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Use dyn_cast instead of isa && cast.

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No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177836 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakub Staszak 2013-03-24 09:25:47 +00:00
parent 15a3c18623
commit 65a47ff554
1 changed files with 6 additions and 8 deletions
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14
lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -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)