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fix a subtle bug that caused an MSVC warning. Thanks to Jeffc for pointing this out. 

llvm-svn: 34920
This commit is contained in:
Chris Lattner 2007-03-05 00:11:19 +00:00
parent 5fdded1d2f
commit fe53cf2459
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/Transforms/Scalar/InstructionCombining.cpp
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@ -5559,10 +5559,11 @@ Instruction *InstCombiner::FoldShiftByConstant(Value *Op0, ConstantInt *Op1,
// Turn (Y + ((X >> C) & CC)) << C -> ((X & (CC << C)) + (Y << C))
Value *Op0BOOp1 = Op0BO->getOperand(1);
if (isLeftShift && Op0BOOp1->hasOneUse() && V2 == Op1 &&
if (isLeftShift && Op0BOOp1->hasOneUse() &&
match(Op0BOOp1,
m_And(m_Shr(m_Value(V1), m_Value(V2)),m_ConstantInt(CC))) &&
cast<BinaryOperator>(Op0BOOp1)->getOperand(0)-> hasOneUse()) {
cast<BinaryOperator>(Op0BOOp1)->getOperand(0)->hasOneUse() &&
V2 == Op1) {
Instruction *YS = BinaryOperator::createShl(
Op0BO->getOperand(0), Op1,
Op0BO->getName());