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Fix Bug: test/Regression/Transforms/InstCombine/2002-09-08-PointerShiftBug.ll

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3626 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-09-08 21:39:07 +00:00
parent 05eb9581b2
commit e30e1cf029
1 changed files with 1 additions and 0 deletions
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lib/Transforms/Scalar/InstructionCombining.cpp
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@ -492,6 +492,7 @@ Instruction *InstCombiner::visitShiftInst(Instruction &I) {
if (ConstantUInt *CUI = dyn_cast<ConstantUInt>(Op1)) {
unsigned TypeBits = Op0->getType()->getPrimitiveSize()*8;
if (CUI->getValue() >= TypeBits &&
TypeBits && // FIXME: Handle pointer operands here. This should go away
!(Op0->getType()->isSigned() && I.getOpcode() == Instruction::Shr))
return ReplaceInstUsesWith(I, Constant::getNullValue(Op0->getType()));
}