diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstructionCombining.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstructionCombining.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp index ae7d08149c6..34a5e1955b6 100644 --- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp +++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp @@ -747,8 +747,9 @@ Value *InstCombiner::SimplifySelectsFeedingBinaryOp(BinaryOperator &I, /// Given a 'sub' instruction, return the RHS of the instruction if the LHS is a /// constant zero (which is the 'negate' form). Value *InstCombiner::dyn_castNegVal(Value *V) const { - if (BinaryOperator::isNeg(V)) - return BinaryOperator::getNegArgument(V); + Value *NegV; + if (match(V, m_Neg(m_Value(NegV)))) + return NegV; // Constants can be considered to be negated values if they can be folded. if (ConstantInt *C = dyn_cast<ConstantInt>(V)) |
