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Have RemovePredecessorAndSimplify you SimplifyInstruction

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rather than hasConstantValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119457 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2010-11-17 04:12:05 +00:00
parent d32c4a1756
commit 6ac3386e10
1 changed files with 4 additions and 4 deletions
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8
lib/Transforms/Utils/Local.cpp
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@ -346,13 +346,13 @@ void llvm::RemovePredecessorAndSimplify(BasicBlock *BB, BasicBlock *Pred,
WeakVH PhiIt = &BB->front();
while (PHINode *PN = dyn_cast<PHINode>(PhiIt)) {
PhiIt = &*++BasicBlock::iterator(cast<Instruction>(PhiIt));
Value *PNV = PN->hasConstantValue();
Value *PNV = SimplifyInstruction(PN, TD);
if (PNV == 0) continue;
// If we're able to simplify the phi to a single value, substitute the new
// value into all of its uses.
assert(PNV != PN && "hasConstantValue broken");
assert(PNV != PN && "SimplifyInstruction broken!");
Value *OldPhiIt = PhiIt;
ReplaceAndSimplifyAllUses(PN, PNV, TD);