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Fix

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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36182 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2007-04-16 23:03:45 +00:00
parent b6b40ebc83
commit ac58516cdc
1 changed files with 6 additions and 0 deletions
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6
lib/Transforms/Scalar/LoopUnroll.cpp
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@ -304,6 +304,12 @@ bool LoopUnroll::runOnLoop(Loop *L, LPPassManager &LPM) {
(*SI)->removeIncomingValue(LatchBlock, false);
if (InVal)
(*SI)->addIncoming(InVal, cast<BasicBlock>(LastValueMap[LatchBlock]));
if ((*SI)->getNumIncomingValues() == 0) {
// Remove this phi node.
// If anyone is using this PHI, make them use a dummy value instead...
(*SI)->replaceAllUsesWith(UndefValue::get((*SI)->getType()));
(*SI)->eraseFromParent();
}
}
}