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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23686 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-10-10 16:52:03 +00:00
parent bba9aa3475
commit d739075cbb
1 changed files with 1 additions and 1 deletions
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2
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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@ -216,7 +216,7 @@ static bool MaskedValueIsZero(const SDOperand &Op, uint64_t Mask,
}
return false;
case ISD::ADD:
// (add X, Y) & C == 0 iff (X&C)&(Y&C) == 0 and all bits are low bits.
// (add X, Y) & C == 0 iff (X&C)|(Y&C) == 0 and all bits are low bits.
if ((Mask&(Mask+1)) == 0) { // All low bits
if (MaskedValueIsZero(Op.getOperand(0), Mask, TLI) &&
MaskedValueIsZero(Op.getOperand(1), Mask, TLI))