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SLPVectorizer: Use the type of the value loaded/stored to get the ABI alignment

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We were using the pointer type which is incorrect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215162 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Arnold Schwaighofer
2014-08-07 22:47:27 +00:00
parent b93c57c0a9
commit 2158dec965
2 changed files with 32 additions and 3 deletions
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5
lib/Transforms/Vectorize/SLPVectorizer.cpp
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@@ -1990,6 +1990,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
setInsertPointAfterBundle(E->Scalars);
LoadInst *LI = cast<LoadInst>(VL0);
Type *ScalarLoadTy = LI->getType();
unsigned AS = LI->getPointerAddressSpace();
Value *VecPtr = Builder.CreateBitCast(LI->getPointerOperand(),
@@ -1997,7 +1998,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
unsigned Alignment = LI->getAlignment();
LI = Builder.CreateLoad(VecPtr);
if (!Alignment)
Alignment = DL->getABITypeAlignment(LI->getPointerOperand()->getType());
Alignment = DL->getABITypeAlignment(ScalarLoadTy);
LI->setAlignment(Alignment);
E->VectorizedValue = LI;
++NumVectorInstructions;
@@ -2019,7 +2020,7 @@ Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
VecTy->getPointerTo(AS));
StoreInst *S = Builder.CreateStore(VecValue, VecPtr);
if (!Alignment)
Alignment = DL->getABITypeAlignment(SI->getPointerOperand()->getType());
Alignment = DL->getABITypeAlignment(SI->getValueOperand()->getType());
S->setAlignment(Alignment);
E->VectorizedValue = S;
++NumVectorInstructions;