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IR: Properly canonicalize PointerType in ConstantExpr GEPs

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No additional test was needed, Other/constant-fold-gep.ll detects this
just fine.

llvm-svn: 194221
This commit is contained in:
David Majnemer 2013-11-07 22:29:42 +00:00
parent d1c4acb898
commit 1cc343770a
1 changed files with 6 additions and 5 deletions
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11
lib/IR/ConstantFold.cpp
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@ -1966,11 +1966,12 @@ static Constant *ConstantFoldGetElementPtrImpl(Constant *C,
else if (VectorType *VTy = dyn_cast<VectorType>(LastTy))
NumElements = VTy->getNumElements();
if (ConstantInt *CI = dyn_cast<ConstantInt>(Idx0)) {
int64_t Idx0Val = CI->getSExtValue();
if (NumElements > 0 && Idx0Val >= 0 &&
(uint64_t)Idx0Val < NumElements)
IsSequentialAccessInRange = true;
if (NumElements > 0) {
if (ConstantInt *CI = dyn_cast<ConstantInt>(Idx0)) {
int64_t Idx0Val = CI->getSExtValue();
if (Idx0Val >= 0 && (uint64_t)Idx0Val < NumElements)
IsSequentialAccessInRange = true;
}
} else if (PointerType *PTy = dyn_cast<PointerType>(LastTy))
// Only handle pointers to sized types, not pointers to functions.
if (PTy->getElementType()->isSized())