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| author | Nick Lewycky <nicholas@mxc.ca> | 2008-11-20 04:36:13 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2008-11-20 04:36:13 +0000 |
| commit | e42592e33afcef2d9603e87f93175104534787c7 (patch) | |
| tree | d4fb4dd338346441cb7a98ee1837616da15a5b8a /llvm/lib/Analysis/ConstantFolding.cpp | |
| parent | 4b12480063e73e9c10b5e64bb30a4daa9c5ab131 (diff) | |
| download | bcm5719-llvm-e42592e33afcef2d9603e87f93175104534787c7.tar.gz bcm5719-llvm-e42592e33afcef2d9603e87f93175104534787c7.zip | |
undef beats zero. Fix this missed optimization opportunity. Patch by Matt Elder!
llvm-svn: 59705
Diffstat (limited to 'llvm/lib/Analysis/ConstantFolding.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ConstantFolding.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp index 9f94ee38337..597eecc1d23 100644 --- a/llvm/lib/Analysis/ConstantFolding.cpp +++ b/llvm/lib/Analysis/ConstantFolding.cpp @@ -281,7 +281,7 @@ static Constant *FoldBitCast(Constant *C, const Type *DestTy, Constant *llvm::ConstantFoldInstruction(Instruction *I, const TargetData *TD) { if (PHINode *PN = dyn_cast<PHINode>(I)) { if (PN->getNumIncomingValues() == 0) - return Constant::getNullValue(PN->getType()); + return UndefValue::get(PN->getType()); Constant *Result = dyn_cast<Constant>(PN->getIncomingValue(0)); if (Result == 0) return 0; |
