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[X86] Provide lighter weight getTargetShuffleMask wrapper. NFCI.

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Most callers to getTargetShuffleMask don't use the IsUnary flag.
This commit is contained in:
Simon Pilgrim 2021-03-12 12:51:36 +00:00
parent 81b44f54a3
commit ddbea9a58f
1 changed files with 16 additions and 20 deletions
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36
lib/Target/X86/X86ISelLowering.cpp
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@ -7216,6 +7216,14 @@ static bool getTargetShuffleMask(SDNode *N, MVT VT, bool AllowSentinelZero,
return true;
}
// Wrapper for getTargetShuffleMask with InUnary;
static bool getTargetShuffleMask(SDNode *N, MVT VT, bool AllowSentinelZero,
SmallVectorImpl<SDValue> &Ops,
SmallVectorImpl<int> &Mask) {
bool IsUnary;
return getTargetShuffleMask(N, VT, AllowSentinelZero, Ops, Mask, IsUnary);
}
/// Compute whether each element of a shuffle is zeroable.
///
/// A "zeroable" vector shuffle element is one which can be lowered to zero.
@ -7956,10 +7964,8 @@ static SDValue getShuffleScalarElt(SDValue Op, unsigned Index,
int NumElems = (int)ShufVT.getVectorNumElements();
SmallVector<int, 16> ShuffleMask;
SmallVector<SDValue, 16> ShuffleOps;
bool IsUnary;
if (!getTargetShuffleMask(Op.getNode(), ShufVT, true, ShuffleOps,
ShuffleMask, IsUnary))
ShuffleMask))
return SDValue();
int Elt = ShuffleMask[Index];
@ -34433,11 +34439,9 @@ void X86TargetLowering::computeKnownBitsForTargetNode(const SDValue Op,
// Handle target shuffles.
// TODO - use resolveTargetShuffleInputs once we can limit recursive depth.
if (isTargetShuffle(Opc)) {
bool IsUnary;
SmallVector<int, 64> Mask;
SmallVector<SDValue, 2> Ops;
if (getTargetShuffleMask(Op.getNode(), VT.getSimpleVT(), true, Ops, Mask,
IsUnary)) {
if (getTargetShuffleMask(Op.getNode(), VT.getSimpleVT(), true, Ops, Mask)) {
unsigned NumOps = Ops.size();
unsigned NumElts = VT.getVectorNumElements();
if (Mask.size() == NumElts) {
@ -34572,11 +34576,9 @@ unsigned X86TargetLowering::ComputeNumSignBitsForTargetNode(
// Handle target shuffles.
// TODO - use resolveTargetShuffleInputs once we can limit recursive depth.
if (isTargetShuffle(Opcode)) {
bool IsUnary;
SmallVector<int, 64> Mask;
SmallVector<SDValue, 2> Ops;
if (getTargetShuffleMask(Op.getNode(), VT.getSimpleVT(), true, Ops, Mask,
IsUnary)) {
if (getTargetShuffleMask(Op.getNode(), VT.getSimpleVT(), true, Ops, Mask)) {
unsigned NumOps = Ops.size();
unsigned NumElts = VT.getVectorNumElements();
if (Mask.size() == NumElts) {
@ -36592,9 +36594,8 @@ static SmallVector<int, 4> getPSHUFShuffleMask(SDValue N) {
MVT VT = N.getSimpleValueType();
SmallVector<int, 4> Mask;
SmallVector<SDValue, 2> Ops;
bool IsUnary;
bool HaveMask =
getTargetShuffleMask(N.getNode(), VT, false, Ops, Mask, IsUnary);
getTargetShuffleMask(N.getNode(), VT, false, Ops, Mask);
(void)HaveMask;
assert(HaveMask);
@ -41190,14 +41191,11 @@ static SDValue combineSelect(SDNode *N, SelectionDAG &DAG,
LHS.getOpcode() == X86ISD::PSHUFB && RHS.getOpcode() == X86ISD::PSHUFB &&
LHS.hasOneUse() && RHS.hasOneUse()) {
MVT SimpleVT = VT.getSimpleVT();
bool LHSUnary, RHSUnary;
SmallVector<SDValue, 1> LHSOps, RHSOps;
SmallVector<int, 64> LHSMask, RHSMask, CondMask;
if (createShuffleMaskFromVSELECT(CondMask, Cond) &&
getTargetShuffleMask(LHS.getNode(), SimpleVT, true, LHSOps, LHSMask,
LHSUnary) &&
getTargetShuffleMask(RHS.getNode(), SimpleVT, true, RHSOps, RHSMask,
RHSUnary)) {
getTargetShuffleMask(LHS.getNode(), SimpleVT, true, LHSOps, LHSMask) &&
getTargetShuffleMask(RHS.getNode(), SimpleVT, true, RHSOps, RHSMask)) {
int NumElts = VT.getVectorNumElements();
for (int i = 0; i != NumElts; ++i) {
if (CondMask[i] < NumElts)
@ -45740,13 +45738,12 @@ static bool isHorizontalBinOp(unsigned HOpcode, SDValue &LHS, SDValue &RHS,
Op = Op.getOperand(0);
UseSubVector = true;
}
bool IsUnary;
SmallVector<SDValue, 2> SrcOps;
SmallVector<int, 16> SrcShuffleMask;
SDValue BC = peekThroughBitcasts(Op);
if (isTargetShuffle(BC.getOpcode()) &&
getTargetShuffleMask(BC.getNode(), BC.getSimpleValueType(), false,
SrcOps, SrcShuffleMask, IsUnary)) {
SrcOps, SrcShuffleMask)) {
if (!UseSubVector && SrcShuffleMask.size() == NumElts &&
SrcOps.size() <= 2) {
N0 = SrcOps.size() > 0 ? SrcOps[0] : SDValue();
@ -49311,11 +49308,10 @@ static SDValue combineConcatVectorOps(const SDLoc &DL, MVT VT,
int NumSrcElts = OpVT.getVectorNumElements();
SmallVector<int, 64> ConcatMask;
for (unsigned i = 0; i != NumOps; ++i) {
bool IsUnary;
SmallVector<int, 64> SubMask;
SmallVector<SDValue, 2> SubOps;
if (!getTargetShuffleMask(Ops[i].getNode(), OpVT, false, SubOps,
SubMask, IsUnary))
SubMask))
break;
for (int M : SubMask) {
if (0 <= M) {