diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index 6c1284cbd5..fcdd73d0a6 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -548,6 +548,9 @@ static Instruction *FoldOpIntoSelect(Instruction &Op, SelectInst *SI, Value *FV = SI->getOperand(2); if (isa<Constant>(TV) || isa<Constant>(FV)) { + // Bool selects with constant operands can be folded to logical ops. + if (SI->getType() == Type::BoolTy) return 0; + Value *SelectTrueVal = FoldOperationIntoSelectOperand(Op, TV, IC); Value *SelectFalseVal = FoldOperationIntoSelectOperand(Op, FV, IC); |