diff options
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index d7f5ccf..2d300dc 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -1096,7 +1096,9 @@ void InstCombiner::ComputeMaskedBits(Value *V, const APInt &Mask, Value *L = P->getIncomingValue(i); Value *R = P->getIncomingValue(!i); User *LU = dyn_cast<User>(L); - unsigned Opcode = LU ? getOpcode(LU) : (unsigned)Instruction::UserOp1; + if (!LU) + continue; + unsigned Opcode = getOpcode(LU); // Check for operations that have the property that if // both their operands have low zero bits, the result // will have low zero bits. |