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llvm-svn: 190490
This commit is contained in:
Matt Arsenault 2013-09-11 05:09:35 +00:00
parent e09a70f65a
commit 8c0c236d92
1 changed files with 9 additions and 6 deletions
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15
lib/Transforms/Scalar/LoopIdiomRecognize.cpp
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@ -988,10 +988,9 @@ processLoopStridedStore(Value *DestPtr, unsigned StoreSize,
Expander.expandCodeFor(Ev->getStart(), Builder.getInt8PtrTy(AddrSpace),
Preheader->getTerminator());
if (mayLoopAccessLocation(BasePtr, AliasAnalysis::ModRef,
CurLoop, BECount,
StoreSize, getAnalysis<AliasAnalysis>(), TheStore)){
StoreSize, getAnalysis<AliasAnalysis>(), TheStore)) {
Expander.clear();
// If we generated new code for the base pointer, clean up.
deleteIfDeadInstruction(BasePtr, *SE, TLI);
@ -1007,17 +1006,21 @@ processLoopStridedStore(Value *DestPtr, unsigned StoreSize,
const SCEV *NumBytesS = SE->getAddExpr(BECount, SE->getConstant(IntPtr, 1),
SCEV::FlagNUW);
if (StoreSize != 1)
if (StoreSize != 1) {
NumBytesS = SE->getMulExpr(NumBytesS, SE->getConstant(IntPtr, StoreSize),
SCEV::FlagNUW);
}
Value *NumBytes =
Expander.expandCodeFor(NumBytesS, IntPtr, Preheader->getTerminator());
CallInst *NewCall;
if (SplatValue)
NewCall = Builder.CreateMemSet(BasePtr, SplatValue,NumBytes,StoreAlignment);
else {
if (SplatValue) {
NewCall = Builder.CreateMemSet(BasePtr,
SplatValue,
NumBytes,
StoreAlignment);
} else {
Module *M = TheStore->getParent()->getParent()->getParent();
Value *MSP = M->getOrInsertFunction("memset_pattern16",
Builder.getVoidTy(),