// 0-x == y --> x+y == 0
// 0-x != y --> x+y != 0
if (Op0.getOpcode() == ISD::SUB && isNullConstant(Op0.getOperand(0)) &&
- (X86CC == X86::COND_E || X86CC == X86::COND_NE)) {
+ Op0.hasOneUse() && (X86CC == X86::COND_E || X86CC == X86::COND_NE)) {
SDVTList VTs = DAG.getVTList(CmpVT, MVT::i32);
SDValue Add = DAG.getNode(X86ISD::ADD, dl, VTs, Op0.getOperand(1), Op1);
return Add.getValue(1);
// x == 0-y --> x+y == 0
// x != 0-y --> x+y != 0
if (Op1.getOpcode() == ISD::SUB && isNullConstant(Op1.getOperand(0)) &&
- (X86CC == X86::COND_E || X86CC == X86::COND_NE)) {
+ Op1.hasOneUse() && (X86CC == X86::COND_E || X86CC == X86::COND_NE)) {
SDVTList VTs = DAG.getVTList(CmpVT, MVT::i32);
SDValue Add = DAG.getNode(X86ISD::ADD, dl, VTs, Op0, Op1.getOperand(1));
return Add.getValue(1);