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same patch as the previous one, but the symmetric case

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37249 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-05-19 00:46:51 +00:00
parent 2ad913b342
commit 7667c0bac3
1 changed files with 1 additions and 1 deletions
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2
lib/CodeGen/SelectionDAG/TargetLowering.cpp
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@ -1808,7 +1808,7 @@ TargetLowering::SimplifySetCC(MVT::ValueType VT, SDOperand N0, SDOperand N1,
if (DAG.isCommutativeBinOp(N1.getOpcode())) {
return DAG.getSetCC(VT, N1.getOperand(0),
DAG.getConstant(0, N1.getValueType()), Cond);
} else {
} else if (N1.Val->hasOneUse()) {
assert(N1.getOpcode() == ISD::SUB && "Unexpected operation!");
// X == (Z-X) --> X<<1 == Z
SDOperand SH = DAG.getNode(ISD::SHL, N1.getValueType(), N0,