diff options
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 70fc952891..ad4ef420e9 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -186,12 +186,9 @@ static inline Value *dyn_castNegVal(Value *V) { if (BinaryOperator::isNeg(V)) return BinaryOperator::getNegArgument(cast<BinaryOperator>(V)); - // Constants can be considered to be negated values... - if (Constant *C = dyn_cast<Constant>(V)) { - Constant *NC = *Constant::getNullValue(V->getType()) - *C; - assert(NC && "Couldn't constant fold a subtract!"); - return NC; - } + // Constants can be considered to be negated values if they can be folded... + if (Constant *C = dyn_cast<Constant>(V)) + return *Constant::getNullValue(V->getType()) - *C; return 0; } |