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Fix bug: ADCE/2003-04-25-PHIPostDominateProblem.ll

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llvm-svn: 5952
This commit is contained in:
Chris Lattner 2003-04-25 22:53:27 +00:00
parent e8b8fb7adc
commit d2960ee802
1 changed files with 10 additions and 9 deletions
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19
lib/Transforms/Scalar/ADCE.cpp
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@ -310,15 +310,16 @@ bool ADCE::doADCE() {
// should be identical to the incoming values for LastDead.
//
for (BasicBlock::iterator II = NextAlive->begin();
PHINode *PN = dyn_cast<PHINode>(II); ++II) {
// Get the incoming value for LastDead...
int OldIdx = PN->getBasicBlockIndex(LastDead);
assert(OldIdx != -1 && "LastDead is not a pred of NextAlive!");
Value *InVal = PN->getIncomingValue(OldIdx);
// Add an incoming value for BB now...
PN->addIncoming(InVal, BB);
}
PHINode *PN = dyn_cast<PHINode>(II); ++II)
if (LiveSet.count(PN)) { // Only modify live phi nodes
// Get the incoming value for LastDead...
int OldIdx = PN->getBasicBlockIndex(LastDead);
assert(OldIdx != -1 &&"LastDead is not a pred of NextAlive!");
Value *InVal = PN->getIncomingValue(OldIdx);
// Add an incoming value for BB now...
PN->addIncoming(InVal, BB);
}
}
}