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Simplify, suggested by Chris Lattner.

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llvm-svn: 53283
This commit is contained in:
Nick Lewycky 2008-07-09 07:35:26 +00:00
parent 6341c5a7ec
commit a7d102aca3
1 changed files with 1 additions and 1 deletions
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2
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -3478,7 +3478,7 @@ Instruction *InstCombiner::visitAnd(BinaryOperator &I) {
case Instruction::LShr: case Instruction::LShr:
// (1 << x) & 1 --> zext(x == 0) // (1 << x) & 1 --> zext(x == 0)
// (1 >> x) & 1 --> zext(x == 0) // (1 >> x) & 1 --> zext(x == 0)
if (AndRHSMask.getLimitedValue() == 1 && Op0LHS == AndRHS) { if (AndRHSMask == 1 && Op0LHS == AndRHS) {
Instruction *NewICmp = new ICmpInst(ICmpInst::ICMP_EQ, Op0RHS, Instruction *NewICmp = new ICmpInst(ICmpInst::ICMP_EQ, Op0RHS,
Constant::getNullValue(I.getType())); Constant::getNullValue(I.getType()));
InsertNewInstBefore(NewICmp, I); InsertNewInstBefore(NewICmp, I);