[InstCombine / BuildLibCalls] Add parameter attributes from the prototype.

[jonpa]

Summary

Currently only the calling convention is passed on from the prototype to the built call instruction. This patch also copies the parameter attributes.

This seems to be needed after D101806, which changed the instruction selector to only look at the call instruction parameter attributes, whereas before it also looked at the called function.

There are probably more places that needs a similar fix, like builtins..?

This makes the "verifier extension" (D103412) pass on SPEC17/SystemZ. Not sure if the returned value is checked by that patch or if they need a similar handling like the parameters?

[aeubanks]

I reverted that change and probably won't revisit it soon due to all these sorts of issues.
But this change looks good on its own

llvm/test/Transforms/InstCombine/libcall-param-attrs.ll

3

is this necessary?

[rnk]

+1

llvm/test/Transforms/InstCombine/libcall-param-attrs.ll

3

You should be able to pass -mtriple to make this test work.

[jonpa]

Thanks for review!

This was not quite complete to commit as it was a suggestion and there were still the tests updates to do...

I could update most of the tests with update_test_checks.py, and most of the remaining manually (not quite sure if the function attribute '#0' tag should be part of the test line or not, but I think it shouldn't matter).

However, there are now two remaining tests that the verifier rejects, but I am not quite sure how to fix them:

LLVM :: Transforms/InstCombine/strcpy_chk-1.ll
LLVM :: Transforms/InstCombine/strncpy_c

Instcombiner builds the memcpy, but this time the 'returned' attribute is included as a parameter attribute. That makes Verifier.cpp (line 1962) do the check (which it simply omitted before)

Assert(Ty->canLosslesslyBitCastTo(FT->getReturnType())

where Ty is '*i8', and FT->getReturnType() is 'void'.

There doesn't really seem to be an error as the call looks like

call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull returned ...

I suppose getReturnType() should in this case return '*i8' and not void. Or possibly the Verifier could be adapted to understand this check?

Given that the problematic patch was reverted, I wonder now if this is still relevant and needed and we should fix the above problem now?

[rnk]

I think the verifier is doing the right thing, I think it's a bug that @llvm.memcpy is carrying a returned attribute on the first argument. I'm not sure how that is happening, but whatever sets that up seems like a bug.

[jonpa]

In D103992#2814596, @rnk wrote:

I think the verifier is doing the right thing, I think it's a bug that @llvm.memcpy is carrying a returned attribute on the first argument. I'm not sure how that is happening, but whatever sets that up seems like a bug.

That was added by 8715e03 / https://reviews.llvm.org/D51092. I tried reverting that and got some test failures, whereof one in DeadStoreElimination, so it seems these are useful in some way...

@efriedma: You have any comment on how to proceed here (given you reviewed that revision)?

[efriedma]

D51092 is marking the libc memcpy function, which is correct. Not sure how the attribute is getting carried over to llvm.memcpy.

[jonpa]

D51092 is marking the libc memcpy function, which is correct. Not sure how the attribute is getting carried over to llvm.memcpy.

Ah, I see. This is what happened:

call i8* @__strcpy_chk

=> FortifiedLibCallSimplifier::optimizeStrpCpyChk =>

call i8* @strcpy(i8* noalias returned writeonly getelementptr inbounds...

=> optimizeStringMemoryLibCall() => optimizeStrCpy() => CreateMemCpy => 

*NewCI = CreateMemTransferInst(Intrinsic::memcpy);
NewCI->setAttributes(CI->getAttributes());

So the llvm.memcpy ends up taking the attributes from the created strcpy...

To remedy this, I made a new helper function takeAttributesFrom() that makes sure that attributes transferred onto llvm.memcpy has the Returned attribute removed if present. With that, the tests are passing.

Does this seem right, and if so, I suppose this should be done with the other intrinsics as well, e.g. after CreateMemSet()?

[efriedma]

Taking all the attributes from a call to one function and applying them to a call to a different function doesn't make sense to me. Different functions have different attributes.

There might be a few specific attributes that make sense to transfer, but you'd want to explicitly handle the specific attributes that are relevant. (For example, pointer alignment.)

[jonpa]

In D103992#2820880, @efriedma wrote:

Taking all the attributes from a call to one function and applying them to a call to a different function doesn't make sense to me. Different functions have different attributes.

There might be a few specific attributes that make sense to transfer, but you'd want to explicitly handle the specific attributes that are relevant. (For example, pointer alignment.)

It seems that all callers of CreateMemCpy() so far has assumed that taking the attributes of the original call is the right thing to do. The only change here is to not take the Returned attribute.

If this is incorrect, I suppose I should not create the helper function and just remove the Returned attribute where needed for now?

[efriedma]

Can we just completely skip transferring the attributes to the memcpy?

[rnk]

I agree, we probably need to better understand what attributes we are trying to transfer. My guess is that we are trying to transfer call site attributes, things like noinline, alwaysinline, or other things inferred by optimization. If the call's prototype changes, then copying argument attributes doesn't make any sense and we should re-evaluate doing it in the first place.

llvm/lib/Transforms/Utils/BuildLibCalls.cpp

1222

This change is fine: we are taking the attributes from a known callee.

llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

199

This seems questionable. Why not take the parameter attributes from NewCI's callee? What is the value of merging in the attributes from the old call?

[jonpa]

Can we just completely skip transferring the attributes to the memcpy?

I removed takeAttributesFrom() and this seemed to not make much of a difference at all, at least not on SPEC17/SystemZ (NFC). Some InstCombine tests changed though - not sure if that look ok or not...

There are also other calls, such as CreateMemSet()/CreateMemMove() that still take all the attributes in the same way from the original CallInst... Maybe these should be removed now as well, or are they different?

I see in LibCallSimplifier::optimizeStrNCpy() a transfer of the parameter attributes only, which may make sense though...

llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

199

Not sure if there could be any value of taking parameter attributes from the old call... It seems though that the call to CreateMemCpy already passes on explicit attributes (alignment), so I suppose that might be enough to do in that place?

Is there anything similar to inferLibFuncAttributes() for these intrinsics that we should use?

[rnk]

llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

1133–1134

This change makes this comment stale. I checked using blame, and this setAttributes call was added in rGe80fcf03407acd6429d07e4a45185ac546ffa37c by @xbolva00 to propagate the nonnull annotations. However, I don't see any changes to the tests that were added, so maybe we don't need this any longer. Maybe the attributes are present on the memcpy declaration already.

In conclusion, I think the change looks good, just remove this stale comment. @xbolva00 , feel free to check that logic.

[jonpa]

Stale comment removed

[jonpa]

llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

1133–1134

Removed (not sure about leaving the 'TODO'..?)

[rnk]

lgtm, go ahead and remove the TODO before landing

llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

1133–1134

The TODO was added in D95088, which you have removed the need for. I believe it can also be removed.

[aeubanks]

This is somehow adding the returned attribute to a memcpy intrinsic on mac: https://crbug.com/1223647.
I'll dig deeper tomorrow into what's going wrong

llvm/lib/Transforms/Utils/BuildLibCalls.cpp

 
 //- Emit LibCalls ------------------------------------------------------------//
 
 Value *llvm::castToCStr(Value *V, IRBuilderBase &B) {
   unsigned AS = V->getType()->getPointerAddressSpace();
   return B.CreateBitCast(V, B.getInt8PtrTy(AS), "cstr");
 }
 
+static void setCallingConvAndAttrs(CallInst *&CI, const Value *V) {
+  if (const Function *F = dyn_cast<Function>(V)) {
+    CI->setCallingConv(F->getCallingConv());
+    CI->setAttributes(F->getAttributes());
+  }
+}
+
 static Value *emitLibCall(LibFunc TheLibFunc, Type *ReturnType,
                           ArrayRef<Type *> ParamTypes,
                           ArrayRef<Value *> Operands, IRBuilderBase &B,
                           const TargetLibraryInfo *TLI,
                           bool IsVaArgs = false) {
   if (!TLI->has(TheLibFunc))
     return nullptr;
 
   Module *M = B.GetInsertBlock()->getModule();
   StringRef FuncName = TLI->getName(TheLibFunc);
   FunctionType *FuncType = FunctionType::get(ReturnType, ParamTypes, IsVaArgs);
   FunctionCallee Callee = M->getOrInsertFunction(FuncName, FuncType);
   inferLibFuncAttributes(M, FuncName, *TLI);
   CallInst *CI = B.CreateCall(Callee, Operands, FuncName);
-  if (const Function *F =
-          dyn_cast<Function>(Callee.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
+  setCallingConvAndAttrs(CI, Callee.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitStrLen(Value *Ptr, IRBuilderBase &B, const DataLayout &DL,
                         const TargetLibraryInfo *TLI) {
   LLVMContext &Context = B.GetInsertBlock()->getContext();
   return emitLibCall(LibFunc_strlen, DL.getIntPtrType(Context),
                      B.getInt8PtrTy(), castToCStr(Ptr, B), B, TLI);
Value *llvm::emitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize,
   LLVMContext &Context = B.GetInsertBlock()->getContext();
   FunctionCallee MemCpy = M->getOrInsertFunction(
       "__memcpy_chk", AttributeList::get(M->getContext(), AS), B.getInt8PtrTy(),
       B.getInt8PtrTy(), B.getInt8PtrTy(), DL.getIntPtrType(Context),
       DL.getIntPtrType(Context));
   Dst = castToCStr(Dst, B);
   Src = castToCStr(Src, B);
   CallInst *CI = B.CreateCall(MemCpy, {Dst, Src, Len, ObjSize});
-  if (const Function *F =
-          dyn_cast<Function>(MemCpy.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
+  setCallingConvAndAttrs(CI, MemCpy.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitMemPCpy(Value *Dst, Value *Src, Value *Len, IRBuilderBase &B,
                          const DataLayout &DL, const TargetLibraryInfo *TLI) {
   LLVMContext &Context = B.GetInsertBlock()->getContext();
   return emitLibCall(
       LibFunc_mempcpy, B.getInt8PtrTy(),
static Value *emitUnaryFloatFnCallHelper(Value *Op, StringRef Name,
   CallInst *CI = B.CreateCall(Callee, Op, Name);
 
   // The incoming attribute set may have come from a speculatable intrinsic, but
   // is being replaced with a library call which is not allowed to be
   // speculatable.
   CI->setAttributes(Attrs.removeAttribute(B.getContext(),
                                           AttributeList::FunctionIndex,
                                           Attribute::Speculatable));
-  if (const Function *F =
-          dyn_cast<Function>(Callee.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
-
+  setCallingConvAndAttrs(CI, Callee.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitUnaryFloatFnCall(Value *Op, StringRef Name, IRBuilderBase &B,
                                   const AttributeList &Attrs) {
   SmallString<20> NameBuffer;
   appendTypeSuffix(Op, Name, NameBuffer);
 
static Value *emitBinaryFloatFnCallHelper(Value *Op1, Value *Op2,
   CallInst *CI = B.CreateCall(Callee, { Op1, Op2 }, Name);
 
   // The incoming attribute set may have come from a speculatable intrinsic, but
   // is being replaced with a library call which is not allowed to be
   // speculatable.
   CI->setAttributes(Attrs.removeAttribute(B.getContext(),
                                           AttributeList::FunctionIndex,
                                           Attribute::Speculatable));
-  if (const Function *F =
-          dyn_cast<Function>(Callee.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
-
+  setCallingConvAndAttrs(CI, Callee.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitBinaryFloatFnCall(Value *Op1, Value *Op2, StringRef Name,
                                    IRBuilderBase &B,
                                    const AttributeList &Attrs) {
   assert((Name != "") && "Must specify Name to emitBinaryFloatFnCall");
 
Value *llvm::emitPutChar(Value *Char, IRBuilderBase &B,
   inferLibFuncAttributes(M, PutCharName, *TLI);
   CallInst *CI = B.CreateCall(PutChar,
                               B.CreateIntCast(Char,
                               B.getInt32Ty(),
                               /*isSigned*/true,
                               "chari"),
                               PutCharName);
 
-  if (const Function *F =
-          dyn_cast<Function>(PutChar.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
+  setCallingConvAndAttrs(CI, PutChar.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitPutS(Value *Str, IRBuilderBase &B,
                       const TargetLibraryInfo *TLI) {
   if (!TLI->has(LibFunc_puts))
     return nullptr;
 
   Module *M = B.GetInsertBlock()->getModule();
   StringRef PutsName = TLI->getName(LibFunc_puts);
   FunctionCallee PutS =
       M->getOrInsertFunction(PutsName, B.getInt32Ty(), B.getInt8PtrTy());
   inferLibFuncAttributes(M, PutsName, *TLI);
   CallInst *CI = B.CreateCall(PutS, castToCStr(Str, B), PutsName);
-  if (const Function *F =
-          dyn_cast<Function>(PutS.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
+  setCallingConvAndAttrs(CI, PutS.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitFPutC(Value *Char, Value *File, IRBuilderBase &B,
                        const TargetLibraryInfo *TLI) {
   if (!TLI->has(LibFunc_fputc))
     return nullptr;
 
   Module *M = B.GetInsertBlock()->getModule();
   StringRef FPutcName = TLI->getName(LibFunc_fputc);
   FunctionCallee F = M->getOrInsertFunction(FPutcName, B.getInt32Ty(),
                                             B.getInt32Ty(), File->getType());
   if (File->getType()->isPointerTy())
     inferLibFuncAttributes(M, FPutcName, *TLI);
   Char = B.CreateIntCast(Char, B.getInt32Ty(), /*isSigned*/true,
                          "chari");
   CallInst *CI = B.CreateCall(F, {Char, File}, FPutcName);
-
-  if (const Function *Fn =
-          dyn_cast<Function>(F.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(Fn->getCallingConv());
+  setCallingConvAndAttrs(CI, F.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitFPutS(Value *Str, Value *File, IRBuilderBase &B,
                        const TargetLibraryInfo *TLI) {
   if (!TLI->has(LibFunc_fputs))
     return nullptr;
 
   Module *M = B.GetInsertBlock()->getModule();
   StringRef FPutsName = TLI->getName(LibFunc_fputs);
   FunctionCallee F = M->getOrInsertFunction(FPutsName, B.getInt32Ty(),
                                             B.getInt8PtrTy(), File->getType());
   if (File->getType()->isPointerTy())
     inferLibFuncAttributes(M, FPutsName, *TLI);
   CallInst *CI = B.CreateCall(F, {castToCStr(Str, B), File}, FPutsName);
-
-  if (const Function *Fn =
-          dyn_cast<Function>(F.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(Fn->getCallingConv());
+  setCallingConvAndAttrs(CI, F.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitFWrite(Value *Ptr, Value *Size, Value *File, IRBuilderBase &B,
                         const DataLayout &DL, const TargetLibraryInfo *TLI) {
   if (!TLI->has(LibFunc_fwrite))
     return nullptr;
 
   Module *M = B.GetInsertBlock()->getModule();
   LLVMContext &Context = B.GetInsertBlock()->getContext();
   StringRef FWriteName = TLI->getName(LibFunc_fwrite);
   FunctionCallee F = M->getOrInsertFunction(
       FWriteName, DL.getIntPtrType(Context), B.getInt8PtrTy(),
       DL.getIntPtrType(Context), DL.getIntPtrType(Context), File->getType());
 
   if (File->getType()->isPointerTy())
     inferLibFuncAttributes(M, FWriteName, *TLI);
   CallInst *CI =
       B.CreateCall(F, {castToCStr(Ptr, B), Size,
                        ConstantInt::get(DL.getIntPtrType(Context), 1), File});
-
-  if (const Function *Fn =
-          dyn_cast<Function>(F.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(Fn->getCallingConv());
+  setCallingConvAndAttrs(CI, F.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitMalloc(Value *Num, IRBuilderBase &B, const DataLayout &DL,
                         const TargetLibraryInfo *TLI) {
   if (!TLI->has(LibFunc_malloc))
     return nullptr;
 
   Module *M = B.GetInsertBlock()->getModule();
   StringRef MallocName = TLI->getName(LibFunc_malloc);
   LLVMContext &Context = B.GetInsertBlock()->getContext();
   FunctionCallee Malloc = M->getOrInsertFunction(MallocName, B.getInt8PtrTy(),
                                                  DL.getIntPtrType(Context));
   inferLibFuncAttributes(M, MallocName, *TLI);
   CallInst *CI = B.CreateCall(Malloc, Num, MallocName);
-
-  if (const Function *F =
-          dyn_cast<Function>(Malloc.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
-
+  setCallingConvAndAttrs(CI, Malloc.getCallee()->stripPointerCasts());
   return CI;
 }
 
 Value *llvm::emitCalloc(Value *Num, Value *Size, const AttributeList &Attrs,
                         IRBuilderBase &B, const TargetLibraryInfo &TLI) {
   if (!TLI.has(LibFunc_calloc))
     return nullptr;
 
   Module *M = B.GetInsertBlock()->getModule();
   StringRef CallocName = TLI.getName(LibFunc_calloc);
   const DataLayout &DL = M->getDataLayout();
   IntegerType *PtrType = DL.getIntPtrType((B.GetInsertBlock()->getContext()));
   FunctionCallee Calloc = M->getOrInsertFunction(
       CallocName, Attrs, B.getInt8PtrTy(), PtrType, PtrType);
   inferLibFuncAttributes(M, CallocName, TLI);
   CallInst *CI = B.CreateCall(Calloc, {Num, Size}, CallocName);
-
-  if (const auto *F =
-          dyn_cast<Function>(Calloc.getCallee()->stripPointerCasts()))
-    CI->setCallingConv(F->getCallingConv());
-
+  setCallingConvAndAttrs(CI, Calloc.getCallee()->stripPointerCasts());
   return CI;
 }

llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

if (ConstantInt *LenC = dyn_cast<ConstantInt>(Size)) {
     uint64_t DerefMin = 1;
     if (match(Size, m_Select(m_Value(), m_APInt(X), m_APInt(Y)))) {
       DerefMin = std::min(X->getZExtValue(), Y->getZExtValue());
       annotateDereferenceableBytes(CI, ArgNos, DerefMin);
     }
   }
 }
 
+static void takeAttributesFrom(CallInst *NewCI, CallInst *OrigCI) {
+  NewCI->setAttributes(OrigCI->getAttributes());
+  NewCI->removeAttributes(AttributeList::ReturnIndex,
+                          AttributeFuncs::typeIncompatible(NewCI->getType()));
+  NewCI->removeParamAttr(0, Attribute::Returned);
+}
+
 //===----------------------------------------------------------------------===//
 // String and Memory Library Call Optimizations
 //===----------------------------------------------------------------------===//
 
 Value *LibCallSimplifier::optimizeStrCat(CallInst *CI, IRBuilderBase &B) {
   // Extract some information from the instruction
   Value *Dst = CI->getArgOperand(0);
   Value *Src = CI->getArgOperand(1);
Value *LibCallSimplifier::optimizeStrCpy(CallInst *CI, IRBuilderBase &B) {
   else
     return nullptr;
 
   // We have enough information to now generate the memcpy call to do the
   // copy for us.  Make a memcpy to copy the nul byte with align = 1.
   CallInst *NewCI =
       B.CreateMemCpy(Dst, Align(1), Src, Align(1),
                      ConstantInt::get(DL.getIntPtrType(CI->getContext()), Len));
-  NewCI->setAttributes(CI->getAttributes());
-  NewCI->removeAttributes(AttributeList::ReturnIndex,
-                          AttributeFuncs::typeIncompatible(NewCI->getType()));
+  takeAttributesFrom(NewCI, CI);
   return Dst;
 }
 
 Value *LibCallSimplifier::optimizeStpCpy(CallInst *CI, IRBuilderBase &B) {
   Function *Callee = CI->getCalledFunction();
   Value *Dst = CI->getArgOperand(0), *Src = CI->getArgOperand(1);
   if (Dst == Src) { // stpcpy(x,x)  -> x+strlen(x)
     Value *StrLen = emitStrLen(Src, B, DL, TLI);
Value *LibCallSimplifier::optimizeStpCpy(CallInst *CI, IRBuilderBase &B) {
   Type *PT = Callee->getFunctionType()->getParamType(0);
   Value *LenV = ConstantInt::get(DL.getIntPtrType(PT), Len);
   Value *DstEnd = B.CreateGEP(B.getInt8Ty(), Dst,
                               ConstantInt::get(DL.getIntPtrType(PT), Len - 1));
 
   // We have enough information to now generate the memcpy call to do the
   // copy for us.  Make a memcpy to copy the nul byte with align = 1.
   CallInst *NewCI = B.CreateMemCpy(Dst, Align(1), Src, Align(1), LenV);
-  NewCI->setAttributes(CI->getAttributes());
-  NewCI->removeAttributes(AttributeList::ReturnIndex,
-                          AttributeFuncs::typeIncompatible(NewCI->getType()));
+  takeAttributesFrom(NewCI, CI);
   return DstEnd;
 }
 
 Value *LibCallSimplifier::optimizeStrNCpy(CallInst *CI, IRBuilderBase &B) {
   Function *Callee = CI->getCalledFunction();
   Value *Dst = CI->getArgOperand(0);
   Value *Src = CI->getArgOperand(1);
   Value *Size = CI->getArgOperand(2);
if (Len <= 128) {
       return nullptr;
     }
   }
 
   Type *PT = Callee->getFunctionType()->getParamType(0);
   // strncpy(x, s, c) -> memcpy(align 1 x, align 1 s, c) [s and c are constant]
   CallInst *NewCI = B.CreateMemCpy(Dst, Align(1), Src, Align(1),
                                    ConstantInt::get(DL.getIntPtrType(PT), Len));
-  NewCI->setAttributes(CI->getAttributes());
-  NewCI->removeAttributes(AttributeList::ReturnIndex,
-                          AttributeFuncs::typeIncompatible(NewCI->getType()));
+  takeAttributesFrom(NewCI, CI);
   return Dst;
 }
 
 Value *LibCallSimplifier::optimizeStringLength(CallInst *CI, IRBuilderBase &B,
                                                unsigned CharSize) {
   Value *Src = CI->getArgOperand(0);
 
   // Constant folding: strlen("xyz") -> 3
Value *LibCallSimplifier::optimizeMemCpy(CallInst *CI, IRBuilderBase &B) {
   Value *Size = CI->getArgOperand(2);
   annotateNonNullAndDereferenceable(CI, {0, 1}, Size, DL);
   if (isa<IntrinsicInst>(CI))
     return nullptr;
 
   // memcpy(x, y, n) -> llvm.memcpy(align 1 x, align 1 y, n)
   CallInst *NewCI = B.CreateMemCpy(CI->getArgOperand(0), Align(1),
                                    CI->getArgOperand(1), Align(1), Size);
-  NewCI->setAttributes(CI->getAttributes());
-  NewCI->removeAttributes(AttributeList::ReturnIndex,
-                          AttributeFuncs::typeIncompatible(NewCI->getType()));
+  takeAttributesFrom(NewCI, CI);
   return CI->getArgOperand(0);
 }
 
 Value *LibCallSimplifier::optimizeMemCCpy(CallInst *CI, IRBuilderBase &B) {
   Value *Dst = CI->getArgOperand(0);
   Value *Src = CI->getArgOperand(1);
   ConstantInt *StopChar = dyn_cast<ConstantInt>(CI->getArgOperand(2));
   ConstantInt *N = dyn_cast<ConstantInt>(CI->getArgOperand(3));

 }
 
 Value *LibCallSimplifier::optimizeMemPCpy(CallInst *CI, IRBuilderBase &B) {
   Value *Dst = CI->getArgOperand(0);
   Value *N = CI->getArgOperand(2);
   // mempcpy(x, y, n) -> llvm.memcpy(align 1 x, align 1 y, n), x + n
   CallInst *NewCI =
       B.CreateMemCpy(Dst, Align(1), CI->getArgOperand(1), Align(1), N);
   // Propagate attributes, but memcpy has no return value, so make sure that
   // any return attributes are compliant.
   // TODO: Attach return value attributes to the 1st operand to preserve them?
-  NewCI->setAttributes(CI->getAttributes());
-  NewCI->removeAttributes(AttributeList::ReturnIndex,
-                          AttributeFuncs::typeIncompatible(NewCI->getType()));
+  takeAttributesFrom(NewCI, CI);
   return B.CreateInBoundsGEP(B.getInt8Ty(), Dst, N);
 }
 
 Value *LibCallSimplifier::optimizeMemMove(CallInst *CI, IRBuilderBase &B) {
   Value *Size = CI->getArgOperand(2);
   annotateNonNullAndDereferenceable(CI, {0, 1}, Size, DL);
   if (isa<IntrinsicInst>(CI))
     return nullptr;

 }
 
 Value *FortifiedLibCallSimplifier::optimizeMemCpyChk(CallInst *CI,
                                                      IRBuilderBase &B) {
   if (isFortifiedCallFoldable(CI, 3, 2)) {
     CallInst *NewCI =
         B.CreateMemCpy(CI->getArgOperand(0), Align(1), CI->getArgOperand(1),
                        Align(1), CI->getArgOperand(2));
-    NewCI->setAttributes(CI->getAttributes());
-    NewCI->removeAttributes(AttributeList::ReturnIndex,
-                            AttributeFuncs::typeIncompatible(NewCI->getType()));
+    takeAttributesFrom(NewCI, CI);
     return CI->getArgOperand(0);
   }
   return nullptr;
 }
 
 Value *FortifiedLibCallSimplifier::optimizeMemMoveChk(CallInst *CI,
                                                       IRBuilderBase &B) {
   if (isFortifiedCallFoldable(CI, 3, 2)) {

llvm/test/CodeGen/X86/no-plt-libcalls.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; Check if "RtLibUseGOT" works correctly when lib calls are simplified.
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 @percent_s = constant [4 x i8] c"%s\0A\00"
 @hello_world = constant [13 x i8] c"hello world\0A\00"
 declare i32 @printf(i8*, ...)
 define void @printf_call() {
 ; CHECK-LABEL: @printf_call(
-; CHECK-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i64 0, i64 0))
+; CHECK-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i64 0, i64 0)) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [4 x i8], [4 x i8]* @percent_s, i32 0, i32 0
   %str = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt, i8* %str)
   ret void
 }
 
 ; CHECK: Function Attrs: nofree nounwind nonlazybind
 ; CHECK-NEXT: declare noundef i32 @puts(i8* nocapture noundef readonly)
 
 !llvm.module.flags = !{!0}
 !0 = !{i32 7, !"RtLibUseGOT", i32 1}

llvm/test/Other/cgscc-libcall-update.ll

 bb:
   %tmp = alloca [1024 x i8], align 16
   %tmp2 = getelementptr inbounds [1024 x i8], [1024 x i8]* %tmp, i64 0, i64 0
   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp2, i8* %arg1, i64 1024, i1 false)
 ; CHECK:         call void @llvm.memcpy.p0i8.p0i8.i64(i8* noundef nonnull align 16 dereferenceable(1024) 
   %tmp3 = call i64 @llvm.objectsize.i64.p0i8(i8* %tmp2, i1 false, i1 true, i1 false)
   %tmp4 = call i8* @__strncpy_chk(i8* %arg2, i8* %tmp2, i64 1023, i64 %tmp3)
 ; CHECK-NOT:     call
-; CHECK:         call i8* @strncpy(i8* noundef nonnull dereferenceable(1) %arg2, i8* noundef nonnull dereferenceable(1) %tmp2, i64 1023)
-
+; CHECK:         call i8* @strncpy(i8* noalias noundef nonnull returned writeonly dereferenceable(1) %arg2, i8* noalias nocapture noundef nonnull readonly dereferenceable(1) %tmp2, i64 1023) #0
 ; CHECK-NOT:     call
 
   ret i8* %tmp4
 ; CHECK:         ret
 }
 
 define i8* @strncpy(i8* %arg1, i8* %arg2, i64 %size) noinline {
 bb:

llvm/test/Transforms/InstCombine/2010-05-30-memcpy-Struct.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -instcombine -S < %s | FileCheck %s
 ; PR7265
 
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-unknown-linux-gnu"
 
 %union.anon = type { i32, [4 x i8] }
 
 @.str = private constant [3 x i8] c"%s\00"
 
 define void @CopyEventArg(%union.anon* %ev) nounwind {
 ; CHECK-LABEL: @CopyEventArg(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[CSTR:%.*]] = bitcast %union.anon* [[EV:%.*]] to i8*
-; CHECK-NEXT:    [[STRCPY:%.*]] = call i8* @strcpy(i8* noundef nonnull dereferenceable(1) undef, i8* noundef nonnull dereferenceable(1) [[CSTR]])
+; CHECK-NEXT:    [[STRCPY:%.*]] = call i8* @strcpy(i8* noalias noundef nonnull returned writeonly dereferenceable(1) undef, i8* noalias nocapture noundef nonnull readonly dereferenceable(1) [[CSTR]]) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %call = call i32 (i8*, i8*, ...) @sprintf(i8* undef, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), %union.anon* %ev) nounwind
   ret void
 }
 
 declare i32 @sprintf(i8*, i8*, ...)
 

llvm/test/Transforms/InstCombine/ARM/strcmp.ll

;
   ret i32 %temp1
 }
 
 ; strcmp(x, y)   -> memcmp(x, y, <known length>)
 ; (This transform is rather difficult to trigger in a useful manner)
 define arm_aapcscc i32 @test5(i1 %b) {
 ; CHECK-LABEL: @test5(
 ; CHECK-NEXT:    [[STR2:%.*]] = select i1 [[B:%.*]], i8* getelementptr inbounds ([5 x i8], [5 x i8]* @hell, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bell, i32 0, i32 0)
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* noundef nonnull dereferenceable(5) [[STR2]], i32 5)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* nocapture noundef nonnull dereferenceable(5) [[STR2]], i32 5) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i32 [[MEMCMP]]
 ;
 
   %str1 = getelementptr inbounds [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %temp1 = getelementptr inbounds [5 x i8], [5 x i8]* @hell, i32 0, i32 0
   %temp2 = getelementptr inbounds [5 x i8], [5 x i8]* @bell, i32 0, i32 0
   %str2 = select i1 %b, i8* %temp1, i8* %temp2
   %temp3 = call arm_aapcscc i32 @strcmp(i8* %str1, i8* %str2)
;
   ret i32 %temp1
 }
 
 ; strcmp(x, y)   -> memcmp(x, y, <known length>)
 ; (This transform is rather difficult to trigger in a useful manner)
 define arm_aapcs_vfpcc i32 @test5_vfp(i1 %b) {
 ; CHECK-LABEL: @test5_vfp(
 ; CHECK-NEXT:    [[STR2:%.*]] = select i1 [[B:%.*]], i8* getelementptr inbounds ([5 x i8], [5 x i8]* @hell, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bell, i32 0, i32 0)
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* noundef nonnull dereferenceable(5) [[STR2]], i32 5)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* nocapture noundef nonnull dereferenceable(5) [[STR2]], i32 5) #[[ATTR0]]
 ; CHECK-NEXT:    ret i32 [[MEMCMP]]
 ;
 
   %str1 = getelementptr inbounds [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %temp1 = getelementptr inbounds [5 x i8], [5 x i8]* @hell, i32 0, i32 0
   %temp2 = getelementptr inbounds [5 x i8], [5 x i8]* @bell, i32 0, i32 0
   %str2 = select i1 %b, i8* %temp1, i8* %temp2
   %temp3 = call arm_aapcs_vfpcc i32 @strcmp(i8* %str1, i8* %str2)

llvm/test/Transforms/InstCombine/debug-line.ll

 ; RUN: opt -instcombine -S < %s | FileCheck %s
 
 
 @.str = private constant [3 x i8] c"%c\00"
 
 define void @foo() nounwind ssp !dbg !0 {
-;CHECK: call i32 @putchar{{.+}} !dbg
+;CHECK: call noundef i32 @putchar{{.+}} #1, !dbg
   %1 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i32 0, i32 0), i32 97), !dbg !5
   ret void, !dbg !7
 }
 
 declare i32 @printf(i8*, ...)
 
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!10}

llvm/test/Transforms/InstCombine/exp2-1.ll

 
 declare double @exp2(double)
 declare float @exp2f(float)
 
 ; Check exp2(sitofp(x)) -> ldexp(1.0, sext(x)).
 
 define double @test_simplify1(i32 %x) {
 ; LDEXP32-LABEL: @test_simplify1(
-; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[X:%.*]])
+; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[X:%.*]]) #[[ATTR1:[0-9]+]]
 ; LDEXP32-NEXT:    ret double [[LDEXP]]
 ;
 ; LDEXP16-LABEL: @test_simplify1(
 ; LDEXP16-NEXT:    [[CONV:%.*]] = sitofp i32 [[X:%.*]] to double
 ; LDEXP16-NEXT:    [[RET:%.*]] = call double @exp2(double [[CONV]])
 ; LDEXP16-NEXT:    ret double [[RET]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify1(
-; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[X:%.*]])
+; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[X:%.*]]) #[[ATTR1:[0-9]+]]
 ; NOLDEXPF-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXP-LABEL: @test_simplify1(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = sitofp i32 [[X:%.*]] to double
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call double @exp2(double [[CONV]])
 ; NOLDEXP-NEXT:    ret double [[RET]]
 ;
   %conv = sitofp i32 %x to double
   %ret = call double @exp2(double %conv)
   ret double %ret
 }
 
 define double @test_simplify2(i16 signext %x) {
 ; LDEXP32-LABEL: @test_simplify2(
 ; LDEXP32-NEXT:    [[TMP1:%.*]] = sext i16 [[X:%.*]] to i32
-; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret double [[LDEXP]]
 ;
 ; LDEXP16-LABEL: @test_simplify2(
-; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[X:%.*]])
+; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 signext [[X:%.*]]) #[[ATTR1:[0-9]+]]
 ; LDEXP16-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify2(
 ; NOLDEXPF-NEXT:    [[TMP1:%.*]] = sext i16 [[X:%.*]] to i32
-; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; NOLDEXPF-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXP-LABEL: @test_simplify2(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = sitofp i16 [[X:%.*]] to double
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call double @exp2(double [[CONV]])
 ; NOLDEXP-NEXT:    ret double [[RET]]
 ;
   %conv = sitofp i16 %x to double
   %ret = call double @exp2(double %conv)
   ret double %ret
 }
 
 define double @test_simplify3(i8 signext %x) {
 ; LDEXP32-LABEL: @test_simplify3(
 ; LDEXP32-NEXT:    [[TMP1:%.*]] = sext i8 [[X:%.*]] to i32
-; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret double [[LDEXP]]
 ;
 ; LDEXP16-LABEL: @test_simplify3(
 ; LDEXP16-NEXT:    [[TMP1:%.*]] = sext i8 [[X:%.*]] to i16
-; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[TMP1]])
+; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP16-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify3(
 ; NOLDEXPF-NEXT:    [[TMP1:%.*]] = sext i8 [[X:%.*]] to i32
-; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; NOLDEXPF-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXP-LABEL: @test_simplify3(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = sitofp i8 [[X:%.*]] to double
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call double @exp2(double [[CONV]])
 ; NOLDEXP-NEXT:    ret double [[RET]]
 ;
   %conv = sitofp i8 %x to double
   %ret = call double @exp2(double %conv)
   ret double %ret
 }
 
 define float @test_simplify4(i32 %x) {
 ; LDEXP32-LABEL: @test_simplify4(
-; LDEXP32-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 [[X:%.*]])
+; LDEXP32-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 signext [[X:%.*]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret float [[LDEXPF]]
 ;
 ; LDEXP16-LABEL: @test_simplify4(
 ; LDEXP16-NEXT:    [[CONV:%.*]] = sitofp i32 [[X:%.*]] to float
 ; LDEXP16-NEXT:    [[RET:%.*]] = call float @exp2f(float [[CONV]])
 ; LDEXP16-NEXT:    ret float [[RET]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify4(
;
   %conv = uitofp i32 %x to double
   %ret = call double @exp2(double %conv)
   ret double %ret
 }
 
 define double @test_simplify6(i16 zeroext %x) {
 ; LDEXP32-LABEL: @test_simplify6(
 ; LDEXP32-NEXT:    [[TMP1:%.*]] = zext i16 [[X:%.*]] to i32
-; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret double [[LDEXP]]
 ;
 ; LDEXP16-LABEL: @test_simplify6(
 ; LDEXP16-NEXT:    [[CONV:%.*]] = uitofp i16 [[X:%.*]] to double
 ; LDEXP16-NEXT:    [[RET:%.*]] = call double @exp2(double [[CONV]])
 ; LDEXP16-NEXT:    ret double [[RET]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify6(
 ; NOLDEXPF-NEXT:    [[TMP1:%.*]] = zext i16 [[X:%.*]] to i32
-; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; NOLDEXPF-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXP-LABEL: @test_simplify6(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = uitofp i16 [[X:%.*]] to double
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call double @exp2(double [[CONV]])
 ; NOLDEXP-NEXT:    ret double [[RET]]
 ;
   %conv = uitofp i16 %x to double
   %ret = call double @exp2(double %conv)
   ret double %ret
 }
 
 define double @test_simplify7(i8 zeroext %x) {
 ; LDEXP32-LABEL: @test_simplify7(
 ; LDEXP32-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32
-; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret double [[LDEXP]]
 ;
 ; LDEXP16-LABEL: @test_simplify7(
 ; LDEXP16-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16
-; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[TMP1]])
+; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP16-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify7(
 ; NOLDEXPF-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32
-; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; NOLDEXPF-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXP-LABEL: @test_simplify7(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = uitofp i8 [[X:%.*]] to double
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call double @exp2(double [[CONV]])
 ; NOLDEXP-NEXT:    ret double [[RET]]
 ;
   %conv = uitofp i8 %x to double
   %ret = call double @exp2(double %conv)
   ret double %ret
 }
 
 define float @test_simplify8(i8 zeroext %x) {
 ; LDEXP32-LABEL: @test_simplify8(
 ; LDEXP32-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32
-; LDEXP32-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 [[TMP1]])
+; LDEXP32-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret float [[LDEXPF]]
 ;
 ; LDEXP16-LABEL: @test_simplify8(
 ; LDEXP16-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16
-; LDEXP16-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 [[TMP1]])
+; LDEXP16-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP16-NEXT:    ret float [[LDEXPF]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify8(
 ; NOLDEXPF-NEXT:    [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float
 ; NOLDEXPF-NEXT:    [[RET:%.*]] = call float @exp2f(float [[CONV]])
 ; NOLDEXPF-NEXT:    ret float [[RET]]
 ;
 ; NOLDEXP-LABEL: @test_simplify8(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call float @exp2f(float [[CONV]])
 ; NOLDEXP-NEXT:    ret float [[RET]]
 ;
   %conv = uitofp i8 %x to float
   %ret = call float @exp2f(float %conv)
   ret float %ret
 }
 
 declare double @llvm.exp2.f64(double)
 declare float @llvm.exp2.f32(float)
 
 define double @test_simplify9(i8 zeroext %x) {
 ; LDEXP32-LABEL: @test_simplify9(
 ; LDEXP32-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32
-; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; LDEXP32-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret double [[LDEXP]]
 ;
 ; LDEXP16-LABEL: @test_simplify9(
 ; LDEXP16-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16
-; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 [[TMP1]])
+; LDEXP16-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i16 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP16-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify9(
 ; NOLDEXPF-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32
-; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 [[TMP1]])
+; NOLDEXPF-NEXT:    [[LDEXP:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; NOLDEXPF-NEXT:    ret double [[LDEXP]]
 ;
 ; NOLDEXP-LABEL: @test_simplify9(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = uitofp i8 [[X:%.*]] to double
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call double @llvm.exp2.f64(double [[CONV]])
 ; NOLDEXP-NEXT:    ret double [[RET]]
 ;
   %conv = uitofp i8 %x to double
   %ret = call double @llvm.exp2.f64(double %conv)
   ret double %ret
 }
 
 define float @test_simplify10(i8 zeroext %x) {
 ; LDEXP32-LABEL: @test_simplify10(
 ; LDEXP32-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i32
-; LDEXP32-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 [[TMP1]])
+; LDEXP32-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP32-NEXT:    ret float [[LDEXPF]]
 ;
 ; LDEXP16-LABEL: @test_simplify10(
 ; LDEXP16-NEXT:    [[TMP1:%.*]] = zext i8 [[X:%.*]] to i16
-; LDEXP16-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 [[TMP1]])
+; LDEXP16-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 signext [[TMP1]]) #[[ATTR1]]
 ; LDEXP16-NEXT:    ret float [[LDEXPF]]
 ;
 ; NOLDEXPF-LABEL: @test_simplify10(
 ; NOLDEXPF-NEXT:    [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float
 ; NOLDEXPF-NEXT:    [[RET:%.*]] = call float @llvm.exp2.f32(float [[CONV]])
 ; NOLDEXPF-NEXT:    ret float [[RET]]
 ;
 ; NOLDEXP-LABEL: @test_simplify10(
 ; NOLDEXP-NEXT:    [[CONV:%.*]] = uitofp i8 [[X:%.*]] to float
 ; NOLDEXP-NEXT:    [[RET:%.*]] = call float @llvm.exp2.f32(float [[CONV]])
 ; NOLDEXP-NEXT:    ret float [[RET]]
 ;
   %conv = uitofp i8 %x to float
   %ret = call float @llvm.exp2.f32(float %conv)
   ret float %ret
 }

llvm/test/Transforms/InstCombine/fdiv-cos-sin.ll

;
   %1 = call double @llvm.cos.f64(double %a)
   %2 = call reassoc double @llvm.sin.f64(double %a)
   %div = fdiv double %1, %2
   ret double %div
 }
 
 define double @fdiv_reassoc_cos_strict_sin_strict(double %a, i32* dereferenceable(2) %dummy) {
 ; CHECK-LABEL: @fdiv_reassoc_cos_strict_sin_strict(
-; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]]) #1
+; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]])
 ; CHECK-NEXT:    [[TMP1:%.*]] = fdiv reassoc double 1.000000e+00, [[TAN]]
 ; CHECK-NEXT:    ret double [[TMP1]]
 ;
   %1 = call double @llvm.cos.f64(double %a)
   %2 = call double @llvm.sin.f64(double %a)
   %div = fdiv reassoc double %1, %2
   ret double %div
 }
 
 define double @fdiv_reassoc_cos_reassoc_sin_strict(double %a) {
 ; CHECK-LABEL: @fdiv_reassoc_cos_reassoc_sin_strict(
-; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]]) #1
+; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]])
 ; CHECK-NEXT:    [[TMP1:%.*]] = fdiv reassoc double 1.000000e+00, [[TAN]]
 ; CHECK-NEXT:    ret double [[TMP1]]
 ;
   %1 = call reassoc double @llvm.cos.f64(double %a)
   %2 = call double @llvm.sin.f64(double %a)
   %div = fdiv reassoc double %1, %2
   ret double %div
 }
;
   %2 = call reassoc double @llvm.sin.f64(double %a)
   %div = fdiv reassoc double %1, %2
   call void @use(double %2)
   ret double %div
 }
 
 define double @fdiv_cos_sin_reassoc(double %a) {
 ; CHECK-LABEL: @fdiv_cos_sin_reassoc(
-; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]]) #1
+; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]])
 ; CHECK-NEXT:    [[TMP1:%.*]] = fdiv reassoc double 1.000000e+00, [[TAN]]
 ; CHECK-NEXT:    ret double [[TMP1]]
 ;
   %1 = call reassoc double @llvm.cos.f64(double %a)
   %2 = call reassoc double @llvm.sin.f64(double %a)
   %div = fdiv reassoc double %1, %2
   ret double %div
 }
 
 define half @fdiv_cosf16_sinf16_reassoc(half %a) {
 ; CHECK-LABEL: @fdiv_cosf16_sinf16_reassoc(
 ; CHECK-NEXT:    [[TMP1:%.*]] = call reassoc half @llvm.cos.f16(half [[A:%.*]])
 ; CHECK-NEXT:    [[TMP2:%.*]] = call reassoc half @llvm.sin.f16(half [[A]])
 ; CHECK-NEXT:    [[DIV:%.*]] = fdiv reassoc half [[TMP1]], [[TMP2]]
 ; CHECK-NEXT:    ret half [[DIV]]
 ;
   %1 = call reassoc half @llvm.cos.f16(half %a)
   %2 = call reassoc half @llvm.sin.f16(half %a)
   %div = fdiv reassoc half %1, %2
   ret half %div
 }
 
 define float @fdiv_cosf_sinf_reassoc(float %a) {
 ; CHECK-LABEL: @fdiv_cosf_sinf_reassoc(
-; CHECK-NEXT:    [[TANF:%.*]] = call reassoc float @tanf(float [[A:%.*]]) #1
+; CHECK-NEXT:    [[TANF:%.*]] = call reassoc float @tanf(float [[A:%.*]])
 ; CHECK-NEXT:    [[TMP1:%.*]] = fdiv reassoc float 1.000000e+00, [[TANF]]
 ; CHECK-NEXT:    ret float [[TMP1]]
 ;
   %1 = call reassoc float @llvm.cos.f32(float %a)
   %2 = call reassoc float @llvm.sin.f32(float %a)
   %div = fdiv reassoc float %1, %2
   ret float %div
 }
 
 define fp128 @fdiv_cosfp128_sinfp128_reassoc(fp128 %a) {
 ; CHECK-LABEL: @fdiv_cosfp128_sinfp128_reassoc(
-; CHECK-NEXT:    [[TANL:%.*]] = call reassoc fp128 @tanl(fp128 [[A:%.*]]) #1
+; CHECK-NEXT:    [[TANL:%.*]] = call reassoc fp128 @tanl(fp128 [[A:%.*]])
 ; CHECK-NEXT:    [[TMP1:%.*]] = fdiv reassoc fp128 0xL00000000000000003FFF000000000000, [[TANL]]
 ; CHECK-NEXT:    ret fp128 [[TMP1]]
 ;
   %1 = call reassoc fp128 @llvm.cos.fp128(fp128 %a)
   %2 = call reassoc fp128 @llvm.sin.fp128(fp128 %a)
   %div = fdiv reassoc fp128 %1, %2
   ret fp128 %div
 }

llvm/test/Transforms/InstCombine/fdiv-sin-cos.ll

;
   %1 = call double @llvm.sin.f64(double %a)
   %2 = call reassoc double @llvm.cos.f64(double %a)
   %div = fdiv double %1, %2
   ret double %div
 }
 
 define double @fdiv_reassoc_sin_strict_cos_strict(double %a, i32* dereferenceable(2) %dummy) {
 ; CHECK-LABEL: @fdiv_reassoc_sin_strict_cos_strict(
-; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]]) #1
+; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]])
 ; CHECK-NEXT:    ret double [[TAN]]
 ;
   %1 = call double @llvm.sin.f64(double %a)
   %2 = call double @llvm.cos.f64(double %a)
   %div = fdiv reassoc double %1, %2
   ret double %div
 }
 
 define double @fdiv_reassoc_sin_reassoc_cos_strict(double %a) {
 ; CHECK-LABEL: @fdiv_reassoc_sin_reassoc_cos_strict(
-; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]]) #1
+; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]])
 ; CHECK-NEXT:    ret double [[TAN]]
 ;
   %1 = call reassoc double @llvm.sin.f64(double %a)
   %2 = call double @llvm.cos.f64(double %a)
   %div = fdiv reassoc double %1, %2
   ret double %div
 }
 
;
   %2 = call reassoc double @llvm.cos.f64(double %a)
   %div = fdiv reassoc double %1, %2
   call void @use(double %2)
   ret double %div
 }
 
 define double @fdiv_sin_cos_reassoc(double %a) {
 ; CHECK-LABEL: @fdiv_sin_cos_reassoc(
-; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]]) #1
+; CHECK-NEXT:    [[TAN:%.*]] = call reassoc double @tan(double [[A:%.*]])
 ; CHECK-NEXT:    ret double [[TAN]]
 ;
   %1 = call reassoc double @llvm.sin.f64(double %a)
   %2 = call reassoc double @llvm.cos.f64(double %a)
   %div = fdiv reassoc double %1, %2
   ret double %div
 }
 
 define float @fdiv_sinf_cosf_reassoc(float %a) {
 ; CHECK-LABEL: @fdiv_sinf_cosf_reassoc(
-; CHECK-NEXT:    [[TANF:%.*]] = call reassoc float @tanf(float [[A:%.*]]) #1
+; CHECK-NEXT:    [[TANF:%.*]] = call reassoc float @tanf(float [[A:%.*]])
 ; CHECK-NEXT:    ret float [[TANF]]
 ;
   %1 = call reassoc float @llvm.sin.f32(float %a)
   %2 = call reassoc float @llvm.cos.f32(float %a)
   %div = fdiv reassoc float %1, %2
   ret float %div
 }
 
 define fp128 @fdiv_sinfp128_cosfp128_reassoc(fp128 %a) {
 ; CHECK-LABEL: @fdiv_sinfp128_cosfp128_reassoc(
-; CHECK-NEXT:    [[TANL:%.*]] = call reassoc fp128 @tanl(fp128 [[A:%.*]]) #1
+; CHECK-NEXT:    [[TANL:%.*]] = call reassoc fp128 @tanl(fp128 [[A:%.*]])
 ; CHECK-NEXT:    ret fp128 [[TANL]]
 ;
   %1 = call reassoc fp128 @llvm.sin.fp128(fp128 %a)
   %2 = call reassoc fp128 @llvm.cos.fp128(fp128 %a)
   %div = fdiv reassoc fp128 %1, %2
   ret fp128 %div
 }
 

llvm/test/Transforms/InstCombine/float-shrink-compare.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -instcombine < %s | FileCheck %s
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.8.0"
 
 define i1 @test1(float %x, float %y) {
 ; CHECK-LABEL: @test1(
-; CHECK-NEXT:    [[CEIL:%.*]] = call float @llvm.ceil.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[CEIL]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.ceil.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %ceil = call double @ceil(double %x.ext) nounwind readnone
   %ext.y = fpext float %y to double
   %cmp = fcmp oeq double %ceil, %ext.y
   ret i1 %cmp
 }
 
 define i1 @test1_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test1_intrin(
-; CHECK-NEXT:    [[CEIL:%.*]] = call float @llvm.ceil.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[CEIL]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.ceil.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %ceil = call double @llvm.ceil.f64(double %x.ext) nounwind readnone
   %ext.y = fpext float %y to double
   %cmp = fcmp oeq double %ceil, %ext.y
   ret i1 %cmp
 }
 
 define i1 @test2(float %x, float %y) {
 ; CHECK-LABEL: @test2(
-; CHECK-NEXT:    [[FABS:%.*]] = call float @llvm.fabs.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FABS]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.fabs.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %fabs = call double @fabs(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %fabs, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test2_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test2_intrin(
-; CHECK-NEXT:    [[FABS:%.*]] = call float @llvm.fabs.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FABS]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.fabs.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %fabs = call double @llvm.fabs.f64(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %fabs, %y.ext
   ret i1 %cmp
 }
 
 define i1 @fmf_test2(float %x, float %y) {
 ; CHECK-LABEL: @fmf_test2(
-; CHECK-NEXT:    [[TMP1:%.*]] = call nnan float @llvm.fabs.f32(float %x)
-; CHECK-NEXT:    [[TMP2:%.*]] = fcmp oeq float [[TMP1]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call nnan float @llvm.fabs.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[TMP2:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[TMP2]]
 ;
   %1 = fpext float %x to double
   %2 = call nnan double @fabs(double %1) nounwind readnone
   %3 = fpext float %y to double
   %4 = fcmp oeq double %2, %3
   ret i1 %4
 }
 
 define i1 @test3(float %x, float %y) {
 ; CHECK-LABEL: @test3(
-; CHECK-NEXT:    [[FLOOR:%.*]] = call float @llvm.floor.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FLOOR]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.floor.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %floor = call double @floor(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %floor, %y.ext
   ret i1 %cmp
 }
 
 
 define i1 @test3_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test3_intrin(
-; CHECK-NEXT:    [[FLOOR:%.*]] = call float @llvm.floor.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FLOOR]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.floor.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %floor = call double @llvm.floor.f64(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %floor, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test4(float %x, float %y) {
 ; CHECK-LABEL: @test4(
-; CHECK-NEXT:    [[NEARBYINT:%.*]] = call float @llvm.nearbyint.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[NEARBYINT]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.nearbyint.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %nearbyint = call double @nearbyint(double %x.ext) nounwind
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %nearbyint, %y.ext
   ret i1 %cmp
 }
 
 define i1 @shrink_nearbyint_intrin(float %x, float %y) {
 ; CHECK-LABEL: @shrink_nearbyint_intrin(
-; CHECK-NEXT:    [[NEARBYINT:%.*]] = call float @llvm.nearbyint.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[NEARBYINT]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.nearbyint.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %nearbyint = call double @llvm.nearbyint.f64(double %x.ext) nounwind
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %nearbyint, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test5(float %x, float %y) {
 ; CHECK-LABEL: @test5(
-; CHECK-NEXT:    [[RINT:%.*]] = call float @llvm.rint.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[RINT]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.rint.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %rint = call double @rint(double %x.ext) nounwind
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %rint, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test6(float %x, float %y) {
 ; CHECK-LABEL: @test6(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.round.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.round.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %round = call double @round(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %round, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test6_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test6_intrin(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.round.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.round.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %round = call double @llvm.round.f64(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %round, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test6a(float %x, float %y) {
 ; CHECK-LABEL: @test6a(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.roundeven.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.roundeven.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %round = call double @roundeven(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %round, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test6a_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test6a_intrin(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.roundeven.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.roundeven.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %round = call double @llvm.roundeven.f64(double %x.ext) nounwind readnone
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %round, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test7(float %x, float %y) {
 ; CHECK-LABEL: @test7(
-; CHECK-NEXT:    [[TRUNC:%.*]] = call float @llvm.trunc.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TRUNC]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.trunc.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %trunc = call double @trunc(double %x.ext) nounwind
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %trunc, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test7_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test7_intrin(
-; CHECK-NEXT:    [[TRUNC:%.*]] = call float @llvm.trunc.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TRUNC]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.trunc.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %trunc = call double @llvm.trunc.f64(double %x.ext) nounwind
   %y.ext = fpext float %y to double
   %cmp = fcmp oeq double %trunc, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test8(float %x, float %y) {
 ; CHECK-LABEL: @test8(
-; CHECK-NEXT:    [[CEIL:%.*]] = call float @llvm.ceil.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[CEIL]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.ceil.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %ceil = call double @ceil(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %ceil
   ret i1 %cmp
 }
 
 define i1 @test8_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test8_intrin(
-; CHECK-NEXT:    [[CEIL:%.*]] = call float @llvm.ceil.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[CEIL]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.ceil.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %ceil = call double @llvm.ceil.f64(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %ceil
   ret i1 %cmp
 }
 
 define i1 @test9(float %x, float %y) {
 ; CHECK-LABEL: @test9(
-; CHECK-NEXT:    [[FABS:%.*]] = call float @llvm.fabs.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FABS]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.fabs.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %fabs = call double @fabs(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %fabs
   ret i1 %cmp
 }
 
 define i1 @test9_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test9_intrin(
-; CHECK-NEXT:    [[FABS:%.*]] = call float @llvm.fabs.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FABS]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.fabs.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %fabs = call double @llvm.fabs.f64(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %fabs
   ret i1 %cmp
 }
 
 define i1 @test10(float %x, float %y) {
 ; CHECK-LABEL: @test10(
-; CHECK-NEXT:    [[FLOOR:%.*]] = call float @llvm.floor.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FLOOR]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.floor.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %floor = call double @floor(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %floor, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test10_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test10_intrin(
-; CHECK-NEXT:    [[FLOOR:%.*]] = call float @llvm.floor.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[FLOOR]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.floor.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %floor = call double @llvm.floor.f64(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %floor, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test11(float %x, float %y) {
 ; CHECK-LABEL: @test11(
-; CHECK-NEXT:    [[NEARBYINT:%.*]] = call float @llvm.nearbyint.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[NEARBYINT]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.nearbyint.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %nearbyint = call double @nearbyint(double %x.ext) nounwind
   %cmp = fcmp oeq double %nearbyint, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test11_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test11_intrin(
-; CHECK-NEXT:    [[NEARBYINT:%.*]] = call float @llvm.nearbyint.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[NEARBYINT]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.nearbyint.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %nearbyint = call double @llvm.nearbyint.f64(double %x.ext) nounwind
   %cmp = fcmp oeq double %nearbyint, %y.ext
   ret i1 %cmp
 }
 
 define i1 @test12(float %x, float %y) {
 ; CHECK-LABEL: @test12(
-; CHECK-NEXT:    [[RINT:%.*]] = call float @llvm.rint.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[RINT]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.rint.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %rint = call double @rint(double %x.ext) nounwind
   %cmp = fcmp oeq double %y.ext, %rint
   ret i1 %cmp
 }
 
 define i1 @test13(float %x, float %y) {
 ; CHECK-LABEL: @test13(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.round.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.round.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %round = call double @round(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %round
   ret i1 %cmp
 }
 
 define i1 @test13_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test13_intrin(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.round.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.round.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %round = call double @llvm.round.f64(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %round
   ret i1 %cmp
 }
 
 define i1 @test13a(float %x, float %y) {
 ; CHECK-LABEL: @test13a(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.roundeven.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.roundeven.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %round = call double @roundeven(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %round
   ret i1 %cmp
 }
 
 define i1 @test13a_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test13a_intrin(
-; CHECK-NEXT:    [[ROUND:%.*]] = call float @llvm.roundeven.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[ROUND]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.roundeven.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %round = call double @llvm.roundeven.f64(double %x.ext) nounwind readnone
   %cmp = fcmp oeq double %y.ext, %round
   ret i1 %cmp
 }
 
 define i1 @test14(float %x, float %y) {
 ; CHECK-LABEL: @test14(
-; CHECK-NEXT:    [[TRUNC:%.*]] = call float @llvm.trunc.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TRUNC]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.trunc.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %trunc = call double @trunc(double %x.ext) nounwind
   %cmp = fcmp oeq double %y.ext, %trunc
   ret i1 %cmp
 }
 
 define i1 @test14_intrin(float %x, float %y) {
 ; CHECK-LABEL: @test14_intrin(
-; CHECK-NEXT:    [[TRUNC:%.*]] = call float @llvm.trunc.f32(float %x)
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TRUNC]], %y
+; CHECK-NEXT:    [[TMP1:%.*]] = call float @llvm.trunc.f32(float [[X:%.*]])
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp oeq float [[TMP1]], [[Y:%.*]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %x.ext = fpext float %x to double
   %y.ext = fpext float %y to double
   %trunc = call double @llvm.trunc.f64(double %x.ext) nounwind
   %cmp = fcmp oeq double %y.ext, %trunc
   ret i1 %cmp
 }
;
   %3 = fpext float %y to double
   %4 = call double @fmax(double %2, double %3) nounwind
   %5 = fcmp oeq double %1, %4
   ret i1 %5
 }
 
 define i1 @test19(float %x, float %y, float %z) {
 ; CHECK-LABEL: @test19(
-; CHECK-NEXT:    [[COPYSIGNF:%.*]] = call float @copysignf(float %x, float %y) #0
-; CHECK-NEXT:    [[TMP1:%.*]] = fcmp oeq float [[COPYSIGNF]], %z
+; CHECK-NEXT:    [[COPYSIGNF:%.*]] = call float @copysignf(float [[X:%.*]], float [[Y:%.*]])
+; CHECK-NEXT:    [[TMP1:%.*]] = fcmp oeq float [[COPYSIGNF]], [[Z:%.*]]
 ; CHECK-NEXT:    ret i1 [[TMP1]]
 ;
   %1 = fpext float %x to double
   %2 = fpext float %y to double
   %3 = call double @copysign(double %1, double %2) nounwind
   %4 = fpext float %z to double
   %5 = fcmp oeq double %3, %4
   ret i1 %5

llvm/test/Transforms/InstCombine/fortify-folding.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
 
 @a = common global [60 x i8] zeroinitializer, align 1
 @b = common global [60 x i8] zeroinitializer, align 1
 @.str = private constant [12 x i8] c"abcdefghijk\00"
 
 %struct.__va_list_tag = type { i32, i32, i8*, i8* }
 
 define i8* @test_memccpy() {
 ; CHECK-LABEL: @test_memccpy(
-; CHECK-NEXT:    [[MEMCCPY:%.*]] = call i8* @memccpy(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i32 0, i64 60)
+; CHECK-NEXT:    [[MEMCCPY:%.*]] = call i8* @memccpy(i8* noalias writeonly getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* noalias nocapture readonly getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i32 0, i64 60) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i8* [[MEMCCPY]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i8* @__memccpy_chk(i8* %dst, i8* %src, i32 0, i64 60, i64 -1)
   ret i8* %ret
 }
 
;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i8* @__mempcpy_chk(i8* %dst, i8* %src, i64 60, i64 59)
   ret i8* %ret
 }
 
 define i32 @test_snprintf() {
 ; CHECK-LABEL: @test_snprintf(
-; CHECK-NEXT:    [[SNPRINTF:%.*]] = call i32 (i8*, i64, i8*, ...) @snprintf(i8* nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i64 60, i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0))
+; CHECK-NEXT:    [[SNPRINTF:%.*]] = call noundef i32 (i8*, i64, i8*, ...) @snprintf(i8* noalias nocapture noundef nonnull writeonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i64 noundef 60, i8* nocapture noundef readonly getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0)) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    ret i32 [[SNPRINTF]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %fmt = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i32 (i8*, i64, i32, i64, i8*, ...) @__snprintf_chk(i8* %dst, i64 60, i32 0, i64 -1, i8* %fmt)
   ret i32 %ret
 }
 
 define i32 @test_not_snprintf() {
 ; CHECK-LABEL: @test_not_snprintf(
 ; CHECK-NEXT:    [[RET:%.*]] = call i32 (i8*, i64, i32, i64, i8*, ...) @__snprintf_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i64 60, i32 0, i64 59, i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0))
 ; CHECK-NEXT:    [[IGN:%.*]] = call i32 (i8*, i64, i32, i64, i8*, ...) @__snprintf_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i64 60, i32 1, i64 -1, i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0))
 ; CHECK-NEXT:    ret i32 [[RET]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %fmt = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i32 (i8*, i64, i32, i64, i8*, ...) @__snprintf_chk(i8* %dst, i64 60, i32 0, i64 59, i8* %fmt)
   %ign = call i32 (i8*, i64, i32, i64, i8*, ...) @__snprintf_chk(i8* %dst, i64 60, i32 1, i64 -1, i8* %fmt)
   ret i32 %ret
 }
 
 define i32 @test_sprintf() {
 ; CHECK-LABEL: @test_sprintf(
-; CHECK-NEXT:    [[SPRINTF:%.*]] = call i32 (i8*, i8*, ...) @sprintf(i8* nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0))
+; CHECK-NEXT:    [[SPRINTF:%.*]] = call noundef i32 (i8*, i8*, ...) @sprintf(i8* noalias nocapture noundef nonnull writeonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0)) #[[ATTR1]]
 ; CHECK-NEXT:    ret i32 [[SPRINTF]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %fmt = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i32 (i8*, i32, i64, i8*, ...) @__sprintf_chk(i8* %dst, i32 0, i64 -1, i8* %fmt)
   ret i32 %ret
 }
 
 define i32 @test_not_sprintf() {
 ; CHECK-LABEL: @test_not_sprintf(
 ; CHECK-NEXT:    [[RET:%.*]] = call i32 (i8*, i32, i64, i8*, ...) @__sprintf_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i32 0, i64 59, i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0))
 ; CHECK-NEXT:    [[IGNORED:%.*]] = call i32 (i8*, i32, i64, i8*, ...) @__sprintf_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i32 1, i64 -1, i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0))
 ; CHECK-NEXT:    ret i32 [[RET]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %fmt = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i32 (i8*, i32, i64, i8*, ...) @__sprintf_chk(i8* %dst, i32 0, i64 59, i8* %fmt)
   %ignored = call i32 (i8*, i32, i64, i8*, ...) @__sprintf_chk(i8* %dst, i32 1, i64 -1, i8* %fmt)
   ret i32 %ret
 }
 
 define i8* @test_strcat() {
 ; CHECK-LABEL: @test_strcat(
-; CHECK-NEXT:    [[STRCAT:%.*]] = call i8* @strcat(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0))
+; CHECK-NEXT:    [[STRCAT:%.*]] = call i8* @strcat(i8* noalias noundef nonnull returned dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* noalias nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i8* @__strcat_chk(i8* %dst, i8* %src, i64 -1)
   ret i8* %ret
 }
 
 define i8* @test_not_strcat() {
 ; CHECK-LABEL: @test_not_strcat(
 ; CHECK-NEXT:    [[RET:%.*]] = call i8* @__strcat_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 0)
 ; CHECK-NEXT:    ret i8* [[RET]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i8* @__strcat_chk(i8* %dst, i8* %src, i64 0)
   ret i8* %ret
 }
 
 define i64 @test_strlcat() {
 ; CHECK-LABEL: @test_strlcat(
-; CHECK-NEXT:    [[STRLCAT:%.*]] = call i64 @strlcat(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22)
+; CHECK-NEXT:    [[STRLCAT:%.*]] = call i64 @strlcat(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22) #[[ATTR2:[0-9]+]]
 ; CHECK-NEXT:    ret i64 [[STRLCAT]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i64 @__strlcat_chk(i8* %dst, i8* %src, i64 22, i64 -1)
   ret i64 %ret
 }
 
 define i64 @test_not_strlcat() {
 ; CHECK-LABEL: @test_not_strlcat(
 ; CHECK-NEXT:    [[RET:%.*]] = call i64 @__strlcat_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22, i64 0)
 ; CHECK-NEXT:    ret i64 [[RET]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i64 @__strlcat_chk(i8* %dst, i8* %src, i64 22, i64 0)
   ret i64 %ret
 }
 
 define i8* @test_strncat() {
 ; CHECK-LABEL: @test_strncat(
-; CHECK-NEXT:    [[STRNCAT:%.*]] = call i8* @strncat(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22)
+; CHECK-NEXT:    [[STRNCAT:%.*]] = call i8* @strncat(i8* noalias noundef nonnull returned dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* noalias nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i8* @__strncat_chk(i8* %dst, i8* %src, i64 22, i64 -1)
   ret i8* %ret
 }
 
 define i8* @test_not_strncat() {
 ; CHECK-LABEL: @test_not_strncat(
 ; CHECK-NEXT:    [[RET:%.*]] = call i8* @__strncat_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22, i64 3)
 ; CHECK-NEXT:    ret i8* [[RET]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i8* @__strncat_chk(i8* %dst, i8* %src, i64 22, i64 3)
   ret i8* %ret
 }
 
 define i64 @test_strlcpy() {
 ; CHECK-LABEL: @test_strlcpy(
-; CHECK-NEXT:    [[STRLCPY:%.*]] = call i64 @strlcpy(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22)
+; CHECK-NEXT:    [[STRLCPY:%.*]] = call i64 @strlcpy(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22) #[[ATTR2]]
 ; CHECK-NEXT:    ret i64 [[STRLCPY]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i64 @__strlcpy_chk(i8* %dst, i8* %src, i64 22, i64 -1)
   ret i64 %ret
 }
 
 define i64 @test_not_strlcpy() {
 ; CHECK-LABEL: @test_not_strlcpy(
 ; CHECK-NEXT:    [[RET:%.*]] = call i64 @__strlcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), i64 22, i64 2)
 ; CHECK-NEXT:    ret i64 [[RET]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i64 @__strlcpy_chk(i8* %dst, i8* %src, i64 22, i64 2)
   ret i64 %ret
 }
 
 define i32 @test_vsnprintf() {
 ; CHECK-LABEL: @test_vsnprintf(
-; CHECK-NEXT:    [[VSNPRINTF:%.*]] = call i32 @vsnprintf(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i64 4, i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), %struct.__va_list_tag* null)
+; CHECK-NEXT:    [[VSNPRINTF:%.*]] = call noundef i32 @vsnprintf(i8* nocapture noundef getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i64 noundef 4, i8* nocapture noundef readonly getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), %struct.__va_list_tag* noundef null) #[[ATTR1]]
 ; CHECK-NEXT:    ret i32 [[VSNPRINTF]]
 ;
   ; ret i32
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i32 @__vsnprintf_chk(i8* %dst, i64 4, i32 0, i64 -1, i8* %src, %struct.__va_list_tag* null)
   ret i32 %ret
 }
;
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i32 @__vsnprintf_chk(i8* %dst, i64 4, i32 0, i64 3, i8* %src, %struct.__va_list_tag* null)
   %ign = call i32 @__vsnprintf_chk(i8* %dst, i64 4, i32 1, i64 -1, i8* %src, %struct.__va_list_tag* null)
   ret i32 %ret
 }
 
 define i32 @test_vsprintf() {
 ; CHECK-LABEL: @test_vsprintf(
-; CHECK-NEXT:    [[VSPRINTF:%.*]] = call i32 @vsprintf(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), %struct.__va_list_tag* null)
+; CHECK-NEXT:    [[VSPRINTF:%.*]] = call noundef i32 @vsprintf(i8* nocapture noundef getelementptr inbounds ([60 x i8], [60 x i8]* @a, i64 0, i64 0), i8* nocapture noundef readonly getelementptr inbounds ([60 x i8], [60 x i8]* @b, i64 0, i64 0), %struct.__va_list_tag* noundef null) #[[ATTR1]]
 ; CHECK-NEXT:    ret i32 [[VSPRINTF]]
 ;
   ; ret i32
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
   %ret = call i32 @__vsprintf_chk(i8* %dst, i32 0, i64 -1, i8* %src, %struct.__va_list_tag* null)
   ret i32 %ret
 }

llvm/test/Transforms/InstCombine/fprintf-1.ll

 declare i32 @fprintf(%FILE*, i8*, ...)
 
 ; Check fprintf(fp, "foo") -> fwrite("foo", 3, 1, fp).
 
 define void @test_simplify1(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify1(
   %fmt = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt)
-; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0), i32 12, i32 1, %FILE* %fp)
+; CHECK-NEXT:call noundef i32 @fwrite(i8* nocapture noundef getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0), i32 noundef 12, i32 noundef 1, %FILE* nocapture noundef %fp) #0
   ret void
 ; CHECK-NEXT: ret void
 }
 
 ; Check fprintf(fp, "%c", chr) -> fputc(chr, fp).
 
 define void @test_simplify2(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify2(
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_c, i32 0, i32 0
   call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt, i8 104)
-; CHECK-NEXT: call i32 @fputc(i32 104, %FILE* %fp)
+; CHECK-NEXT: call noundef i32 @fputc(i32 noundef 104, %FILE* nocapture noundef %fp) #0
   ret void
 ; CHECK-NEXT: ret void
 }
 
 ; Check fprintf(fp, "%s", str) -> fputs(str, fp).
 ; NOTE: The fputs simplifier simplifies this further to fwrite.
 
 define void @test_simplify3(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify3(
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_s, i32 0, i32 0
   %str = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt, i8* %str)
-; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0), i32 12, i32 1, %FILE* %fp)
+; CHECK-NEXT: call noundef i32 @fwrite(i8* nocapture noundef getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0), i32 noundef 12, i32 noundef 1, %FILE* nocapture noundef %fp) #0
   ret void
 ; CHECK-NEXT: ret void
 }
 
 ; Check fprintf(fp, fmt, ...) -> fiprintf(fp, fmt, ...) if no floating point.
 
 define void @test_simplify4(%FILE* %fp) {
 ; CHECK-IPRINTF-LABEL: @test_simplify4(
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_d, i32 0, i32 0
   call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt, i32 187)
 ; CHECK-IPRINTF-NEXT: call i32 (%FILE*, i8*, ...) @fiprintf(%FILE* %fp, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @percent_d, i32 0, i32 0), i32 187)
   ret void
 ; CHECK-IPRINTF-NEXT: ret void
 }
 
 define void @test_simplify5(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify5(
   %fmt = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt) [ "deopt"() ]
-; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0), i32 12, i32 1, %FILE* %fp) [ "deopt"() ]
+; CHECK-NEXT: call noundef i32 @fwrite(i8* nocapture noundef getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0), i32 noundef 12, i32 noundef 1, %FILE* nocapture noundef %fp) #0
   ret void
 ; CHECK-NEXT: ret void
 }
 
 define void @test_no_simplify1(%FILE* %fp) {
 ; CHECK-IPRINTF-LABEL: @test_no_simplify1(
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_f, i32 0, i32 0
   call i32 (%FILE*, i8*, ...) @fprintf(%FILE* %fp, i8* %fmt, double 1.87)

llvm/test/Transforms/InstCombine/fputs-1.ll

 }
 
 ; NOTE: The fwrite simplifier simplifies this further to fputc.
 
 define void @test_simplify2(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify2(
   %str = getelementptr [2 x i8], [2 x i8]* @A, i32 0, i32 0
   call i32 @fputs(i8* %str, %FILE* %fp)
-; CHECK-NEXT: call i32 @fputc(i32 65, %FILE* %fp)
+; CHECK-NEXT: call noundef i32 @fputc(i32 noundef 65, %FILE* nocapture noundef %fp) #0
   ret void
 ; CHECK-NEXT: ret void
 }
 
 define void @test_simplify3(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify3(
   %str = getelementptr [7 x i8], [7 x i8]* @hello, i32 0, i32 0
   call i32 @fputs(i8* %str, %FILE* %fp)
-; CHECK-NEXT: call i32 @fwrite(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @hello, i32 0, i32 0), i32 6, i32 1, %FILE* %fp)
+; CHECK-NEXT: call noundef i32 @fwrite(i8* nocapture noundef getelementptr inbounds ([7 x i8], [7 x i8]* @hello, i32 0, i32 0), i32 noundef 6, i32 noundef 1, %FILE* nocapture noundef %fp) #0
   ret void
 ; CHECK-NEXT: ret void
 }

llvm/test/Transforms/InstCombine/fputs-opt-size.ll

 attributes #1 = { nounwind optsize  }
 
 define i32 @main_pgso() local_unnamed_addr !prof !14 {
 entry:
 ; PGSO-LABEL: @main_pgso(
 ; PGSO-NOT: call i64 @fwrite
 ; PGSO: call i32 @fputs
 ; NPGSO-LABEL: @main_pgso(
-; NPGSO: call i64 @fwrite
+; NPGSO: call noundef i64 @fwrite
 ; NPGSO-NOT: call i32 @fputs
 
   %call = tail call %struct._IO_FILE* @fopen(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i32 0, i32 0)) #2
   %call1 = tail call i32 @fputs(i8* getelementptr inbounds ([27 x i8], [27 x i8]* @.str.2, i32 0, i32 0), %struct._IO_FILE* %call) #2
   ret i32 0
 }
 
 !llvm.module.flags = !{!0}

llvm/test/Transforms/InstCombine/fwrite-1.ll

 declare i64 @fwrite(i8*, i64, i64, %FILE *)
 
 ; Check fwrite(S, 1, 1, fp) -> fputc(S[0], fp).
 
 define void @test_simplify1(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify1(
   %str = getelementptr inbounds [1 x i8], [1 x i8]* @str, i64 0, i64 0
   call i64 @fwrite(i8* %str, i64 1, i64 1, %FILE* %fp)
-; CHECK-NEXT: call i32 @fputc(i32 0, %FILE* %fp)
+; CHECK-NEXT: call noundef i32 @fputc(i32 noundef 0, %FILE* nocapture noundef %fp) #0
   ret void
 ; CHECK-NEXT: ret void
 }
 
 define void @test_simplify2(%FILE* %fp) {
 ; CHECK-LABEL: @test_simplify2(
   %str = getelementptr inbounds [0 x i8], [0 x i8]* @empty, i64 0, i64 0
   call i64 @fwrite(i8* %str, i64 1, i64 0, %FILE* %fp)

llvm/test/Transforms/InstCombine/libcall-param-attrs.ll

+; RUN: opt < %s -mtriple=s390x-linux-gnu -instcombine -S | FileCheck %s
+;
+; Check that instcombiner creates libcalls with parameter extensions per the
+; prototype.
+
+declare dso_local i8* @strchr(i8*, i32) local_unnamed_addr #1
+declare dso_local i8* @memchr(i8*, i32 signext, i64)
+declare void @llvm.assume(i1 noundef)
+@0 = private unnamed_addr constant [21 x i8] c"000000000000000000000", align 2
+define void @fun0(i32 %arg1) {
+; CHECK: define void @fun0
+; CHECK: call i8* @memchr{{.*}}, i32 signext %arg1, i64 22) #0
+bb:
+  %i = call i8* @strchr(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @0, i64 0, i64 0), i32 signext %arg1)
+  %i3 = icmp ne i8* %i, null
+  call void @llvm.assume(i1 %i3)
+  ret void
+}
+
+declare dso_local double @pow(double, double)
+define void @fun1(i32* %i5) {
+; CHECK: define void @fun1
+; CHECK: call double @ldexp{{.*}}, i32 signext %i19) #2
+bb:
+  %i19 = load i32, i32* %i5, align 4
+  %i20 = sitofp i32 %i19 to double
+  %i21 = call double @pow(double 2.000000e+00, double %i20)
+  ret void
+}

llvm/test/Transforms/InstCombine/memcmp-1.ll

 
 define i1 @test_simplify10(i8* %mem1, i8* %mem2, i32 %size) {
 ; NOBCMP-LABEL: @test_simplify10(
 ; NOBCMP-NEXT:    [[CALL:%.*]] = call i32 @memcmp(i8* %mem1, i8* %mem2, i32 %size)
 ; NOBCMP-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
 ; NOBCMP-NEXT:    ret i1 [[CMP]]
 ;
 ; BCMP-LABEL: @test_simplify10(
-; BCMP-NEXT:    [[CALL:%.*]] = call i32 @bcmp(i8* %mem1, i8* %mem2, i32 %size)
+; BCMP-NEXT:    [[CALL:%.*]] = call i32 @bcmp(i8* nocapture %mem1, i8* nocapture %mem2, i32 %size) #0
 ; BCMP-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
 ; BCMP-NEXT:    ret i1 [[CMP]]
 ;
   %call = call i32 @memcmp(i8* %mem1, i8* %mem2, i32 %size)
   %cmp = icmp eq i32 %call, 0
   ret i1 %cmp
 }

llvm/test/Transforms/InstCombine/memset-1.ll

 ; CHECK-NEXT:    ret i8* [[MEM]]
 ;
   %ret = call i8* @memset(i8* %mem, i32 %val, i32 %size)
   ret i8* %ret
 }
 
 define i8* @pr25892_lite(i32 %size) #0 {
 ; CHECK-LABEL: @pr25892_lite(
-; CHECK-NEXT:    [[CALLOC:%.*]] = call i8* @calloc(i32 1, i32 [[SIZE:%.*]])
+; CHECK-NEXT:    [[CALLOC:%.*]] = call noalias noundef i8* @calloc(i32 noundef 1, i32 noundef [[SIZE:%.*]]) #[[ATTR3:[0-9]+]]
 ; CHECK-NEXT:    ret i8* [[CALLOC]]
 ;
   %call1 = call i8* @malloc(i32 %size) #1
   %call2 = call i8* @memset(i8* %call1, i32 0, i32 %size) #1
   ret i8* %call2
 }
 
 ; FIXME: A memset intrinsic should be handled similarly to a memset() libcall.
 
 define i8* @malloc_and_memset_intrinsic(i32 %n) #0 {
 ; CHECK-LABEL: @malloc_and_memset_intrinsic(
 ; CHECK-NEXT:    [[CALL:%.*]] = call i8* @malloc(i32 [[N:%.*]])
 ; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* align 1 [[CALL]], i8 0, i32 [[N]], i1 false)
 ; CHECK-NEXT:    ret i8* [[CALL]]
 ;
   %call = call i8* @malloc(i32 %n)
   call void @llvm.memset.p0i8.i32(i8* %call, i8 0, i32 %n, i32 1, i1 false)
   ret i8* %call
 }
 
 ; This should not create a calloc and should not crash the compiler.
 
 define i8* @notmalloc_memset(i32 %size, i8*(i32)* %notmalloc) {
 ; CHECK-LABEL: @notmalloc_memset(
-; CHECK-NEXT:    [[CALL1:%.*]] = call i8* [[NOTMALLOC:%.*]](i32 [[SIZE:%.*]]) [[ATTR0:#.*]]
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* align 1 [[CALL1]], i8 0, i32 [[SIZE]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    [[CALL1:%.*]] = call i8* [[NOTMALLOC:%.*]](i32 [[SIZE:%.*]]) #[[ATTR0:[0-9]+]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* align 1 [[CALL1]], i8 0, i32 [[SIZE]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[CALL1]]
 ;
   %call1 = call i8* %notmalloc(i32 %size) #1
   %call2 = call i8* @memset(i8* %call1, i32 0, i32 %size) #1
   ret i8* %call2
 }
 
 ; FIXME: memset(malloc(x), 0, x) -> calloc(1, x)
 ; This doesn't fire currently because the malloc has more than one use.
 
 define float* @pr25892(i32 %size) #0 {
 ; CHECK-LABEL: @pr25892(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[CALL:%.*]] = tail call i8* @malloc(i32 [[SIZE:%.*]]) [[ATTR0]]
+; CHECK-NEXT:    [[CALL:%.*]] = tail call i8* @malloc(i32 [[SIZE:%.*]]) #[[ATTR0]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i8* [[CALL]], null
 ; CHECK-NEXT:    br i1 [[CMP]], label [[CLEANUP:%.*]], label [[IF_END:%.*]]
 ; CHECK:       if.end:
 ; CHECK-NEXT:    [[BC:%.*]] = bitcast i8* [[CALL]] to float*
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 [[CALL]], i8 0, i32 [[SIZE]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 [[CALL]], i8 0, i32 [[SIZE]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    br label [[CLEANUP]]
 ; CHECK:       cleanup:
 ; CHECK-NEXT:    [[RETVAL_0:%.*]] = phi float* [ [[BC]], [[IF_END]] ], [ null, [[ENTRY:%.*]] ]
 ; CHECK-NEXT:    ret float* [[RETVAL_0]]
 ;
 entry:
   %call = tail call i8* @malloc(i32 %size) #1
   %cmp = icmp eq i8* %call, null
   br i1 %cmp, label %cleanup, label %if.end
 if.end:
   %bc = bitcast i8* %call to float*
   %call2 = tail call i8* @memset(i8* nonnull %call, i32 0, i32 %size) #1
   br label %cleanup
 cleanup:
   %retval.0 = phi float* [ %bc, %if.end ], [ null, %entry ]
   ret float* %retval.0
 }
 
 ; If there's a calloc transform, the store must also be eliminated.
 
 define i8* @buffer_is_modified_then_memset(i32 %size) {
 ; CHECK-LABEL: @buffer_is_modified_then_memset(
-; CHECK-NEXT:    [[PTR:%.*]] = tail call i8* @malloc(i32 [[SIZE:%.*]]) [[ATTR0]]
+; CHECK-NEXT:    [[PTR:%.*]] = tail call i8* @malloc(i32 [[SIZE:%.*]]) #[[ATTR0]]
 ; CHECK-NEXT:    store i8 1, i8* [[PTR]], align 1
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 [[PTR]], i8 0, i32 [[SIZE]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 [[PTR]], i8 0, i32 [[SIZE]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %ptr = tail call i8* @malloc(i32 %size) #1
   store i8 1, i8* %ptr           ;; fdata[0] = 1;
   %memset = tail call i8* @memset(i8* nonnull %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 define i8* @memset_size_select(i1 %b, i8* %ptr) {
 ; CHECK-LABEL: @memset_size_select(
 ; CHECK-NEXT:    [[SIZE:%.*]] = select i1 [[B:%.*]], i32 10, i32 50
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(10) [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(10) [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %size = select i1 %b, i32 10, i32 50
   %memset = tail call i8* @memset(i8* nonnull %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 
 define i8* @memset_size_select2(i1 %b, i8* %ptr) {
 ; CHECK-LABEL: @memset_size_select2(
 ; CHECK-NEXT:    [[SIZE:%.*]] = select i1 [[B:%.*]], i32 10, i32 50
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(80) [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(80) [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %size = select i1 %b, i32 10, i32 50
   %memset = tail call i8* @memset(i8* nonnull dereferenceable(80) %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 define i8* @memset_size_select3(i1 %b, i8* %ptr) {
 ; CHECK-LABEL: @memset_size_select3(
 ; CHECK-NEXT:    [[SIZE:%.*]] = select i1 [[B:%.*]], i32 10, i32 50
 ; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(40) [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false)
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %size = select i1 %b, i32 10, i32 50
   %memset = tail call i8* @memset(i8* dereferenceable_or_null(40) %ptr, i32 0, i32 %size)
   ret i8* %memset
 }
 
 define i8* @memset_size_select4(i1 %b, i8* %ptr) {
 ; CHECK-LABEL: @memset_size_select4(
 ; CHECK-NEXT:    [[SIZE:%.*]] = select i1 [[B:%.*]], i32 10, i32 50
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(40) [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(40) [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %size = select i1 %b, i32 10, i32 50
   %memset = tail call i8* @memset(i8* nonnull dereferenceable_or_null(40) %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 define i8* @memset_size_ashr(i1 %b, i8* %ptr, i32 %v) {
 ; CHECK-LABEL: @memset_size_ashr(
 ; CHECK-NEXT:    [[SIZE:%.*]] = ashr i32 -2, [[V:%.*]]
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 1 [[PTR:%.*]], i8 0, i32 [[SIZE]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %size = ashr i32 -2, %v
   %memset = tail call i8* @memset(i8* nonnull %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 define i8* @memset_attrs1(i1 %b, i8* %ptr, i32 %size) {
 ; CHECK-LABEL: @memset_attrs1(
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* align 1 dereferenceable_or_null(40) [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* align 1 dereferenceable_or_null(40) [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %memset = tail call i8* @memset(i8* dereferenceable_or_null(40) %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 ; be sure to drop nonnull since size is unknown and can be 0
 ; do not change dereferenceable attribute
 define i8* @memset_attrs2(i1 %b, i8* %ptr, i32 %size) {
 ; CHECK-LABEL: @memset_attrs2(
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 dereferenceable(40) [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 dereferenceable(40) [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %memset = tail call i8* @memset(i8* nonnull dereferenceable(40) %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 ; size is unknown, just copy attrs, no changes in attrs
 define i8* @memset_attrs3(i1 %b, i8* %ptr, i32 %size) {
 ; CHECK-LABEL: @memset_attrs3(
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 dereferenceable_or_null(40) [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 dereferenceable_or_null(40) [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %memset = tail call i8* @memset(i8* nonnull dereferenceable_or_null(40) %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 ; be sure to drop nonnull since size is unknown and can be 0
 define i8* @memset_attrs4(i1 %b, i8* %ptr, i32 %size) {
 ; CHECK-LABEL: @memset_attrs4(
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* nonnull align 1 [[PTR:%.*]], i8 0, i32 [[SIZE:%.*]], i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[PTR]]
 ;
   %memset = tail call i8* @memset(i8* nonnull %ptr, i32 0, i32 %size) #1
   ret i8* %memset
 }
 
 define i8* @test_no_incompatible_attr(i8* %mem, i32 %val, i32 %size) {
 ; CHECK-LABEL: @test_no_incompatible_attr(

llvm/test/Transforms/InstCombine/memset_chk-1.ll

 ; Test that RAUW in SimplifyLibCalls for __memset_chk generates valid IR
 define i32 @test_rauw(i8* %a, i8* %b, i8** %c) {
 ; CHECK-LABEL: @test_rauw(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[CALL49:%.*]] = call i64 @strlen(i8* noundef nonnull dereferenceable(1) [[A:%.*]])
 ; CHECK-NEXT:    [[ADD180:%.*]] = add i64 [[CALL49]], 1
 ; CHECK-NEXT:    [[YO107:%.*]] = call i64 @llvm.objectsize.i64.p0i8(i8* [[B:%.*]], i1 false, i1 false, i1 false)
 ; CHECK-NEXT:    [[CALL50:%.*]] = call i8* @__memmove_chk(i8* [[B]], i8* [[A]], i64 [[ADD180]], i64 [[YO107]])
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i64 @strlen(i8* noundef nonnull dereferenceable(1) [[B]])
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i64 @strlen(i8* nocapture noundef nonnull dereferenceable(1) [[B]]) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    [[STRCHR1:%.*]] = getelementptr i8, i8* [[B]], i64 [[STRLEN]]
 ; CHECK-NEXT:    [[D:%.*]] = load i8*, i8** [[C:%.*]], align 8
 ; CHECK-NEXT:    [[SUB182:%.*]] = ptrtoint i8* [[D]] to i64
 ; CHECK-NEXT:    [[SUB183:%.*]] = ptrtoint i8* [[B]] to i64
 ; CHECK-NEXT:    [[SUB184:%.*]] = sub i64 [[SUB182]], [[SUB183]]
 ; CHECK-NEXT:    [[ADD52_I_I:%.*]] = add nsw i64 [[SUB184]], 1
 ; CHECK-NEXT:    call void @llvm.memset.p0i8.i64(i8* align 1 [[STRCHR1]], i8 0, i64 [[ADD52_I_I]], i1 false)
 ; CHECK-NEXT:    ret i32 4

 
 declare i8* @__memset_chk(i8*, i32, i64, i64)
 
 ; FIXME: memset(malloc(x), 0, x) -> calloc(1, x)
 
 define float* @pr25892(i64 %size) #0 {
 ; CHECK-LABEL: @pr25892(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[CALL:%.*]] = tail call i8* @malloc(i64 [[SIZE:%.*]]) [[ATTR3:#.*]]
+; CHECK-NEXT:    [[CALL:%.*]] = tail call i8* @malloc(i64 [[SIZE:%.*]]) #[[ATTR3:[0-9]+]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i8* [[CALL]], null
 ; CHECK-NEXT:    br i1 [[CMP]], label [[CLEANUP:%.*]], label [[IF_END:%.*]]
 ; CHECK:       if.end:
 ; CHECK-NEXT:    [[BC:%.*]] = bitcast i8* [[CALL]] to float*
 ; CHECK-NEXT:    [[CALL2:%.*]] = tail call i64 @llvm.objectsize.i64.p0i8(i8* nonnull [[CALL]], i1 false, i1 false, i1 false)
-; CHECK-NEXT:    [[CALL3:%.*]] = tail call i8* @__memset_chk(i8* nonnull [[CALL]], i32 0, i64 [[SIZE]], i64 [[CALL2]]) [[ATTR3]]
+; CHECK-NEXT:    [[CALL3:%.*]] = tail call i8* @__memset_chk(i8* nonnull [[CALL]], i32 0, i64 [[SIZE]], i64 [[CALL2]]) #[[ATTR3]]
 ; CHECK-NEXT:    br label [[CLEANUP]]
 ; CHECK:       cleanup:
 ; CHECK-NEXT:    [[RETVAL_0:%.*]] = phi float* [ [[BC]], [[IF_END]] ], [ null, [[ENTRY:%.*]] ]
 ; CHECK-NEXT:    ret float* [[RETVAL_0]]
 ;
 entry:
   %call = tail call i8* @malloc(i64 %size) #1
   %cmp = icmp eq i8* %call, null

llvm/test/Transforms/InstCombine/objsize.ll

 "46":                                             ; preds = %entry
   unreachable
 
 "47":                                             ; preds = %entry
   unreachable
 }
 
 @.str5 = private constant [9 x i32] [i32 97, i32 98, i32 99, i32 100, i32 0, i32
   101, i32 102, i32 103, i32 0], align 4
 define i32 @test2() nounwind {
 ; CHECK-LABEL: @test2(
 ; CHECK-NEXT:    ret i32 34
 ;
   %1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr (i8, i8* bitcast ([9 x i32]* @.str5 to i8*), i32 2), i1 false, i1 false, i1 false)
   ret i32 %1
 }
 

 
 define void @test3() nounwind {
 ; CHECK-LABEL: @test3(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br i1 undef, label [[BB11:%.*]], label [[BB12:%.*]]
 ; CHECK:       bb11:
 ; CHECK-NEXT:    unreachable
 ; CHECK:       bb12:
-; CHECK-NEXT:    [[TMP0:%.*]] = call i8* @__inline_memcpy_chk(i8* bitcast (float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 1) to i8*), i8* undef, i32 512) [[ATTR3:#.*]]
+; CHECK-NEXT:    [[TMP0:%.*]] = call i8* @__inline_memcpy_chk(i8* bitcast (float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 1) to i8*), i8* undef, i32 512) #[[ATTR3:[0-9]+]]
 ; CHECK-NEXT:    unreachable
 ;
 entry:
   br i1 undef, label %bb11, label %bb12
 
 bb11:
   %0 = getelementptr inbounds float, float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 128), i32 -127 ; <float*> [#uses=1]
   %1 = bitcast float* %0 to i8*                   ; <i8*> [#uses=1]

 
 %struct.data = type { [100 x i32], [100 x i32], [1024 x i8] }
 
 define i32 @test4(i8** %esc) nounwind ssp {
 ; CHECK-LABEL: @test4(
 ; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    [[TMP0:%.*]] = alloca [[STRUCT_DATA:%.*]], align 8
 ; CHECK-NEXT:    [[TMP1:%.*]] = bitcast %struct.data* [[TMP0]] to i8*
-; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 8 dereferenceable(1824) [[TMP1]], i8 0, i32 1824, i1 false) [[ATTR0:#.*]]
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 8 dereferenceable(1824) [[TMP1]], i8 0, i32 1824, i1 false) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i8** [[ESC:%.*]] to %struct.data**
 ; CHECK-NEXT:    store %struct.data* [[TMP0]], %struct.data** [[TMP2]], align 4
 ; CHECK-NEXT:    ret i32 0
 ;
 entry:
   %0 = alloca %struct.data, align 8
   %1 = bitcast %struct.data* %0 to i8*
   %2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false, i1 false, i1 false) nounwind
   %3 = call i8* @__memset_chk(i8* %1, i32 0, i32 1824, i32 %2) nounwind
   store i8* %1, i8** %esc
   ret i32 0
 }
 
 ; rdar://7782496
 @s = external global i8*
 
 define i8* @test5(i32 %n) nounwind ssp {
 ; CHECK-LABEL: @test5(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) [[ATTR0]]
+; CHECK-NEXT:    [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) #[[ATTR0]]
 ; CHECK-NEXT:    [[TMP1:%.*]] = load i8*, i8** @s, align 8
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(10) [[TMP0]], i8* noundef nonnull align 1 dereferenceable(10) [[TMP1]], i32 10, i1 false) [[ATTR0]]
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(10) [[TMP0]], i8* noundef nonnull align 1 dereferenceable(10) [[TMP1]], i32 10, i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[TMP0]]
 ;
 entry:
   %0 = tail call noalias i8* @malloc(i32 20) nounwind
   %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false, i1 false, i1 false)
   %2 = load i8*, i8** @s, align 8
   %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 10, i32 %1) nounwind
   ret i8* %0
 }
 
 define void @test6(i32 %n) nounwind ssp {
 ; CHECK-LABEL: @test6(
 ; CHECK-NEXT:  entry:
-; CHECK-NEXT:    [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) [[ATTR0]]
+; CHECK-NEXT:    [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) #[[ATTR0]]
 ; CHECK-NEXT:    [[TMP1:%.*]] = load i8*, i8** @s, align 8
-; CHECK-NEXT:    [[TMP2:%.*]] = tail call i8* @__memcpy_chk(i8* [[TMP0]], i8* [[TMP1]], i32 30, i32 20) [[ATTR0]]
+; CHECK-NEXT:    [[TMP2:%.*]] = tail call i8* @__memcpy_chk(i8* [[TMP0]], i8* [[TMP1]], i32 30, i32 20) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 entry:
   %0 = tail call noalias i8* @malloc(i32 20) nounwind
   %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false, i1 false, i1 false)
   %2 = load i8*, i8** @s, align 8
   %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 30, i32 %1) nounwind
   ret void
 }
 
 declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind
 
 declare noalias i8* @malloc(i32) nounwind
 
 define i32 @test7(i8** %esc) {
 ; CHECK-LABEL: @test7(
-; CHECK-NEXT:    [[ALLOC:%.*]] = call noalias dereferenceable_or_null(48) i8* @malloc(i32 48) [[ATTR0]]
+; CHECK-NEXT:    [[ALLOC:%.*]] = call noalias dereferenceable_or_null(48) i8* @malloc(i32 48) #[[ATTR0]]
 ; CHECK-NEXT:    store i8* [[ALLOC]], i8** [[ESC:%.*]], align 4
 ; CHECK-NEXT:    ret i32 32
 ;
   %alloc = call noalias i8* @malloc(i32 48) nounwind
   store i8* %alloc, i8** %esc
   %gep = getelementptr inbounds i8, i8* %alloc, i32 16
   %objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false, i1 false, i1 false) nounwind readonly
   ret i32 %objsize
 }
 
 declare noalias i8* @calloc(i32, i32) nounwind
 
 define i32 @test8(i8** %esc) {
 ; CHECK-LABEL: @test8(
-; CHECK-NEXT:    [[ALLOC:%.*]] = call noalias dereferenceable_or_null(35) i8* @calloc(i32 5, i32 7) [[ATTR0]]
+; CHECK-NEXT:    [[ALLOC:%.*]] = call noalias dereferenceable_or_null(35) i8* @calloc(i32 5, i32 7) #[[ATTR0]]
 ; CHECK-NEXT:    store i8* [[ALLOC]], i8** [[ESC:%.*]], align 4
 ; CHECK-NEXT:    ret i32 30
 ;
   %alloc = call noalias i8* @calloc(i32 5, i32 7) nounwind
   store i8* %alloc, i8** %esc
   %gep = getelementptr inbounds i8, i8* %alloc, i32 5
   %objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false, i1 false, i1 false) nounwind readonly
   ret i32 %objsize
 }
 
 declare noalias i8* @strdup(i8* nocapture) nounwind
 declare noalias i8* @strndup(i8* nocapture, i32) nounwind
 
 define i32 @test9(i8** %esc) {
 ; CHECK-LABEL: @test9(
-; CHECK-NEXT:    [[CALL:%.*]] = tail call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) [[ATTR0]]
+; CHECK-NEXT:    [[CALL:%.*]] = tail call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-NEXT:    store i8* [[CALL]], i8** [[ESC:%.*]], align 8
 ; CHECK-NEXT:    ret i32 8
 ;
   %call = tail call i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0)) nounwind
   store i8* %call, i8** %esc, align 8
   %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
   ret i32 %1
 }
 
 define i32 @test10(i8** %esc) {
 ; CHECK-LABEL: @test10(
-; CHECK-NEXT:    [[CALL:%.*]] = tail call dereferenceable_or_null(4) i8* @strndup(i8* dereferenceable(8) getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0), i32 3) [[ATTR0]]
+; CHECK-NEXT:    [[CALL:%.*]] = tail call dereferenceable_or_null(4) i8* @strndup(i8* dereferenceable(8) getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0), i32 3) #[[ATTR0]]
 ; CHECK-NEXT:    store i8* [[CALL]], i8** [[ESC:%.*]], align 8
 ; CHECK-NEXT:    ret i32 4
 ;
   %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 3) nounwind
   store i8* %call, i8** %esc, align 8
   %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
   ret i32 %1
 }
 
 define i32 @test11(i8** %esc) {
 ; CHECK-LABEL: @test11(
-; CHECK-NEXT:    [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0))
+; CHECK-NEXT:    [[STRDUP:%.*]] = call noalias dereferenceable_or_null(8) i8* @strdup(i8* nocapture readonly getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) #[[ATTR5:[0-9]+]]
 ; CHECK-NEXT:    store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8
 ; CHECK-NEXT:    ret i32 8
 ;
   %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 7) nounwind
   store i8* %call, i8** %esc, align 8
   %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
   ret i32 %1
 }
 
 define i32 @test12(i8** %esc) {
 ; CHECK-LABEL: @test12(
-; CHECK-NEXT:    [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0))
+; CHECK-NEXT:    [[STRDUP:%.*]] = call noalias dereferenceable_or_null(8) i8* @strdup(i8* nocapture readonly getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) #[[ATTR5]]
 ; CHECK-NEXT:    store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8
 ; CHECK-NEXT:    ret i32 8
 ;
   %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 8) nounwind
   store i8* %call, i8** %esc, align 8
   %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
   ret i32 %1
 }
 
 define i32 @test13(i8** %esc) {
 ; CHECK-LABEL: @test13(
-; CHECK-NEXT:    [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0))
+; CHECK-NEXT:    [[STRDUP:%.*]] = call noalias dereferenceable_or_null(8) i8* @strdup(i8* nocapture readonly getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) #[[ATTR5]]
 ; CHECK-NEXT:    store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8
 ; CHECK-NEXT:    ret i32 8
 ;
   %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 57) nounwind
   store i8* %call, i8** %esc, align 8
   %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
   ret i32 %1
 }

llvm/test/Transforms/InstCombine/pow_fp_int.ll

 ;
   %subfp = uitofp i31 %x to double
   %pow = tail call afn double @llvm.pow.f64(double 7.000000e+00, double %subfp)
   ret double %pow
 }
 
 define double @pow_sitofp_double_const_base_2_fast(i32 %x) {
 ; CHECK-LABEL: @pow_sitofp_double_const_base_2_fast(
-; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i32 [[X:%.*]])
+; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i32 signext [[X:%.*]]) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[LDEXPF]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = sitofp i32 %x to float
   %pow = tail call afn float @llvm.pow.f32(float 2.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
;
   %pow = tail call afn float @llvm.pow.f32(float 16.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
 
 define double @pow_uitofp_const_base_2_fast(i31 %x) {
 ; CHECK-LABEL: @pow_uitofp_const_base_2_fast(
 ; CHECK-NEXT:    [[TMP1:%.*]] = zext i31 [[X:%.*]] to i32
-; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i32 [[TMP1]])
+; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i32 signext [[TMP1]]) #[[ATTR1]]
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[LDEXPF]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = uitofp i31 %x to float
   %pow = tail call afn float @llvm.pow.f32(float 2.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
;
   ret double %res
 }
 
 ; Negative tests
 
 define double @pow_uitofp_const_base_fast_i32(i32 %x) {
 ; CHECK-LABEL: @pow_uitofp_const_base_fast_i32(
 ; CHECK-NEXT:    [[SUBFP:%.*]] = uitofp i32 [[X:%.*]] to float
-; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[SUBFP]], 0x4006757{{.*}}
+; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[SUBFP]], 0x4006757680000000
 ; CHECK-NEXT:    [[EXP2:%.*]] = call fast float @llvm.exp2.f32(float [[MUL]])
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[EXP2]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = uitofp i32 %x to float
   %pow = tail call fast float @llvm.pow.f32(float 7.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
;
   %subfp = uitofp i32 %x to double
   %res = tail call fast double @llvm.pow.f64(double %base, double %subfp)
   ret double %res
 }
 
 define double @pow_sitofp_const_base_fast_i64(i64 %x) {
 ; CHECK-LABEL: @pow_sitofp_const_base_fast_i64(
 ; CHECK-NEXT:    [[SUBFP:%.*]] = sitofp i64 [[X:%.*]] to float
-; Do not change 0x400675{{.*}} to the exact constant, see PR42740
-; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[SUBFP]], 0x400675{{.*}}
+; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[SUBFP]], 0x4006757680000000
 ; CHECK-NEXT:    [[EXP2:%.*]] = call fast float @llvm.exp2.f32(float [[MUL]])
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[EXP2]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
+; Do not change 0x400675{{.*}} to the exact constant, see PR42740
   %subfp = sitofp i64 %x to float
   %pow = tail call fast float @llvm.pow.f32(float 7.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
 
 define double @pow_uitofp_const_base_fast_i64(i64 %x) {
 ; CHECK-LABEL: @pow_uitofp_const_base_fast_i64(
 ; CHECK-NEXT:    [[SUBFP:%.*]] = uitofp i64 [[X:%.*]] to float
-; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[SUBFP]], 0x400675{{.*}}
+; CHECK-NEXT:    [[MUL:%.*]] = fmul fast float [[SUBFP]], 0x4006757680000000
 ; CHECK-NEXT:    [[EXP2:%.*]] = call fast float @llvm.exp2.f32(float [[MUL]])
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[EXP2]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = uitofp i64 %x to float
   %pow = tail call fast float @llvm.pow.f32(float 7.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
;
   %subfp = uitofp i32 %x to float
   %pow = tail call float @llvm.pow.f32(float 7.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
 
 define double @pow_sitofp_const_base_2_no_fast(i32 %x) {
 ; CHECK-LABEL: @pow_sitofp_const_base_2_no_fast(
-; CHECK-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 [[X:%.*]])
+; CHECK-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i32 signext [[X:%.*]]) #[[ATTR1]]
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[LDEXPF]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = sitofp i32 %x to float
   %pow = tail call float @llvm.pow.f32(float 2.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }

llvm/test/Transforms/InstCombine/pow_fp_int16.ll

 ;
   %subfp = uitofp i15 %x to double
   %pow = tail call afn double @llvm.pow.f64(double 7.000000e+00, double %subfp)
   ret double %pow
 }
 
 define double @pow_sitofp_double_const_base_2_fast(i16 %x) {
 ; CHECK-LABEL: @pow_sitofp_double_const_base_2_fast(
-; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i16 [[X:%.*]])
+; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i16 signext [[X:%.*]]) #1
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[LDEXPF]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = sitofp i16 %x to float
   %pow = tail call afn float @llvm.pow.f32(float 2.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
;
   %pow = tail call afn float @llvm.pow.f32(float 16.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
 
 define double @pow_uitofp_const_base_2_fast(i15 %x) {
 ; CHECK-LABEL: @pow_uitofp_const_base_2_fast(
 ; CHECK-NEXT:    [[TMP1:%.*]] = zext i15 [[X:%.*]] to i16
-; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i16 [[TMP1]])
+; CHECK-NEXT:    [[LDEXPF:%.*]] = call afn float @ldexpf(float 1.000000e+00, i16 signext [[TMP1]]) #1
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[LDEXPF]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = uitofp i15 %x to float
   %pow = tail call afn float @llvm.pow.f32(float 2.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
;
   %subfp = uitofp i16 %x to float
   %pow = tail call float @llvm.pow.f32(float 7.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }
 
 define double @pow_sitofp_const_base_2_no_fast(i16 %x) {
 ; CHECK-LABEL: @pow_sitofp_const_base_2_no_fast(
-; CHECK-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 [[X:%.*]])
+; CHECK-NEXT:    [[LDEXPF:%.*]] = call float @ldexpf(float 1.000000e+00, i16 signext [[X:%.*]]) #1
 ; CHECK-NEXT:    [[RES:%.*]] = fpext float [[LDEXPF]] to double
 ; CHECK-NEXT:    ret double [[RES]]
 ;
   %subfp = sitofp i16 %x to float
   %pow = tail call float @llvm.pow.f32(float 2.000000e+00, float %subfp)
   %res = fpext float %pow to double
   ret double %res
 }

llvm/test/Transforms/InstCombine/printf-1.ll

 @h = constant [2 x i8] c"h\00"
 @h2 = constant [3 x i8] c"%%\00"
 @percent = constant [2 x i8] c"%\00"
 @percent_c = constant [3 x i8] c"%c\00"
 @percent_d = constant [3 x i8] c"%d\00"
 @percent_f = constant [3 x i8] c"%f\00"
 @percent_s = constant [4 x i8] c"%s\0A\00"
 @empty = constant [1 x i8] c"\00"
-; CHECK: [[$STR:@[a-z0-9]+]] = private unnamed_addr constant [12 x i8] c"hello world\00", align 1
 
 declare i32 @printf(i8*, ...)
 
 ; Check printf("") -> noop.
 
 define void @test_simplify1() {
 ; CHECK-LABEL: @test_simplify1(
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-IPRINTF-LABEL: @test_simplify1(
 ; CHECK-IPRINTF-NEXT:    ret void
 ;
   %fmt = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt)
   ret void
 }
 
 ; Check printf("x") -> putchar('x'), even for '%'.
 
 define void @test_simplify2() {
 ; CHECK-LABEL: @test_simplify2(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 104)
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 104) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-IPRINTF-LABEL: @test_simplify2(
-; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 104)
+; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 104) #[[ATTR0:[0-9]+]]
 ; CHECK-IPRINTF-NEXT:    ret void
 ;
   %fmt = getelementptr [2 x i8], [2 x i8]* @h, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt)
   ret void
 }
 
 ; Special case: printf("%%") -> putchar('%').
 
 define void @test_simplify2b() {
 ; CHECK-LABEL: @test_simplify2b(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 37)
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 37) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-IPRINTF-LABEL: @test_simplify2b(
-; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 37)
+; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 37) #[[ATTR0]]
 ; CHECK-IPRINTF-NEXT:    ret void
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @h2, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt)
   ret void
 }
 
 define void @test_simplify3() {
 ; CHECK-LABEL: @test_simplify3(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 37)
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 37) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-IPRINTF-LABEL: @test_simplify3(
-; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 37)
+; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 37) #[[ATTR0]]
 ; CHECK-IPRINTF-NEXT:    ret void
 ;
   %fmt = getelementptr [2 x i8], [2 x i8]* @percent, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt)
   ret void
 }
 
 ; Check printf("foo\n") -> puts("foo").
 
 define void @test_simplify4() {
 ; CHECK-LABEL: @test_simplify4(
-; CHECK-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str, i32 0, i32 0))
+; CHECK-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-IPRINTF-LABEL: @test_simplify4(
-; CHECK-IPRINTF-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str, i32 0, i32 0))
+; CHECK-IPRINTF-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-IPRINTF-NEXT:    ret void
 ;
   %fmt = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt)
   ret void
 }
 
 ; Check printf("%c", chr) -> putchar(chr).
 
 define void @test_simplify5() {
 ; CHECK-LABEL: @test_simplify5(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 104)
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 104) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-IPRINTF-LABEL: @test_simplify5(
-; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 104)
+; CHECK-IPRINTF-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 104) #[[ATTR0]]
 ; CHECK-IPRINTF-NEXT:    ret void
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_c, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt, i8 104)
   ret void
 }
 
 ; Check printf("%s\n", str) -> puts(str).
 
 define void @test_simplify6() {
 ; CHECK-LABEL: @test_simplify6(
-; CHECK-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0))
+; CHECK-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
 ; CHECK-IPRINTF-LABEL: @test_simplify6(
-; CHECK-IPRINTF-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0))
+; CHECK-IPRINTF-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-IPRINTF-NEXT:    ret void
 ;
   %fmt = getelementptr [4 x i8], [4 x i8]* @percent_s, i32 0, i32 0
   %str = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call i32 (i8*, ...) @printf(i8* %fmt, i8* %str)
   ret void
 }
 

llvm/test/Transforms/InstCombine/printf-2.ll

 ; CHECK: @[[CHARSTR:[a-zA-Z0-9_$"\\.-]+]] = constant [2 x i8] c"a\00"
 ; CHECK: @[[EMPTY:[a-zA-Z0-9_$"\\.-]+]] = constant [1 x i8] zeroinitializer
 ; CHECK: @[[STR:[a-zA-Z0-9_$"\\.-]+]] = private unnamed_addr constant [12 x i8] c"hello world\00", align 1
 ; CHECK: @[[STR_1:[a-zA-Z0-9_$"\\.-]+]] = private unnamed_addr constant [12 x i8] c"hello world\00", align 1
 ; CHECK: @[[STR_2:[a-zA-Z0-9_$"\\.-]+]] = private unnamed_addr constant [12 x i8] c"hello world\00", align 1
 ;.
 define void @test_simplify1() {
 ; CHECK-LABEL: @test_simplify1(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 104)
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 104) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [2 x i8], [2 x i8]* @h, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt)
   ret void
 }
 
 define void @test_simplify2() {
 ; CHECK-LABEL: @test_simplify2(
-; CHECK-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str, i32 0, i32 0))
+; CHECK-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt)
   ret void
 }
 
 define void @test_simplify6() {
 ; CHECK-LABEL: @test_simplify6(
-; CHECK-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0))
+; CHECK-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [4 x i8], [4 x i8]* @percent_s, i32 0, i32 0
   %str = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt, i8* %str)
   ret void
 }
 
 define void @test_simplify7() {
 ; CHECK-LABEL: @test_simplify7(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 97)
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 97) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @format_str, i32 0, i32 0
   %str = getelementptr [2 x i8], [2 x i8]* @charstr, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt, i8* %str)
   ret void
 }
 
 ; printf("%s", "") --> noop
 
 define void @test_simplify8() {
 ; CHECK-LABEL: @test_simplify8(
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @format_str, i32 0, i32 0
   %str = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt, i8* %str)
   ret void
 }
 
 ; printf("%s", str"\n") --> puts(str)
 
 define void @test_simplify9() {
 ; CHECK-LABEL: @test_simplify9(
-; CHECK-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str.1, i32 0, i32 0))
+; CHECK-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str.1, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @format_str, i32 0, i32 0
   %str = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt, i8* %str)
   ret void
 }
 
 ; printf("%s", "", ...) --> noop
 ; printf("%s", "a", ...) --> putchar('a')
 ; printf("%s", str"\n", ...) --> puts(str)
 
 define void @test_simplify10() {
 ; CHECK-LABEL: @test_simplify10(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 97)
-; CHECK-NEXT:    [[PUTS:%.*]] = call i32 @puts(i8* nonnull dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str.2, i32 0, i32 0))
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 97) #[[ATTR0]]
+; CHECK-NEXT:    [[PUTS:%.*]] = call noundef i32 @puts(i8* nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str.2, i32 0, i32 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @format_str, i32 0, i32 0
   %str1 = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt, i8* %str1, i32 42, double 0x40091EB860000000)
   %str2 = getelementptr [2 x i8], [2 x i8]* @charstr, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt, i8* %str2, i32 42, double 0x40091EB860000000)
   %str3 = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
   call void (i8*, ...) @printf(i8* %fmt, i8* %str3, i32 42, double 0x40091EB860000000)
   ret void
 }
 ;.
-; CHECK: attributes #[[ATTR0:[0-9]+]] = { nofree nounwind }
+; CHECK: attributes #[[ATTR0]] = { nofree nounwind }
 ;.

llvm/test/Transforms/InstCombine/printf-3.ll

 
 unreachable:
   unreachable
 }
 
 ; CHECK-DAG: define void @test1(
 ; CHECK: %[[CS:.*]] = catchswitch within none
 ; CHECK: %[[CP:.*]] = catchpad within %[[CS]] [i8* null, i32 64, i8* null]
-; CHECK: call i32 @putchar(i32 10) [ "funclet"(token %[[CP]]) ]
-
+; CHECK: call noundef i32 @putchar(i32 noundef 10) #0 [ "funclet"(token %cp) ]
 declare void @_CxxThrowException(i8*, i8*)
 
 declare i32 @__CxxFrameHandler3(...)
 
 declare i32 @printf(i8*, ...)

llvm/test/Transforms/InstCombine/puts-1.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; Test that the puts library call simplifier works correctly.
 ;
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 
 @empty = constant [1 x i8] zeroinitializer
 
 declare i32 @puts(i8*)
 
 ; Check puts("") -> putchar('\n').
 
 define void @test_simplify1() {
 ; CHECK-LABEL: @test_simplify1(
-; CHECK-NEXT:    [[PUTCHAR:%.*]] = call i32 @putchar(i32 10)
+; CHECK-NEXT:    [[PUTCHAR:%.*]] = call noundef i32 @putchar(i32 noundef 10) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
   %str = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0
   call i32 @puts(i8* %str)
   ret void
 }
 
 ; Don't simplify if the return value is used.

llvm/test/Transforms/InstCombine/realloc.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 declare i8* @realloc(i8*, i64) #1
 declare noalias i8* @malloc(i64) #1
 
 
 define i8* @realloc_null_ptr() #0 {
 ; CHECK-LABEL: @realloc_null_ptr(
-; CHECK-NEXT:    [[MALLOC:%.*]] = call dereferenceable_or_null(100) i8* @malloc(i64 100)
+; CHECK-NEXT:    [[MALLOC:%.*]] = call noalias noundef dereferenceable_or_null(100) i8* @malloc(i64 noundef 100) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i8* [[MALLOC]]
 ;
   %call = call i8* @realloc(i8* null, i64 100) #2
   ret i8* %call
 }
 
 define i8* @realloc_unknown_ptr(i8* %ptr) #0 {
 ; CHECK-LABEL: @realloc_unknown_ptr(
 ; CHECK-NEXT:    [[CALL:%.*]] = call dereferenceable_or_null(100) i8* @realloc(i8* [[PTR:%.*]], i64 100)
 ; CHECK-NEXT:    ret i8* [[CALL]]
 ;
   %call = call i8* @realloc(i8* %ptr, i64 100) #2
   ret i8* %call
 }

llvm/test/Transforms/InstCombine/simplify-libcalls.ll

 ; CHECK-NEXT:    [[Y:%.*]] = call double @exp2(double %x)
 ; CHECK-NEXT:    ret double [[Y]]
 
   %y = call inreg double @pow(double inreg 2.0, double inreg %x)
   ret double %y
 }
 define double @fake_ldexp(i32 %x) {
 ; CHECK32-LABEL: @fake_ldexp(
-; CHECK32-NEXT:    [[Z:%.*]] = call double @ldexp(double 1.0{{.*}}, i32 %x)
+; CHECK32-NEXT:    [[Z:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext %x) #4
 ; CHECK32-NEXT:    ret double [[Z]]
 
 ; CHECK16-LABEL: @fake_ldexp(
 ; CHECK16-NEXT:    [[Y:%.*]] = sitofp i32 %x to double
 ; CHECK16-NEXT:    [[Z:%.*]] = call inreg double @exp2(double [[Y]])
 ; CHECK16-NEXT:    ret double [[Z]]
 
   %y = sitofp i32 %x to double
   %z = call inreg double @exp2(double %y)
   ret double %z
 }
 define double @fake_ldexp_16(i16 %x) {
 ; CHECK32-LABEL: @fake_ldexp_16(
 ; CHECK32-NEXT:    [[Y:%.*]] = sext i16 %x to i32
-; CHECK32-NEXT:    [[Z:%.*]] = call double @ldexp(double 1.0{{.*}}, i32 [[Y]])
+; CHECK32-NEXT:    [[Z:%.*]] = call double @ldexp(double 1.000000e+00, i32 signext %1) #4
 ; CHECK32-NEXT:    ret double [[Z]]
 
 ; CHECK16-LABEL: @fake_ldexp_16(
-; CHECK16-NEXT:    [[Z:%.*]] = call double @ldexp(double 1.0{{.*}}, i16 %x)
+; CHECK16-NEXT:    [[Z:%.*]] = call double @ldexp(double 1.000000e+00, i16 signext %x) #4
 ; CHECK16-NEXT:    ret double [[Z]]
 
   %y = sitofp i16 %x to double
   %z = call inreg double @exp2(double %y)
   ret double %z
 }
 
 
 attributes #0 = { nobuiltin }
 attributes #1 = { builtin }

llvm/test/Transforms/InstCombine/sprintf-1.ll

;
   call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, i8 104)
   ret void
 }
 
 ; Check sprintf(dst, "%s", str) -> strcpy(dst, "%s", str) if result is unused.
 
 define void @test_simplify5(i8* %dst, i8* %str) {
 ; CHECK-LABEL: @test_simplify5(
-; CHECK-NEXT:    [[STRCPY:%.*]] = call i8* @strcpy(i8* noundef nonnull dereferenceable(1) [[DST:%.*]], i8* noundef nonnull dereferenceable(1) [[STR:%.*]])
+; CHECK-NEXT:    [[STRCPY:%.*]] = call i8* @strcpy(i8* noalias noundef nonnull returned writeonly dereferenceable(1) [[DST:%.*]], i8* noalias nocapture noundef nonnull readonly dereferenceable(1) [[STR:%.*]]) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    ret void
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_s, i32 0, i32 0
   call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, i8* %str)
   ret void
 }
 
 ; Check sprintf(dst, format, ...) -> siprintf(str, format, ...) if no floating.
;
   call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, i32 187)
   ret void
 }
 
 ; Check sprintf(dst, "%s", str) -> llvm.memcpy(dest, str, strlen(str) + 1, 1).
 
 define i32 @test_simplify7(i8* %dst, i8* %str) {
 ; CHECK-IPRINTF-LABEL: @test_simplify7(
-; CHECK-IPRINTF-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* [[DST:%.*]], i8* [[STR:%.*]])
+; CHECK-IPRINTF-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* noalias writeonly [[DST:%.*]], i8* noalias nocapture readonly [[STR:%.*]]) #[[ATTR1]]
 ; CHECK-IPRINTF-NEXT:    [[TMP1:%.*]] = ptrtoint i8* [[STPCPY]] to i32
 ; CHECK-IPRINTF-NEXT:    [[TMP2:%.*]] = ptrtoint i8* [[DST]] to i32
 ; CHECK-IPRINTF-NEXT:    [[TMP3:%.*]] = sub i32 [[TMP1]], [[TMP2]]
 ; CHECK-IPRINTF-NEXT:    ret i32 [[TMP3]]
 ;
 ; WIN-LABEL: @test_simplify7(
-; WIN-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* noundef nonnull dereferenceable(1) [[STR:%.*]])
+; WIN-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* nocapture noundef nonnull dereferenceable(1) [[STR:%.*]]) #[[ATTR2:[0-9]+]]
 ; WIN-NEXT:    [[LENINC:%.*]] = add i32 [[STRLEN]], 1
 ; WIN-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 [[DST:%.*]], i8* align 1 [[STR]], i32 [[LENINC]], i1 false)
 ; WIN-NEXT:    ret i32 [[STRLEN]]
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_s, i32 0, i32 0
   %r = call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, i8* %str)
   ret i32 %r
 }
;
   %r = call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, i8* %str)
   ret i32 %r
 }
 
 ; Check sprintf(dst, "%s", str) -> stpcpy(dest, str) - dest
 
 define i32 @test_simplify9(i8* %dst, i8* %str) {
 ; CHECK-IPRINTF-LABEL: @test_simplify9(
-; CHECK-IPRINTF-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* [[DST:%.*]], i8* [[STR:%.*]])
+; CHECK-IPRINTF-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* noalias writeonly [[DST:%.*]], i8* noalias nocapture readonly [[STR:%.*]]) #[[ATTR1]]
 ; CHECK-IPRINTF-NEXT:    [[TMP1:%.*]] = ptrtoint i8* [[STPCPY]] to i32
 ; CHECK-IPRINTF-NEXT:    [[TMP2:%.*]] = ptrtoint i8* [[DST]] to i32
 ; CHECK-IPRINTF-NEXT:    [[TMP3:%.*]] = sub i32 [[TMP1]], [[TMP2]]
 ; CHECK-IPRINTF-NEXT:    ret i32 [[TMP3]]
 ;
 ; WIN-LABEL: @test_simplify9(
-; WIN-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* noundef nonnull dereferenceable(1) [[STR:%.*]])
+; WIN-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* nocapture noundef nonnull dereferenceable(1) [[STR:%.*]]) #[[ATTR2]]
 ; WIN-NEXT:    [[LENINC:%.*]] = add i32 [[STRLEN]], 1
 ; WIN-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 [[DST:%.*]], i8* align 1 [[STR]], i32 [[LENINC]], i1 false)
 ; WIN-NEXT:    ret i32 [[STRLEN]]
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_s, i32 0, i32 0
   %r = call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, i8* %str)
   ret i32 %r
 }

 ; CHECK-NEXT:    ret void
 ;
   call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, double %d)
   ret void
 }
 
 define i32 @test_no_simplify3(i8* %dst, i8* %str) minsize {
 ; CHECK-IPRINTF-LABEL: @test_no_simplify3(
-; CHECK-IPRINTF-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* [[DST:%.*]], i8* [[STR:%.*]])
+; CHECK-IPRINTF-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* noalias writeonly [[DST:%.*]], i8* noalias nocapture readonly [[STR:%.*]]) #[[ATTR1]]
 ; CHECK-IPRINTF-NEXT:    [[TMP1:%.*]] = ptrtoint i8* [[STPCPY]] to i32
 ; CHECK-IPRINTF-NEXT:    [[TMP2:%.*]] = ptrtoint i8* [[DST]] to i32
 ; CHECK-IPRINTF-NEXT:    [[TMP3:%.*]] = sub i32 [[TMP1]], [[TMP2]]
 ; CHECK-IPRINTF-NEXT:    ret i32 [[TMP3]]
 ;
 ; WIN-LABEL: @test_no_simplify3(
 ; WIN-NEXT:    [[R:%.*]] = call i32 (i8*, i8*, ...) @sprintf(i8* noundef nonnull dereferenceable(1) [[DST:%.*]], i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @percent_s, i32 0, i32 0), i8* [[STR:%.*]])
 ; WIN-NEXT:    ret i32 [[R]]
 ;
   %fmt = getelementptr [3 x i8], [3 x i8]* @percent_s, i32 0, i32 0
   %r = call i32 (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt, i8* %str)
   ret i32 %r
 }

llvm/test/Transforms/InstCombine/sqrt.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -instcombine < %s | FileCheck %s
 
 define float @test1(float %x) nounwind readnone ssp {
 ; CHECK-LABEL: @test1(
-; CHECK-NEXT:    [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #3
+; CHECK-NEXT:    [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #[[ATTR3:[0-9]+]]
 ; CHECK-NEXT:    ret float [[SQRTF]]
 ;
   %conv = fpext float %x to double
   %call = tail call double @sqrt(double %conv) readnone nounwind
   %conv1 = fptrunc double %call to float
   ret float %conv1
 }
 
 ; PR8096
 
 define float @test2(float %x) nounwind readnone ssp {
 ; CHECK-LABEL: @test2(
-; CHECK-NEXT:    [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #3
+; CHECK-NEXT:    [[SQRTF:%.*]] = call float @sqrtf(float [[X:%.*]]) #[[ATTR3]]
 ; CHECK-NEXT:    ret float [[SQRTF]]
 ;
   %conv = fpext float %x to double
   %call = tail call double @sqrt(double %conv) nounwind
   %conv1 = fptrunc double %call to float
   ret float %conv1
 }
 
 ; rdar://9763193
 ; Can't fold (fptrunc (sqrt (fpext x))) -> (sqrtf x) since there is another
 ; use of sqrt result.
 
 define float @test3(float* %v) nounwind uwtable ssp {
 ; CHECK-LABEL: @test3(
-; CHECK-NEXT:    [[CALL34:%.*]] = call double @sqrt(double 0x7FF8000000000000) #3
-; CHECK-NEXT:    [[CALL36:%.*]] = call i32 @foo(double [[CALL34]]) #4
+; CHECK-NEXT:    [[CALL34:%.*]] = call double @sqrt(double 0x7FF8000000000000) #[[ATTR4:[0-9]+]]
+; CHECK-NEXT:    [[CALL36:%.*]] = call i32 @foo(double [[CALL34]]) #[[ATTR3]]
 ; CHECK-NEXT:    [[CONV38:%.*]] = fptrunc double [[CALL34]] to float
 ; CHECK-NEXT:    ret float [[CONV38]]
 ;
   %arrayidx13 = getelementptr inbounds float, float* %v, i64 2
   %tmp14 = load float, float* %arrayidx13
   %mul18 = fmul float %tmp14, %tmp14
   %add19 = fadd float undef, %mul18
   %conv = fpext float %add19 to double
   %call34 = call double @sqrt(double %conv) readnone
   %call36 = call i32 (double) @foo(double %call34) nounwind
   %conv38 = fptrunc double %call34 to float
   ret float %conv38
 }
 
 ; PR43347 - https://bugs.llvm.org/show_bug.cgi?id=43347
 
 define void @0(float %f) {
 ; CHECK-LABEL: @0(
-; CHECK-NEXT:    [[SQRTF:%.*]] = call float @sqrtf(float [[F:%.*]]) #2
+; CHECK-NEXT:    [[SQRTF:%.*]] = call float @sqrtf(float [[F:%.*]])
 ; CHECK-NEXT:    ret void
 ;
   %d = fpext float %f to double
   %r = call double @sqrt(double %d)
   ret void
 }
 
 declare i32 @foo(double)
 declare double @sqrt(double) readnone

llvm/test/Transforms/InstCombine/stpcpy-1.ll

;
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
 
   %ret = call i8* @stpcpy(i8* %dst, i8* %src)
   ret i8* %ret
 }
 
 define i8* @test_simplify2() {
 ; CHECK-LABEL: @test_simplify2(
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @a, i32 0, i32 0))
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* nocapture noundef nonnull dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @a, i32 0, i32 0)) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [32 x i8], [32 x i8]* @a, i32 0, i32 [[STRLEN]]
 ; CHECK-NEXT:    ret i8* [[TMP1]]
 ;
 
   %dst = getelementptr [32 x i8], [32 x i8]* @a, i32 0, i32 0
 
   %ret = call i8* @stpcpy(i8* %dst, i8* %dst)
   ret i8* %ret

llvm/test/Transforms/InstCombine/stpcpy_chk-1.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; Test lib call simplification of __stpcpy_chk calls with various values
 ; for src, dst, and slen.
 ;
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 
 @a = common global [60 x i8] zeroinitializer, align 1
 @b = common global [60 x i8] zeroinitializer, align 1
 @.str = private constant [12 x i8] c"abcdefghijk\00"
 
 ; Check cases where slen >= strlen (src).
 
 define i8* @test_simplify1() {
 ; CHECK-LABEL: @test_simplify1(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR2:[0-9]+]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 11)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__stpcpy_chk(i8* %dst, i8* %src, i32 60)
   ret i8* %ret
 }
 
 define i8* @test_simplify2() {
 ; CHECK-LABEL: @test_simplify2(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR2]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 11)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__stpcpy_chk(i8* %dst, i8* %src, i32 12)
   ret i8* %ret
 }
 
 define i8* @test_simplify3() {
 ; CHECK-LABEL: @test_simplify3(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR2]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 11)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__stpcpy_chk(i8* %dst, i8* %src, i32 -1)
   ret i8* %ret
 }
 
 ; Check cases where there are no string constants.
 
 define i8* @test_simplify4() {
 ; CHECK-LABEL: @test_simplify4(
-; CHECK-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0))
+; CHECK-NEXT:    [[STPCPY:%.*]] = call i8* @stpcpy(i8* noalias writeonly getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture readonly getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0)) #[[ATTR2]]
 ; CHECK-NEXT:    ret i8* [[STPCPY]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
 
   %ret = call i8* @__stpcpy_chk(i8* %dst, i8* %src, i32 -1)
   ret i8* %ret
 }
 
 ; Check case where the string length is not constant.
 
 define i8* @test_simplify5() {
 ; CHECK-LABEL: @test_simplify5(
 ; CHECK-NEXT:    [[LEN:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false, i1 false, i1 false)
-; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @__memcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 [[LEN]])
+; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @__memcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 [[LEN]]) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 11)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %len = call i32 @llvm.objectsize.i32.p0i8(i8* %dst, i1 false, i1 false, i1 false)
   %ret = call i8* @__stpcpy_chk(i8* %dst, i8* %src, i32 %len)
   ret i8* %ret
 }
 
 ; Check case where the source and destination are the same.
 
 define i8* @test_simplify6() {
 ; CHECK-LABEL: @test_simplify6(
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0))
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* nocapture noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)) #[[ATTR3:[0-9]+]]
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 [[STRLEN]]
 ; CHECK-NEXT:    ret i8* [[TMP1]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
 
   %len = call i32 @llvm.objectsize.i32.p0i8(i8* %dst, i1 false, i1 false, i1 false)
   %ret = call i8* @__stpcpy_chk(i8* %dst, i8* %dst, i32 %len)
   ret i8* %ret

llvm/test/Transforms/InstCombine/strchr-1.ll

;
   %src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
   %dst = call i8* @strchr(i8* %src, i32 0)
   store i8* %dst, i8** @chp
   ret void
 }
 
 define void @test_simplify4(i32 %chr) {
 ; CHECK-LABEL: @test_simplify4(
-; CHECK-NEXT:    [[MEMCHR:%.*]] = call i8* @memchr(i8* noundef nonnull dereferenceable(14) getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 0), i32 [[CHR:%.*]], i32 14)
+; CHECK-NEXT:    [[MEMCHR:%.*]] = call i8* @memchr(i8* noundef nonnull dereferenceable(14) getelementptr inbounds ([14 x i8], [14 x i8]* @hello, i32 0, i32 0), i32 [[CHR:%.*]], i32 14) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    store i8* [[MEMCHR]], i8** @chp, align 4
 ; CHECK-NEXT:    ret void
 ;
 
   %src = getelementptr [14 x i8], [14 x i8]* @hello, i32 0, i32 0
   %dst = call i8* @strchr(i8* %src, i32 %chr)
   store i8* %dst, i8** @chp
   ret void
;
   %dst = call i8* @strchr(i8* %src, i32 65280)
   store i8* %dst, i8** @chp
   ret void
 }
 
 ; Check transformation strchr(p, 0) -> p + strlen(p)
 define void @test_simplify6(i8* %str) {
 ; CHECK-LABEL: @test_simplify6(
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* noundef nonnull dereferenceable(1) [[STR:%.*]])
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* nocapture noundef nonnull dereferenceable(1) [[STR:%.*]]) #[[ATTR1]]
 ; CHECK-NEXT:    [[STRCHR:%.*]] = getelementptr i8, i8* [[STR]], i32 [[STRLEN]]
 ; CHECK-NEXT:    store i8* [[STRCHR]], i8** @chp, align 4
 ; CHECK-NEXT:    ret void
 ;
 
   %dst = call i8* @strchr(i8* %str, i32 0)
   store i8* %dst, i8** @chp
   ret void

llvm/test/Transforms/InstCombine/strcmp-1.ll

 ; strcmp(x, y)   -> memcmp(x, y, <known length>)
 ; (This transform is rather difficult to trigger in a useful manner)
 define i32 @test5(i1 %b) {
 ; CHECK-LABEL: @test5(
 ; CHECK: %memcmp = call i32 @memcmp(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* %str2, i32 5)
 ; CHECK: ret i32 %memcmp
 ; NOBCMP-LABEL: @test5(
 ; NOBCMP-NEXT:    [[STR2:%.*]] = select i1 [[B:%.*]], i8* getelementptr inbounds ([5 x i8], [5 x i8]* @hell, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bell, i32 0, i32 0)
-; NOBCMP-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* noundef nonnull dereferenceable(5) [[STR2]], i32 5)
+; NOBCMP-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* nocapture noundef nonnull dereferenceable(5) [[STR2]], i32 5) #[[ATTR0:[0-9]+]]
 ; NOBCMP-NEXT:    ret i32 [[MEMCMP]]
 ;
 ; BCMP-LABEL: @test5(
 ; BCMP-NEXT:    [[STR2:%.*]] = select i1 [[B:%.*]], i8* getelementptr inbounds ([5 x i8], [5 x i8]* @hell, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bell, i32 0, i32 0)
-; BCMP-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* noundef nonnull dereferenceable(5) [[STR2]], i32 5)
+; BCMP-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* nocapture noundef nonnull dereferenceable(5) [[STR2]], i32 5) #[[ATTR0:[0-9]+]]
 ; BCMP-NEXT:    ret i32 [[MEMCMP]]
 ;
   %str1 = getelementptr inbounds [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %temp1 = getelementptr inbounds [5 x i8], [5 x i8]* @hell, i32 0, i32 0
   %temp2 = getelementptr inbounds [5 x i8], [5 x i8]* @bell, i32 0, i32 0
   %str2 = select i1 %b, i8* %temp1, i8* %temp2
   %temp3 = call i32 @strcmp(i8* %str1, i8* %str2)
   ret i32 %temp3
;
   %temp1 = call i32 @strcmp(i8* %str, i8* %str)
   ret i32 %temp1
 }
 
 ; strcmp(x, y) == 0  -> bcmp(x, y, <known length>)
 define i1 @test7(i1 %b) {
 ; NOBCMP-LABEL: @test7(
 ; NOBCMP-NEXT:    [[STR2:%.*]] = select i1 [[B:%.*]], i8* getelementptr inbounds ([5 x i8], [5 x i8]* @hell, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bell, i32 0, i32 0)
-; NOBCMP-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* noundef nonnull dereferenceable(5) [[STR2]], i32 5)
+; NOBCMP-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* nocapture noundef nonnull dereferenceable(5) [[STR2]], i32 5) #[[ATTR0]]
 ; NOBCMP-NEXT:    [[RES:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; NOBCMP-NEXT:    ret i1 [[RES]]
 ;
 ; BCMP-LABEL: @test7(
 ; BCMP-NEXT:    [[STR2:%.*]] = select i1 [[B:%.*]], i8* getelementptr inbounds ([5 x i8], [5 x i8]* @hell, i32 0, i32 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @bell, i32 0, i32 0)
-; BCMP-NEXT:    [[BCMP:%.*]] = call i32 @bcmp(i8* noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* noundef nonnull dereferenceable(5) [[STR2]], i32 5)
+; BCMP-NEXT:    [[BCMP:%.*]] = call i32 @bcmp(i8* nocapture noundef nonnull dereferenceable(5) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i8* nocapture noundef nonnull dereferenceable(5) [[STR2]], i32 5) #[[ATTR0]]
 ; BCMP-NEXT:    [[RES:%.*]] = icmp eq i32 [[BCMP]], 0
 ; BCMP-NEXT:    ret i1 [[RES]]
 ;
 
 
   %str1 = getelementptr inbounds [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %temp1 = getelementptr inbounds [5 x i8], [5 x i8]* @hell, i32 0, i32 0
   %temp2 = getelementptr inbounds [5 x i8], [5 x i8]* @bell, i32 0, i32 0
   %str2 = select i1 %b, i8* %temp1, i8* %temp2
   %temp3 = call i32 @strcmp(i8* %str1, i8* %str2)
   %res = icmp eq i32 %temp3, 0
   ret i1 %res
 }

llvm/test/Transforms/InstCombine/strcmp-memcmp.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
 @key = constant [4 x i8] c"key\00", align 1
 @abc = constant [8 x i8] c"abc\00de\00\00", align 1
 
 declare void @use(i32)
 
 define i32 @strcmp_memcmp([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0))
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 declare i32 @strcmp(i8* nocapture, i8* nocapture)
 
 define i32 @strcmp_memcmp2([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp2(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strcmp_memcmp3([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp3(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0))
   %cmp = icmp ne i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strcmp_memcmp4([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp4(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string)
   %cmp = icmp ne i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strcmp_memcmp5([5 x i8]* dereferenceable (5) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp5(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [5 x i8], [5 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [5 x i8], [5 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* nonnull align 1 %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0))
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strcmp_memcmp6([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp6(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0))
   %cmp = icmp sgt i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strcmp_memcmp7([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp7(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[MEMCMP_LOBIT:%.*]] = lshr i32 [[MEMCMP]], 31
 ; CHECK-NEXT:    ret i32 [[MEMCMP_LOBIT]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string)
   %cmp = icmp slt i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strcmp_memcmp8([4 x i8]* dereferenceable (4) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp8(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [4 x i8], [4 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [4 x i8], [4 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0))
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strcmp_memcmp9([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strcmp_memcmp9(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0))
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 
 define i32 @strncmp_memcmp([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(2) [[STRING]], i8* noundef nonnull dereferenceable(2) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 2)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(2) [[STRING]], i8* nocapture noundef nonnull dereferenceable(2) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 2) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 2)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 declare i32 @strncmp(i8* nocapture, i8* nocapture, i64)
 
 define i32 @strncmp_memcmp2([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp2(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 11)
   %cmp = icmp ne i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp3([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp3(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 11)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp4([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp4(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 5)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp5([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp5(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 
 define i32 @strncmp_memcmp6([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp6(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5)
   %cmp = icmp ne i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp7([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp7(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp8([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp8(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(3) [[STRING]], i8* noundef nonnull dereferenceable(3) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 3)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(3) [[STRING]], i8* nocapture noundef nonnull dereferenceable(3) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 3) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 3)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp9([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp9(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5)
   %cmp = icmp sgt i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp10([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp10(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[MEMCMP_LOBIT:%.*]] = lshr i32 [[MEMCMP]], 31
 ; CHECK-NEXT:    ret i32 [[MEMCMP_LOBIT]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5)
   %cmp = icmp slt i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp11([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp11(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 12)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp12([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp12(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* noundef nonnull dereferenceable(4) [[STRING]], i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 12)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp13([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp13(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(2) [[STRING]], i8* noundef nonnull dereferenceable(2) getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 2)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(2) [[STRING]], i8* nocapture noundef nonnull dereferenceable(2) getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 2) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 2)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32
   ret i32 %conv
 }
 
 define i32 @strncmp_memcmp14([12 x i8]* dereferenceable (12) %buf) {
 ; CHECK-LABEL: @strncmp_memcmp14(
 ; CHECK-NEXT:    [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* noundef nonnull dereferenceable(4) [[STRING]], i8* noundef nonnull dereferenceable(4) getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 4)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture noundef nonnull dereferenceable(4) [[STRING]], i8* nocapture noundef nonnull dereferenceable(4) getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 4) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32
 ; CHECK-NEXT:    ret i32 [[CONV]]
 ;
   %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0
   %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 12)
   %cmp = icmp eq i32 %call, 0
   %conv = zext i1 %cmp to i32

llvm/test/Transforms/InstCombine/strcpy_chk-1.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; Test lib call simplification of __strcpy_chk calls with various values
 ; for src, dst, and slen.
 ;
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 
 @a = common global [60 x i8] zeroinitializer, align 1
 @b = common global [60 x i8] zeroinitializer, align 1
 @.str = private constant [12 x i8] c"abcdefghijk\00"
 
 ; Check cases where slen >= strlen (src).
 
 define i8* @test_simplify1() {
 ; CHECK-LABEL: @test_simplify1(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR2:[0-9]+]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 60)
   ret i8* %ret
 }
 
 define i8* @test_simplify2() {
 ; CHECK-LABEL: @test_simplify2(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR2]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 12)
   ret i8* %ret
 }
 
 define i8* @test_simplify3() {
 ; CHECK-LABEL: @test_simplify3(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR2]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 -1)
   ret i8* %ret
 }
 
 ; Check cases where there are no string constants.
 
 define i8* @test_simplify4() {
 ; CHECK-LABEL: @test_simplify4(
-; CHECK-NEXT:    [[STRCPY:%.*]] = call i8* @strcpy(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0))
+; CHECK-NEXT:    [[STRCPY:%.*]] = call i8* @strcpy(i8* noalias noundef nonnull returned writeonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0)) #[[ATTR2]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
 
   %ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 -1)
   ret i8* %ret
 }
 
 ; Check case where the string length is not constant.
 
 define i8* @test_simplify5() {
 ; CHECK-LABEL: @test_simplify5(
 ; CHECK-NEXT:    [[LEN:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false, i1 false, i1 false)
-; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @__memcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 [[LEN]])
+; CHECK-NEXT:    [[TMP1:%.*]] = call i8* @__memcpy_chk(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i32 [[LEN]]) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i8* [[TMP1]]
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %len = call i32 @llvm.objectsize.i32.p0i8(i8* %dst, i1 false, i1 false, i1 false)
   %ret = call i8* @__strcpy_chk(i8* %dst, i8* %src, i32 %len)
   ret i8* %ret

llvm/test/Transforms/InstCombine/strcspn-1.ll

 @null = constant [1 x i8] zeroinitializer
 
 declare i64 @strcspn(i8*, i8*)
 
 ; Check strcspn(s, "") -> strlen(s).
 
 define i64 @test_simplify1(i8* %str) {
 ; CHECK-LABEL: @test_simplify1(
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i64 @strlen(i8* noundef nonnull dereferenceable(1) [[STR:%.*]])
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i64 @strlen(i8* nocapture noundef nonnull dereferenceable(1) [[STR:%.*]]) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i64 [[STRLEN]]
 ;
   %pat = getelementptr [1 x i8], [1 x i8]* @null, i32 0, i32 0
 
   %ret = call i64 @strcspn(i8* %str, i8* %pat)
   ret i64 %ret
 }
 

llvm/test/Transforms/InstCombine/strncat-2.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; Test that the strncat libcall simplifier works correctly.
 ;
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 
 @hello = constant [6 x i8] c"hello\00"
 @empty = constant [1 x i8] c"\00"
 @a = common global [32 x i8] zeroinitializer, align 1
 declare i8* @strncat(i8*, i8*, i32)
 
 define void @test_simplify1() {
 ; CHECK-LABEL: @test_simplify1(
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @a, i32 0, i32 0))
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* nocapture noundef nonnull dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @a, i32 0, i32 0)) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    [[ENDPTR:%.*]] = getelementptr [32 x i8], [32 x i8]* @a, i32 0, i32 [[STRLEN]]
 ; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(6) [[ENDPTR]], i8* noundef nonnull align 1 dereferenceable(6) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i32 6, i1 false)
 ; CHECK-NEXT:    ret void
 ;
 
   %dst = getelementptr [32 x i8], [32 x i8]* @a, i32 0, i32 0
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   call i8* @strncat(i8* %dst, i8* %src, i32 13)

 ;
 
   %temp1 = call i8* @strncat(i8* %str1, i8* %str2, i32 %n)
   ret i8* %temp1
 }
 
 define i8* @test5(i8* %str, i32 %n) {
 ; CHECK-LABEL: @test5(
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* noundef nonnull dereferenceable(1) [[STR:%.*]])
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i32 @strlen(i8* nocapture noundef nonnull dereferenceable(1) [[STR:%.*]]) #[[ATTR1]]
 ; CHECK-NEXT:    [[ENDPTR:%.*]] = getelementptr i8, i8* [[STR]], i32 [[STRLEN]]
 ; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(6) [[ENDPTR]], i8* noundef nonnull align 1 dereferenceable(6) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i32 6, i1 false)
 ; CHECK-NEXT:    ret i8* [[STR]]
 ;
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %temp1 = call i8* @strncat(i8* %str, i8* %src, i32 10)
   ret i8* %temp1
 }

llvm/test/Transforms/InstCombine/strncpy_chk-1.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; Test lib call simplification of __strncpy_chk calls with various values
 ; for len and dstlen.
 ;
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
 
 @a = common global [60 x i8] zeroinitializer, align 1
 @b = common global [60 x i8] zeroinitializer, align 1
 @.str = private constant [12 x i8] c"abcdefghijk\00"
 
 ; Check cases where dstlen >= len
 
 define i8* @test_simplify1() {
 ; CHECK-LABEL: @test_simplify1(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__strncpy_chk(i8* %dst, i8* %src, i32 12, i32 60)
   ret i8* %ret
 }
 
 define i8* @test_simplify2() {
 ; CHECK-LABEL: @test_simplify2(
-; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false)
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias noundef nonnull writeonly align 1 dereferenceable(12) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly align 1 dereferenceable(12) getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i32 0, i32 0), i32 12, i1 false) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [12 x i8], [12 x i8]* @.str, i32 0, i32 0
 
   %ret = call i8* @__strncpy_chk(i8* %dst, i8* %src, i32 12, i32 12)
   ret i8* %ret
 }
 
 define i8* @test_simplify3() {
 ; CHECK-LABEL: @test_simplify3(
-; CHECK-NEXT:    [[STRNCPY:%.*]] = call i8* @strncpy(i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noundef nonnull dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0), i32 12)
+; CHECK-NEXT:    [[STRNCPY:%.*]] = call i8* @strncpy(i8* noalias noundef nonnull returned writeonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i8* noalias nocapture noundef nonnull readonly dereferenceable(1) getelementptr inbounds ([60 x i8], [60 x i8]* @b, i32 0, i32 0), i32 12) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0)
 ;
   %dst = getelementptr inbounds [60 x i8], [60 x i8]* @a, i32 0, i32 0
   %src = getelementptr inbounds [60 x i8], [60 x i8]* @b, i32 0, i32 0
 
   %ret = call i8* @__strncpy_chk(i8* %dst, i8* %src, i32 12, i32 60)
   ret i8* %ret
 }

llvm/test/Transforms/InstCombine/strndup.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 @hello = constant [6 x i8] c"hello\00"
 @null = constant [1 x i8] zeroinitializer
 
 declare i8* @strndup(i8*, i32)
 
 define i8* @test1() {
 ; CHECK-LABEL: @test1(
-; CHECK-NEXT:    [[STRDUP:%.*]] = call dereferenceable_or_null(1) i8* @strdup(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @null, i64 0, i64 0))
+; CHECK-NEXT:    [[STRDUP:%.*]] = call noalias dereferenceable_or_null(1) i8* @strdup(i8* nocapture readonly getelementptr inbounds ([1 x i8], [1 x i8]* @null, i64 0, i64 0)) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    ret i8* [[STRDUP]]
 ;
   %src = getelementptr [1 x i8], [1 x i8]* @null, i32 0, i32 0
   %ret = call i8* @strndup(i8* %src, i32 0)
   ret i8* %ret
 }
 
 define i8* @test2() {
 ; CHECK-LABEL: @test2(
 ; CHECK-NEXT:    [[RET:%.*]] = call dereferenceable_or_null(5) i8* @strndup(i8* dereferenceable(6) getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0), i32 4)
 ; CHECK-NEXT:    ret i8* [[RET]]
 ;
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %ret = call i8* @strndup(i8* %src, i32 4)
   ret i8* %ret
 }
 
 define i8* @test3() {
 ; CHECK-LABEL: @test3(
-; CHECK-NEXT:    [[STRDUP:%.*]] = call dereferenceable_or_null(6) i8* @strdup(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0))
+; CHECK-NEXT:    [[STRDUP:%.*]] = call noalias dereferenceable_or_null(6) i8* @strdup(i8* nocapture readonly getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[STRDUP]]
 ;
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %ret = call i8* @strndup(i8* %src, i32 5)
   ret i8* %ret
 }
 
 define i8* @test4() {
 ; CHECK-LABEL: @test4(
-; CHECK-NEXT:    [[STRDUP:%.*]] = call dereferenceable_or_null(6) i8* @strdup(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0))
+; CHECK-NEXT:    [[STRDUP:%.*]] = call noalias dereferenceable_or_null(6) i8* @strdup(i8* nocapture readonly getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[STRDUP]]
 ;
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %ret = call i8* @strndup(i8* %src, i32 6)
   ret i8* %ret
 }
 
 define i8* @test5() {
 ; CHECK-LABEL: @test5(
-; CHECK-NEXT:    [[STRDUP:%.*]] = call dereferenceable_or_null(6) i8* @strdup(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0))
+; CHECK-NEXT:    [[STRDUP:%.*]] = call noalias dereferenceable_or_null(6) i8* @strdup(i8* nocapture readonly getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0)) #[[ATTR0]]
 ; CHECK-NEXT:    ret i8* [[STRDUP]]
 ;
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %ret = call i8* @strndup(i8* %src, i32 7)
   ret i8* %ret
 }
 
 define i8* @test6(i32 %n) {
 ; CHECK-LABEL: @test6(
 ; CHECK-NEXT:    [[RET:%.*]] = call i8* @strndup(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i64 0, i64 0), i32 [[N:%.*]])
 ; CHECK-NEXT:    ret i8* [[RET]]
 ;
   %src = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
   %ret = call i8* @strndup(i8* %src, i32 %n)
   ret i8* %ret
 }

llvm/test/Transforms/InstCombine/strstr-1.ll

;
   %ret = call i8* @strstr(i8* %str, i8* %pat)
   ret i8* %ret
 }
 
 ; Check strstr(str, "a") -> strchr(str, 'a').
 
 define i8* @test_simplify2(i8* %str) {
 ; CHECK-LABEL: @test_simplify2(
-; CHECK-NEXT:    [[STRCHR:%.*]] = call i8* @strchr(i8* noundef nonnull dereferenceable(1) [[STR:%.*]], i32 97)
+; CHECK-NEXT:    [[STRCHR:%.*]] = call i8* @strchr(i8* noundef nonnull dereferenceable(1) [[STR:%.*]], i32 97) #[[ATTR1:[0-9]+]]
 ; CHECK-NEXT:    ret i8* [[STRCHR]]
 ;
   %pat = getelementptr inbounds [2 x i8], [2 x i8]* @.str1, i32 0, i32 0
   %ret = call i8* @strstr(i8* %str, i8* %pat)
   ret i8* %ret
 }
 
 ; Check strstr("abcde", "bcd") -> "abcde" + 1.
;
   %ret = call i8* @strstr(i8* %str, i8* %str)
   ret i8* %ret
 }
 
 ; Check strstr(str, pat) == str -> strncmp(str, pat, strlen(str)) == 0.
 
 define i1 @test_simplify5(i8* %str, i8* %pat) {
 ; CHECK-LABEL: @test_simplify5(
-; CHECK-NEXT:    [[STRLEN:%.*]] = call i64 @strlen(i8* noundef nonnull dereferenceable(1) [[PAT:%.*]])
-; CHECK-NEXT:    [[STRNCMP:%.*]] = call i32 @strncmp(i8* [[STR:%.*]], i8* [[PAT]], i64 [[STRLEN]])
+; CHECK-NEXT:    [[STRLEN:%.*]] = call i64 @strlen(i8* nocapture noundef nonnull dereferenceable(1) [[PAT:%.*]]) #[[ATTR1]]
+; CHECK-NEXT:    [[STRNCMP:%.*]] = call i32 @strncmp(i8* nocapture [[STR:%.*]], i8* nocapture [[PAT]], i64 [[STRLEN]]) #[[ATTR1]]
 ; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i32 [[STRNCMP]], 0
 ; CHECK-NEXT:    ret i1 [[CMP1]]
 ;
   %ret = call i8* @strstr(i8* %str, i8* %pat)
   %cmp = icmp eq i8* %ret, %str
   ret i1 %cmp
 }
 

llvm/test/Transforms/MergeICmps/X86/alias-merge-blocks.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -mtriple=x86_64-unknown-unknown -mergeicmps -verify-dom-info -S | FileCheck %s --check-prefix=X86
 
 %S = type { i32, i32, i32, i32 }
 
 define zeroext i1 @opeq1(
 ; X86-LABEL: @opeq1(
 ; X86-NEXT:  "entry+land.rhs.i+land.rhs.i.2+land.rhs.i.3":
 ; X86-NEXT:    [[PTR:%.*]] = alloca i32, align 4
 ; X86-NEXT:    store i32 42, i32* [[PTR]], align 4
 ; X86-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[S:%.*]], %S* [[A:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[S]], %S* [[B:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8*
 ; X86-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8*
-; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 16)
+; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i64 16) #[[ATTR0:[0-9]+]]
 ; X86-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; X86-NEXT:    br label [[OPEQ1_EXIT:%.*]]
 ; X86:       opeq1.exit:
 ; X86-NEXT:    ret i1 [[TMP2]]
 ;
   %S* nocapture readonly dereferenceable(16) %a,
   %S* nocapture readonly dereferenceable(16) %b) local_unnamed_addr #0 {
 

llvm/test/Transforms/MergeICmps/X86/entry-block-shuffled.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -mergeicmps -verify-dom-info -mtriple=x86_64-unknown-unknown -S | FileCheck %s
 
 %S = type { i32, i32, i32, i32 }
 
 ; The entry block is part of the chain. It however can not be merged. We need to
 ; make sure that the control flow is still consistent (goes through each of the
 ; blocks).
 
 define zeroext i1 @opeq1(
 ; CHECK-LABEL: @opeq1(
 ; CHECK-NEXT:  "land.rhs.i+land.rhs.i.2":
 ; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[S:%.*]], %S* [[A:%.*]], i64 0, i32 0
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[S]], %S* [[B:%.*]], i64 0, i32 0
 ; CHECK-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8*
 ; CHECK-NEXT:    [[CSTR3:%.*]] = bitcast i32* [[TMP1]] to i8*
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR3]], i64 8)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR3]], i64 8) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    br i1 [[TMP2]], label [[ENTRY2:%.*]], label [[OPEQ1_EXIT:%.*]]
 ; CHECK:       entry2:
 ; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr inbounds [[S]], %S* [[A]], i64 0, i32 3
 ; CHECK-NEXT:    [[TMP4:%.*]] = getelementptr inbounds [[S]], %S* [[B]], i64 0, i32 2
 ; CHECK-NEXT:    [[TMP5:%.*]] = load i32, i32* [[TMP3]], align 4
 ; CHECK-NEXT:    [[TMP6:%.*]] = load i32, i32* [[TMP4]], align 4
 ; CHECK-NEXT:    [[TMP7:%.*]] = icmp eq i32 [[TMP5]], [[TMP6]]

llvm/test/Transforms/MergeICmps/X86/gep-references-bb.ll

 ; CHECK-NEXT:    [[R0:%.*]] = load i32, i32* [[R0_ADDR]], align 4
 ; CHECK-NEXT:    [[CMP0:%.*]] = icmp eq i32 [[L0]], [[R0]]
 ; CHECK-NEXT:    br i1 [[CMP0]], label %"bb1+bb2", label [[FINAL:%.*]]
 ; CHECK:       "bb1+bb2":
 ; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[TRIPLE]], %Triple* [[LHS]], i64 0, i32 2
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds i32, i32* [[GEP]], i64 2
 ; CHECK-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8*
 ; CHECK-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8*
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 8)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i64 8) #[[ATTR0:[0-9]+]]
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    br label [[FINAL]]
 ; CHECK:       final:
 ; CHECK-NEXT:    [[RET:%.*]] = phi i1 [ false, [[BB0:%.*]] ], [ [[TMP2]], %"bb1+bb2" ]
 ; CHECK-NEXT:    ret i1 [[RET]]
 ;
 bb0:
   store i32 1, i32* @g

llvm/test/Transforms/MergeICmps/X86/int64-and-ptr.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --force-update
 ; RUN: opt < %s -mtriple=x86_64-unknown-unknown -mergeicmps -verify-dom-info -S 2>&1 | FileCheck %s
 
 ; 8-byte int and 8-byte pointer should merge into a 16-byte memcmp.
 
 %struct.outer = type { i64, %struct.inner* }
 %struct.inner = type { i32, i32, i32 }
 
 ; Function Attrs: nounwind uwtable
 define i1 @test(%struct.outer* align 8 dereferenceable(16) %o1, %struct.outer* align 8 dereferenceable(116) %o2) local_unnamed_addr #0 {
 ; CHECK-LABEL: @test(
 ; CHECK-NEXT:  "entry+if.then":
 ; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[STRUCT_OUTER:%.*]], %struct.outer* [[O1:%.*]], i64 0, i32 0
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[STRUCT_OUTER]], %struct.outer* [[O2:%.*]], i64 0, i32 0
 ; CHECK-NEXT:    [[CSTR:%.*]] = bitcast i64* [[TMP0]] to i8*
 ; CHECK-NEXT:    [[CSTR1:%.*]] = bitcast i64* [[TMP1]] to i8*
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 16)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i64 16) #[[ATTR2:[0-9]+]]
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    br label [[IF_END5:%.*]]
 ; CHECK:       if.end5:
 ; CHECK-NEXT:    ret i1 [[TMP2]]
 ;
 entry:
   %p1 = getelementptr inbounds %struct.outer, %struct.outer* %o1, i64 0, i32 0
   %0 = load i64, i64* %p1, align 8

llvm/test/Transforms/MergeICmps/X86/multiple-blocks-does-work.ll

 ; X86-NEXT:    call void (...) @foo()
 ; X86-NEXT:    [[CMP2_I:%.*]] = icmp eq i32 [[TMP2]], [[TMP3]]
 ; X86-NEXT:    br i1 [[CMP2_I]], label %"land.rhs.i.2+land.rhs.i.3", label [[OPEQ1_EXIT]]
 ; X86:       "land.rhs.i.2+land.rhs.i.3":
 ; X86-NEXT:    [[TMP4:%.*]] = getelementptr inbounds [[S]], %S* [[A]], i64 0, i32 2
 ; X86-NEXT:    [[TMP5:%.*]] = getelementptr inbounds [[S]], %S* [[B]], i64 0, i32 2
 ; X86-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP4]] to i8*
 ; X86-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[TMP5]] to i8*
-; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 8)
+; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i64 8) #[[ATTR0:[0-9]+]]
 ; X86-NEXT:    [[TMP6:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; X86-NEXT:    br label [[OPEQ1_EXIT]]
 ; X86:       opeq1.exit:
 ; X86-NEXT:    [[TMP7:%.*]] = phi i1 [ false, [[ENTRY:%.*]] ], [ false, [[LAND_RHS_I]] ], [ [[TMP6]], %"land.rhs.i.2+land.rhs.i.3" ]
 ; X86-NEXT:    ret i1 [[TMP7]]
 ;
   %S* nocapture readonly dereferenceable(16) %a,
   %S* nocapture readonly dereferenceable(16) %b) local_unnamed_addr #0 {

llvm/test/Transforms/MergeICmps/X86/pair-int32-int32.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -passes='require<domtree>,mergeicmps,verify<domtree>' -mtriple=x86_64-unknown-unknown -S | FileCheck %s --check-prefix=X86
 ; RUN: opt < %s -mergeicmps -verify-dom-info -mtriple=x86_64-unknown-unknown -S -disable-simplify-libcalls | FileCheck %s --check-prefix=X86-NOBUILTIN
 
 %S = type { i32, i32 }
 
 define zeroext i1 @opeq1(
 ; X86-LABEL: @opeq1(
 ; X86-NEXT:  "entry+land.rhs.i":
 ; X86-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[S:%.*]], %S* [[A:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[S]], %S* [[B:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8*
 ; X86-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8*
-; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 8)
+; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i64 8) #[[ATTR0:[0-9]+]]
 ; X86-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; X86-NEXT:    br label [[OPEQ1_EXIT:%.*]]
 ; X86:       opeq1.exit:
 ; X86-NEXT:    ret i1 [[TMP2]]
 ;
 ; X86-NOBUILTIN-LABEL: @opeq1(
 ; X86-NOBUILTIN-NEXT:  entry:
 ; X86-NOBUILTIN-NEXT:    [[FIRST_I:%.*]] = getelementptr inbounds [[S:%.*]], %S* [[A:%.*]], i64 0, i32 0

 ; Same as above, but the two blocks are in inverse order.
 define zeroext i1 @opeq1_inverse(
 ; X86-LABEL: @opeq1_inverse(
 ; X86-NEXT:  "land.rhs.i+entry":
 ; X86-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[S:%.*]], %S* [[A:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[S]], %S* [[B:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8*
 ; X86-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8*
-; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 8)
+; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i64 8) #[[ATTR0]]
 ; X86-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; X86-NEXT:    br label [[OPEQ1_EXIT:%.*]]
 ; X86:       opeq1.exit:
 ; X86-NEXT:    ret i1 [[TMP2]]
 ;
 ; X86-NOBUILTIN-LABEL: @opeq1_inverse(
 ; X86-NOBUILTIN-NEXT:  entry:
 ; X86-NOBUILTIN-NEXT:    [[FIRST_I:%.*]] = getelementptr inbounds [[S:%.*]], %S* [[A:%.*]], i64 0, i32 1

llvm/test/Transforms/MergeICmps/X86/pr41917.ll

 ; CHECK:       land.rhs:
 ; CHECK-NEXT:    [[CALL1:%.*]] = tail call zeroext i1 @f2() #[[ATTR3]]
 ; CHECK-NEXT:    br label %"land.end+land.rhs3"
 ; CHECK:       "land.end+land.rhs3":
 ; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[CLASS_A:%.*]], %class.a* [[G:%.*]], i32 0, i32 1
 ; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[CLASS_A]], %class.a* [[P2:%.*]], i32 0, i32 1
 ; CHECK-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8*
 ; CHECK-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8*
-; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i32 8)
+; CHECK-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i32 8) #[[ATTR2:[0-9]+]]
 ; CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; CHECK-NEXT:    br label [[LAND_END6:%.*]]
 ; CHECK:       land.end6:
 ; CHECK-NEXT:    ret i1 [[TMP2]]
 ;
 entry:
   %call = tail call zeroext i1 @f2() #2
   br i1 %call, label %land.rhs, label %land.end

llvm/test/Transforms/MergeICmps/X86/split-block-does-work.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -mergeicmps -verify-dom-info -mtriple=x86_64-unknown-unknown -S | FileCheck %s --check-prefix=X86
 
 %S = type { i32, i32, i32, i32 }
 
 declare void @foo(...)  nounwind readnone
 
 ; We can split %entry and create a memcmp(16 bytes).
 define zeroext i1 @opeq1(
 ; X86-LABEL: @opeq1(
 ; X86-NEXT:  "entry+land.rhs.i+land.rhs.i.2+land.rhs.i.3":
 ; X86-NEXT:    call void (...) @foo()
 ; X86-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [[S:%.*]], %S* [[A:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[TMP1:%.*]] = getelementptr inbounds [[S]], %S* [[B:%.*]], i64 0, i32 0
 ; X86-NEXT:    [[CSTR:%.*]] = bitcast i32* [[TMP0]] to i8*
 ; X86-NEXT:    [[CSTR1:%.*]] = bitcast i32* [[TMP1]] to i8*
-; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* [[CSTR]], i8* [[CSTR1]], i64 16)
+; X86-NEXT:    [[MEMCMP:%.*]] = call i32 @memcmp(i8* nocapture [[CSTR]], i8* nocapture [[CSTR1]], i64 16) #[[ATTR1:[0-9]+]]
 ; X86-NEXT:    [[TMP2:%.*]] = icmp eq i32 [[MEMCMP]], 0
 ; X86-NEXT:    br label [[OPEQ1_EXIT:%.*]]
 ; X86:       opeq1.exit:
 ; X86-NEXT:    ret i1 [[TMP2]]
 ;
 ; Make sure this call is moved to the beginning of the entry block.
   %S* nocapture readonly dereferenceable(16) %a,
   %S* nocapture readonly dereferenceable(16) %b) local_unnamed_addr #0 {