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-rw-r--r--lib/Transforms/Scalar/LoopStrengthReduce.cpp14
1 files changed, 6 insertions, 8 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index 9562cf8d5d..73e44d7edf 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -1895,15 +1895,13 @@ ICmpInst *LSRInstance::OptimizeMax(ICmpInst *Cond, IVStrideUse* &CondUse) {
if (ICmpInst::isTrueWhenEqual(Pred)) {
// Look for n+1, and grab n.
if (AddOperator *BO = dyn_cast<AddOperator>(Sel->getOperand(1)))
- if (isa<ConstantInt>(BO->getOperand(1)) &&
- cast<ConstantInt>(BO->getOperand(1))->isOne() &&
- SE.getSCEV(BO->getOperand(0)) == MaxRHS)
- NewRHS = BO->getOperand(0);
+ if (ConstantInt *BO1 = dyn_cast<ConstantInt>(BO->getOperand(1)))
+ if (BO1->isOne() && SE.getSCEV(BO->getOperand(0)) == MaxRHS)
+ NewRHS = BO->getOperand(0);
if (AddOperator *BO = dyn_cast<AddOperator>(Sel->getOperand(2)))
- if (isa<ConstantInt>(BO->getOperand(1)) &&
- cast<ConstantInt>(BO->getOperand(1))->isOne() &&
- SE.getSCEV(BO->getOperand(0)) == MaxRHS)
- NewRHS = BO->getOperand(0);
+ if (ConstantInt *BO1 = dyn_cast<ConstantInt>(BO->getOperand(1)))
+ if (BO1->isOne() && SE.getSCEV(BO->getOperand(0)) == MaxRHS)
+ NewRHS = BO->getOperand(0);
if (!NewRHS)
return Cond;
} else if (SE.getSCEV(Sel->getOperand(1)) == MaxRHS)