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Handle constants without going through SCEV.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186593 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem 2013-07-18 18:34:21 +00:00
parent dfacdd04cd
commit 39f59f4d95
1 changed files with 6 additions and 0 deletions
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6
lib/Transforms/Vectorize/SLPVectorizer.cpp
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@ -1033,6 +1033,12 @@ bool BoUpSLP::isConsecutiveAccess(Value *A, Value *B) {
if (GepA && GepA->getPointerOperand() == PtrB)
return false;
ConstantInt *CA = dyn_cast<ConstantInt>(PtrA);
ConstantInt *CB = dyn_cast<ConstantInt>(PtrB);
if (CA && CB) {
return (CA->getSExtValue() + Sz == CB->getSExtValue());
}
// Calculate the distance.
const SCEV *PtrSCEVA = SE->getSCEV(PtrA);
const SCEV *PtrSCEVB = SE->getSCEV(PtrB);