncInfo);
   SL->init(TLI, TM, *DL);
 

llvm/lib/CodeGen/InlineSpiller.cpp

RestrictStatepointRemat("restrict-statepoint-remat",
                        cl::desc("Restrict remat for statepoint operands"));
 
 namespace {
 
 class HoistSpillHelper : private LiveRangeEdit::Delegate {
   MachineFunction &MF;
   LiveIntervals &LIS;
   LiveStacks &LSS;
-  AliasAnalysis *AA;
   MachineDominatorTree &MDT;
   MachineLoopInfo &Loops;
   VirtRegMap &VRM;
   MachineRegisterInfo &MRI;
   const TargetInstrInfo &TII;
   const TargetRegisterInfo &TRI;
   const MachineBlockFrequencyInfo &MBFI;
 
void runHoistSpills(LiveInterval &OrigLI, VNInfo &OrigVNI,
                       SmallVectorImpl<MachineInstr *> &SpillsToRm,
                       DenseMap<MachineBasicBlock *, unsigned> &SpillsToIns);
 
 public:
   HoistSpillHelper(MachineFunctionPass &pass, MachineFunction &mf,
                    VirtRegMap &vrm)
       : MF(mf), LIS(pass.getAnalysis<LiveIntervals>()),
         LSS(pass.getAnalysis<LiveStacks>()),
-        AA(&pass.getAnalysis<AAResultsWrapperPass>().getAAResults()),
         MDT(pass.getAnalysis<MachineDominatorTree>()),
         Loops(pass.getAnalysis<MachineLoopInfo>()), VRM(vrm),
         MRI(mf.getRegInfo()), TII(*mf.getSubtarget().getInstrInfo()),
         TRI(*mf.getSubtarget().getRegisterInfo()),
         MBFI(pass.getAnalysis<MachineBlockFrequencyInfo>()),
         IPA(LIS, mf.getNumBlockIDs()) {}
 
   void addToMergeableSpills(MachineInstr &Spill, int StackSlot,
                             unsigned Original);
   bool rmFromMergeableSpills(MachineInstr &Spill, int StackSlot);
   void hoistAllSpills();
   void LRE_DidCloneVirtReg(Register, Register) override;
 };
 
 class InlineSpiller : public Spiller {
   MachineFunction &MF;
   LiveIntervals &LIS;
   LiveStacks &LSS;
-  AliasAnalysis *AA;
   MachineDominatorTree &MDT;
   MachineLoopInfo &Loops;
   VirtRegMap &VRM;
   MachineRegisterInfo &MRI;
   const TargetInstrInfo &TII;
   const TargetRegisterInfo &TRI;
   const MachineBlockFrequencyInfo &MBFI;
 
class InlineSpiller : public Spiller {
 
   ~InlineSpiller() override = default;
 
 public:
   InlineSpiller(MachineFunctionPass &Pass, MachineFunction &MF, VirtRegMap &VRM,
                 VirtRegAuxInfo &VRAI)
       : MF(MF), LIS(Pass.getAnalysis<LiveIntervals>()),
         LSS(Pass.getAnalysis<LiveStacks>()),
-        AA(&Pass.getAnalysis<AAResultsWrapperPass>().getAAResults()),
         MDT(Pass.getAnalysis<MachineDominatorTree>()),
         Loops(Pass.getAnalysis<MachineLoopInfo>()), VRM(VRM),
         MRI(MF.getRegInfo()), TII(*MF.getSubtarget().getInstrInfo()),
         TRI(*MF.getSubtarget().getRegisterInfo()),
         MBFI(Pass.getAnalysis<MachineBlockFrequencyInfo>()),
         HSpiller(Pass, MF, VRM), VRAI(VRAI) {}
 
   void spill(LiveRangeEdit &) override;
bool InlineSpiller::reMaterializeFor(LiveInterval &VirtReg, MachineInstr &MI) {
 
   ++NumRemats;
   return true;
 }
 
 /// reMaterializeAll - Try to rematerialize as many uses as possible,
 /// and trim the live ranges after.
 void InlineSpiller::reMaterializeAll() {
-  if (!Edit->anyRematerializable(AA))
+  if (!Edit->anyRematerializable())
     return;
 
   UsedValues.clear();
 
   // Try to remat before all uses of snippets.
   bool anyRemat = false;
   for (Register Reg : RegsToSpill) {
     LiveInterval &LI = LIS.getInterval(Reg);
for (Register Reg : RegsToSpill) {
     }
   }
 
   // Eliminate dead code after remat. Note that some snippet copies may be
   // deleted here.
   if (DeadDefs.empty())
     return;
   LLVM_DEBUG(dbgs() << "Remat created " << DeadDefs.size() << " dead defs.\n");
-  Edit->eliminateDeadDefs(DeadDefs, RegsToSpill, AA);
+  Edit->eliminateDeadDefs(DeadDefs, RegsToSpill);
 
   // LiveRangeEdit::eliminateDeadDef is used to remove dead define instructions
   // after rematerialization.  To remove a VNI for a vreg from its LiveInterval,
   // LiveIntervals::removeVRegDefAt is used. However, after non-PHI VNIs are all
   // removed, PHI VNI are still left in the LiveInterval.
   // So to get rid of unused reg, we need to check whether it has non-dbg
   // reference instead of whether it has non-empty interval.
   unsigned ResultPos = 0;
void InlineSpiller::spillAll() {
 
   // Spill around uses of all RegsToSpill.
   for (Register Reg : RegsToSpill)
     spillAroundUses(Reg);
 
   // Hoisted spills may cause dead code.
   if (!DeadDefs.empty()) {
     LLVM_DEBUG(dbgs() << "Eliminating " << DeadDefs.size() << " dead defs\n");
-    Edit->eliminateDeadDefs(DeadDefs, RegsToSpill, AA);
+    Edit->eliminateDeadDefs(DeadDefs, RegsToSpill);
   }
 
   // Finally delete the SnippetCopies.
   for (Register Reg : RegsToSpill) {
     for (MachineInstr &MI :
          llvm::make_early_inc_range(MRI.reg_instructions(Reg))) {
       assert(SnippetCopies.count(&MI) && "Remaining use wasn't a snippet copy");
       // FIXME: Do this with a LiveRangeEdit callback.
for (auto &Ent : MergeableSpills) {
     for (auto const RMEnt : SpillsToRm) {
       RMEnt->setDesc(TII.get(TargetOpcode::KILL));
       for (unsigned i = RMEnt->getNumOperands(); i; --i) {
         MachineOperand &MO = RMEnt->getOperand(i - 1);
         if (MO.isReg() && MO.isImplicit() && MO.isDef() && !MO.isDead())
           RMEnt->removeOperand(i - 1);
       }
     }
-    Edit.eliminateDeadDefs(SpillsToRm, None, AA);
+    Edit.eliminateDeadDefs(SpillsToRm, None);
   }
 }
 
 /// For VirtReg clone, the \p New register should have the same physreg or
 /// stackslot as the \p old register.
 void HoistSpillHelper::LRE_DidCloneVirtReg(Register New, Register Old) {
   if (VRM.hasPhys(Old))
     VRM.assignVirt2Phys(New, VRM.getPhys(Old));
   else if (VRM.getStackSlot(Old) != VirtRegMap::NO_STACK_SLOT)
     VRM.assignVirt2StackSlot(New, VRM.getStackSlot(Old));
   else
     llvm_unreachable("VReg should be assigned either physreg or stackslot");
   if (VRM.hasShape(Old))
     VRM.assignVirt2Shape(New, VRM.getShape(Old));
 }

llvm/lib/CodeGen/LiveIntervals.cpp

 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/LiveIntervals.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DepthFirstIterator.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/iterator_range.h"
-#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/CodeGen/LiveInterval.h"
 #include "llvm/CodeGen/LiveIntervalCalc.h"
 #include "llvm/CodeGen/LiveVariables.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
 #include "llvm/CodeGen/MachineDominators.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineInstr.h"

 #include <utility>
 
 using namespace llvm;
 
 #define DEBUG_TYPE "regalloc"
 
 char LiveIntervals::ID = 0;
 char &llvm::LiveIntervalsID = LiveIntervals::ID;
-INITIALIZE_PASS_BEGIN(LiveIntervals, "liveintervals",
-                "Live Interval Analysis", false, false)
-INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass)
+INITIALIZE_PASS_BEGIN(LiveIntervals, "liveintervals", "Live Interval Analysis",
+                      false, false)
 INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
 INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
 INITIALIZE_PASS_END(LiveIntervals, "liveintervals",
                 "Live Interval Analysis", false, false)
 
 #ifndef NDEBUG
 static cl::opt<bool> EnablePrecomputePhysRegs(
   "precompute-phys-liveness", cl::Hidden,
   cl::desc("Eagerly compute live intervals for all physreg units."));
 #else
 static bool EnablePrecomputePhysRegs = false;
 #endif // NDEBUG
 
 namespace llvm {
 
 cl::opt<bool> UseSegmentSetForPhysRegs(
     "use-segment-set-for-physregs", cl::Hidden, cl::init(true),
     cl::desc(
         "Use segment set for the computation of the live ranges of physregs."));
 
 } // end namespace llvm
 
 void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesCFG();
-  AU.addRequired<AAResultsWrapperPass>();
-  AU.addPreserved<AAResultsWrapperPass>();
   AU.addPreserved<LiveVariables>();
   AU.addPreservedID(MachineLoopInfoID);
   AU.addRequiredTransitiveID(MachineDominatorsID);
   AU.addPreservedID(MachineDominatorsID);
   AU.addPreserved<SlotIndexes>();
   AU.addRequiredTransitive<SlotIndexes>();
   MachineFunctionPass::getAnalysisUsage(AU);
 }
void LiveIntervals::releaseMemory() {
   VNInfoAllocator.Reset();
 }
 
 bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
   MF = &fn;
   MRI = &MF->getRegInfo();
   TRI = MF->getSubtarget().getRegisterInfo();
   TII = MF->getSubtarget().getInstrInfo();
-  AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();
   Indexes = &getAnalysis<SlotIndexes>();
   DomTree = &getAnalysis<MachineDominatorTree>();
 
   if (!LICalc)
     LICalc = new LiveIntervalCalc();
 
   // Allocate space for all virtual registers.
   VirtRegIntervals.resize(MRI->getNumVirtRegs());

llvm/lib/CodeGen/LiveRangeEdit.cpp

Register LiveRangeEdit::createFrom(Register OldReg) {
   // LiveInterval when it gets created but we cannot do that at
   // the moment.
   if (Parent && !Parent->isSpillable())
     LIS.getInterval(VReg).markNotSpillable();
   return VReg;
 }
 
 bool LiveRangeEdit::checkRematerializable(VNInfo *VNI,
-                                          const MachineInstr *DefMI,
-                                          AAResults *aa) {
+                                          const MachineInstr *DefMI) {
   assert(DefMI && "Missing instruction");
   ScannedRemattable = true;
-  if (!TII.isTriviallyReMaterializable(*DefMI, aa))
+  if (!TII.isTriviallyReMaterializable(*DefMI))
     return false;
   Remattable.insert(VNI);
   return true;
 }
 
-void LiveRangeEdit::scanRemattable(AAResults *aa) {
+void LiveRangeEdit::scanRemattable() {
   for (VNInfo *VNI : getParent().valnos) {
     if (VNI->isUnused())
       continue;
     unsigned Original = VRM->getOriginal(getReg());
     LiveInterval &OrigLI = LIS.getInterval(Original);
     VNInfo *OrigVNI = OrigLI.getVNInfoAt(VNI->def);
     if (!OrigVNI)
       continue;
     MachineInstr *DefMI = LIS.getInstructionFromIndex(OrigVNI->def);
     if (!DefMI)
       continue;
-    checkRematerializable(OrigVNI, DefMI, aa);
+    checkRematerializable(OrigVNI, DefMI);
   }
   ScannedRemattable = true;
 }
 
-bool LiveRangeEdit::anyRematerializable(AAResults *aa) {
+bool LiveRangeEdit::anyRematerializable() {
   if (!ScannedRemattable)
-    scanRemattable(aa);
+    scanRemattable();
   return !Remattable.empty();
 }
 
 /// allUsesAvailableAt - Return true if all registers used by OrigMI at
 /// OrigIdx are also available with the same value at UseIdx.
 bool LiveRangeEdit::allUsesAvailableAt(const MachineInstr *OrigMI,
                                        SlotIndex OrigIdx,
                                        SlotIndex UseIdx) const {
bool LiveRangeEdit::useIsKill(const LiveInterval &LI,
   for (const LiveInterval::SubRange &S : LI.subranges()) {
     if ((S.LaneMask & LaneMask).any() && S.Query(Idx).isKill())
       return true;
   }
   return false;
 }
 
 /// Find all live intervals that need to shrink, then remove the instruction.
-void LiveRangeEdit::eliminateDeadDef(MachineInstr *MI, ToShrinkSet &ToShrink,
-                                     AAResults *AA) {
+void LiveRangeEdit::eliminateDeadDef(MachineInstr *MI, ToShrinkSet &ToShrink) {
   assert(MI->allDefsAreDead() && "Def isn't really dead");
   SlotIndex Idx = LIS.getInstructionIndex(*MI).getRegSlot();
 
   // Never delete a bundled instruction.
   if (MI->isBundled()) {
     return;
   }
   // Never delete inline asm.
if (ReadsPhysRegs) {
     // don't delete the inst. Replace the dest with a new reg, and keep
     // the inst for remat of other siblings. The inst is saved in
     // LiveRangeEdit::DeadRemats and will be deleted after all the
     // allocations of the func are done.
     // However, immediately delete instructions which have unshrunk virtual
     // register uses. That may provoke RA to split an interval at the KILL
     // and later result in an invalid live segment end.
     if (isOrigDef && DeadRemats && !HasLiveVRegUses &&
-        TII.isTriviallyReMaterializable(*MI, AA)) {
+        TII.isTriviallyReMaterializable(*MI)) {
       LiveInterval &NewLI = createEmptyIntervalFrom(Dest, false);
       VNInfo *VNI = NewLI.getNextValue(Idx, LIS.getVNInfoAllocator());
       NewLI.addSegment(LiveInterval::Segment(Idx, Idx.getDeadSlot(), VNI));
       pop_back();
       DeadRemats->insert(MI);
       const TargetRegisterInfo &TRI = *MRI.getTargetRegisterInfo();
       MI->substituteRegister(Dest, NewLI.reg(), 0, TRI);
       MI->getOperand(0).setIsDead(true);
for (unsigned i = 0, e = RegsToErase.size(); i != e; ++i) {
     if (LIS.hasInterval(Reg) && MRI.reg_nodbg_empty(Reg)) {
       ToShrink.remove(&LIS.getInterval(Reg));
       eraseVirtReg(Reg);
     }
   }
 }
 
 void LiveRangeEdit::eliminateDeadDefs(SmallVectorImpl<MachineInstr *> &Dead,
-                                      ArrayRef<Register> RegsBeingSpilled,
-                                      AAResults *AA) {
+                                      ArrayRef<Register> RegsBeingSpilled) {
   ToShrinkSet ToShrink;
 
   for (;;) {
     // Erase all dead defs.
     while (!Dead.empty())
-      eliminateDeadDef(Dead.pop_back_val(), ToShrink, AA);
+      eliminateDeadDef(Dead.pop_back_val(), ToShrink);
 
     if (ToShrink.empty())
       break;
 
     // Shrink just one live interval. Then delete new dead defs.
     LiveInterval *LI = ToShrink.pop_back_val();
     if (foldAsLoad(LI, Dead))
       continue;

llvm/lib/CodeGen/MLRegallocEvictAdvisor.cpp

 //===- MLRegAllocEvictAdvisor.cpp - ML eviction advisor -------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 //
 // Implementation of the ML eviction advisor and reward injection pass
 //
 //===----------------------------------------------------------------------===//
 
 #include "AllocationOrder.h"
 #include "RegAllocEvictionAdvisor.h"
 #include "RegAllocGreedy.h"
-#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/MLModelRunner.h"
 #include "llvm/Analysis/TensorSpec.h"
-#if defined(LLVM_HAVE_TF_AOT_REGALLOCEVICTMODEL) || defined(LLVM_HAVE_TF_API) 
+#if defined(LLVM_HAVE_TF_AOT_REGALLOCEVICTMODEL) || defined(LLVM_HAVE_TF_API)
 #include "llvm/Analysis/ModelUnderTrainingRunner.h"
 #include "llvm/Analysis/NoInferenceModelRunner.h"
 #endif
 #include "llvm/Analysis/ReleaseModeModelRunner.h"
 #include "llvm/CodeGen/CalcSpillWeights.h"
 #include "llvm/CodeGen/LiveRegMatrix.h"
 #include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
StringRef getPassName() const override {
     return "Register Allocation Pass Scoring";
   }
 
   /// RegAllocReward analysis usage.
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
     AU.addRequired<RegAllocEvictionAdvisorAnalysis>();
     AU.addRequired<MachineBlockFrequencyInfo>();
-    AU.addRequired<AAResultsWrapperPass>();
     MachineFunctionPass::getAnalysisUsage(AU);
   }
 
   /// Performs this pass
   bool runOnMachineFunction(MachineFunction &) override;
 };
 
 char RegAllocScoring::ID = 0;
for (size_t I = 1; I < MUTR->outputLoggedFeatureSpecs().size();
           reinterpret_cast<const char *>(
               MUTR->lastEvaluationResult()->getUntypedTensorValue(I)));
   // The output is right after the features and the extra outputs
   Log->logInt64Value(CurrentFeature, &Ret);
   return Ret;
 }
 
 bool RegAllocScoring::runOnMachineFunction(MachineFunction &MF) {
   if (auto *DevModeAnalysis = dyn_cast<DevelopmentModeEvictionAdvisorAnalysis>(
           &getAnalysis<RegAllocEvictionAdvisorAnalysis>()))
     if (auto *Log = DevModeAnalysis->getLogger(MF))
       Log->logFloatFinalReward(static_cast<float>(
-          calculateRegAllocScore(
-              MF, getAnalysis<MachineBlockFrequencyInfo>(),
-              getAnalysis<AAResultsWrapperPass>().getAAResults())
+          calculateRegAllocScore(MF, getAnalysis<MachineBlockFrequencyInfo>())
               .getScore()));
 
   return false;
 }
 #endif // #ifdef LLVM_HAVE_TF_API
 
 RegAllocEvictionAdvisorAnalysis *llvm::createReleaseModeAdvisor() {
   return new ReleaseModeEvictionAdvisorAnalysis();
 }
 
 // In all cases except development mode, we don't need scoring.
 #if !defined(LLVM_HAVE_TF_API)
 bool RegAllocScoring::runOnMachineFunction(MachineFunction &) { return false; }
 #endif

llvm/lib/CodeGen/MachineCSE.cpp

bool MachineCSE::isCSECandidate(MachineInstr *MI) {
   if (MI->mayStore() || MI->isCall() || MI->isTerminator() ||
       MI->mayRaiseFPException() || MI->hasUnmodeledSideEffects())
     return false;
 
   if (MI->mayLoad()) {
     // Okay, this instruction does a load. As a refinement, we allow the target
     // to decide whether the loaded value is actually a constant. If so, we can
     // actually use it as a load.
-    if (!MI->isDereferenceableInvariantLoad(AA))
+    if (!MI->isDereferenceableInvariantLoad())
       // FIXME: we should be able to hoist loads with no other side effects if
       // there are no other instructions which can change memory in this loop.
       // This is a trivial form of alias analysis.
       return false;
   }
 
   // Ignore stack guard loads, otherwise the register that holds CSEed value may
   // be spilled and get loaded back with corrupted data.

llvm/lib/CodeGen/MachineInstr.cpp

if (isPosition() || isDebugInstr() || isTerminator() ||
       mayRaiseFPException() || hasUnmodeledSideEffects())
     return false;
 
   // See if this instruction does a load.  If so, we have to guarantee that the
   // loaded value doesn't change between the load and the its intended
   // destination. The check for isInvariantLoad gives the target the chance to
   // classify the load as always returning a constant, e.g. a constant pool
   // load.
-  if (mayLoad() && !isDereferenceableInvariantLoad(AA))
+  if (mayLoad() && !isDereferenceableInvariantLoad())
     // Otherwise, this is a real load.  If there is a store between the load and
     // end of block, we can't move it.
     return !SawStore;
 
   return true;
 }
 
 static bool MemOperandsHaveAlias(const MachineFrameInfo &MFI, AAResults *AA,
bool MachineInstr::hasOrderedMemoryRef() const {
   return llvm::any_of(memoperands(), [](const MachineMemOperand *MMO) {
     return !MMO->isUnordered();
   });
 }
 
 /// isDereferenceableInvariantLoad - Return true if this instruction will never
 /// trap and is loading from a location whose value is invariant across a run of
 /// this function.
-bool MachineInstr::isDereferenceableInvariantLoad(AAResults *AA) const {
+bool MachineInstr::isDereferenceableInvariantLoad() const {
   // If the instruction doesn't load at all, it isn't an invariant load.
   if (!mayLoad())
     return false;
 
   // If the instruction has lost its memoperands, conservatively assume that
   // it may not be an invariant load.
   if (memoperands_empty())
     return false;
for (MachineMemOperand *MMO : memoperands()) {
     if (MMO->isStore()) return false;
     if (MMO->isInvariant() && MMO->isDereferenceable())
       continue;
 
     // A load from a constant PseudoSourceValue is invariant.
     if (const PseudoSourceValue *PSV = MMO->getPseudoValue()) {
       if (PSV->isConstant(&MFI))
         continue;
-    } else if (const Value *V = MMO->getValue()) {
-      // If we have an AliasAnalysis, ask it whether the memory is constant.
-      if (AA &&
-          AA->pointsToConstantMemory(
-              MemoryLocation(V, MMO->getSize(), MMO->getAAInfo())))
-        continue;
     }
 
     // Otherwise assume conservatively.
     return false;
   }
 
   // Everything checks out.
   return true;

llvm/lib/CodeGen/MachineLICM.cpp

bool CanCauseHighRegPressure(const DenseMap<unsigned, int> &Cost,
                                  bool Cheap);
 
     void UpdateBackTraceRegPressure(const MachineInstr *MI);
 
     bool IsProfitableToHoist(MachineInstr &MI);
 
     bool IsGuaranteedToExecute(MachineBasicBlock *BB);
 
-    bool isTriviallyReMaterializable(const MachineInstr &MI,
-                                     AAResults *AA) const;
+    bool isTriviallyReMaterializable(const MachineInstr &MI) const;
 
     void EnterScope(MachineBasicBlock *MBB);
 
     void ExitScope(MachineBasicBlock *MBB);
 
     void ExitScopeIfDone(
         MachineDomTreeNode *Node,
         DenseMap<MachineDomTreeNode *, unsigned> &OpenChildren,
bool MachineLICMBase::IsGuaranteedToExecute(MachineBasicBlock *BB) {
   SpeculationState = SpeculateFalse;
   return true;
 }
 
 /// Check if \p MI is trivially remateralizable and if it does not have any
 /// virtual register uses. Even though rematerializable RA might not actually
 /// rematerialize it in this scenario. In that case we do not want to hoist such
 /// instruction out of the loop in a belief RA will sink it back if needed.
-bool MachineLICMBase::isTriviallyReMaterializable(const MachineInstr &MI,
-                                                  AAResults *AA) const {
-  if (!TII->isTriviallyReMaterializable(MI, AA))
+bool MachineLICMBase::isTriviallyReMaterializable(
+    const MachineInstr &MI) const {
+  if (!TII->isTriviallyReMaterializable(MI))
     return false;
 
   for (const MachineOperand &MO : MI.operands()) {
     if (MO.isReg() && MO.isUse() && MO.getReg().isVirtual())
       return false;
   }
 
   return true;
bool MachineLICMBase::IsProfitableToHoist(MachineInstr &MI) {
   // Don't hoist a cheap instruction if it would create a copy in the loop.
   if (CheapInstr && CreatesCopy) {
     LLVM_DEBUG(dbgs() << "Won't hoist cheap instr with loop PHI use: " << MI);
     return false;
   }
 
   // Rematerializable instructions should always be hoisted providing the
   // register allocator can just pull them down again when needed.
-  if (isTriviallyReMaterializable(MI, AA))
+  if (isTriviallyReMaterializable(MI))
     return true;
 
   // FIXME: If there are long latency loop-invariant instructions inside the
   // loop at this point, why didn't the optimizer's LICM hoist them?
   for (unsigned i = 0, e = MI.getDesc().getNumOperands(); i != e; ++i) {
     const MachineOperand &MO = MI.getOperand(i);
     if (!MO.isReg() || MO.isImplicit())
       continue;
bool MachineLICMBase::IsProfitableToHoist(MachineInstr &MI) {
   if (AvoidSpeculation &&
       (!IsGuaranteedToExecute(MI.getParent()) && !MayCSE(&MI))) {
     LLVM_DEBUG(dbgs() << "Won't speculate: " << MI);
     return false;
   }
 
   // High register pressure situation, only hoist if the instruction is going
   // to be remat'ed.
-  if (!isTriviallyReMaterializable(MI, AA) &&
-      !MI.isDereferenceableInvariantLoad(AA)) {
+  if (!isTriviallyReMaterializable(MI) &&
+      !MI.isDereferenceableInvariantLoad()) {
     LLVM_DEBUG(dbgs() << "Can't remat / high reg-pressure: " << MI);
     return false;
   }
 
   return true;
 }
 
 /// Unfold a load from the given machineinstr if the load itself could be
 /// hoisted. Return the unfolded and hoistable load, or null if the load
 /// couldn't be unfolded or if it wouldn't be hoistable.
 MachineInstr *MachineLICMBase::ExtractHoistableLoad(MachineInstr *MI) {
   // Don't unfold simple loads.
   if (MI->canFoldAsLoad())
     return nullptr;
 
   // If not, we may be able to unfold a load and hoist that.
   // First test whether the instruction is loading from an amenable
   // memory location.
-  if (!MI->isDereferenceableInvariantLoad(AA))
+  if (!MI->isDereferenceableInvariantLoad())
     return nullptr;
 
   // Next determine the register class for a temporary register.
   unsigned LoadRegIndex;
   unsigned NewOpc =
     TII->getOpcodeAfterMemoryUnfold(MI->getOpcode(),
                                     /*UnfoldLoad=*/true,
                                     /*UnfoldStore=*/false,

llvm/lib/CodeGen/MachinePipeliner.cpp

for (auto &SI : SU->Succs) {
       }
     }
   }
   return false;
 }
 
 /// Return true if the instruction causes a chain between memory
 /// references before and after it.
-static bool isDependenceBarrier(MachineInstr &MI, AliasAnalysis *AA) {
+static bool isDependenceBarrier(MachineInstr &MI) {
   return MI.isCall() || MI.mayRaiseFPException() ||
          MI.hasUnmodeledSideEffects() ||
          (MI.hasOrderedMemoryRef() &&
-          (!MI.mayLoad() || !MI.isDereferenceableInvariantLoad(AA)));
+          (!MI.mayLoad() || !MI.isDereferenceableInvariantLoad()));
 }
 
 /// Return the underlying objects for the memory references of an instruction.
 /// This function calls the code in ValueTracking, but first checks that the
 /// instruction has a memory operand.
 static void getUnderlyingObjects(const MachineInstr *MI,
                                  SmallVectorImpl<const Value *> &Objs) {
   if (!MI->hasOneMemOperand())

 /// dependence. This code is very similar to the code in ScheduleDAGInstrs
 /// but that code doesn't create loop carried dependences.
 void SwingSchedulerDAG::addLoopCarriedDependences(AliasAnalysis *AA) {
   MapVector<const Value *, SmallVector<SUnit *, 4>> PendingLoads;
   Value *UnknownValue =
     UndefValue::get(Type::getVoidTy(MF.getFunction().getContext()));
   for (auto &SU : SUnits) {
     MachineInstr &MI = *SU.getInstr();
-    if (isDependenceBarrier(MI, AA))
+    if (isDependenceBarrier(MI))
       PendingLoads.clear();
     else if (MI.mayLoad()) {
       SmallVector<const Value *, 4> Objs;
       ::getUnderlyingObjects(&MI, Objs);
       if (Objs.empty())
         Objs.push_back(UnknownValue);
       for (auto V : Objs) {
         SmallVector<SUnit *, 4> &SUs = PendingLoads[V];

llvm/lib/CodeGen/RegAllocBasic.cpp

 INITIALIZE_PASS_BEGIN(RABasic, "regallocbasic", "Basic Register Allocator",
                       false, false)
 INITIALIZE_PASS_DEPENDENCY(LiveDebugVariables)
 INITIALIZE_PASS_DEPENDENCY(SlotIndexes)
 INITIALIZE_PASS_DEPENDENCY(LiveIntervals)
 INITIALIZE_PASS_DEPENDENCY(RegisterCoalescer)
 INITIALIZE_PASS_DEPENDENCY(MachineScheduler)
 INITIALIZE_PASS_DEPENDENCY(LiveStacks)
+INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
 INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
 INITIALIZE_PASS_DEPENDENCY(VirtRegMap)
 INITIALIZE_PASS_DEPENDENCY(LiveRegMatrix)
 INITIALIZE_PASS_END(RABasic, "regallocbasic", "Basic Register Allocator", false,
                     false)
 
 bool RABasic::LRE_CanEraseVirtReg(Register VirtReg) {

llvm/lib/CodeGen/RegAllocGreedy.h

 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/IndexedMap.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/CodeGen/CalcSpillWeights.h"
 #include "llvm/CodeGen/LiveInterval.h"
 #include "llvm/CodeGen/LiveRangeEdit.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/RegisterClassInfo.h"
 #include "llvm/CodeGen/Spiller.h"
 #include "llvm/CodeGen/TargetRegisterInfo.h"
private:
   SlotIndexes *Indexes;
   MachineBlockFrequencyInfo *MBFI;
   MachineDominatorTree *DomTree;
   MachineLoopInfo *Loops;
   MachineOptimizationRemarkEmitter *ORE;
   EdgeBundles *Bundles;
   SpillPlacement *SpillPlacer;
   LiveDebugVariables *DebugVars;
-  AliasAnalysis *AA;
 
   // state
   std::unique_ptr<Spiller> SpillerInstance;
   PQueue Queue;
   std::unique_ptr<VirtRegAuxInfo> VRAI;
   Optional<ExtraRegInfo> ExtraInfo;
   std::unique_ptr<RegAllocEvictionAdvisor> EvictAdvisor;
 

llvm/lib/CodeGen/RegAllocGreedy.cpp

RAGreedy::RAGreedy(RegClassFilterFunc F):
   MachineFunctionPass(ID),
   RegAllocBase(F) {
 }
 
 void RAGreedy::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesCFG();
   AU.addRequired<MachineBlockFrequencyInfo>();
   AU.addPreserved<MachineBlockFrequencyInfo>();
-  AU.addRequired<AAResultsWrapperPass>();
-  AU.addPreserved<AAResultsWrapperPass>();
   AU.addRequired<LiveIntervals>();
   AU.addPreserved<LiveIntervals>();
   AU.addRequired<SlotIndexes>();
   AU.addPreserved<SlotIndexes>();
   AU.addRequired<LiveDebugVariables>();
   AU.addPreserved<LiveDebugVariables>();
   AU.addRequired<LiveStacks>();
   AU.addPreserved<LiveStacks>();
bool RAGreedy::runOnMachineFunction(MachineFunction &mf) {
   Indexes = &getAnalysis<SlotIndexes>();
   MBFI = &getAnalysis<MachineBlockFrequencyInfo>();
   DomTree = &getAnalysis<MachineDominatorTree>();
   ORE = &getAnalysis<MachineOptimizationRemarkEmitterPass>().getORE();
   Loops = &getAnalysis<MachineLoopInfo>();
   Bundles = &getAnalysis<EdgeBundles>();
   SpillPlacer = &getAnalysis<SpillPlacement>();
   DebugVars = &getAnalysis<LiveDebugVariables>();
-  AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();
 
   initializeCSRCost();
 
   RegCosts = TRI->getRegisterCosts(*MF);
   RegClassPriorityTrumpsGlobalness =
       GreedyRegClassPriorityTrumpsGlobalness.getNumOccurrences()
           ? GreedyRegClassPriorityTrumpsGlobalness
           : TRI->regClassPriorityTrumpsGlobalness(*MF);
 
   ExtraInfo.emplace();
   EvictAdvisor =
       getAnalysis<RegAllocEvictionAdvisorAnalysis>().getAdvisor(*MF, *this);
 
   VRAI = std::make_unique<VirtRegAuxInfo>(*MF, *LIS, *VRM, *Loops, *MBFI);
   SpillerInstance.reset(createInlineSpiller(*this, *MF, *VRM, *VRAI));
 
   VRAI->calculateSpillWeightsAndHints();
 
   LLVM_DEBUG(LIS->dump());
 
   SA.reset(new SplitAnalysis(*VRM, *LIS, *Loops));
-  SE.reset(new SplitEditor(*SA, *AA, *LIS, *VRM, *DomTree, *MBFI, *VRAI));
+  SE.reset(new SplitEditor(*SA, *LIS, *VRM, *DomTree, *MBFI, *VRAI));
 
   IntfCache.init(MF, Matrix->getLiveUnions(), Indexes, LIS, TRI);
   GlobalCand.resize(32);  // This will grow as needed.
   SetOfBrokenHints.clear();
 
   allocatePhysRegs();
   tryHintsRecoloring();
 
   if (VerifyEnabled)
     MF->verify(this, "Before post optimization");
   postOptimization();
   reportStats();
 
   releaseMemory();
   return true;
 }

llvm/lib/CodeGen/RegAllocScore.h

 
 #ifndef LLVM_CODEGEN_REGALLOCSCORE_H_
 #define LLVM_CODEGEN_REGALLOCSCORE_H_
 
 #include "llvm/ADT/STLFunctionalExtras.h"
 
 namespace llvm {
 
-class AAResults;
 class MachineBasicBlock;
 class MachineBlockFrequencyInfo;
 class MachineFunction;
 class MachineInstr;
 
 /// Regalloc score.
 class RegAllocScore final {
   double CopyCounts = 0.0;
public:
   bool operator!=(const RegAllocScore &Other) const;
   double getScore() const;
 };
 
 /// Calculate a score. When comparing 2 scores for the same function but
 /// different policies, the better policy would have a smaller score.
 /// The implementation is the overload below (which is also easily unittestable)
 RegAllocScore calculateRegAllocScore(const MachineFunction &MF,
-                                     const MachineBlockFrequencyInfo &MBFI,
-                                     AAResults &AAResults);
+                                     const MachineBlockFrequencyInfo &MBFI);
 
 /// Implementation of the above, which is also more easily unittestable.
 RegAllocScore calculateRegAllocScore(
     const MachineFunction &MF,
     llvm::function_ref<double(const MachineBasicBlock &)> GetBBFreq,
     llvm::function_ref<bool(const MachineInstr &)> IsTriviallyRematerializable);
 } // end namespace llvm
 
 #endif // LLVM_CODEGEN_REGALLOCSCORE_H_

llvm/lib/CodeGen/RegAllocScore.cpp

double RegAllocScore::getScore() const {
   Ret += CheapRematWeight * cheapRematCounts();
   Ret += ExpensiveRematWeight * expensiveRematCounts();
 
   return Ret;
 }
 
 RegAllocScore
 llvm::calculateRegAllocScore(const MachineFunction &MF,
-                             const MachineBlockFrequencyInfo &MBFI,
-                             AAResults &AAResults) {
+                             const MachineBlockFrequencyInfo &MBFI) {
   return calculateRegAllocScore(
       MF,
       [&](const MachineBasicBlock &MBB) {
         return MBFI.getBlockFreqRelativeToEntryBlock(&MBB);
       },
       [&](const MachineInstr &MI) {
         return MF.getSubtarget().getInstrInfo()->isTriviallyReMaterializable(
-            MI, &AAResults);
+            MI);
       });
 }
 
 RegAllocScore llvm::calculateRegAllocScore(
     const MachineFunction &MF,
     llvm::function_ref<double(const MachineBasicBlock &)> GetBBFreq,
     llvm::function_ref<bool(const MachineInstr &)>
         IsTriviallyRematerializable) {

llvm/lib/CodeGen/RegisterCoalescer.cpp

bool RegisterCoalescer::reMaterializeTrivialDef(const CoalescerPair &CP,
   if (!DefMI)
     return false;
   if (DefMI->isCopyLike()) {
     IsDefCopy = true;
     return false;
   }
   if (!TII->isAsCheapAsAMove(*DefMI))
     return false;
-  if (!TII->isTriviallyReMaterializable(*DefMI, AA))
+  if (!TII->isTriviallyReMaterializable(*DefMI))
     return false;
   if (!definesFullReg(*DefMI, SrcReg))
     return false;
   bool SawStore = false;
   if (!DefMI->isSafeToMove(AA, SawStore))
     return false;
   const MCInstrDesc &MCID = DefMI->getDesc();
   if (MCID.getNumDefs() != 1)

llvm/lib/CodeGen/ScheduleDAGInstrs.cpp

if (V2SU.SU == SU)
       continue;
 
     V2SU.SU->addPred(SDep(SU, SDep::Anti, Reg));
   }
 }
 
 /// Returns true if MI is an instruction we are unable to reason about
 /// (like a call or something with unmodeled side effects).
-static inline bool isGlobalMemoryObject(AAResults *AA, MachineInstr *MI) {
+static inline bool isGlobalMemoryObject(MachineInstr *MI) {
   return MI->isCall() || MI->hasUnmodeledSideEffects() ||
-         (MI->hasOrderedMemoryRef() && !MI->isDereferenceableInvariantLoad(AA));
+         (MI->hasOrderedMemoryRef() && !MI->isDereferenceableInvariantLoad());
 }
 
 void ScheduleDAGInstrs::addChainDependency (SUnit *SUa, SUnit *SUb,
                                             unsigned Latency) {
   if (SUa->getInstr()->mayAlias(AAForDep, *SUb->getInstr(), UseTBAA)) {
     SDep Dep(SUa, SDep::MayAliasMem);
     Dep.setLatency(Latency);
     SUb->addPred(Dep);
if (SU->NumSuccs == 0 && SU->Latency > 1 && (HasVRegDef || MI.mayLoad())) {
       ExitSU.addPred(Dep);
     }
 
     // Add memory dependencies (Note: isStoreToStackSlot and
     // isLoadFromStackSLot are not usable after stack slots are lowered to
     // actual addresses).
 
     // This is a barrier event that acts as a pivotal node in the DAG.
-    if (isGlobalMemoryObject(AA, &MI)) {
+    if (isGlobalMemoryObject(&MI)) {
 
       // Become the barrier chain.
       if (BarrierChain)
         BarrierChain->addPredBarrier(SU);
       BarrierChain = SU;
 
       LLVM_DEBUG(dbgs() << "Global memory object and new barrier chain: SU("
                         << BarrierChain->NodeNum << ").\n";);
if (MI.mayRaiseFPException()) {
         LLVM_DEBUG(dbgs() << "Reducing FPExceptions map.\n";);
         Value2SUsMap empty;
         reduceHugeMemNodeMaps(FPExceptions, empty, getReductionSize());
       }
     }
 
     // If it's not a store or a variant load, we're done.
     if (!MI.mayStore() &&
-        !(MI.mayLoad() && !MI.isDereferenceableInvariantLoad(AA)))
+        !(MI.mayLoad() && !MI.isDereferenceableInvariantLoad()))
       continue;
 
     // Always add dependecy edge to BarrierChain if present.
     if (BarrierChain)
       BarrierChain->addPredBarrier(SU);
 
     // Find the underlying objects for MI. The Objs vector is either
     // empty, or filled with the Values of memory locations which this

llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/None.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Triple.h"
 #include "llvm/ADT/Twine.h"
+#include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/MemoryLocation.h"
 #include "llvm/Analysis/ValueTracking.h"
 #include "llvm/CodeGen/Analysis.h"
 #include "llvm/CodeGen/FunctionLoweringInfo.h"
 #include "llvm/CodeGen/ISDOpcodes.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineConstantPool.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"

 }
 
 static SDValue getMemcpyLoadsAndStores(SelectionDAG &DAG, const SDLoc &dl,
                                        SDValue Chain, SDValue Dst, SDValue Src,
                                        uint64_t Size, Align Alignment,
                                        bool isVol, bool AlwaysInline,
                                        MachinePointerInfo DstPtrInfo,
                                        MachinePointerInfo SrcPtrInfo,
-                                       const AAMDNodes &AAInfo) {
+                                       const AAMDNodes &AAInfo, AAResults *AA) {
   // Turn a memcpy of undef to nop.
   // FIXME: We need to honor volatile even is Src is undef.
   if (Src.isUndef())
     return Chain;
 
   // Expand memcpy to a series of load and store ops if the size operand falls
   // below a certain threshold.
   // TODO: In the AlwaysInline case, if the size is big then generate a loop
if (NewAlign > Alignment) {
       Alignment = NewAlign;
     }
   }
 
   // Prepare AAInfo for loads/stores after lowering this memcpy.
   AAMDNodes NewAAInfo = AAInfo;
   NewAAInfo.TBAA = NewAAInfo.TBAAStruct = nullptr;
 
+  const Value *SrcVal = SrcPtrInfo.V.dyn_cast<const Value *>();
+  bool isConstant =
+      AA && SrcVal &&
+      AA->pointsToConstantMemory(MemoryLocation(SrcVal, Size, AAInfo));
+
   MachineMemOperand::Flags MMOFlags =
       isVol ? MachineMemOperand::MOVolatile : MachineMemOperand::MONone;
   SmallVector<SDValue, 16> OutLoadChains;
   SmallVector<SDValue, 16> OutStoreChains;
   SmallVector<SDValue, 32> OutChains;
   unsigned NumMemOps = MemOps.size();
   uint64_t SrcOff = 0, DstOff = 0;
   for (unsigned i = 0; i != NumMemOps; ++i) {
if (!Store.getNode()) {
       EVT NVT = TLI.getTypeToTransformTo(C, VT);
       assert(NVT.bitsGE(VT));
 
       bool isDereferenceable =
         SrcPtrInfo.getWithOffset(SrcOff).isDereferenceable(VTSize, C, DL);
       MachineMemOperand::Flags SrcMMOFlags = MMOFlags;
       if (isDereferenceable)
         SrcMMOFlags |= MachineMemOperand::MODereferenceable;
+      if (isConstant)
+        SrcMMOFlags |= MachineMemOperand::MOInvariant;
 
       Value = DAG.getExtLoad(
           ISD::EXTLOAD, dl, NVT, Chain,
           DAG.getMemBasePlusOffset(Src, TypeSize::Fixed(SrcOff), dl),
           SrcPtrInfo.getWithOffset(SrcOff), VT,
           commonAlignment(*SrcAlign, SrcOff), SrcMMOFlags, NewAAInfo);
       OutLoadChains.push_back(Value.getValue(1));
 
static void checkAddrSpaceIsValidForLibcall(const TargetLowering *TLI,
   }
 }
 
 SDValue SelectionDAG::getMemcpy(SDValue Chain, const SDLoc &dl, SDValue Dst,
                                 SDValue Src, SDValue Size, Align Alignment,
                                 bool isVol, bool AlwaysInline, bool isTailCall,
                                 MachinePointerInfo DstPtrInfo,
                                 MachinePointerInfo SrcPtrInfo,
-                                const AAMDNodes &AAInfo) {
+                                const AAMDNodes &AAInfo, AAResults *AA) {
   // Check to see if we should lower the memcpy to loads and stores first.
   // For cases within the target-specified limits, this is the best choice.
   ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
   if (ConstantSize) {
     // Memcpy with size zero? Just return the original chain.
     if (ConstantSize->isZero())
       return Chain;
 
     SDValue Result = getMemcpyLoadsAndStores(
         *this, dl, Chain, Dst, Src, ConstantSize->getZExtValue(), Alignment,
-        isVol, false, DstPtrInfo, SrcPtrInfo, AAInfo);
+        isVol, false, DstPtrInfo, SrcPtrInfo, AAInfo, AA);
     if (Result.getNode())
       return Result;
   }
 
   // Then check to see if we should lower the memcpy with target-specific
   // code. If the target chooses to do this, this is the next best.
   if (TSI) {
     SDValue Result = TSI->EmitTargetCodeForMemcpy(
         *this, dl, Chain, Dst, Src, Size, Alignment, isVol, AlwaysInline,
         DstPtrInfo, SrcPtrInfo);
     if (Result.getNode())
       return Result;
   }
 
   // If we really need inline code and the target declined to provide it,
   // use a (potentially long) sequence of loads and stores.
   if (AlwaysInline) {
     assert(ConstantSize && "AlwaysInline requires a constant size!");
-    return getMemcpyLoadsAndStores(*this, dl, Chain, Dst, Src,
-                                   ConstantSize->getZExtValue(), Alignment,
-                                   isVol, true, DstPtrInfo, SrcPtrInfo, AAInfo);
+    return getMemcpyLoadsAndStores(
+        *this, dl, Chain, Dst, Src, ConstantSize->getZExtValue(), Alignment,
+        isVol, true, DstPtrInfo, SrcPtrInfo, AAInfo, AA);
   }
 
   checkAddrSpaceIsValidForLibcall(TLI, DstPtrInfo.getAddrSpace());
   checkAddrSpaceIsValidForLibcall(TLI, SrcPtrInfo.getAddrSpace());
 
   // FIXME: If the memcpy is volatile (isVol), lowering it to a plain libc
   // memcpy is not guaranteed to be safe. libc memcpys aren't required to
   // respect volatile, so they may do things like read or write memory
SDValue SelectionDAG::getAtomicMemcpy(SDValue Chain, const SDLoc &dl,
   return CallResult.second;
 }
 
 SDValue SelectionDAG::getMemmove(SDValue Chain, const SDLoc &dl, SDValue Dst,
                                  SDValue Src, SDValue Size, Align Alignment,
                                  bool isVol, bool isTailCall,
                                  MachinePointerInfo DstPtrInfo,
                                  MachinePointerInfo SrcPtrInfo,
-                                 const AAMDNodes &AAInfo) {
+                                 const AAMDNodes &AAInfo, AAResults *AA) {
   // Check to see if we should lower the memmove to loads and stores first.
   // For cases within the target-specified limits, this is the best choice.
   ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
   if (ConstantSize) {
     // Memmove with size zero? Just return the original chain.
     if (ConstantSize->isZero())
       return Chain;
 

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

void SelectionDAGBuilder::visitLoad(const LoadInst &I) {
   unsigned NumValues = ValueVTs.size();
   if (NumValues == 0)
     return;
 
   Align Alignment = I.getAlign();
   AAMDNodes AAInfo = I.getAAMetadata();
   const MDNode *Ranges = I.getMetadata(LLVMContext::MD_range);
   bool isVolatile = I.isVolatile();
+  MachineMemOperand::Flags MMOFlags =
+      TLI.getLoadMemOperandFlags(I, DAG.getDataLayout());
 
   SDValue Root;
   bool ConstantMemory = false;
   if (isVolatile)
     // Serialize volatile loads with other side effects.
     Root = getRoot();
   else if (NumValues > MaxParallelChains)
     Root = getMemoryRoot();
   else if (AA &&
            AA->pointsToConstantMemory(MemoryLocation(
                SV,
                LocationSize::precise(DAG.getDataLayout().getTypeStoreSize(Ty)),
                AAInfo))) {
     // Do not serialize (non-volatile) loads of constant memory with anything.
     Root = DAG.getEntryNode();
     ConstantMemory = true;
+    MMOFlags |= MachineMemOperand::MOInvariant;
+
+    // FIXME: pointsToConstantMemory probably does not imply dereferenceable,
+    // but the previous usage implied it did. Probably should check
+    // isDereferenceableAndAlignedPointer.
+    MMOFlags |= MachineMemOperand::MODereferenceable;
   } else {
     // Do not serialize non-volatile loads against each other.
     Root = DAG.getRoot();
   }
 
   SDLoc dl = getCurSDLoc();
 
   if (isVolatile)
     Root = TLI.prepareVolatileOrAtomicLoad(Root, dl, DAG);
 
   // An aggregate load cannot wrap around the address space, so offsets to its
   // parts don't wrap either.
   SDNodeFlags Flags;
   Flags.setNoUnsignedWrap(true);
 
   SmallVector<SDValue, 4> Values(NumValues);
   SmallVector<SDValue, 4> Chains(std::min(MaxParallelChains, NumValues));
   EVT PtrVT = Ptr.getValueType();
 
-  MachineMemOperand::Flags MMOFlags
-    = TLI.getLoadMemOperandFlags(I, DAG.getDataLayout());
-
   unsigned ChainI = 0;
   for (unsigned i = 0; i != NumValues; ++i, ++ChainI) {
     // Serializing loads here may result in excessive register pressure, and
     // TokenFactor places arbitrary choke points on the scheduler. SD scheduling
     // could recover a bit by hoisting nodes upward in the chain by recognizing
     // they are side-effect free or do not alias. The optimizer should really
     // avoid this case by converting large object/array copies to llvm.memcpy
     // (MaxParallelChains should always remain as failsafe).
case Intrinsic::memcpy: {
     Align DstAlign = MCI.getDestAlign().valueOrOne();
     Align SrcAlign = MCI.getSourceAlign().valueOrOne();
     Align Alignment = commonAlignment(DstAlign, SrcAlign);
     bool isVol = MCI.isVolatile();
     bool isTC = I.isTailCall() && isInTailCallPosition(I, DAG.getTarget());
     // FIXME: Support passing different dest/src alignments to the memcpy DAG
     // node.
     SDValue Root = isVol ? getRoot() : getMemoryRoot();
-    SDValue MC = DAG.getMemcpy(Root, sdl, Op1, Op2, Op3, Alignment, isVol,
-                               /* AlwaysInline */ false, isTC,
-                               MachinePointerInfo(I.getArgOperand(0)),
-                               MachinePointerInfo(I.getArgOperand(1)),
-                               I.getAAMetadata());
+    SDValue MC = DAG.getMemcpy(
+        Root, sdl, Op1, Op2, Op3, Alignment, isVol,
+        /* AlwaysInline */ false, isTC, MachinePointerInfo(I.getArgOperand(0)),
+        MachinePointerInfo(I.getArgOperand(1)), I.getAAMetadata(), AA);
     updateDAGForMaybeTailCall(MC);
     return;
   }
   case Intrinsic::memcpy_inline: {
     const auto &MCI = cast<MemCpyInlineInst>(I);
     SDValue Dst = getValue(I.getArgOperand(0));
     SDValue Src = getValue(I.getArgOperand(1));
     SDValue Size = getValue(I.getArgOperand(2));
     assert(isa<ConstantSDNode>(Size) && "memcpy_inline needs constant size");
     // @llvm.memcpy.inline defines 0 and 1 to both mean no alignment.
     Align DstAlign = MCI.getDestAlign().valueOrOne();
     Align SrcAlign = MCI.getSourceAlign().valueOrOne();
     Align Alignment = commonAlignment(DstAlign, SrcAlign);
     bool isVol = MCI.isVolatile();
     bool isTC = I.isTailCall() && isInTailCallPosition(I, DAG.getTarget());
     // FIXME: Support passing different dest/src alignments to the memcpy DAG
     // node.
-    SDValue MC = DAG.getMemcpy(getRoot(), sdl, Dst, Src, Size, Alignment, isVol,
-                               /* AlwaysInline */ true, isTC,
-                               MachinePointerInfo(I.getArgOperand(0)),
-                               MachinePointerInfo(I.getArgOperand(1)),
-                               I.getAAMetadata());
+    SDValue MC = DAG.getMemcpy(
+        getRoot(), sdl, Dst, Src, Size, Alignment, isVol,
+        /* AlwaysInline */ true, isTC, MachinePointerInfo(I.getArgOperand(0)),
+        MachinePointerInfo(I.getArgOperand(1)), I.getAAMetadata(), AA);
     updateDAGForMaybeTailCall(MC);
     return;
   }
   case Intrinsic::memset: {
     const auto &MSI = cast<MemSetInst>(I);
     SDValue Op1 = getValue(I.getArgOperand(0));
     SDValue Op2 = getValue(I.getArgOperand(1));
     SDValue Op3 = getValue(I.getArgOperand(2));
case Intrinsic::memmove: {
     bool isVol = MMI.isVolatile();
     bool isTC = I.isTailCall() && isInTailCallPosition(I, DAG.getTarget());
     // FIXME: Support passing different dest/src alignments to the memmove DAG
     // node.
     SDValue Root = isVol ? getRoot() : getMemoryRoot();
     SDValue MM = DAG.getMemmove(Root, sdl, Op1, Op2, Op3, Alignment, isVol,
                                 isTC, MachinePointerInfo(I.getArgOperand(0)),
                                 MachinePointerInfo(I.getArgOperand(1)),
-                                I.getAAMetadata());
+                                I.getAAMetadata(), AA);
     updateDAGForMaybeTailCall(MM);
     return;
   }
   case Intrinsic::memcpy_element_unordered_atomic: {
     const AtomicMemCpyInst &MI = cast<AtomicMemCpyInst>(I);
     SDValue Dst = getValue(MI.getRawDest());
     SDValue Src = getValue(MI.getRawSource());
     SDValue Length = getValue(MI.getLength());

llvm/lib/CodeGen/SplitKit.h

 /// - Mark the places where the new interval is entered using enterIntv*
 /// - Mark the ranges where the new interval is used with useIntv*
 /// - Mark the places where the interval is exited with exitIntv*.
 /// - Finish the current interval with closeIntv and repeat from 2.
 /// - Rewrite instructions with finish().
 ///
 class LLVM_LIBRARY_VISIBILITY SplitEditor {
   SplitAnalysis &SA;
-  AAResults &AA;
   LiveIntervals &LIS;
   VirtRegMap &VRM;
   MachineRegisterInfo &MRI;
   MachineDominatorTree &MDT;
   const TargetInstrInfo &TII;
   const TargetRegisterInfo &TRI;
   const MachineBlockFrequencyInfo &MBFI;
   VirtRegAuxInfo &VRAI;
private:
 
   SlotIndex buildSingleSubRegCopy(Register FromReg, Register ToReg,
       MachineBasicBlock &MB, MachineBasicBlock::iterator InsertBefore,
       unsigned SubIdx, LiveInterval &DestLI, bool Late, SlotIndex Def);
 
 public:
   /// Create a new SplitEditor for editing the LiveInterval analyzed by SA.
   /// Newly created intervals will be appended to newIntervals.
-  SplitEditor(SplitAnalysis &SA, AAResults &AA, LiveIntervals &LIS,
-              VirtRegMap &VRM, MachineDominatorTree &MDT,
-              MachineBlockFrequencyInfo &MBFI, VirtRegAuxInfo &VRAI);
+  SplitEditor(SplitAnalysis &SA, LiveIntervals &LIS, VirtRegMap &VRM,
+              MachineDominatorTree &MDT, MachineBlockFrequencyInfo &MBFI,
+              VirtRegAuxInfo &VRAI);
 
   /// reset - Prepare for a new split.
   void reset(LiveRangeEdit&, ComplementSpillMode = SM_Partition);
 
   /// Create a new virtual register and live interval.
   /// Return the interval index, starting from 1. Interval index 0 is the
   /// implicit complement interval.
   unsigned openIntv();

llvm/lib/CodeGen/SplitKit.cpp

void SplitAnalysis::analyze(const LiveInterval *li) {
   analyzeUses();
 }
 
 //===----------------------------------------------------------------------===//
 //                               Split Editor
 //===----------------------------------------------------------------------===//
 
 /// Create a new SplitEditor for editing the LiveInterval analyzed by SA.
-SplitEditor::SplitEditor(SplitAnalysis &SA, AliasAnalysis &AA,
-                         LiveIntervals &LIS, VirtRegMap &VRM,
+SplitEditor::SplitEditor(SplitAnalysis &SA, LiveIntervals &LIS, VirtRegMap &VRM,
                          MachineDominatorTree &MDT,
                          MachineBlockFrequencyInfo &MBFI, VirtRegAuxInfo &VRAI)
-    : SA(SA), AA(AA), LIS(LIS), VRM(VRM),
-      MRI(VRM.getMachineFunction().getRegInfo()), MDT(MDT),
-      TII(*VRM.getMachineFunction().getSubtarget().getInstrInfo()),
+    : SA(SA), LIS(LIS), VRM(VRM), MRI(VRM.getMachineFunction().getRegInfo()),
+      MDT(MDT), TII(*VRM.getMachineFunction().getSubtarget().getInstrInfo()),
       TRI(*VRM.getMachineFunction().getSubtarget().getRegisterInfo()),
       MBFI(MBFI), VRAI(VRAI), RegAssign(Allocator) {}
 
 void SplitEditor::reset(LiveRangeEdit &LRE, ComplementSpillMode SM) {
   Edit = &LRE;
   SpillMode = SM;
   OpenIdx = 0;
   RegAssign.clear();
   Values.clear();
 
   // Reset the LiveIntervalCalc instances needed for this spill mode.
   LICalc[0].reset(&VRM.getMachineFunction(), LIS.getSlotIndexes(), &MDT,
                   &LIS.getVNInfoAllocator());
   if (SpillMode)
     LICalc[1].reset(&VRM.getMachineFunction(), LIS.getSlotIndexes(), &MDT,
                     &LIS.getVNInfoAllocator());
 
-  // We don't need an AliasAnalysis since we will only be performing
-  // cheap-as-a-copy remats anyway.
-  Edit->anyRematerializable(nullptr);
+  Edit->anyRematerializable();
 }
 
 #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
 LLVM_DUMP_METHOD void SplitEditor::dump() const {
   if (RegAssign.empty()) {
     dbgs() << " empty\n";
     return;
   }
for (const LiveRange::Segment &S : LI->segments) {
       LLVM_DEBUG(dbgs() << "All defs dead: " << *MI);
       Dead.push_back(MI);
     }
   }
 
   if (Dead.empty())
     return;
 
-  Edit->eliminateDeadDefs(Dead, None, &AA);
+  Edit->eliminateDeadDefs(Dead, None);
 }
 
 void SplitEditor::forceRecomputeVNI(const VNInfo &ParentVNI) {
   // Fast-path for common case.
   if (!ParentVNI.isPHIDef()) {
     for (unsigned I = 0, E = Edit->size(); I != E; ++I)
       forceRecompute(I, ParentVNI);
     return;

llvm/lib/CodeGen/TargetInstrInfo.cpp

void TargetInstrInfo::genAlternativeCodeSequence(
   }
 
   assert(Prev && "Unknown pattern for machine combiner");
 
   reassociateOps(Root, *Prev, Pattern, InsInstrs, DelInstrs, InstIdxForVirtReg);
 }
 
 bool TargetInstrInfo::isReallyTriviallyReMaterializableGeneric(
-    const MachineInstr &MI, AAResults *AA) const {
+    const MachineInstr &MI) const {
   const MachineFunction &MF = *MI.getMF();
   const MachineRegisterInfo &MRI = MF.getRegInfo();
 
   // Remat clients assume operand 0 is the defined register.
   if (!MI.getNumOperands() || !MI.getOperand(0).isReg())
     return false;
   Register DefReg = MI.getOperand(0).getReg();
 
if (MI.isNotDuplicable() || MI.mayStore() || MI.mayRaiseFPException() ||
     return false;
 
   // Don't remat inline asm. We have no idea how expensive it is
   // even if it's side effect free.
   if (MI.isInlineAsm())
     return false;
 
   // Avoid instructions which load from potentially varying memory.
-  if (MI.mayLoad() && !MI.isDereferenceableInvariantLoad(AA))
+  if (MI.mayLoad() && !MI.isDereferenceableInvariantLoad())
     return false;
 
   // If any of the registers accessed are non-constant, conservatively assume
   // the instruction is not rematerializable.
   for (const MachineOperand &MO : MI.operands()) {
     if (!MO.isReg()) continue;
     Register Reg = MO.getReg();
     if (Reg == 0)

llvm/lib/Target/AMDGPU/GCNSchedStrategy.h

class GCNScheduleDAGMILive final : public ScheduleDAGMILive {
 
   DenseMap<MachineInstr *, GCNRPTracker::LiveRegSet> BBLiveInMap;
   DenseMap<MachineInstr *, GCNRPTracker::LiveRegSet> getBBLiveInMap() const;
 
   // Collect all trivially rematerializable VGPR instructions with a single def
   // and single use outside the defining block into RematerializableInsts.
   void collectRematerializableInstructions();
 
-  bool isTriviallyReMaterializable(const MachineInstr &MI, AAResults *AA);
+  bool isTriviallyReMaterializable(const MachineInstr &MI);
 
   // TODO: Should also attempt to reduce RP of SGPRs and AGPRs
   // Attempt to reduce RP of VGPR by sinking trivially rematerializable
   // instructions. Returns true if we were able to sink instruction(s).
   bool sinkTriviallyRematInsts(const GCNSubtarget &ST,
                                const TargetInstrInfo *TII);
 
   // Return current region pressure.

llvm/lib/Target/AMDGPU/GCNSchedStrategy.cpp

for (unsigned I = 0, E = MRI.getNumVirtRegs(); I != E; ++I) {
 
     // TODO: Handle AGPR and SGPR rematerialization
     if (!SRI->isVGPRClass(MRI.getRegClass(Reg)) || !MRI.hasOneDef(Reg) ||
         !MRI.hasOneNonDBGUse(Reg))
       continue;
 
     MachineOperand *Op = MRI.getOneDef(Reg);
     MachineInstr *Def = Op->getParent();
-    if (Op->getSubReg() != 0 || !isTriviallyReMaterializable(*Def, AA))
+    if (Op->getSubReg() != 0 || !isTriviallyReMaterializable(*Def))
       continue;
 
     MachineInstr *UseI = &*MRI.use_instr_nodbg_begin(Reg);
     if (Def->getParent() == UseI->getParent())
       continue;
 
     // We are only collecting defs that are defined in another block and are
     // live-through or used inside regions at MinOccupancy. This means that the
bool GCNScheduleDAGMILive::sinkTriviallyRematInsts(const GCNSubtarget &ST,
 
   SIMachineFunctionInfo &MFI = *MF.getInfo<SIMachineFunctionInfo>();
   MFI.increaseOccupancy(MF, ++MinOccupancy);
 
   return true;
 }
 
 // Copied from MachineLICM
-bool GCNScheduleDAGMILive::isTriviallyReMaterializable(const MachineInstr &MI,
-                                                       AAResults *AA) {
-  if (!TII->isTriviallyReMaterializable(MI, AA))
+bool GCNScheduleDAGMILive::isTriviallyReMaterializable(const MachineInstr &MI) {
+  if (!TII->isTriviallyReMaterializable(MI))
     return false;
 
   for (const MachineOperand &MO : MI.operands())
     if (MO.isReg() && MO.isUse() && MO.getReg().isVirtual())
       return false;
 
   return true;
 }

llvm/lib/Target/AMDGPU/SIInstrInfo.h

public:
   const SIRegisterInfo &getRegisterInfo() const {
     return RI;
   }
 
   const GCNSubtarget &getSubtarget() const {
     return ST;
   }
 
-  bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                         AAResults *AA) const override;
+  bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const override;
 
   bool isIgnorableUse(const MachineOperand &MO) const override;
 
   bool areLoadsFromSameBasePtr(SDNode *Load1, SDNode *Load2,
                                int64_t &Offset1,
                                int64_t &Offset2) const override;
 
   bool getMemOperandsWithOffsetWidth(

llvm/lib/Target/AMDGPU/SIInstrInfo.cpp

static bool nodesHaveSameOperandValue(SDNode *N0, SDNode* N1, unsigned OpName) {
   // MachineSDNode's operands, so we need to skip the result operand to get
   // the real index.
   --Op0Idx;
   --Op1Idx;
 
   return N0->getOperand(Op0Idx) == N1->getOperand(Op1Idx);
 }
 
-bool SIInstrInfo::isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                                    AAResults *AA) const {
+bool SIInstrInfo::isReallyTriviallyReMaterializable(
+    const MachineInstr &MI) const {
   if (isVOP1(MI) || isVOP2(MI) || isVOP3(MI) || isSDWA(MI) || isSALU(MI)) {
     // Normally VALU use of exec would block the rematerialization, but that
     // is OK in this case to have an implicit exec read as all VALU do.
     // We really want all of the generic logic for this except for this.
 
     // Another potential implicit use is mode register. The core logic of
     // the RA will not attempt rematerialization if mode is set anywhere
     // in the function, otherwise it is safe since mode is not changed.

llvm/lib/Target/ARM/ARMBaseInstrInfo.h

private:
 
   void expandMEMCPY(MachineBasicBlock::iterator) const;
 
   /// Identify instructions that can be folded into a MOVCC instruction, and
   /// return the defining instruction.
   MachineInstr *canFoldIntoMOVCC(Register Reg, const MachineRegisterInfo &MRI,
                                  const TargetInstrInfo *TII) const;
 
-  bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                         AAResults *AA) const override;
+  bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const override;
 
 private:
   /// Modeling special VFP / NEON fp MLA / MLS hazards.
 
   /// MLxEntryMap - Map fp MLA / MLS to the corresponding entry in the internal
   /// MLx table.
   DenseMap<unsigned, unsigned> MLxEntryMap;
 

llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp

MachineBasicBlock::iterator ARMBaseInstrInfo::insertOutlinedCall(
   return CallPt;
 }
 
 bool ARMBaseInstrInfo::shouldOutlineFromFunctionByDefault(
     MachineFunction &MF) const {
   return Subtarget.isMClass() && MF.getFunction().hasMinSize();
 }
 
-bool ARMBaseInstrInfo::isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                                         AAResults *AA) const {
+bool ARMBaseInstrInfo::isReallyTriviallyReMaterializable(
+    const MachineInstr &MI) const {
   // Try hard to rematerialize any VCTPs because if we spill P0, it will block
   // the tail predication conversion. This means that the element count
   // register has to be live for longer, but that has to be better than
   // spill/restore and VPT predication.
   return isVCTP(&MI) && !isPredicated(MI);
 }
 
 unsigned llvm::getBLXOpcode(const MachineFunction &MF) {

llvm/lib/Target/PowerPC/PPCInstrInfo.h

#endif
   // and clears nuw, nsw, and exact flags.
   void setSpecialOperandAttr(MachineInstr &MI, uint16_t Flags) const;
 
   bool isCoalescableExtInstr(const MachineInstr &MI,
                              Register &SrcReg, Register &DstReg,
                              unsigned &SubIdx) const override;
   unsigned isLoadFromStackSlot(const MachineInstr &MI,
                                int &FrameIndex) const override;
-  bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                         AAResults *AA) const override;
+  bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const override;
   unsigned isStoreToStackSlot(const MachineInstr &MI,
                               int &FrameIndex) const override;
 
   bool findCommutedOpIndices(const MachineInstr &MI, unsigned &SrcOpIdx1,
                              unsigned &SrcOpIdx2) const override;
 
   void insertNoop(MachineBasicBlock &MBB,
                   MachineBasicBlock::iterator MI) const override;

llvm/lib/Target/PowerPC/PPCInstrInfo.cpp

if (MI.getOperand(1).isImm() && !MI.getOperand(1).getImm() &&
       return MI.getOperand(0).getReg();
     }
   }
   return 0;
 }
 
 // For opcodes with the ReMaterializable flag set, this function is called to
 // verify the instruction is really rematable.
-bool PPCInstrInfo::isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                                     AliasAnalysis *AA) const {
+bool PPCInstrInfo::isReallyTriviallyReMaterializable(
+    const MachineInstr &MI) const {
   switch (MI.getOpcode()) {
   default:
     // This function should only be called for opcodes with the ReMaterializable
     // flag set.
     llvm_unreachable("Unknown rematerializable operation!");
     break;
   case PPC::LI:
   case PPC::LI8:

llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.h

 class WebAssemblyInstrInfo final : public WebAssemblyGenInstrInfo {
   const WebAssemblyRegisterInfo RI;
 
 public:
   explicit WebAssemblyInstrInfo(const WebAssemblySubtarget &STI);
 
   const WebAssemblyRegisterInfo &getRegisterInfo() const { return RI; }
 
-  bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                         AAResults *AA) const override;
+  bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const override;
 
   void copyPhysReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
                    const DebugLoc &DL, MCRegister DestReg, MCRegister SrcReg,
                    bool KillSrc) const override;
   MachineInstr *commuteInstructionImpl(MachineInstr &MI, bool NewMI,
                                        unsigned OpIdx1,
                                        unsigned OpIdx2) const override;
 

llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.cpp

 
 WebAssemblyInstrInfo::WebAssemblyInstrInfo(const WebAssemblySubtarget &STI)
     : WebAssemblyGenInstrInfo(WebAssembly::ADJCALLSTACKDOWN,
                               WebAssembly::ADJCALLSTACKUP,
                               WebAssembly::CATCHRET),
       RI(STI.getTargetTriple()) {}
 
 bool WebAssemblyInstrInfo::isReallyTriviallyReMaterializable(
-    const MachineInstr &MI, AAResults *AA) const {
+    const MachineInstr &MI) const {
   switch (MI.getOpcode()) {
   case WebAssembly::CONST_I32:
   case WebAssembly::CONST_I64:
   case WebAssembly::CONST_F32:
   case WebAssembly::CONST_F64:
     // isReallyTriviallyReMaterializableGeneric misses these because of the
     // ARGUMENTS implicit def, so we manualy override it here.
     return true;

llvm/lib/Target/WebAssembly/WebAssemblyRegStackify.cpp

 namespace {
 class WebAssemblyRegStackify final : public MachineFunctionPass {
   StringRef getPassName() const override {
     return "WebAssembly Register Stackify";
   }
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesCFG();
-    AU.addRequired<AAResultsWrapperPass>();
     AU.addRequired<MachineDominatorTree>();
     AU.addRequired<LiveIntervals>();
     AU.addPreserved<MachineBlockFrequencyInfo>();
     AU.addPreserved<SlotIndexes>();
     AU.addPreserved<LiveIntervals>();
     AU.addPreservedID(LiveVariablesID);
     AU.addPreserved<MachineDominatorTree>();
     MachineFunctionPass::getAnalysisUsage(AU);
static void queryCallee(const MachineInstr &MI, bool &Read, bool &Write,
   // Assume the worst.
   Write = true;
   Read = true;
   Effects = true;
 }
 
 // Determine whether MI reads memory, writes memory, has side effects,
 // and/or uses the stack pointer value.
-static void query(const MachineInstr &MI, AliasAnalysis &AA, bool &Read,
-                  bool &Write, bool &Effects, bool &StackPointer) {
+static void query(const MachineInstr &MI, bool &Read, bool &Write,
+                  bool &Effects, bool &StackPointer) {
   assert(!MI.isTerminator());
 
   if (MI.isDebugInstr() || MI.isPosition())
     return;
 
   // Check for loads.
-  if (MI.mayLoad() && !MI.isDereferenceableInvariantLoad(&AA))
+  if (MI.mayLoad() && !MI.isDereferenceableInvariantLoad())
     Read = true;
 
   // Check for stores.
   if (MI.mayStore()) {
     Write = true;
   } else if (MI.hasOrderedMemoryRef()) {
     switch (MI.getOpcode()) {
     case WebAssembly::DIV_S_I32:
static void query(const MachineInstr &MI, bool &Read, bool &Write,
 
   // Analyze calls.
   if (MI.isCall()) {
     queryCallee(MI, Read, Write, Effects, StackPointer);
   }
 }
 
 // Test whether Def is safe and profitable to rematerialize.
-static bool shouldRematerialize(const MachineInstr &Def, AliasAnalysis &AA,
+static bool shouldRematerialize(const MachineInstr &Def,
                                 const WebAssemblyInstrInfo *TII) {
-  return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def, &AA);
+  return Def.isAsCheapAsAMove() && TII->isTriviallyReMaterializable(Def);
 }
 
 // Identify the definition for this register at this point. This is a
 // generalization of MachineRegisterInfo::getUniqueVRegDef that uses
 // LiveIntervals to handle complex cases.
 static MachineInstr *getVRegDef(unsigned Reg, const MachineInstr *Insert,
                                 const MachineRegisterInfo &MRI,
                                 const LiveIntervals &LIS) {

 }
 
 // Test whether it's safe to move Def to just before Insert.
 // TODO: Compute memory dependencies in a way that doesn't require always
 // walking the block.
 // TODO: Compute memory dependencies in a way that uses AliasAnalysis to be
 // more precise.
 static bool isSafeToMove(const MachineOperand *Def, const MachineOperand *Use,
-                         const MachineInstr *Insert, AliasAnalysis &AA,
+                         const MachineInstr *Insert,
                          const WebAssemblyFunctionInfo &MFI,
                          const MachineRegisterInfo &MRI) {
   const MachineInstr *DefI = Def->getParent();
   const MachineInstr *UseI = Use->getParent();
   assert(DefI->getParent() == Insert->getParent());
   assert(UseI->getParent() == Insert->getParent());
 
   // The first def of a multivalue instruction can be stackified by moving,
for (const MachineOperand &MO : DefI->operands()) {
     // If one of the operands isn't in SSA form, it has different values at
     // different times, and we need to make sure we don't move our use across
     // a different def.
     if (!MO.isDef() && !MRI.hasOneDef(Reg))
       MutableRegisters.push_back(Reg);
   }
 
   bool Read = false, Write = false, Effects = false, StackPointer = false;
-  query(*DefI, AA, Read, Write, Effects, StackPointer);
+  query(*DefI, Read, Write, Effects, StackPointer);
 
   // If the instruction does not access memory and has no side effects, it has
   // no additional dependencies.
   bool HasMutableRegisters = !MutableRegisters.empty();
   if (!Read && !Write && !Effects && !StackPointer && !HasMutableRegisters)
     return true;
 
   // Scan through the intervening instructions between DefI and Insert.
   MachineBasicBlock::const_iterator D(DefI), I(Insert);
   for (--I; I != D; --I) {
     bool InterveningRead = false;
     bool InterveningWrite = false;
     bool InterveningEffects = false;
     bool InterveningStackPointer = false;
-    query(*I, AA, InterveningRead, InterveningWrite, InterveningEffects,
+    query(*I, InterveningRead, InterveningWrite, InterveningEffects,
           InterveningStackPointer);
     if (Effects && InterveningEffects)
       return false;
     if (Read && InterveningWrite)
       return false;
     if (Write && (InterveningRead || InterveningWrite))
       return false;
     if (StackPointer && InterveningStackPointer)
LLVM_DEBUG(dbgs() << "********** Register Stackifying **********\n"
                        "********** Function: "
                     << MF.getName() << '\n');
 
   bool Changed = false;
   MachineRegisterInfo &MRI = MF.getRegInfo();
   WebAssemblyFunctionInfo &MFI = *MF.getInfo<WebAssemblyFunctionInfo>();
   const auto *TII = MF.getSubtarget<WebAssemblySubtarget>().getInstrInfo();
   const auto *TRI = MF.getSubtarget<WebAssemblySubtarget>().getRegisterInfo();
-  AliasAnalysis &AA = getAnalysis<AAResultsWrapperPass>().getAAResults();
   auto &MDT = getAnalysis<MachineDominatorTree>();
   auto &LIS = getAnalysis<LiveIntervals>();
 
   // Walk the instructions from the bottom up. Currently we don't look past
   // block boundaries, and the blocks aren't ordered so the block visitation
   // order isn't significant, but we may want to change this in the future.
   for (MachineBasicBlock &MBB : MF) {
     // Don't use a range-based for loop, because we modify the list as we're
for (auto MII = MBB.rbegin(); MII != MBB.rend(); ++MII) {
 
         // Decide which strategy to take. Prefer to move a single-use value
         // over cloning it, and prefer cloning over introducing a tee.
         // For moving, we require the def to be in the same block as the use;
         // this makes things simpler (LiveIntervals' handleMove function only
         // supports intra-block moves) and it's MachineSink's job to catch all
         // the sinking opportunities anyway.
         bool SameBlock = DefI->getParent() == &MBB;
-        bool CanMove = SameBlock &&
-                       isSafeToMove(Def, &Use, Insert, AA, MFI, MRI) &&
+        bool CanMove = SameBlock && isSafeToMove(Def, &Use, Insert, MFI, MRI) &&
                        !TreeWalker.isOnStack(Reg);
         if (CanMove && hasOneUse(Reg, DefI, MRI, MDT, LIS)) {
           Insert = moveForSingleUse(Reg, Use, DefI, MBB, Insert, LIS, MFI, MRI);
 
           // If we are removing the frame base reg completely, remove the debug
           // info as well.
           // TODO: Encode this properly as a stackified value.
           if (MFI.isFrameBaseVirtual() && MFI.getFrameBaseVreg() == Reg)
             MFI.clearFrameBaseVreg();
-        } else if (shouldRematerialize(*DefI, AA, TII)) {
+        } else if (shouldRematerialize(*DefI, TII)) {
           Insert =
               rematerializeCheapDef(Reg, Use, *DefI, MBB, Insert->getIterator(),
                                     LIS, MFI, MRI, TII, TRI);
         } else if (CanMove && oneUseDominatesOtherUses(Reg, Use, MBB, MRI, MDT,
                                                        LIS, MFI)) {
           Insert = moveAndTeeForMultiUse(Reg, Use, DefI, MBB, Insert, LIS, MFI,
                                          MRI, TII);
         } else {

llvm/lib/Target/X86/X86InstrInfo.h

unsigned isStoreToStackSlot(const MachineInstr &MI,
                               int &FrameIndex,
                               unsigned &MemBytes) const override;
   /// isStoreToStackSlotPostFE - Check for post-frame ptr elimination
   /// stack locations as well.  This uses a heuristic so it isn't
   /// reliable for correctness.
   unsigned isStoreToStackSlotPostFE(const MachineInstr &MI,
                                     int &FrameIndex) const override;
 
-  bool isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                         AAResults *AA) const override;
+  bool isReallyTriviallyReMaterializable(const MachineInstr &MI) const override;
   void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
                      Register DestReg, unsigned SubIdx,
                      const MachineInstr &Orig,
                      const TargetRegisterInfo &TRI) const override;
 
   /// Given an operand within a MachineInstr, insert preceding code to put it
   /// into the right format for a particular kind of LEA instruction. This may
   /// involve using an appropriate super-register instead (with an implicit use

llvm/lib/Target/X86/X86InstrInfo.cpp

for (MachineRegisterInfo::def_instr_iterator I = MRI.def_instr_begin(BaseReg),
     if (DefMI->getOpcode() != X86::MOVPC32r)
       return false;
     assert(!isPICBase && "More than one PIC base?");
     isPICBase = true;
   }
   return isPICBase;
 }
 
-bool X86InstrInfo::isReallyTriviallyReMaterializable(const MachineInstr &MI,
-                                                     AAResults *AA) const {
+bool X86InstrInfo::isReallyTriviallyReMaterializable(
+    const MachineInstr &MI) const {
   switch (MI.getOpcode()) {
   default:
     // This function should only be called for opcodes with the ReMaterializable
     // flag set.
     llvm_unreachable("Unknown rematerializable operation!");
     break;
 
   case X86::LOAD_STACK_GUARD:
bool X86InstrInfo::isReallyTriviallyReMaterializable(
   case X86::VMOVUPSZ128rm_NOVLX:
   case X86::VMOVUPSZ256rm_NOVLX:
   case X86::VMOVUPSZrm: {
     // Loads from constant pools are trivially rematerializable.
     if (MI.getOperand(1 + X86::AddrBaseReg).isReg() &&
         MI.getOperand(1 + X86::AddrScaleAmt).isImm() &&
         MI.getOperand(1 + X86::AddrIndexReg).isReg() &&
         MI.getOperand(1 + X86::AddrIndexReg).getReg() == 0 &&
-        MI.isDereferenceableInvariantLoad(AA)) {
+        MI.isDereferenceableInvariantLoad()) {
       Register BaseReg = MI.getOperand(1 + X86::AddrBaseReg).getReg();
       if (BaseReg == 0 || BaseReg == X86::RIP)
         return true;
       // Allow re-materialization of PIC load.
       if (!ReMatPICStubLoad && MI.getOperand(1 + X86::AddrDisp).isGlobal())
         return false;
       const MachineFunction &MF = *MI.getParent()->getParent();
       const MachineRegisterInfo &MRI = MF.getRegInfo();

llvm/test/CodeGen/AArch64/GlobalISel/gisel-commandline-option.ll

 ; RUN:   --debugify-and-strip-all-safe=0 \
 ; RUN:   -verify-machineinstrs=0 | FileCheck %s --check-prefix DISABLED
 
 ; RUN: llc -mtriple=aarch64-- -fast-isel=0 -global-isel=false \
 ; RUN:   --debugify-and-strip-all-safe=0 \
 ; RUN:   -debug-pass=Structure %s -o /dev/null 2>&1 -verify-machineinstrs=0 \
 ; RUN:   | FileCheck %s --check-prefix DISABLED
 
+; ENABLED: Safe Stack instrumentation pass
+
+; ENABLED-O1: Basic Alias Analysis (stateless AA impl)
+; ENABLED-O1-NEXT: Function Alias Analysis Results
 ; ENABLED:       IRTranslator
 ; VERIFY-NEXT:   Verify generated machine code
 ; ENABLED-NEXT:  Analysis for ComputingKnownBits
 ; ENABLED-O1-NEXT:  MachineDominator Tree Construction
 ; ENABLED-O1-NEXT:  Analysis containing CSE Info
 ; ENABLED-O1-NEXT:  PreLegalizerCombiner
 ; VERIFY-O0-NEXT:  AArch64O0PreLegalizerCombiner
 ; VERIFY-NEXT:   Verify generated machine code
-; ENABLED-O1-NEXT: Basic Alias Analysis (stateless AA impl)
-; ENABLED-O1-NEXT: Function Alias Analysis Results
 ; ENABLED-O1-NEXT: LoadStoreOpt
 ; VERIFY-O0-NEXT:  Analysis containing CSE Info
 ; ENABLED-NEXT:  Legalizer
 ; VERIFY-NEXT:   Verify generated machine code
 ; ENABLED:  RegBankSelect
 ; VERIFY-NEXT:   Verify generated machine code
 ; ENABLED-NEXT:  Localizer
 ; VERIFY-O0-NEXT:   Verify generated machine code

llvm/test/CodeGen/AArch64/arm64-memcpy-inline.ll

; CHECK-DAG: str [[REG2]],
   call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 getelementptr inbounds (%struct.x, %struct.x* @dst, i32 0, i32 0), i8* align 8 getelementptr inbounds (%struct.x, %struct.x* @src, i32 0, i32 0), i32 11, i1 false)
   ret i32 0
 }
 
 define void @t1(i8* nocapture %C) nounwind {
 entry:
 ; CHECK-LABEL: t1:
 ; CHECK: ldr [[DEST:q[0-9]+]], [x[[BASEREG]]]
+; CHECK: str [[DEST:q[0-9]+]], [x0]
 ; CHECK: ldur [[DEST:q[0-9]+]], [x[[BASEREG:[0-9]+]], #15]
 ; CHECK: stur [[DEST:q[0-9]+]], [x0, #15]
-; CHECK: str [[DEST:q[0-9]+]], [x0]
   tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %C, i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str1, i64 0, i64 0), i64 31, i1 false)
   ret void
 }
 
 define void @t2(i8* nocapture %C) nounwind {
 entry:
 ; CHECK-LABEL: t2:
 ; CHECK: mov [[REG3:w[0-9]+]]
 ; CHECK: movk [[REG3]],
 ; CHECK: str [[REG3]], [x0, #32]
 ; CHECK: ldp [[DEST1:q[0-9]+]], [[DEST2:q[0-9]+]], [x{{[0-9]+}}]
 ; CHECK: stp [[DEST1]], [[DEST2]], [x0]
   tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %C, i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str2, i64 0, i64 0), i64 36, i1 false)
   ret void
 }
 
 define void @t3(i8* nocapture %C) nounwind {
 entry:
 ; CHECK-LABEL: t3:
 ; CHECK: ldr [[DEST:q[0-9]+]], [x[[BASEREG]]]
+; CHECK: str [[DEST]], [x0]
 ; CHECK: ldr [[REG4:x[0-9]+]], [x[[BASEREG:[0-9]+]], #16]
 ; CHECK: str [[REG4]], [x0, #16]
-; CHECK: str [[DEST]], [x0]
   tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %C, i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str3, i64 0, i64 0), i64 24, i1 false)
   ret void
 }
 
 define void @t4(i8* nocapture %C) nounwind {
 entry:
 ; CHECK-LABEL: t4:
 ; CHECK: mov [[REG5:w[0-9]+]], #32

llvm/test/CodeGen/AMDGPU/GlobalISel/function-returns.ll

define <5 x i32> @v5i32_func_void() #0 {
   %val = load volatile <5 x i32>, <5 x i32> addrspace(1)* undef
   ret <5 x i32> %val
 }
 
 define <8 x i32> @v8i32_func_void() #0 {
   ; CHECK-LABEL: name: v8i32_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<8 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<8 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[LOAD]](p1) :: (load (<8 x s32>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<8 x s32>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
   ; CHECK-NEXT:   $vgpr6 = COPY [[UV6]](s32)
   ; CHECK-NEXT:   $vgpr7 = COPY [[UV7]](s32)
   ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7
   %ptr = load volatile <8 x i32> addrspace(1)*, <8 x i32> addrspace(1)* addrspace(4)* undef
   %val = load <8 x i32>, <8 x i32> addrspace(1)* %ptr
   ret <8 x i32> %val
 }
 
 define <16 x i32> @v16i32_func_void() #0 {
   ; CHECK-LABEL: name: v16i32_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<16 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<16 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<16 x s32>) = G_LOAD [[LOAD]](p1) :: (load (<16 x s32>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32), [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32), [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<16 x s32>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
define <16 x i32> @v16i32_func_void() #0 {
   %val = load <16 x i32>, <16 x i32> addrspace(1)* %ptr
   ret <16 x i32> %val
 }
 
 define <32 x i32> @v32i32_func_void() #0 {
   ; CHECK-LABEL: name: v32i32_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<32 x s32>) = G_LOAD [[LOAD]](p1) :: (load (<32 x s32>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32), [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32), [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32), [[UV16:%[0-9]+]]:_(s32), [[UV17:%[0-9]+]]:_(s32), [[UV18:%[0-9]+]]:_(s32), [[UV19:%[0-9]+]]:_(s32), [[UV20:%[0-9]+]]:_(s32), [[UV21:%[0-9]+]]:_(s32), [[UV22:%[0-9]+]]:_(s32), [[UV23:%[0-9]+]]:_(s32), [[UV24:%[0-9]+]]:_(s32), [[UV25:%[0-9]+]]:_(s32), [[UV26:%[0-9]+]]:_(s32), [[UV27:%[0-9]+]]:_(s32), [[UV28:%[0-9]+]]:_(s32), [[UV29:%[0-9]+]]:_(s32), [[UV30:%[0-9]+]]:_(s32), [[UV31:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<32 x s32>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
define <2 x i64> @v2i64_func_void() #0 {
   %val = load <2 x i64>, <2 x i64> addrspace(1)* undef
   ret <2 x i64> %val
 }
 
 define <3 x i64> @v3i64_func_void() #0 {
   ; CHECK-LABEL: name: v3i64_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<3 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<3 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<3 x s64>) = G_LOAD [[LOAD]](p1) :: (load (<3 x s64>) from %ir.ptr, align 32, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<3 x s64>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
   ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5
   %ptr = load volatile <3 x i64> addrspace(1)*, <3 x i64> addrspace(1)* addrspace(4)* undef
   %val = load <3 x i64>, <3 x i64> addrspace(1)* %ptr
   ret <3 x i64> %val
 }
 
 define <4 x i64> @v4i64_func_void() #0 {
   ; CHECK-LABEL: name: v4i64_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<4 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<4 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<4 x s64>) = G_LOAD [[LOAD]](p1) :: (load (<4 x s64>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<4 x s64>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
   ; CHECK-NEXT:   $vgpr6 = COPY [[UV6]](s32)
   ; CHECK-NEXT:   $vgpr7 = COPY [[UV7]](s32)
   ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7
   %ptr = load volatile <4 x i64> addrspace(1)*, <4 x i64> addrspace(1)* addrspace(4)* undef
   %val = load <4 x i64>, <4 x i64> addrspace(1)* %ptr
   ret <4 x i64> %val
 }
 
 define <5 x i64> @v5i64_func_void() #0 {
   ; CHECK-LABEL: name: v5i64_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<5 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<5 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<5 x s64>) = G_LOAD [[LOAD]](p1) :: (load (<5 x s64>) from %ir.ptr, align 64, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<5 x s64>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
   ; CHECK-NEXT:   $vgpr6 = COPY [[UV6]](s32)
   ; CHECK-NEXT:   $vgpr7 = COPY [[UV7]](s32)
   ; CHECK-NEXT:   $vgpr8 = COPY [[UV8]](s32)
   ; CHECK-NEXT:   $vgpr9 = COPY [[UV9]](s32)
   ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9
   %ptr = load volatile <5 x i64> addrspace(1)*, <5 x i64> addrspace(1)* addrspace(4)* undef
   %val = load <5 x i64>, <5 x i64> addrspace(1)* %ptr
   ret <5 x i64> %val
 }
 
 define <8 x i64> @v8i64_func_void() #0 {
   ; CHECK-LABEL: name: v8i64_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<8 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<8 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<8 x s64>) = G_LOAD [[LOAD]](p1) :: (load (<8 x s64>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32), [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32), [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<8 x s64>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
define <8 x i64> @v8i64_func_void() #0 {
   %val = load <8 x i64>, <8 x i64> addrspace(1)* %ptr
   ret <8 x i64> %val
 }
 
 define <16 x i64> @v16i64_func_void() #0 {
   ; CHECK-LABEL: name: v16i64_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<16 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<16 x i64> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<16 x s64>) = G_LOAD [[LOAD]](p1) :: (load (<16 x s64>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32), [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32), [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32), [[UV16:%[0-9]+]]:_(s32), [[UV17:%[0-9]+]]:_(s32), [[UV18:%[0-9]+]]:_(s32), [[UV19:%[0-9]+]]:_(s32), [[UV20:%[0-9]+]]:_(s32), [[UV21:%[0-9]+]]:_(s32), [[UV22:%[0-9]+]]:_(s32), [[UV23:%[0-9]+]]:_(s32), [[UV24:%[0-9]+]]:_(s32), [[UV25:%[0-9]+]]:_(s32), [[UV26:%[0-9]+]]:_(s32), [[UV27:%[0-9]+]]:_(s32), [[UV28:%[0-9]+]]:_(s32), [[UV29:%[0-9]+]]:_(s32), [[UV30:%[0-9]+]]:_(s32), [[UV31:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<16 x s64>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](s32)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](s32)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](s32)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](s32)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](s32)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](s32)
define <4 x half> @v4f16_func_void() #0 {
   %val = load <4 x half>, <4 x half> addrspace(1)* undef
   ret <4 x half> %val
 }
 
 define <5 x i16> @v5i16_func_void() #0 {
   ; CHECK-LABEL: name: v5i16_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<5 x i16> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<5 x i16> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<5 x s16>) = G_LOAD [[LOAD]](p1) :: (load (<5 x s16>) from %ir.ptr, align 16, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16), [[UV2:%[0-9]+]]:_(s16), [[UV3:%[0-9]+]]:_(s16), [[UV4:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[LOAD1]](<5 x s16>)
   ; CHECK-NEXT:   [[DEF1:%[0-9]+]]:_(s16) = G_IMPLICIT_DEF
   ; CHECK-NEXT:   [[BUILD_VECTOR:%[0-9]+]]:_(<6 x s16>) = G_BUILD_VECTOR [[UV]](s16), [[UV1]](s16), [[UV2]](s16), [[UV3]](s16), [[UV4]](s16), [[DEF1]](s16)
   ; CHECK-NEXT:   [[UV5:%[0-9]+]]:_(<2 x s16>), [[UV6:%[0-9]+]]:_(<2 x s16>), [[UV7:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[BUILD_VECTOR]](<6 x s16>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV5]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV6]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV7]](<2 x s16>)
   ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2
   %ptr = load volatile <5 x i16> addrspace(1)*, <5 x i16> addrspace(1)* addrspace(4)* undef
   %val = load <5 x i16>, <5 x i16> addrspace(1)* %ptr
   ret <5 x i16> %val
 }
 
 define <8 x i16> @v8i16_func_void() #0 {
   ; CHECK-LABEL: name: v8i16_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<8 x i16> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<8 x i16> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<8 x s16>) = G_LOAD [[LOAD]](p1) :: (load (<8 x s16>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>), [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[LOAD1]](<8 x s16>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](<2 x s16>)
   ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3
   %ptr = load volatile <8 x i16> addrspace(1)*, <8 x i16> addrspace(1)* addrspace(4)* undef
   %val = load <8 x i16>, <8 x i16> addrspace(1)* %ptr
   ret <8 x i16> %val
 }
 
 define <16 x i16> @v16i16_func_void() #0 {
   ; CHECK-LABEL: name: v16i16_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<16 x i16> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<16 x i16> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<16 x s16>) = G_LOAD [[LOAD]](p1) :: (load (<16 x s16>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>), [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>), [[UV4:%[0-9]+]]:_(<2 x s16>), [[UV5:%[0-9]+]]:_(<2 x s16>), [[UV6:%[0-9]+]]:_(<2 x s16>), [[UV7:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[LOAD1]](<16 x s16>)
   ; CHECK-NEXT:   $vgpr0 = COPY [[UV]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr1 = COPY [[UV1]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr2 = COPY [[UV2]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr3 = COPY [[UV3]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr4 = COPY [[UV4]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr5 = COPY [[UV5]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr6 = COPY [[UV6]](<2 x s16>)
   ; CHECK-NEXT:   $vgpr7 = COPY [[UV7]](<2 x s16>)
   ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7
   %ptr = load volatile <16 x i16> addrspace(1)*, <16 x i16> addrspace(1)* addrspace(4)* undef
   %val = load <16 x i16>, <16 x i16> addrspace(1)* %ptr
   ret <16 x i16> %val
 }
 
 define <16 x i8> @v16i8_func_void() #0 {
   ; CHECK-LABEL: name: v16i8_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<16 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<16 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<16 x s8>) = G_LOAD [[LOAD]](p1) :: (load (<16 x s8>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8), [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8), [[UV8:%[0-9]+]]:_(s8), [[UV9:%[0-9]+]]:_(s8), [[UV10:%[0-9]+]]:_(s8), [[UV11:%[0-9]+]]:_(s8), [[UV12:%[0-9]+]]:_(s8), [[UV13:%[0-9]+]]:_(s8), [[UV14:%[0-9]+]]:_(s8), [[UV15:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[LOAD1]](<16 x s8>)
   ; CHECK-NEXT:   [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
   ; CHECK-NEXT:   [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
   ; CHECK-NEXT:   [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
   ; CHECK-NEXT:   [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
   ; CHECK-NEXT:   [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s8)
   ; CHECK-NEXT:   [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s8)
define <3 x i8> @v3i8_func_void() #0 {
   %val = load <3 x i8>, <3 x i8> addrspace(1)* undef
   ret <3 x i8> %val
 }
 
 define <4  x i8> @v4i8_func_void() #0 {
   ; CHECK-LABEL: name: v4i8_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<4 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<4 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<4 x s8>) = G_LOAD [[LOAD]](p1) :: (load (<4 x s8>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[LOAD1]](<4 x s8>)
   ; CHECK-NEXT:   [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
   ; CHECK-NEXT:   [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
   ; CHECK-NEXT:   [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
   ; CHECK-NEXT:   [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
   ; CHECK-NEXT:   [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ANYEXT]](s16)
   ; CHECK-NEXT:   $vgpr0 = COPY [[ANYEXT4]](s32)

 
 define <33 x i32> @v33i32_func_void() #0 {
   ; CHECK-LABEL: name: v33i32_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   liveins: $vgpr0
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `<33 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `<33 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<33 x s32>) = G_LOAD [[LOAD]](p1) :: (load (<33 x s32>) from %ir.ptr, align 256, addrspace 1)
   ; CHECK-NEXT:   G_STORE [[LOAD1]](<33 x s32>), [[COPY]](p5) :: (store (<33 x s32>), align 256, addrspace 5)
   ; CHECK-NEXT:   SI_RETURN
   %ptr = load volatile <33 x i32> addrspace(1)*, <33 x i32> addrspace(1)* addrspace(4)* undef
   %val = load <33 x i32>, <33 x i32> addrspace(1)* %ptr
   ret <33 x i32> %val
 }
 

 
 define { <32 x i32>, i32 } @struct_v32i32_i32_func_void() #0 {
   ; CHECK-LABEL: name: struct_v32i32_i32_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   liveins: $vgpr0
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `{ <32 x i32>, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `{ <32 x i32>, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<32 x s32>) = G_LOAD [[LOAD]](p1) :: (load (<32 x s32>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 128
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[LOAD]], [[C]](s64)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32) from %ir.ptr + 128, align 128, addrspace 1)
   ; CHECK-NEXT:   G_STORE [[LOAD1]](<32 x s32>), [[COPY]](p5) :: (store (<32 x s32>), addrspace 5)
   ; CHECK-NEXT:   [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 128
   ; CHECK-NEXT:   [[PTR_ADD1:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C1]](s32)
   ; CHECK-NEXT:   G_STORE [[LOAD2]](s32), [[PTR_ADD1]](p5) :: (store (s32), align 128, addrspace 5)
   ; CHECK-NEXT:   SI_RETURN
   %ptr = load volatile { <32 x i32>, i32 } addrspace(1)*, { <32 x i32>, i32 } addrspace(1)* addrspace(4)* undef
   %val = load { <32 x i32>, i32 }, { <32 x i32>, i32 } addrspace(1)* %ptr
   ret { <32 x i32>, i32 }%val
 }
 
 define { i32, <32 x i32> } @struct_i32_v32i32_func_void() #0 {
   ; CHECK-LABEL: name: struct_i32_v32i32_func_void
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   liveins: $vgpr0
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile load (p1) from `{ i32, <32 x i32> } addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (volatile dereferenceable invariant load (p1) from `{ i32, <32 x i32> } addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[LOAD]](p1) :: (load (s32) from %ir.ptr, align 128, addrspace 1)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 128
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[LOAD]], [[C]](s64)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(<32 x s32>) = G_LOAD [[PTR_ADD]](p1) :: (load (<32 x s32>) from %ir.ptr + 128, addrspace 1)
   ; CHECK-NEXT:   G_STORE [[LOAD1]](s32), [[COPY]](p5) :: (store (s32), align 128, addrspace 5)
   ; CHECK-NEXT:   [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 128
   ; CHECK-NEXT:   [[PTR_ADD1:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C1]](s32)
   ; CHECK-NEXT:   G_STORE [[LOAD2]](<32 x s32>), [[PTR_ADD1]](p5) :: (store (<32 x s32>), addrspace 5)

llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-amdgpu_vs.ll

 define amdgpu_vs void @test_ptr2_inreg(i32 addrspace(4)* inreg %arg0) {
   ; CHECK-LABEL: name: test_ptr2_inreg
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   liveins: $sgpr2, $sgpr3
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(s32) = COPY $sgpr2
   ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $sgpr3
   ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p4) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[MV]](p4) :: (volatile load (s32) from %ir.arg0, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[MV]](p4) :: (volatile dereferenceable invariant load (s32) from %ir.arg0, addrspace 4)
   ; CHECK-NEXT:   S_ENDPGM 0
   %tmp0 = load volatile i32, i32 addrspace(4)* %arg0
   ret void
 }
 
 define amdgpu_vs void @test_sgpr_alignment0(float inreg %arg0, i32 addrspace(4)* inreg %arg1) {
   ; CHECK-LABEL: name: test_sgpr_alignment0
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   liveins: $sgpr2, $sgpr3, $sgpr4
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(s32) = COPY $sgpr2
   ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $sgpr3
   ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $sgpr4
   ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p4) = G_MERGE_VALUES [[COPY1]](s32), [[COPY2]](s32)
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[MV]](p4) :: (volatile load (s32) from %ir.arg1, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[MV]](p4) :: (volatile dereferenceable invariant load (s32) from %ir.arg1, addrspace 4)
   ; CHECK-NEXT:   G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.exp), 32, 15, [[COPY]](s32), [[DEF]](s32), [[DEF]](s32), [[DEF]](s32), 0, 0
   ; CHECK-NEXT:   S_ENDPGM 0
   %tmp0 = load volatile i32, i32 addrspace(4)* %arg1
   call void @llvm.amdgcn.exp.f32(i32 32, i32 15, float %arg0, float undef, float undef, float undef, i1 false, i1 false) #0
   ret void
 }
 
 define amdgpu_vs void @test_order(float inreg %arg0, float inreg %arg1, float %arg2, float %arg3) {

llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-call-non-fixed.ll

define amdgpu_gfx void @test_gfx_call_external_void_func_i32_imm_inreg(i32 inreg) #0 {
   call amdgpu_gfx void @external_gfx_void_func_i32_inreg(i32 inreg 42)
   ret void
 }
 
 define amdgpu_gfx void @test_gfx_call_external_void_func_struct_i8_i32() #0 {
   ; CHECK-LABEL: name: test_gfx_call_external_void_func_struct_i8_i32
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s8) = G_LOAD [[LOAD]](p1) :: (load (s8) from %ir.ptr0, align 4, addrspace 1)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[LOAD]], [[C]](s64)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32) from %ir.ptr0 + 4, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_gfx_void_func_struct_i8_i32
   ; CHECK-NEXT:   [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[LOAD1]](s8)
   ; CHECK-NEXT:   [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ANYEXT]](s16)
define amdgpu_gfx void @test_gfx_call_external_void_func_struct_i8_i32() #0 {
   call amdgpu_gfx void @external_gfx_void_func_struct_i8_i32({ i8, i32 } %val)
   ret void
 }
 
 define amdgpu_gfx void @test_gfx_call_external_void_func_struct_i8_i32_inreg() #0 {
   ; CHECK-LABEL: name: test_gfx_call_external_void_func_struct_i8_i32_inreg
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s8) = G_LOAD [[LOAD]](p1) :: (load (s8) from %ir.ptr0, align 4, addrspace 1)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[LOAD]], [[C]](s64)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32) from %ir.ptr0 + 4, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_gfx_void_func_struct_i8_i32_inreg
   ; CHECK-NEXT:   [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[LOAD1]](s8)
   ; CHECK-NEXT:   [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ANYEXT]](s16)

llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-call.ll

define amdgpu_kernel void @test_call_external_void_func_v8i32() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<8 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<8 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<8 x s32>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v8i32
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)
define amdgpu_kernel void @test_call_external_void_func_v16i32() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<16 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<16 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<16 x s32>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<16 x s32>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v16i32
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)
define amdgpu_kernel void @test_call_external_void_func_v32i32() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<32 x s32>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<32 x s32>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v32i32
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)
define amdgpu_kernel void @test_call_external_void_func_v32i32_i32(i32) #0 {
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
   ; CHECK-NEXT:   [[DEF1:%[0-9]+]]:_(p1) = G_IMPLICIT_DEF
   ; CHECK-NEXT:   [[INT:%[0-9]+]]:_(p4) = G_INTRINSIC intrinsic(@llvm.amdgcn.kernarg.segment.ptr)
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<32 x s32>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<32 x s32>) from %ir.ptr0, addrspace 1)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[DEF1]](p1) :: ("amdgpu-noclobber" load (s32) from `i32 addrspace(1)* undef`, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v32i32_i32
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
define amdgpu_kernel void @test_call_external_void_func_v32i32_i8_i8_i16() #0 {
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
   ; CHECK-NEXT:   [[DEF1:%[0-9]+]]:_(p1) = G_IMPLICIT_DEF
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p1) = COPY [[DEF1]](p1)
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<32 x s32>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<32 x s32>) from %ir.ptr0, addrspace 1)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s8) = G_LOAD [[DEF1]](p1) :: ("amdgpu-noclobber" load (s8) from `i8 addrspace(1)* undef`, addrspace 1)
   ; CHECK-NEXT:   [[LOAD3:%[0-9]+]]:_(s16) = G_LOAD [[COPY10]](p1) :: ("amdgpu-noclobber" load (s16) from `i16 addrspace(1)* undef`, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v32i32_i8_i8_i16
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY13:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
define amdgpu_kernel void @test_call_external_void_func_v32i32_p3_p5() #0 {
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
   ; CHECK-NEXT:   [[DEF1:%[0-9]+]]:_(p1) = G_IMPLICIT_DEF
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p1) = COPY [[DEF1]](p1)
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<32 x i32> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<32 x s32>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<32 x s32>) from %ir.ptr0, addrspace 1)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(p3) = G_LOAD [[DEF1]](p1) :: ("amdgpu-noclobber" load (p3) from `i8 addrspace(3)* addrspace(1)* undef`, addrspace 1)
   ; CHECK-NEXT:   [[LOAD3:%[0-9]+]]:_(p5) = G_LOAD [[COPY10]](p1) :: ("amdgpu-noclobber" load (p5) from `i8 addrspace(5)* addrspace(1)* undef`, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v32i32_p3_p5
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY13:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
define amdgpu_kernel void @test_call_external_void_func_struct_i8_i32() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s8) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (s8) from %ir.ptr0, align 4, addrspace 1)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[LOAD]], [[C]](s64)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: ("amdgpu-noclobber" load (s32) from %ir.ptr0 + 4, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_struct_i8_i32
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
define amdgpu_kernel void @test_call_external_void_func_struct_i8_i32() #0 {
   call void @external_void_func_struct_i8_i32({ i8, i32 } %val)
   ret void
 }
 
 define amdgpu_gfx void @test_gfx_call_external_void_func_struct_i8_i32() #0 {
   ; CHECK-LABEL: name: test_gfx_call_external_void_func_struct_i8_i32
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s8) = G_LOAD [[LOAD]](p1) :: (load (s8) from %ir.ptr0, align 4, addrspace 1)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[LOAD]], [[C]](s64)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32) from %ir.ptr0 + 4, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_gfx_void_func_struct_i8_i32
   ; CHECK-NEXT:   [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[LOAD1]](s8)
   ; CHECK-NEXT:   [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ANYEXT]](s16)
define amdgpu_gfx void @test_gfx_call_external_void_func_struct_i8_i32() #0 {
   call amdgpu_gfx void @external_gfx_void_func_struct_i8_i32({ i8, i32 } %val)
   ret void
 }
 
 define amdgpu_gfx void @test_gfx_call_external_void_func_struct_i8_i32_inreg() #0 {
   ; CHECK-LABEL: name: test_gfx_call_external_void_func_struct_i8_i32_inreg
   ; CHECK: bb.1 (%ir-block.0):
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `{ i8, i32 } addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s8) = G_LOAD [[LOAD]](p1) :: (load (s8) from %ir.ptr0, align 4, addrspace 1)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[LOAD]], [[C]](s64)
   ; CHECK-NEXT:   [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32) from %ir.ptr0 + 4, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_gfx_void_func_struct_i8_i32_inreg
   ; CHECK-NEXT:   [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[LOAD1]](s8)
   ; CHECK-NEXT:   [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ANYEXT]](s16)
define amdgpu_kernel void @test_call_external_void_func_v2i8() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<2 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<2 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<2 x s8>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<2 x s8>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v2i8
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)
define amdgpu_kernel void @test_call_external_void_func_v3i8() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<3 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<3 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<3 x s8>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<3 x s8>) from %ir.ptr, align 4, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v3i8
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)
define amdgpu_kernel void @test_call_external_void_func_v4i8() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<4 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<4 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<4 x s8>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<4 x s8>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v4i8
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)
define amdgpu_kernel void @test_call_external_void_func_v8i8() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<8 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<8 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<8 x s8>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<8 x s8>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v8i8
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)
define amdgpu_kernel void @test_call_external_void_func_v16i8() #0 {
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sgpr_32 = COPY $sgpr16
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sgpr_32 = COPY $sgpr15
   ; CHECK-NEXT:   [[COPY5:%[0-9]+]]:sgpr_32 = COPY $sgpr14
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_64 = COPY $sgpr10_sgpr11
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_64 = COPY $sgpr6_sgpr7
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_64 = COPY $sgpr4_sgpr5
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:_(p4) = COPY $sgpr8_sgpr9
   ; CHECK-NEXT:   [[DEF:%[0-9]+]]:_(p4) = G_IMPLICIT_DEF
-  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (load (p1) from `<16 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(p1) = G_LOAD [[DEF]](p4) :: (dereferenceable invariant load (p1) from `<16 x i8> addrspace(1)* addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(<16 x s8>) = G_LOAD [[LOAD]](p1) :: ("amdgpu-noclobber" load (<16 x s8>) from %ir.ptr, addrspace 1)
   ; CHECK-NEXT:   ADJCALLSTACKUP 0, 0, implicit-def $scc
   ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @external_void_func_v16i8
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:_(p4) = COPY [[COPY8]]
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:_(p4) = COPY [[COPY7]]
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:_(p4) = COPY [[COPY9]](p4)
   ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
   ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p4) = G_PTR_ADD [[COPY12]], [[C]](s64)

llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-invariant.ll

+; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+; RUN: llc -simplify-mir -global-isel -march=amdgcn -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s
+
+; Check the flags set on the memory operands for loads determined to
+; be constants by alias analysis.
+
+@const_gv0 = external addrspace(1) constant i32, align 4
+@const_gv1 = external addrspace(1) constant i32, align 4
+@const_struct_gv = external addrspace(1) constant { i32, i64 }, align 8
+
+define i32 @load_const_i32_gv() {
+  ; CHECK-LABEL: name: load_const_i32_gv
+  ; CHECK: bb.1 (%ir-block.0):
+  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p1) = G_GLOBAL_VALUE @const_gv0
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[GV]](p1) :: (dereferenceable invariant load (s32) from @const_gv0, addrspace 1)
+  ; CHECK-NEXT:   $vgpr0 = COPY [[LOAD]](s32)
+  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0
+  %load = load i32, ptr addrspace(1) @const_gv0, align 4
+  ret i32 %load
+}
+
+define i32 @load_select_const_i32_gv(i1 %cond) {
+  ; CHECK-LABEL: name: load_select_const_i32_gv
+  ; CHECK: bb.1 (%ir-block.0):
+  ; CHECK-NEXT:   liveins: $vgpr0
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+  ; CHECK-NEXT:   [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[COPY]](s32)
+  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p1) = G_GLOBAL_VALUE @const_gv0
+  ; CHECK-NEXT:   [[GV1:%[0-9]+]]:_(p1) = G_GLOBAL_VALUE @const_gv1
+  ; CHECK-NEXT:   [[SELECT:%[0-9]+]]:_(p1) = G_SELECT [[TRUNC]](s1), [[GV]], [[GV1]]
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[SELECT]](p1) :: (dereferenceable invariant load (s32) from %ir.select, addrspace 1)
+  ; CHECK-NEXT:   $vgpr0 = COPY [[LOAD]](s32)
+  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0
+  %select = select i1 %cond, ptr addrspace(1) @const_gv0, ptr addrspace(1) @const_gv1
+  %load = load i32, ptr addrspace(1) %select, align 4
+  ret i32 %load
+}
+
+define { i32, i64 } @load_const_struct_gv() {
+  ; CHECK-LABEL: name: load_const_struct_gv
+  ; CHECK: bb.1 (%ir-block.0):
+  ; CHECK-NEXT:   [[GV:%[0-9]+]]:_(p1) = G_GLOBAL_VALUE @const_struct_gv
+  ; CHECK-NEXT:   [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[GV]](p1) :: (dereferenceable invariant load (s32) from @const_struct_gv, align 8, addrspace 1)
+  ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 8
+  ; CHECK-NEXT:   [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[GV]], [[C]](s64)
+  ; CHECK-NEXT:   [[LOAD1:%[0-9]+]]:_(s64) = G_LOAD [[PTR_ADD]](p1) :: (dereferenceable invariant load (s64) from @const_struct_gv + 8, addrspace 1)
+  ; CHECK-NEXT:   [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](s64)
+  ; CHECK-NEXT:   $vgpr0 = COPY [[LOAD]](s32)
+  ; CHECK-NEXT:   $vgpr1 = COPY [[UV]](s32)
+  ; CHECK-NEXT:   $vgpr2 = COPY [[UV1]](s32)
+  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1, implicit $vgpr2
+  %load = load { i32, i64 }, ptr addrspace(1) @const_struct_gv, align 8
+  ret { i32, i64 } %load
+}
+
+define void @test_memcpy_p1_constaddr_i64(i8 addrspace(1)* %dst, i8 addrspace(4)* %src) {
+  ; CHECK-LABEL: name: test_memcpy_p1_constaddr_i64
+  ; CHECK: bb.1 (%ir-block.0):
+  ; CHECK-NEXT:   liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
+  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
+  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
+  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
+  ; CHECK-NEXT:   [[MV1:%[0-9]+]]:_(p4) = G_MERGE_VALUES [[COPY2]](s32), [[COPY3]](s32)
+  ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 32
+  ; CHECK-NEXT:   G_MEMCPY [[MV]](p1), [[MV1]](p4), [[C]](s64), 0 :: (store (s8) into %ir.dst, addrspace 1), (dereferenceable invariant load (s8) from %ir.src, addrspace 4)
+  ; CHECK-NEXT:   SI_RETURN
+  call void @llvm.memcpy.p1.p4.i64(i8 addrspace(1)* %dst, i8 addrspace(4)* %src, i64 32, i1 false)
+  ret void
+}
+
+define void @test_memcpy_inline_p1_constaddr_i64(i8 addrspace(1)* %dst, i8 addrspace(4)* %src) {
+  ; CHECK-LABEL: name: test_memcpy_inline_p1_constaddr_i64
+  ; CHECK: bb.1 (%ir-block.0):
+  ; CHECK-NEXT:   liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
+  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
+  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
+  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
+  ; CHECK-NEXT:   [[MV1:%[0-9]+]]:_(p4) = G_MERGE_VALUES [[COPY2]](s32), [[COPY3]](s32)
+  ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 32
+  ; CHECK-NEXT:   G_MEMCPY_INLINE [[MV]](p1), [[MV1]](p4), [[C]](s64) :: (store (s8) into %ir.dst, addrspace 1), (dereferenceable invariant load (s8) from %ir.src, addrspace 4)
+  ; CHECK-NEXT:   SI_RETURN
+  call void @llvm.memcpy.inline.p1.p4.i64(i8 addrspace(1)* %dst, i8 addrspace(4)* %src, i64 32, i1 false)
+  ret void
+}
+
+define void @test_memmove_p1_constaddr_i64(i8 addrspace(1)* %dst, i8 addrspace(4)* %src) {
+  ; CHECK-LABEL: name: test_memmove_p1_constaddr_i64
+  ; CHECK: bb.1 (%ir-block.0):
+  ; CHECK-NEXT:   liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
+  ; CHECK-NEXT:   [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
+  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
+  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
+  ; CHECK-NEXT:   [[MV1:%[0-9]+]]:_(p4) = G_MERGE_VALUES [[COPY2]](s32), [[COPY3]](s32)
+  ; CHECK-NEXT:   [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 32
+  ; CHECK-NEXT:   G_MEMMOVE [[MV]](p1), [[MV1]](p4), [[C]](s64), 0 :: (store (s8) into %ir.dst, addrspace 1), (dereferenceable invariant load (s8) from %ir.src, addrspace 4)
+  ; CHECK-NEXT:   SI_RETURN
+  call void @llvm.memmove.p1.p4.i64(i8 addrspace(1)* %dst, i8 addrspace(4)* %src, i64 32, i1 false)
+  ret void
+}
+
+declare void @llvm.memcpy.p1.p4.i64(ptr addrspace(1) noalias nocapture writeonly, ptr addrspace(4) noalias nocapture readonly, i64, i1 immarg) #0
+declare void @llvm.memcpy.inline.p1.p4.i64(ptr addrspace(1) noalias nocapture writeonly, ptr addrspace(4) noalias nocapture readonly, i64, i1 immarg) #0
+declare void @llvm.memmove.p1.p4.i64(ptr addrspace(1) nocapture writeonly, ptr addrspace(4) nocapture readonly, i64, i1 immarg) #0
+
+attributes #0 = { argmemonly nofree nounwind willreturn }

llvm/test/CodeGen/AMDGPU/amdgcn-load-offset-from-reg.ll

 ; Test that DAG->DAG ISel is able to pick up the S_LOAD_DWORDX4_SGPR instruction that fetches the offset
 ; from a register.
 
 ; RUN: llc -march=amdgcn -verify-machineinstrs -stop-after=amdgpu-isel -o - %s | FileCheck -check-prefix=GCN %s
 
 ; GCN: %[[OFFSET:[0-9]+]]:sreg_32 = S_MOV_B32 target-flags(amdgpu-abs32-lo) @DescriptorBuffer
-; GCN: %{{[0-9]+}}:sgpr_128 = S_LOAD_DWORDX4_SGPR killed %{{[0-9]+}}, killed %[[OFFSET]], 0 :: (invariant load (s128) from %ir.13, addrspace 4)
+; GCN: %{{[0-9]+}}:sgpr_128 = S_LOAD_DWORDX4_SGPR killed %{{[0-9]+}}, killed %[[OFFSET]], 0 :: (dereferenceable invariant load (s128) from %ir.13, addrspace 4)
 
 define amdgpu_cs void @test_load_zext(i32 inreg %0, i32 inreg %1, i32 inreg %resNode0, i32 inreg %resNode1, <3 x i32> inreg %2, i32 inreg %3, <3 x i32> %4) local_unnamed_addr #2 {
 .entry:
   %5 = call i64 @llvm.amdgcn.s.getpc() #3
   %6 = bitcast i64 %5 to <2 x i32>
   %7 = insertelement <2 x i32> %6, i32 %resNode0, i32 0
   %8 = bitcast <2 x i32> %7 to i64
   %9 = inttoptr i64 %8 to [4294967295 x i8] addrspace(4)*

llvm/test/CodeGen/AMDGPU/llc-pipeline.ll

 ; GCN-O0-NEXT:        MachinePostDominator Tree Construction
 ; GCN-O0-NEXT:        SI Lower i1 Copies
 ; GCN-O0-NEXT:        Finalize ISel and expand pseudo-instructions
 ; GCN-O0-NEXT:        Local Stack Slot Allocation
 ; GCN-O0-NEXT:        Register Usage Information Propagation
 ; GCN-O0-NEXT:        Eliminate PHI nodes for register allocation
 ; GCN-O0-NEXT:        SI Lower control flow pseudo instructions
 ; GCN-O0-NEXT:        Two-Address instruction pass
-; GCN-O0-NEXT:        Basic Alias Analysis (stateless AA impl)
-; GCN-O0-NEXT:        Function Alias Analysis Results
 ; GCN-O0-NEXT:        MachineDominator Tree Construction
 ; GCN-O0-NEXT:        Slot index numbering
 ; GCN-O0-NEXT:        Live Interval Analysis
 ; GCN-O0-NEXT:        MachinePostDominator Tree Construction
 ; GCN-O0-NEXT:        SI Whole Quad Mode
 ; GCN-O0-NEXT:        Virtual Register Map
 ; GCN-O0-NEXT:        Live Register Matrix
 ; GCN-O0-NEXT:        SI Pre-allocate WWM Registers

llvm/test/CodeGen/AMDGPU/splitkit-getsubrangeformask.ll

define amdgpu_gs void @_amdgpu_gs_main(i32 inreg %primShaderTableAddrLow, <31 x i32> inreg %userData) {
   ; CHECK-NEXT:   undef %50.sub0:sgpr_64 = COPY $sgpr19
   ; CHECK-NEXT:   [[COPY6:%[0-9]+]]:sgpr_32 = COPY $sgpr20
   ; CHECK-NEXT:   [[COPY7:%[0-9]+]]:sgpr_32 = COPY $sgpr21
   ; CHECK-NEXT:   [[COPY8:%[0-9]+]]:sgpr_32 = COPY $sgpr22
   ; CHECK-NEXT:   [[COPY9:%[0-9]+]]:sgpr_32 = COPY $sgpr23
   ; CHECK-NEXT:   [[COPY10:%[0-9]+]]:sgpr_32 = COPY $sgpr9
   ; CHECK-NEXT:   [[COPY11:%[0-9]+]]:sgpr_32 = COPY $sgpr10
   ; CHECK-NEXT:   [[COPY12:%[0-9]+]]:sgpr_32 = COPY $sgpr8
-  ; CHECK-NEXT:   undef %71.sub0_sub1:sgpr_128 = S_LOAD_DWORDX2_IMM %56, 232, 0 :: (load (s64) from %ir.40, addrspace 4)
+  ; CHECK-NEXT:   undef %71.sub0_sub1:sgpr_128 = S_LOAD_DWORDX2_IMM %56, 232, 0 :: (dereferenceable invariant load (s64) from %ir.40, addrspace 4)
   ; CHECK-NEXT:   [[S_LSHL_B32_:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY4]], 4, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_LSHL_B32_1:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY3]], 4, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_LSHL_B32_2:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY2]], 4, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ASHR_I32_:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ASHR_I32_1:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_1]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ASHR_I32_2:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_2]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   %71.sub1:sgpr_128 = S_AND_B32 %71.sub1, 65535, implicit-def dead $scc
   ; CHECK-NEXT:   undef %130.sub0:sreg_64 = S_ADD_U32 [[COPY5]], [[S_LSHL_B32_2]], implicit-def $scc
   ; CHECK-NEXT:   %130.sub1:sreg_64 = S_ADDC_U32 undef %54:sreg_32, [[S_ASHR_I32_2]], implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %130, 16, 0 :: (load (s128) from %ir.84, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM1:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM undef %74:sreg_64, 0, 0 :: (load (s128) from `<4 x i32> addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %130, 16, 0 :: (dereferenceable invariant load (s128) from %ir.84, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM1:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM undef %74:sreg_64, 0, 0 :: (dereferenceable invariant load (s128) from `<4 x i32> addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM undef %132:sgpr_128, 0, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   KILL undef %74:sreg_64
   ; CHECK-NEXT:   KILL undef %132:sgpr_128
   ; CHECK-NEXT:   KILL %130.sub0, %130.sub1
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM1:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM [[S_LOAD_DWORDX4_IMM]], 0, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[V_MOV_B32_e32_:%[0-9]+]]:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
   ; CHECK-NEXT:   undef %302.sub1:sgpr_128 = S_MOV_B32 0
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], undef %89:sgpr_128, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN1:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM1]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   KILL undef %89:sgpr_128
   ; CHECK-NEXT:   [[S_SUB_I32_:%[0-9]+]]:sreg_32 = S_SUB_I32 [[S_BUFFER_LOAD_DWORD_IMM]], 29, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_SUB_I32_1:%[0-9]+]]:sreg_32 = S_SUB_I32 [[S_BUFFER_LOAD_DWORD_IMM]], 30, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_SUB_I32_2:%[0-9]+]]:sreg_32 = S_SUB_I32 [[S_BUFFER_LOAD_DWORD_IMM1]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_U32_:%[0-9]+]]:sreg_32 = S_ADD_U32 [[COPY5]], 64, implicit-def $scc
   ; CHECK-NEXT:   [[S_ADDC_U32_:%[0-9]+]]:sreg_32 = S_ADDC_U32 undef %54:sreg_32, 0, implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %149.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_]], [[S_LSHL_B32_]], implicit-def $scc
   ; CHECK-NEXT:   %149.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_]], [[S_ASHR_I32_]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %156.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_]], [[S_LSHL_B32_1]], implicit-def $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM2:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %149, 0, 0 :: (load (s128) from %ir.91, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM2:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %149, 0, 0 :: (dereferenceable invariant load (s128) from %ir.91, addrspace 4)
   ; CHECK-NEXT:   %156.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_]], [[S_ASHR_I32_1]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %163.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_]], [[S_LSHL_B32_2]], implicit-def $scc
   ; CHECK-NEXT:   %163.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_]], [[S_ASHR_I32_2]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   [[S_ASHR_I32_3:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 undef %171:sreg_32, 31, implicit-def dead $scc
   ; CHECK-NEXT:   undef %176.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_]], undef %171:sreg_32, implicit-def $scc
   ; CHECK-NEXT:   %176.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_]], [[S_ASHR_I32_3]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %183.sub0:sreg_64 = S_ADD_U32 %50.sub0, [[S_LSHL_B32_]], implicit-def $scc
   ; CHECK-NEXT:   %183.sub1:sreg_64 = S_ADDC_U32 undef %51:sreg_32, [[S_ASHR_I32_]], implicit-def dead $scc, implicit $scc
define amdgpu_gs void @_amdgpu_gs_main(i32 inreg %primShaderTableAddrLow, <31 x i32> inreg %userData) {
   ; CHECK-NEXT:   [[S_ADD_I32_1:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_LSHL_B32_2]], 16, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_SGPR:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %302, [[S_ADD_I32_]], 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_SGPR1:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %302, undef %314:sreg_32, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_SGPR2:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR %302, [[S_ADD_I32_1]], 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM2:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM %302, 16, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[BUFFER_LOAD_DWORD_OFFSET:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_DWORD_OFFSET undef %118:sgpr_128, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_SGPR3:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR undef %369:sgpr_128, undef %370:sreg_32, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM3:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM undef %380:sgpr_128, 16, 0 :: (dereferenceable invariant load (s32))
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM3:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %156, 0, 0 :: (load (s128) from %ir.97, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM4:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %163, 0, 0 :: (load (s128) from %ir.103, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM5:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %176, 0, 0 :: (load (s128) from %ir.111, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM6:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %183, 0, 0 :: (load (s128) from %ir.117, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM7:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %190, 0, 0 :: (load (s128) from %ir.123, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM3:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %156, 0, 0 :: (dereferenceable invariant load (s128) from %ir.97, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM4:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %163, 0, 0 :: (dereferenceable invariant load (s128) from %ir.103, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM5:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %176, 0, 0 :: (dereferenceable invariant load (s128) from %ir.111, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM6:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %183, 0, 0 :: (dereferenceable invariant load (s128) from %ir.117, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM7:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %190, 0, 0 :: (dereferenceable invariant load (s128) from %ir.123, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN2:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM2]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_SGPR4:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR undef %364:sgpr_128, [[S_ADD_I32_]], 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_SGPR5:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR undef %375:sgpr_128, [[S_ADD_I32_1]], 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[S_ADD_I32_2:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR]], -98, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_3:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR1]], -114, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_4:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR2]], -130, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_5:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM2]], -178, implicit-def dead $scc
   ; CHECK-NEXT:   undef %327.sub0:sreg_64 = S_ADD_U32 [[COPY8]], [[S_LSHL_B32_]], implicit-def $scc
   ; CHECK-NEXT:   %327.sub1:sreg_64 = S_ADDC_U32 undef %42:sreg_32, [[S_ASHR_I32_]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %335.sub0:sreg_64 = S_ADD_U32 [[COPY9]], [[S_LSHL_B32_]], implicit-def $scc
   ; CHECK-NEXT:   %335.sub1:sreg_64 = S_ADDC_U32 undef %39:sreg_32, [[S_ASHR_I32_]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %343.sub0:sreg_64 = S_ADD_U32 [[COPY9]], [[S_LSHL_B32_1]], implicit-def $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM8:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %200, 0, 0 :: (load (s128) from %ir.131, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM8:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %200, 0, 0 :: (dereferenceable invariant load (s128) from %ir.131, addrspace 4)
   ; CHECK-NEXT:   %343.sub1:sreg_64 = S_ADDC_U32 undef %39:sreg_32, [[S_ASHR_I32_1]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %351.sub0:sreg_64 = S_ADD_U32 [[COPY9]], [[S_LSHL_B32_2]], implicit-def $scc
   ; CHECK-NEXT:   %351.sub1:sreg_64 = S_ADDC_U32 undef %39:sreg_32, [[S_ASHR_I32_2]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   [[S_LSHL_B32_3:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY10]], 4, implicit-def dead $scc
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN3:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM3]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_ADD_I32_6:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_LSHL_B32_3]], 16, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_SGPR6:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_SGPR undef %396:sgpr_128, [[S_ADD_I32_6]], 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN4:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM4]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM9:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %50, 224, 0 :: (load (s128) from %ir.155, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM10:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %210, 0, 0 :: (load (s128) from %ir.138, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM9:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %50, 224, 0 :: (dereferenceable invariant load (s128) from %ir.155, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM10:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %210, 0, 0 :: (dereferenceable invariant load (s128) from %ir.138, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN5:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM5]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM11:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %217, 0, 0 :: (load (s128) from %ir.144, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM12:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %224, 0, 0 :: (load (s128) from %ir.150, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM11:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %217, 0, 0 :: (dereferenceable invariant load (s128) from %ir.144, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM12:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %224, 0, 0 :: (dereferenceable invariant load (s128) from %ir.150, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN6:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM6]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN7:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM7]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN8:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM8]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_ADD_I32_7:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR4]], -217, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_8:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -233, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_9:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR5]], -249, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_10:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM3]], -297, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_11:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -313, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_12:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -329, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_13:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -345, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_14:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR6]], -441, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_U32_3:%[0-9]+]]:sreg_32 = S_ADD_U32 [[COPY1]], 160, implicit-def $scc
   ; CHECK-NEXT:   [[S_ADDC_U32_3:%[0-9]+]]:sreg_32 = S_ADDC_U32 undef %36:sreg_32, 0, implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %411.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_3]], [[S_LSHL_B32_2]], implicit-def $scc
   ; CHECK-NEXT:   %411.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_3]], [[S_ASHR_I32_2]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   [[S_LSHL_B32_4:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY11]], 4, implicit-def dead $scc
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN9:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM10]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_ASHR_I32_4:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_4]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   undef %425.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_3]], [[S_LSHL_B32_4]], implicit-def $scc
   ; CHECK-NEXT:   %425.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_3]], [[S_ASHR_I32_4]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   [[S_ADD_U32_4:%[0-9]+]]:sreg_32 = S_ADD_U32 %56.sub0, 168, implicit-def $scc
   ; CHECK-NEXT:   [[S_ADDC_U32_4:%[0-9]+]]:sreg_32 = S_ADDC_U32 undef %57:sreg_32, 0, implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM13:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %241, 0, 0 :: (load (s128) from %ir.162, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM13:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %241, 0, 0 :: (dereferenceable invariant load (s128) from %ir.162, addrspace 4)
   ; CHECK-NEXT:   [[S_LSHL_B32_5:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY4]], 3, implicit-def dead $scc
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN10:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM11]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_ASHR_I32_5:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_5]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   undef %441.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_4]], [[S_LSHL_B32_5]], implicit-def $scc
   ; CHECK-NEXT:   %441.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_4]], [[S_ASHR_I32_5]], implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %441, 0, 0 :: (load (s32) from %ir..i085.i, align 8, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM14:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %253, 0, 0 :: (load (s128) from %ir.170, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %441, 0, 0 :: (dereferenceable invariant load (s32) from %ir..i085.i, align 8, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM14:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %253, 0, 0 :: (dereferenceable invariant load (s128) from %ir.170, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN11:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM12]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM15:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %261, 0, 0 :: (load (s128) from %ir.176, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM15:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %261, 0, 0 :: (dereferenceable invariant load (s128) from %ir.176, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN12:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM9]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN13:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM13]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   %71.sub3:sgpr_128 = S_MOV_B32 553734060
   ; CHECK-NEXT:   %71.sub2:sgpr_128 = S_MOV_B32 -1
   ; CHECK-NEXT:   [[COPY13:%[0-9]+]]:sgpr_128 = COPY %71
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM16:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %273, 0, 0 :: (load (s128) from %ir.185, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM16:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %273, 0, 0 :: (dereferenceable invariant load (s128) from %ir.185, addrspace 4)
   ; CHECK-NEXT:   [[COPY13]].sub1:sgpr_128 = COPY %302.sub1
   ; CHECK-NEXT:   [[COPY13]].sub0:sgpr_128 = COPY [[S_LOAD_DWORD_IMM]]
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM4:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM [[COPY13]], 0, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN14:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM14]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN15:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM15]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM17:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %286, 0, 0 :: (load (s128) from %ir.194, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM18:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %293, 0, 0 :: (load (s128) from %ir.200, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM17:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %286, 0, 0 :: (dereferenceable invariant load (s128) from %ir.194, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM18:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %293, 0, 0 :: (dereferenceable invariant load (s128) from %ir.200, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN16:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM16]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_LSHL_B32_6:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY3]], 3, implicit-def dead $scc
   ; CHECK-NEXT:   [[BUFFER_LOAD_DWORD_OFFSET1:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_DWORD_OFFSET [[S_LOAD_DWORDX4_IMM1]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_ASHR_I32_6:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_6]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_15:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM4]], -467, implicit-def dead $scc
   ; CHECK-NEXT:   undef %453.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_4]], [[S_LSHL_B32_6]], implicit-def $scc
   ; CHECK-NEXT:   %453.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_4]], [[S_ASHR_I32_6]], implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %453, 0, 0 :: (load (s64) from %ir.308, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %453, 0, 0 :: (dereferenceable invariant load (s64) from %ir.308, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_DWORD_OFFSET2:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_DWORD_OFFSET [[S_LOAD_DWORDX4_IMM17]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_DWORD_OFFSET3:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_DWORD_OFFSET [[S_LOAD_DWORDX4_IMM18]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM19:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %327, 0, 0 :: (load (s128) from %ir.223, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM20:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %335, 0, 0 :: (load (s128) from %ir.230, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM19:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %327, 0, 0 :: (dereferenceable invariant load (s128) from %ir.223, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM20:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %335, 0, 0 :: (dereferenceable invariant load (s128) from %ir.230, addrspace 4)
   ; CHECK-NEXT:   [[COPY14:%[0-9]+]]:sgpr_128 = COPY %71
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM21:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %343, 0, 0 :: (load (s128) from %ir.236, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM21:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %343, 0, 0 :: (dereferenceable invariant load (s128) from %ir.236, addrspace 4)
   ; CHECK-NEXT:   [[S_AND_B32_:%[0-9]+]]:sreg_32 = S_AND_B32 [[S_LOAD_DWORDX2_IMM]].sub1, 65535, implicit-def dead $scc
   ; CHECK-NEXT:   [[COPY14]].sub0:sgpr_128 = COPY [[S_LOAD_DWORDX2_IMM]].sub0
   ; CHECK-NEXT:   [[COPY14]].sub1:sgpr_128 = COPY [[S_AND_B32_]]
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM5:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM [[COPY14]], 0, 0 :: (dereferenceable invariant load (s32))
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM22:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %351, 0, 0 :: (load (s128) from %ir.242, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM22:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %351, 0, 0 :: (dereferenceable invariant load (s128) from %ir.242, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN17:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM19]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN18:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM20]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_LSHL_B32_7:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY2]], 3, implicit-def dead $scc
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN19:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM21]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[S_ASHR_I32_7:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_7]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_16:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM5]], -468, implicit-def dead $scc
   ; CHECK-NEXT:   undef %468.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_4]], [[S_LSHL_B32_7]], implicit-def $scc
   ; CHECK-NEXT:   %468.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_4]], [[S_ASHR_I32_7]], implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN20:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM22]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX2_IMM1:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %468, 0, 0 :: (load (s64) from %ir.320, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX2_IMM1:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %468, 0, 0 :: (dereferenceable invariant load (s64) from %ir.320, addrspace 4)
   ; CHECK-NEXT:   [[COPY15:%[0-9]+]]:sgpr_128 = COPY %71
   ; CHECK-NEXT:   [[S_AND_B32_1:%[0-9]+]]:sreg_32 = S_AND_B32 [[S_LOAD_DWORDX2_IMM1]].sub1, 65535, implicit-def dead $scc
   ; CHECK-NEXT:   [[COPY15]].sub0:sgpr_128 = COPY [[S_LOAD_DWORDX2_IMM1]].sub0
   ; CHECK-NEXT:   [[COPY15]].sub1:sgpr_128 = COPY [[S_AND_B32_1]]
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM6:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM [[COPY15]], 0, 0 :: (dereferenceable invariant load (s32))
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM23:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %411, 0, 0 :: (load (s128) from %ir.282, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM1:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM undef %488:sreg_64, 0, 0 :: (load (s32) from `i32 addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM23:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %411, 0, 0 :: (dereferenceable invariant load (s128) from %ir.282, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM1:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM undef %488:sreg_64, 0, 0 :: (dereferenceable invariant load (s32) from `i32 addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   KILL %411.sub0, %411.sub1
   ; CHECK-NEXT:   KILL undef %488:sreg_64
   ; CHECK-NEXT:   KILL [[COPY15]].sub0_sub1, [[COPY15]].sub2_sub3
   ; CHECK-NEXT:   [[S_LSHL_B32_8:%[0-9]+]]:sreg_32 = S_LSHL_B32 [[COPY12]], 3, implicit-def dead $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM24:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %425, 0, 0 :: (load (s128) from %ir.291, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM24:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %425, 0, 0 :: (dereferenceable invariant load (s128) from %ir.291, addrspace 4)
   ; CHECK-NEXT:   [[S_ASHR_I32_8:%[0-9]+]]:sreg_32_xm0 = S_ASHR_I32 [[S_LSHL_B32_8]], 31, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_17:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM6]], -469, implicit-def dead $scc
   ; CHECK-NEXT:   undef %485.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_4]], [[S_LSHL_B32_8]], implicit-def $scc
   ; CHECK-NEXT:   %485.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_4]], [[S_ASHR_I32_8]], implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM2:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %485, 0, 0 :: (load (s32) from %ir..i0100.i, align 8, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM2:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM %485, 0, 0 :: (dereferenceable invariant load (s32) from %ir..i0100.i, align 8, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN21:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM23]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN22:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM24]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   KILL [[S_LOAD_DWORDX4_IMM24]]
   ; CHECK-NEXT:   KILL [[S_LOAD_DWORDX4_IMM23]]
   ; CHECK-NEXT:   [[S_AND_B32_2:%[0-9]+]]:sreg_32 = S_AND_B32 [[S_LOAD_DWORD_IMM1]], 65535, implicit-def dead $scc
   ; CHECK-NEXT:   [[COPY16:%[0-9]+]]:sgpr_128 = COPY %71
   ; CHECK-NEXT:   [[COPY16]].sub1:sgpr_128 = COPY [[S_AND_B32_2]]
   ; CHECK-NEXT:   [[COPY16]].sub0:sgpr_128 = COPY [[S_LOAD_DWORD_IMM2]]
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM7:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM [[COPY16]], 0, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[S_ADD_I32_18:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM]], -474, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_19:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -475, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_20:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -491, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_21:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -507, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_22:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_SGPR3]], -539, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_I32_23:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM7]], -473, implicit-def dead $scc
   ; CHECK-NEXT:   [[S_ADD_U32_5:%[0-9]+]]:sreg_32 = S_ADD_U32 [[COPY]], 96, implicit-def $scc
   ; CHECK-NEXT:   [[S_ADDC_U32_5:%[0-9]+]]:sreg_32 = S_ADDC_U32 undef %33:sreg_32, 0, implicit-def dead $scc, implicit $scc
   ; CHECK-NEXT:   undef %514.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_5]], [[S_LSHL_B32_]], implicit-def $scc
   ; CHECK-NEXT:   %514.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_5]], [[S_ASHR_I32_]], implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM25:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %514, 0, 0 :: (load (s128) from %ir.351, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM25:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %514, 0, 0 :: (dereferenceable invariant load (s128) from %ir.351, addrspace 4)
   ; CHECK-NEXT:   undef %522.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_5]], [[S_LSHL_B32_1]], implicit-def $scc
   ; CHECK-NEXT:   %522.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_5]], [[S_ASHR_I32_1]], implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM26:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %522, 0, 0 :: (load (s128) from %ir.357, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM26:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %522, 0, 0 :: (dereferenceable invariant load (s128) from %ir.357, addrspace 4)
   ; CHECK-NEXT:   undef %530.sub0:sreg_64 = S_ADD_U32 [[S_ADD_U32_5]], [[S_LSHL_B32_2]], implicit-def $scc
   ; CHECK-NEXT:   %530.sub1:sreg_64 = S_ADDC_U32 [[S_ADDC_U32_5]], [[S_ASHR_I32_2]], implicit-def dead $scc, implicit $scc
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM27:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %530, 0, 0 :: (load (s128) from %ir.363, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX4_IMM27:%[0-9]+]]:sgpr_128 = S_LOAD_DWORDX4_IMM %530, 0, 0 :: (dereferenceable invariant load (s128) from %ir.363, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN23:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM25]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN24:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM26]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   [[BUFFER_LOAD_FORMAT_X_IDXEN25:%[0-9]+]]:vgpr_32 = BUFFER_LOAD_FORMAT_X_IDXEN [[V_MOV_B32_e32_]], [[S_LOAD_DWORDX4_IMM27]], 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable load (s32) from custom "BufferResource", align 1, addrspace 4)
   ; CHECK-NEXT:   KILL [[S_LOAD_DWORDX4_IMM27]]
   ; CHECK-NEXT:   KILL [[S_LOAD_DWORDX4_IMM25]]
   ; CHECK-NEXT:   KILL [[V_MOV_B32_e32_]]
   ; CHECK-NEXT:   KILL [[S_LOAD_DWORDX4_IMM26]]
   ; CHECK-NEXT:   [[V_ADD_U32_e32_:%[0-9]+]]:vgpr_32 = V_ADD_U32_e32 -2, [[BUFFER_LOAD_FORMAT_X_IDXEN]], implicit $exec
define amdgpu_gs void @_amdgpu_gs_main(i32 inreg %primShaderTableAddrLow, <31 x i32> inreg %userData) {
   ; CHECK-NEXT:   [[V_OR_B32_e32_62:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[V_OR_B32_e32_61]], [[V_ADD_U32_e32_26]], implicit $exec
   ; CHECK-NEXT:   [[S_BUFFER_LOAD_DWORD_IMM8:%[0-9]+]]:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM %71, 0, 0 :: (dereferenceable invariant load (s32))
   ; CHECK-NEXT:   [[V_ADD_U32_e32_28:%[0-9]+]]:vgpr_32 = V_ADD_U32_e32 -576, [[BUFFER_LOAD_FORMAT_X_IDXEN]], implicit $exec
   ; CHECK-NEXT:   [[V_OR_B32_e32_63:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[V_OR_B32_e32_62]], [[V_ADD_U32_e32_27]], implicit $exec
   ; CHECK-NEXT:   [[V_ADD_U32_e32_29:%[0-9]+]]:vgpr_32 = V_ADD_U32_e32 -577, [[BUFFER_LOAD_FORMAT_X_IDXEN]], implicit $exec
   ; CHECK-NEXT:   [[V_OR_B32_e32_64:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[V_OR_B32_e32_63]], [[V_ADD_U32_e32_28]], implicit $exec
   ; CHECK-NEXT:   [[V_ADD_U32_e32_30:%[0-9]+]]:vgpr_32 = V_ADD_U32_e32 -593, [[BUFFER_LOAD_FORMAT_X_IDXEN]], implicit $exec
   ; CHECK-NEXT:   [[V_OR_B32_e32_65:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[V_OR_B32_e32_64]], [[V_ADD_U32_e32_29]], implicit $exec
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX8_IMM:%[0-9]+]]:sgpr_256 = S_LOAD_DWORDX8_IMM undef %564:sreg_64, 0, 0 :: (load (s256) from `<8 x i32> addrspace(4)* undef`, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX8_IMM:%[0-9]+]]:sgpr_256 = S_LOAD_DWORDX8_IMM undef %564:sreg_64, 0, 0 :: (dereferenceable invariant load (s256) from `<8 x i32> addrspace(4)* undef`, addrspace 4)
   ; CHECK-NEXT:   [[V_OR_B32_e32_66:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[V_OR_B32_e32_65]], [[V_ADD_U32_e32_30]], implicit $exec
   ; CHECK-NEXT:   [[S_ADD_I32_24:%[0-9]+]]:sreg_32 = S_ADD_I32 [[S_BUFFER_LOAD_DWORD_IMM8]], -594, implicit-def dead $scc
   ; CHECK-NEXT:   [[V_OR_B32_e32_67:%[0-9]+]]:vgpr_32 = V_OR_B32_e32 [[S_ADD_I32_24]], [[V_OR_B32_e32_66]], implicit $exec
   ; CHECK-NEXT:   [[V_CMP_EQ_U32_e64_:%[0-9]+]]:sreg_32_xm0_xexec = V_CMP_EQ_U32_e64 0, [[V_OR_B32_e32_67]], implicit $exec
   ; CHECK-NEXT:   undef %692.sub3:vreg_128 = V_CNDMASK_B32_e64 0, 0, 0, 1, [[V_CMP_EQ_U32_e64_]], implicit $exec
   ; CHECK-NEXT:   IMAGE_STORE_V4_V2_gfx10 %692, undef %578:vreg_64, [[S_LOAD_DWORDX8_IMM]], 15, 1, -1, 0, 0, 0, 0, 0, 0, implicit $exec :: (dereferenceable store (s128) into custom "ImageResource")
   ; CHECK-NEXT:   S_ENDPGM 0
 .expVert:

llvm/test/CodeGen/AMDGPU/twoaddr-constrain.ll

 ; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 ; RUN: llc -global-isel -march=amdgcn -mcpu=gfx900 -verify-machineinstrs -stop-after twoaddressinstruction < %s | FileCheck %s
 
 ; Check that %16 gets constrained to register class sgpr_96_with_sub0_sub1.
 define amdgpu_ps <3 x i32> @s_load_constant_v3i32_align4(<3 x i32> addrspace(4)* inreg %ptr) {
   ; CHECK-LABEL: name: s_load_constant_v3i32_align4
   ; CHECK: bb.0 (%ir-block.0):
   ; CHECK-NEXT:   liveins: $sgpr0, $sgpr1
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT:   [[COPY:%[0-9]+]]:sreg_32 = COPY killed $sgpr0
   ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:sreg_32 = COPY killed $sgpr1
   ; CHECK-NEXT:   undef %0.sub0:sreg_64 = COPY killed [[COPY]]
   ; CHECK-NEXT:   %0.sub1:sreg_64 = COPY killed [[COPY1]]
-  ; CHECK-NEXT:   [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 0, 0 :: (load (<2 x s32>) from %ir.ptr, align 4, addrspace 4)
-  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM killed %0, 8, 0 :: (load (s32) from %ir.ptr + 8, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM %0, 0, 0 :: (dereferenceable invariant load (<2 x s32>) from %ir.ptr, align 4, addrspace 4)
+  ; CHECK-NEXT:   [[S_LOAD_DWORD_IMM:%[0-9]+]]:sreg_32_xm0_xexec = S_LOAD_DWORD_IMM killed %0, 8, 0 :: (dereferenceable invariant load (s32) from %ir.ptr + 8, addrspace 4)
   ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:sreg_32 = COPY [[S_LOAD_DWORDX2_IMM]].sub0
   ; CHECK-NEXT:   $sgpr0 = COPY killed [[COPY2]]
   ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:sreg_32 = COPY killed [[S_LOAD_DWORDX2_IMM]].sub1
   ; CHECK-NEXT:   $sgpr1 = COPY killed [[COPY3]]
   ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:sreg_32 = COPY killed [[S_LOAD_DWORD_IMM]]
   ; CHECK-NEXT:   $sgpr2 = COPY killed [[COPY4]]
   ; CHECK-NEXT:   SI_RETURN_TO_EPILOG implicit killed $sgpr0, implicit killed $sgpr1, implicit killed $sgpr2
   %load = load <3 x i32>, <3 x i32> addrspace(4)* %ptr, align 4
   ret <3 x i32> %load
 }

llvm/test/CodeGen/AMDGPU/vgpr-liverange-ir.ll

define protected amdgpu_kernel void @nested_waterfalls(%tex* addrspace(1)* %tex.coerce) local_unnamed_addr {
   ; SI-NEXT: bb.1.if.then:
   ; SI-NEXT:   successors: %bb.2(0x80000000)
   ; SI-NEXT: {{  $}}
   ; SI-NEXT:   [[V_LSHLREV_B64_e64_:%[0-9]+]]:vreg_64 = V_LSHLREV_B64_e64 3, killed [[REG_SEQUENCE]], implicit $exec
   ; SI-NEXT:   [[V_ADD_CO_U32_e64_:%[0-9]+]]:vgpr_32, [[V_ADD_CO_U32_e64_1:%[0-9]+]]:sreg_32_xm0_xexec = V_ADD_CO_U32_e64 [[S_LOAD_DWORDX2_IMM]].sub0, [[V_LSHLREV_B64_e64_]].sub0, 0, implicit $exec
   ; SI-NEXT:   %69:vgpr_32, dead %71:sreg_32_xm0_xexec = V_ADDC_U32_e64 killed [[S_LOAD_DWORDX2_IMM]].sub1, killed [[V_LSHLREV_B64_e64_]].sub1, killed [[V_ADD_CO_U32_e64_1]], 0, implicit $exec
   ; SI-NEXT:   [[REG_SEQUENCE1:%[0-9]+]]:vreg_64 = REG_SEQUENCE killed [[V_ADD_CO_U32_e64_]], %subreg.sub0, killed %69, %subreg.sub1
   ; SI-NEXT:   [[GLOBAL_LOAD_DWORDX2_:%[0-9]+]]:vreg_64 = GLOBAL_LOAD_DWORDX2 killed [[REG_SEQUENCE1]], 0, 0, implicit $exec :: (load (s64) from %ir.idx, addrspace 1)
-  ; SI-NEXT:   [[GLOBAL_LOAD_DWORDX4_:%[0-9]+]]:vreg_128 = GLOBAL_LOAD_DWORDX4 [[GLOBAL_LOAD_DWORDX2_]], 16, 0, implicit $exec :: (load (s128) from %ir.6 + 16, addrspace 4)
+  ; SI-NEXT:   [[GLOBAL_LOAD_DWORDX4_:%[0-9]+]]:vreg_128 = GLOBAL_LOAD_DWORDX4 [[GLOBAL_LOAD_DWORDX2_]], 16, 0, implicit $exec :: (dereferenceable invariant load (s128) from %ir.6 + 16, addrspace 4)
   ; SI-NEXT:   [[COPY2:%[0-9]+]]:vgpr_32 = COPY [[GLOBAL_LOAD_DWORDX4_]].sub3
   ; SI-NEXT:   [[COPY3:%[0-9]+]]:vgpr_32 = COPY [[GLOBAL_LOAD_DWORDX4_]].sub2
   ; SI-NEXT:   [[COPY4:%[0-9]+]]:vgpr_32 = COPY [[GLOBAL_LOAD_DWORDX4_]].sub1
   ; SI-NEXT:   [[COPY5:%[0-9]+]]:vgpr_32 = COPY killed [[GLOBAL_LOAD_DWORDX4_]].sub0
-  ; SI-NEXT:   [[GLOBAL_LOAD_DWORDX4_1:%[0-9]+]]:vreg_128 = GLOBAL_LOAD_DWORDX4 [[GLOBAL_LOAD_DWORDX2_]], 0, 0, implicit $exec :: (load (s128) from %ir.6, align 32, addrspace 4)
+  ; SI-NEXT:   [[GLOBAL_LOAD_DWORDX4_1:%[0-9]+]]:vreg_128 = GLOBAL_LOAD_DWORDX4 [[GLOBAL_LOAD_DWORDX2_]], 0, 0, implicit $exec :: (dereferenceable invariant load (s128) from %ir.6, align 32, addrspace 4)
   ; SI-NEXT:   [[COPY6:%[0-9]+]]:vgpr_32 = COPY [[GLOBAL_LOAD_DWORDX4_1]].sub3
   ; SI-NEXT:   [[COPY7:%[0-9]+]]:vgpr_32 = COPY [[GLOBAL_LOAD_DWORDX4_1]].sub2
   ; SI-NEXT:   [[COPY8:%[0-9]+]]:vgpr_32 = COPY [[GLOBAL_LOAD_DWORDX4_1]].sub1
   ; SI-NEXT:   [[COPY9:%[0-9]+]]:vgpr_32 = COPY killed [[GLOBAL_LOAD_DWORDX4_1]].sub0
   ; SI-NEXT:   [[REG_SEQUENCE2:%[0-9]+]]:vreg_256 = REG_SEQUENCE killed [[COPY9]], %subreg.sub0, killed [[COPY8]], %subreg.sub1, killed [[COPY7]], %subreg.sub2, killed [[COPY6]], %subreg.sub3, killed [[COPY5]], %subreg.sub4, killed [[COPY4]], %subreg.sub5, killed [[COPY3]], %subreg.sub6, killed [[COPY2]], %subreg.sub7
-  ; SI-NEXT:   [[GLOBAL_LOAD_DWORDX4_2:%[0-9]+]]:vreg_128 = GLOBAL_LOAD_DWORDX4 killed [[GLOBAL_LOAD_DWORDX2_]], 48, 0, implicit $exec :: (load (s128) from %ir.8, addrspace 4)
+  ; SI-NEXT:   [[GLOBAL_LOAD_DWORDX4_2:%[0-9]+]]:vreg_128 = GLOBAL_LOAD_DWORDX4 killed [[GLOBAL_LOAD_DWORDX2_]], 48, 0, implicit $exec :: (dereferenceable invariant load (s128) from %ir.8, addrspace 4)
   ; SI-NEXT:   [[S_MOV_B32_:%[0-9]+]]:sreg_32_xm0_xexec = S_MOV_B32 $exec_lo
   ; SI-NEXT: {{  $}}
   ; SI-NEXT: bb.2:
   ; SI-NEXT:   successors: %bb.3(0x80000000)
   ; SI-NEXT: {{  $}}
   ; SI-NEXT:   [[V_READFIRSTLANE_B32_:%[0-9]+]]:sgpr_32 = V_READFIRSTLANE_B32 [[REG_SEQUENCE2]].sub0, implicit $exec
   ; SI-NEXT:   [[V_READFIRSTLANE_B32_1:%[0-9]+]]:sgpr_32 = V_READFIRSTLANE_B32 [[REG_SEQUENCE2]].sub1, implicit $exec
   ; SI-NEXT:   [[REG_SEQUENCE3:%[0-9]+]]:sgpr_64 = REG_SEQUENCE [[V_READFIRSTLANE_B32_]], %subreg.sub0, [[V_READFIRSTLANE_B32_1]], %subreg.sub1

llvm/test/CodeGen/X86/unfoldMemoryOperand.mir

 body:             |
   ; CHECK-LABEL: name: _Z3foov
   ; CHECK: bb.0 (%ir-block.0):
   ; CHECK-NEXT:   successors: %bb.2(0x80000000)
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT:   renamable $eax = MOV32r0 implicit-def dead $eflags
   ; CHECK-NEXT:   renamable $rcx = MOV64ri32 -4096
   ; CHECK-NEXT:   [[MOV64ri32_:%[0-9]+]]:gr64 = MOV64ri32 -4096
-  ; CHECK-NEXT:   [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, @y, $noreg :: (dereferenceable load (s64) from @y, !tbaa !3)
+  ; CHECK-NEXT:   [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, @y, $noreg :: (dereferenceable invariant load (s64) from @y, !tbaa !3)
   ; CHECK-NEXT:   JMP_1 %bb.2
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT: bb.1 (%ir-block.4):
   ; CHECK-NEXT:   RET 0
   ; CHECK-NEXT: {{  $}}
   ; CHECK-NEXT: bb.2 (%ir-block.5):
   ; CHECK-NEXT:   successors: %bb.1(0x04000000), %bb.2(0x7c000000)
   ; CHECK-NEXT:   liveins: $eax, $rcx
bb.0 (%ir-block.0):
     renamable $rcx = MOV64ri32 -4096
     JMP_1 %bb.2
   bb.1 (%ir-block.4):
     RET 0
   bb.2 (%ir-block.5):
     successors: %bb.1(0x04000000), %bb.2(0x7c000000)
     liveins: $eax, $rcx
     %2:gr64 = MOV64ri32 -4096
-    CMP64mi32 $rip, 1, $noreg, @y, $noreg, @x, implicit-def $eflags :: (dereferenceable load (s64) from @y, !tbaa !3)
+    CMP64mi32 $rip, 1, $noreg, @y, $noreg, @x, implicit-def $eflags :: (dereferenceable invariant load (s64) from @y, !tbaa !3)
     renamable $al = SETCCr 4, implicit killed $eflags, implicit killed $eax, implicit-def $eax
     MOV32mr renamable $rcx, 1, $noreg, @z + 4096, $noreg, renamable $eax :: (store (s32) into %ir.scevgep, !tbaa !7)
     renamable $rcx = ADD64ri8 killed renamable $rcx, 4, implicit-def $eflags
     JCC_1 %bb.1, 4, implicit killed $eflags
     JMP_1 %bb.2
 
 ...