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Erase dead instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30298 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2006-09-13 18:55:37 +00:00
parent 0f5e9b99fc
commit cf2112a0a0
1 changed files with 3 additions and 2 deletions
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5
lib/Transforms/Scalar/PredicateSimplifier.cpp
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@ -593,8 +593,8 @@ Value *PredicateSimplifier::resolve(Value *V, const PropertySet &KP) {
void PredicateSimplifier::visitBasicBlock(DTNodeType *DTNode,
PropertySet &KnownProperties) {
BasicBlock *BB = DTNode->getBlock();
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I) {
visitInstruction(I, DTNode, KnownProperties);
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E;) {
visitInstruction(I++, DTNode, KnownProperties);
}
}
@ -612,6 +612,7 @@ void PredicateSimplifier::visitInstruction(Instruction *I,
modified = true;
++NumInstruction;
I->replaceAllUsesWith(V);
I->eraseFromParent();
return;
}