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don't load element before checking to see if it is valid.

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llvm-svn: 134836
This commit is contained in:
Chris Lattner 2011-07-09 18:23:26 +00:00
parent 60e47d6d24
commit 4f458101b7
1 changed files with 2 additions and 2 deletions
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4
lib/VMCore/ConstantFold.cpp
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@ -2172,9 +2172,9 @@ static Constant *ConstantFoldGetElementPtrImpl(Constant *C,
bool inBounds, bool inBounds,
IndexTy const *Idxs, IndexTy const *Idxs,
unsigned NumIdx) { unsigned NumIdx) {
if (NumIdx == 0) return C;
Constant *Idx0 = cast<Constant>(Idxs[0]); Constant *Idx0 = cast<Constant>(Idxs[0]);
if (NumIdx == 0 || if ((NumIdx == 1 && Idx0->isNullValue()))
(NumIdx == 1 && Idx0->isNullValue()))
return C; return C;
if (isa<UndefValue>(C)) { if (isa<UndefValue>(C)) {