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[x86] fix formatting; NFC

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305914 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjay Patel 2017-06-21 14:27:11 +00:00
parent 2f102b0267
commit e5be7e365a
1 changed files with 13 additions and 15 deletions
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28
lib/Target/X86/X86ISelLowering.cpp
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@ -17626,23 +17626,21 @@ SDValue X86TargetLowering::LowerSELECT(SDValue Op, SelectionDAG &DAG) const {
if ((isAllOnesConstant(Op1) || isAllOnesConstant(Op2)) &&
(CondCode == X86::COND_E || CondCode == X86::COND_NE)) {
SDValue Y = isAllOnesConstant(Op2) ? Op1 : Op2;
SDValue CmpOp0 = Cmp.getOperand(0);
// Apply further optimizations for special cases
// (select (x != 0), -1, 0) -> neg & sbb
// (select (x == 0), 0, -1) -> neg & sbb
if (isNullConstant(Y) &&
(isAllOnesConstant(Op1) == (CondCode == X86::COND_NE))) {
SDVTList VTs = DAG.getVTList(CmpOp0.getValueType(), MVT::i32);
SDValue Neg = DAG.getNode(X86ISD::SUB, DL, VTs,
DAG.getConstant(0, DL,
CmpOp0.getValueType()),
CmpOp0);
SDValue Res = DAG.getNode(X86ISD::SETCC_CARRY, DL, Op.getValueType(),
DAG.getConstant(X86::COND_B, DL, MVT::i8),
SDValue(Neg.getNode(), 1));
return Res;
}
(isAllOnesConstant(Op1) == (CondCode == X86::COND_NE))) {
SDVTList VTs = DAG.getVTList(CmpOp0.getValueType(), MVT::i32);
SDValue Zero = DAG.getConstant(0, DL, CmpOp0.getValueType());
SDValue Neg = DAG.getNode(X86ISD::SUB, DL, VTs, Zero, CmpOp0);
SDValue Res = DAG.getNode(X86ISD::SETCC_CARRY, DL, Op.getValueType(),
DAG.getConstant(X86::COND_B, DL, MVT::i8),
SDValue(Neg.getNode(), 1));
return Res;
}
Cmp = DAG.getNode(X86ISD::CMP, DL, MVT::i32,
CmpOp0, DAG.getConstant(1, DL, CmpOp0.getValueType()));
@ -29873,7 +29871,7 @@ static SDValue combineSelectOfTwoConstants(SDNode *N, SelectionDAG &DAG) {
if (N->getValueType(0) == MVT::i32)
Diff = (unsigned)Diff;
bool isFastMultiplier = false;
bool IsFastMultiplier = false;
if (Diff < 10) {
switch ((unsigned char)Diff) {
default:
@ -29885,12 +29883,12 @@ static SDValue combineSelectOfTwoConstants(SDNode *N, SelectionDAG &DAG) {
case 5: // result = lea base(cond, cond*4)
case 8: // result = lea base( , cond*8)
case 9: // result = lea base(cond, cond*8)
isFastMultiplier = true;
IsFastMultiplier = true;
break;
}
}
if (isFastMultiplier) {
if (IsFastMultiplier) {
APInt Diff = TrueC->getAPIntValue() - FalseC->getAPIntValue();
if (NeedsCondInvert) // Invert the condition if needed.
Cond = DAG.getNode(ISD::XOR, DL, Cond.getValueType(), Cond,