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| author | Devang Patel <dpatel@apple.com> | 2007-04-16 23:03:45 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2007-04-16 23:03:45 +0000 |
| commit | abdff3fecd38123ca114ee19c3cfa86a1f094184 (patch) | |
| tree | c30ac656f72c40ddb0675d10eebaab373206d362 /llvm/lib | |
| parent | 369bec184bcc9485b546092d59b3ee3e4d7ce8b9 (diff) | |
| download | bcm5719-llvm-abdff3fecd38123ca114ee19c3cfa86a1f094184.tar.gz bcm5719-llvm-abdff3fecd38123ca114ee19c3cfa86a1f094184.zip | |
Fix
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html
llvm-svn: 36182
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopUnroll.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopUnroll.cpp b/llvm/lib/Transforms/Scalar/LoopUnroll.cpp index eff35e4f142..63696025cbb 100644 --- a/llvm/lib/Transforms/Scalar/LoopUnroll.cpp +++ b/llvm/lib/Transforms/Scalar/LoopUnroll.cpp @@ -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(); + } } } |
