diff options
Diffstat (limited to 'lib/Transforms/IPO/MergeFunctions.cpp')
| -rw-r--r-- | lib/Transforms/IPO/MergeFunctions.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/MergeFunctions.cpp b/lib/Transforms/IPO/MergeFunctions.cpp index 9abb99d04d..d8eddab923 100644 --- a/lib/Transforms/IPO/MergeFunctions.cpp +++ b/lib/Transforms/IPO/MergeFunctions.cpp @@ -468,6 +468,8 @@ bool FunctionComparator::Enumerate(const Value *V1, const Value *V2) { if (C1->isNullValue() && C2->isNullValue() && isEquivalentType(C1->getType(), C2->getType())) return true; + // Try bitcasting C2 to C1's type. If the bitcast is legal and returns C1 + // then they must have equal bit patterns. return C1->getType()->canLosslesslyBitCastTo(C2->getType()) && C1 == ConstantExpr::getBitCast(const_cast<Constant*>(C2), C1->getType()); } |