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Make this comment clearer. Instead of using an ambiguous ~ (not) on an icmp 

predicate, swap the order of the operands.

llvm-svn: 54907
This commit is contained in:
Nick Lewycky 2008-08-17 20:02:02 +00:00
parent 53b44029d6
commit 75d4a83f2f
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/Transforms/Scalar/InstructionCombining.cpp
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@ -5830,7 +5830,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
ConstantInt::get(RHSV ^ SignBit));
}
// (icmp u/s (xor A ~SignBit), C) -> (icmp ~s/u A, (xor C ~SignBit))
// (icmp u/s (xor A ~SignBit), C) -> (icmp s/u (xor C ~SignBit), A)
if (!ICI.isEquality() && (~XorCST->getValue()).isSignBit()) {
const APInt &NotSignBit = XorCST->getValue();
ICmpInst::Predicate Pred = ICI.isSignedPredicate()