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| author | Chris Lattner <sabre@nondot.org> | 2010-09-05 20:03:09 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-09-05 20:03:09 +0000 |
| commit | 906a675db8af7bacdd78708453fc7f7558e64033 (patch) | |
| tree | ce8babad0c845ed6b4f69b753dedfbcd6a44aba9 /lib/Transforms/Scalar/JumpThreading.cpp | |
| parent | e971131695ac41afd56e82facddccc2807aa9bbd (diff) | |
eliminate some non-obvious casts. UndefValue isa Constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113113 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/JumpThreading.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/JumpThreading.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Transforms/Scalar/JumpThreading.cpp b/lib/Transforms/Scalar/JumpThreading.cpp index 104d5aecbd..da0e21699e 100644 --- a/lib/Transforms/Scalar/JumpThreading.cpp +++ b/lib/Transforms/Scalar/JumpThreading.cpp @@ -443,8 +443,8 @@ ComputeValueKnownInPredecessors(Value *V, BasicBlock *BB,PredValueInfo &Result){ // Try to use constant folding to simplify the binary operator. for (unsigned i = 0, e = LHSVals.size(); i != e; ++i) { - Constant *V = LHSVals[i].first ? LHSVals[i].first : - cast<Constant>(UndefValue::get(BO->getType())); + Constant *V = LHSVals[i].first; + if (V == 0) V = UndefValue::get(BO->getType()); Constant *Folded = ConstantExpr::get(BO->getOpcode(), V, CI); PushConstantIntOrUndef(Result, Folded, LHSVals[i].second); @@ -518,8 +518,8 @@ ComputeValueKnownInPredecessors(Value *V, BasicBlock *BB,PredValueInfo &Result){ ComputeValueKnownInPredecessors(I->getOperand(0), BB, LHSVals); for (unsigned i = 0, e = LHSVals.size(); i != e; ++i) { - Constant *V = LHSVals[i].first ? LHSVals[i].first : - cast<Constant>(UndefValue::get(CmpConst->getType())); + Constant *V = LHSVals[i].first; + if (V == 0) V = UndefValue::get(CmpConst->getType()); Constant *Folded = ConstantExpr::getCompare(Cmp->getPredicate(), V, CmpConst); PushConstantIntOrUndef(Result, Folded, LHSVals[i].second); |