diff options
Diffstat (limited to 'llvm/lib/VMCore/Instructions.cpp')
| -rw-r--r-- | llvm/lib/VMCore/Instructions.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/VMCore/Instructions.cpp b/llvm/lib/VMCore/Instructions.cpp index 5aef4592501..9af98e8a9b3 100644 --- a/llvm/lib/VMCore/Instructions.cpp +++ b/llvm/lib/VMCore/Instructions.cpp @@ -167,6 +167,8 @@ Value *PHINode::hasConstantValue() const { // The case where the first value is this PHI. ConstantValue = getIncomingValue(i); } + if (ConstantValue == this) + return UndefValue::get(getType()); return ConstantValue; } |
