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Remove dead store by taking a guess at what Chris meant. I wasn't able to 

design a testcase that would tickle this behaviour.

llvm-svn: 82357
This commit is contained in:
Nick Lewycky 2009-09-20 03:48:46 +00:00
parent f878d70720
commit 2949a2398c
1 changed files with 1 additions and 2 deletions
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3
llvm/lib/VMCore/ConstantFold.cpp
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@ -1241,12 +1241,11 @@ static ICmpInst::Predicate evaluateICmpRelation(LLVMContext &Context,
// null pointer, do the comparison with the pre-casted value. // null pointer, do the comparison with the pre-casted value.
if (V2->isNullValue() && if (V2->isNullValue() &&
(isa<PointerType>(CE1->getType()) || CE1->getType()->isInteger())) { (isa<PointerType>(CE1->getType()) || CE1->getType()->isInteger())) {
bool sgnd = isSigned;
if (CE1->getOpcode() == Instruction::ZExt) isSigned = false; if (CE1->getOpcode() == Instruction::ZExt) isSigned = false;
if (CE1->getOpcode() == Instruction::SExt) isSigned = true; if (CE1->getOpcode() == Instruction::SExt) isSigned = true;
return evaluateICmpRelation(Context, CE1Op0, return evaluateICmpRelation(Context, CE1Op0,
Constant::getNullValue(CE1Op0->getType()), Constant::getNullValue(CE1Op0->getType()),
sgnd); isSigned);
} }
break; break;