forked from OSchip/llvm-project
[X86] Move splat addends from the gather/scatter index operand to the base address
This can avoid a vector add and a constant pool load. Or an explicit broadcast in case of non-constant. Also reverse the transform any time we encounter a constant index addend that can't be moved to base. In that case pull the constant from base into the index. This reduces code size needed for the displacement since we needed the index add anyway. Limit this to scale of 1 to avoid divisibility and wrap issues. Authored by Craig. Reviewed By: craig.topper Differential Revision: https://reviews.llvm.org/D111595
This commit is contained in:
Phoebe Wang
parent
b288d08fbb
commit
79f9dfef0d
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@ -216,6 +216,8 @@ namespace {
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bool matchAdd(SDValue &N, X86ISelAddressMode &AM, unsigned Depth);
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bool matchAddressRecursively(SDValue N, X86ISelAddressMode &AM,
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unsigned Depth);
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bool matchVectorAddressRecursively(SDValue N, X86ISelAddressMode &AM,
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unsigned Depth);
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bool matchAddressBase(SDValue N, X86ISelAddressMode &AM);
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bool selectAddr(SDNode *Parent, SDValue N, SDValue &Base,
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SDValue &Scale, SDValue &Index, SDValue &Disp,
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@ -2468,10 +2470,18 @@ bool X86DAGToDAGISel::matchAddressBase(SDValue N, X86ISelAddressMode &AM) {
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return false;
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}
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/// Helper for selectVectorAddr. Handles things that can be folded into a
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/// gather scatter address. The index register and scale should have already
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/// been handled.
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bool X86DAGToDAGISel::matchVectorAddress(SDValue N, X86ISelAddressMode &AM) {
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bool X86DAGToDAGISel::matchVectorAddressRecursively(SDValue N,
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X86ISelAddressMode &AM,
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unsigned Depth) {
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SDLoc dl(N);
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LLVM_DEBUG({
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dbgs() << "MatchVectorAddress: ";
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AM.dump(CurDAG);
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});
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// Limit recursion.
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if (Depth > 5)
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return matchAddressBase(N, AM);
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// TODO: Support other operations.
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switch (N.getOpcode()) {
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case ISD::Constant: {
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@ -2484,11 +2494,40 @@ bool X86DAGToDAGISel::matchVectorAddress(SDValue N, X86ISelAddressMode &AM) {
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if (!matchWrapper(N, AM))
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return false;
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break;
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case ISD::ADD: {
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// Add an artificial use to this node so that we can keep track of
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// it if it gets CSE'd with a different node.
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HandleSDNode Handle(N);
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X86ISelAddressMode Backup = AM;
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if (!matchVectorAddressRecursively(N.getOperand(0), AM, Depth + 1) &&
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!matchVectorAddressRecursively(Handle.getValue().getOperand(1), AM,
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Depth + 1))
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return false;
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AM = Backup;
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// Try again after commuting the operands.
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if (!matchVectorAddressRecursively(Handle.getValue().getOperand(1), AM,
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Depth + 1) &&
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!matchVectorAddressRecursively(Handle.getValue().getOperand(0), AM,
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Depth + 1))
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return false;
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AM = Backup;
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N = Handle.getValue();
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}
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}
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return matchAddressBase(N, AM);
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}
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/// Helper for selectVectorAddr. Handles things that can be folded into a
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/// gather/scatter address. The index register and scale should have already
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/// been handled.
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bool X86DAGToDAGISel::matchVectorAddress(SDValue N, X86ISelAddressMode &AM) {
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return matchVectorAddressRecursively(N, AM, 0);
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}
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bool X86DAGToDAGISel::selectVectorAddr(MemSDNode *Parent, SDValue BasePtr,
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SDValue IndexOp, SDValue ScaleOp,
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SDValue &Base, SDValue &Scale,
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@ -50283,6 +50283,48 @@ static SDValue combineGatherScatter(SDNode *N, SelectionDAG &DAG,
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}
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}
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const TargetLowering &TLI = DAG.getTargetLoweringInfo();
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EVT PtrVT = TLI.getPointerTy(DAG.getDataLayout());
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// Try to move splat constant adders from the index operand to the base
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// pointer operand. Taking care to multiply by the scale. We can only do
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// this when index element type is the same as the pointer type.
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// Otherwise we need to be sure the math doesn't wrap before the scale.
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if (Index.getOpcode() == ISD::ADD &&
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Index.getValueType().getVectorElementType() == PtrVT &&
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isa<ConstantSDNode>(Scale)) {
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uint64_t ScaleAmt = cast<ConstantSDNode>(Scale)->getZExtValue();
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if (auto *BV = dyn_cast<BuildVectorSDNode>(Index.getOperand(1))) {
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BitVector UndefElts;
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if (ConstantSDNode *C = BV->getConstantSplatNode(&UndefElts)) {
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// FIXME: Allow non-constant?
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if (UndefElts.none()) {
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// Apply the scale.
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APInt Adder = C->getAPIntValue() * ScaleAmt;
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// Add it to the existing base.
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Base = DAG.getNode(ISD::ADD, DL, PtrVT, Base,
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DAG.getConstant(Adder, DL, PtrVT));
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Index = Index.getOperand(0);
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return rebuildGatherScatter(GorS, Index, Base, Scale, DAG);
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}
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}
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// It's also possible base is just a constant. In that case, just
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// replace it with 0 and move the displacement into the index.
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if (BV->isConstant() && isa<ConstantSDNode>(Base) &&
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isOneConstant(Scale)) {
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SDValue Splat = DAG.getSplatBuildVector(Index.getValueType(), DL, Base);
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// Combine the constant build_vector and the constant base.
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Splat = DAG.getNode(ISD::ADD, DL, Index.getValueType(),
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Index.getOperand(1), Splat);
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// Add to the LHS of the original Index add.
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Index = DAG.getNode(ISD::ADD, DL, Index.getValueType(),
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Index.getOperand(0), Splat);
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Base = DAG.getConstant(0, DL, Base.getValueType());
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return rebuildGatherScatter(GorS, Index, Base, Scale, DAG);
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}
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}
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}
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if (DCI.isBeforeLegalizeOps()) {
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unsigned IndexWidth = Index.getScalarValueSizeInBits();
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@ -476,10 +476,9 @@ define <8 x i32> @test9(%struct.ST* %base, <8 x i64> %ind1, <8 x i32>%ind5) {
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; KNL_64-NEXT: vpmovzxdq {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero
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; KNL_64-NEXT: vpmuldq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm1, %zmm1
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; KNL_64-NEXT: vpaddq %zmm1, %zmm0, %zmm0
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; KNL_64-NEXT: vpaddq %zmm0, %zmm4, %zmm0
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; KNL_64-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm0, %zmm1
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; KNL_64-NEXT: vpaddq %zmm0, %zmm4, %zmm1
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; KNL_64-NEXT: kxnorw %k0, %k0, %k1
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; KNL_64-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
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; KNL_64-NEXT: vpgatherqd 72(,%zmm1), %ymm0 {%k1}
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; KNL_64-NEXT: retq
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;
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; KNL_32-LABEL: test9:
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@ -491,12 +490,10 @@ define <8 x i32> @test9(%struct.ST* %base, <8 x i64> %ind1, <8 x i32>%ind5) {
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; KNL_32-NEXT: vpbroadcastd {{.*#+}} ymm3 = [820,820,820,820,820,820,820,820]
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; KNL_32-NEXT: vpmulld %ymm3, %ymm0, %ymm0
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; KNL_32-NEXT: vpaddd %ymm1, %ymm0, %ymm0
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; KNL_32-NEXT: vpbroadcastd {{.*#+}} ymm1 = [68,68,68,68,68,68,68,68]
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; KNL_32-NEXT: vpaddd %ymm1, %ymm0, %ymm0
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; KNL_32-NEXT: vpaddd %ymm0, %ymm2, %ymm1
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; KNL_32-NEXT: movw $255, %ax
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; KNL_32-NEXT: kmovw %eax, %k1
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; KNL_32-NEXT: vpgatherdd (,%zmm1), %zmm0 {%k1}
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; KNL_32-NEXT: vpgatherdd 68(,%zmm1), %zmm0 {%k1}
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; KNL_32-NEXT: # kill: def $ymm0 killed $ymm0 killed $zmm0
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; KNL_32-NEXT: retl
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;
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@ -507,10 +504,9 @@ define <8 x i32> @test9(%struct.ST* %base, <8 x i64> %ind1, <8 x i32>%ind5) {
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; SKX_SMALL-NEXT: vpmovzxdq {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero
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; SKX_SMALL-NEXT: vpmuldq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm1, %zmm1
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; SKX_SMALL-NEXT: vpaddq %zmm1, %zmm0, %zmm0
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; SKX_SMALL-NEXT: vpaddq %zmm0, %zmm2, %zmm0
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; SKX_SMALL-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm0, %zmm1
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; SKX_SMALL-NEXT: vpaddq %zmm0, %zmm2, %zmm1
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; SKX_SMALL-NEXT: kxnorw %k0, %k0, %k1
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; SKX_SMALL-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
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; SKX_SMALL-NEXT: vpgatherqd 72(,%zmm1), %ymm0 {%k1}
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; SKX_SMALL-NEXT: retq
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;
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; SKX_LARGE-LABEL: test9:
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@ -522,11 +518,9 @@ define <8 x i32> @test9(%struct.ST* %base, <8 x i64> %ind1, <8 x i32>%ind5) {
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; SKX_LARGE-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
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; SKX_LARGE-NEXT: vpmullq (%rax){1to8}, %zmm0, %zmm0
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; SKX_LARGE-NEXT: vpaddq %zmm1, %zmm0, %zmm0
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; SKX_LARGE-NEXT: vpaddq %zmm0, %zmm2, %zmm0
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; SKX_LARGE-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
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; SKX_LARGE-NEXT: vpaddq (%rax){1to8}, %zmm0, %zmm1
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; SKX_LARGE-NEXT: vpaddq %zmm0, %zmm2, %zmm1
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; SKX_LARGE-NEXT: kxnorw %k0, %k0, %k1
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; SKX_LARGE-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
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; SKX_LARGE-NEXT: vpgatherqd 72(,%zmm1), %ymm0 {%k1}
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; SKX_LARGE-NEXT: retq
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;
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; SKX_32-LABEL: test9:
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@ -535,10 +529,9 @@ define <8 x i32> @test9(%struct.ST* %base, <8 x i64> %ind1, <8 x i32>%ind5) {
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; SKX_32-NEXT: vpmovqd %zmm0, %ymm0
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; SKX_32-NEXT: vpmulld {{\.?LCPI[0-9]+_[0-9]+}}{1to8}, %ymm0, %ymm0
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; SKX_32-NEXT: vpaddd {{[0-9]+}}(%esp){1to8}, %ymm0, %ymm0
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; SKX_32-NEXT: vpaddd %ymm1, %ymm0, %ymm0
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; SKX_32-NEXT: vpaddd {{\.?LCPI[0-9]+_[0-9]+}}{1to8}, %ymm0, %ymm1
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; SKX_32-NEXT: vpaddd %ymm1, %ymm0, %ymm1
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; SKX_32-NEXT: kxnorw %k0, %k0, %k1
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; SKX_32-NEXT: vpgatherdd (,%ymm1), %ymm0 {%k1}
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; SKX_32-NEXT: vpgatherdd 68(,%ymm1), %ymm0 {%k1}
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; SKX_32-NEXT: retl
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entry:
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%broadcast.splatinsert = insertelement <8 x %struct.ST*> undef, %struct.ST* %base, i32 0
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@ -562,10 +555,9 @@ define <8 x i32> @test10(%struct.ST* %base, <8 x i64> %i1, <8 x i32>%ind5) {
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; KNL_64-NEXT: vpmovzxdq {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero
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; KNL_64-NEXT: vpmuldq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm1, %zmm1
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; KNL_64-NEXT: vpaddq %zmm1, %zmm0, %zmm0
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; KNL_64-NEXT: vpaddq %zmm0, %zmm4, %zmm0
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; KNL_64-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm0, %zmm1
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; KNL_64-NEXT: vpaddq %zmm0, %zmm4, %zmm1
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; KNL_64-NEXT: kxnorw %k0, %k0, %k1
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; KNL_64-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
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; KNL_64-NEXT: vpgatherqd 72(,%zmm1), %ymm0 {%k1}
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; KNL_64-NEXT: retq
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;
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; KNL_32-LABEL: test10:
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@ -577,12 +569,10 @@ define <8 x i32> @test10(%struct.ST* %base, <8 x i64> %i1, <8 x i32>%ind5) {
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; KNL_32-NEXT: vpbroadcastd {{.*#+}} ymm3 = [820,820,820,820,820,820,820,820]
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; KNL_32-NEXT: vpmulld %ymm3, %ymm0, %ymm0
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; KNL_32-NEXT: vpaddd %ymm1, %ymm0, %ymm0
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; KNL_32-NEXT: vpbroadcastd {{.*#+}} ymm1 = [68,68,68,68,68,68,68,68]
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; KNL_32-NEXT: vpaddd %ymm1, %ymm0, %ymm0
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; KNL_32-NEXT: vpaddd %ymm0, %ymm2, %ymm1
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; KNL_32-NEXT: movw $255, %ax
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; KNL_32-NEXT: kmovw %eax, %k1
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; KNL_32-NEXT: vpgatherdd (,%zmm1), %zmm0 {%k1}
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; KNL_32-NEXT: vpgatherdd 68(,%zmm1), %zmm0 {%k1}
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; KNL_32-NEXT: # kill: def $ymm0 killed $ymm0 killed $zmm0
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; KNL_32-NEXT: retl
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;
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@ -593,10 +583,9 @@ define <8 x i32> @test10(%struct.ST* %base, <8 x i64> %i1, <8 x i32>%ind5) {
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; SKX_SMALL-NEXT: vpmovzxdq {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero
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; SKX_SMALL-NEXT: vpmuldq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm1, %zmm1
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; SKX_SMALL-NEXT: vpaddq %zmm1, %zmm0, %zmm0
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; SKX_SMALL-NEXT: vpaddq %zmm0, %zmm2, %zmm0
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; SKX_SMALL-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm0, %zmm1
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; SKX_SMALL-NEXT: vpaddq %zmm0, %zmm2, %zmm1
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; SKX_SMALL-NEXT: kxnorw %k0, %k0, %k1
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; SKX_SMALL-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
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; SKX_SMALL-NEXT: vpgatherqd 72(,%zmm1), %ymm0 {%k1}
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; SKX_SMALL-NEXT: retq
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;
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; SKX_LARGE-LABEL: test10:
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@ -608,11 +597,9 @@ define <8 x i32> @test10(%struct.ST* %base, <8 x i64> %i1, <8 x i32>%ind5) {
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; SKX_LARGE-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
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; SKX_LARGE-NEXT: vpmullq (%rax){1to8}, %zmm0, %zmm0
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; SKX_LARGE-NEXT: vpaddq %zmm1, %zmm0, %zmm0
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; SKX_LARGE-NEXT: vpaddq %zmm0, %zmm2, %zmm0
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; SKX_LARGE-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
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; SKX_LARGE-NEXT: vpaddq (%rax){1to8}, %zmm0, %zmm1
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; SKX_LARGE-NEXT: vpaddq %zmm0, %zmm2, %zmm1
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; SKX_LARGE-NEXT: kxnorw %k0, %k0, %k1
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; SKX_LARGE-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
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; SKX_LARGE-NEXT: vpgatherqd 72(,%zmm1), %ymm0 {%k1}
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; SKX_LARGE-NEXT: retq
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;
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; SKX_32-LABEL: test10:
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@ -621,10 +608,9 @@ define <8 x i32> @test10(%struct.ST* %base, <8 x i64> %i1, <8 x i32>%ind5) {
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; SKX_32-NEXT: vpmovqd %zmm0, %ymm0
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; SKX_32-NEXT: vpmulld {{\.?LCPI[0-9]+_[0-9]+}}{1to8}, %ymm0, %ymm0
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; SKX_32-NEXT: vpaddd {{[0-9]+}}(%esp){1to8}, %ymm0, %ymm0
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; SKX_32-NEXT: vpaddd %ymm1, %ymm0, %ymm0
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; SKX_32-NEXT: vpaddd {{\.?LCPI[0-9]+_[0-9]+}}{1to8}, %ymm0, %ymm1
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; SKX_32-NEXT: vpaddd %ymm1, %ymm0, %ymm1
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; SKX_32-NEXT: kxnorw %k0, %k0, %k1
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; SKX_32-NEXT: vpgatherdd (,%ymm1), %ymm0 {%k1}
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; SKX_32-NEXT: vpgatherdd 68(,%ymm1), %ymm0 {%k1}
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; SKX_32-NEXT: retl
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entry:
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%broadcast.splatinsert = insertelement <8 x %struct.ST*> undef, %struct.ST* %base, i32 0
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@ -5125,39 +5111,30 @@ declare void @llvm.masked.scatter.v8f32.v8p0f32(<8 x float>, <8 x float*>, i32 i
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define <8 x i64> @pr45906(<8 x %struct.foo*> %ptr) {
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; KNL_64-LABEL: pr45906:
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; KNL_64: # %bb.0: # %bb
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; KNL_64-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm0, %zmm1
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; KNL_64-NEXT: kxnorw %k0, %k0, %k1
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; KNL_64-NEXT: vpgatherqq (,%zmm1), %zmm0 {%k1}
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; KNL_64-NEXT: vpgatherqq 8(,%zmm0), %zmm1 {%k1}
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; KNL_64-NEXT: vmovdqa64 %zmm1, %zmm0
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; KNL_64-NEXT: retq
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;
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; KNL_32-LABEL: pr45906:
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; KNL_32: # %bb.0: # %bb
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; KNL_32-NEXT: vpbroadcastd {{.*#+}} ymm1 = [4,4,4,4,4,4,4,4]
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; KNL_32-NEXT: vpaddd %ymm1, %ymm0, %ymm1
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; KNL_32-NEXT: kxnorw %k0, %k0, %k1
|
||||
; KNL_32-NEXT: vpgatherdq (,%ymm1), %zmm0 {%k1}
|
||||
; KNL_32-NEXT: vpgatherdq 4(,%ymm0), %zmm1 {%k1}
|
||||
; KNL_32-NEXT: vmovdqa64 %zmm1, %zmm0
|
||||
; KNL_32-NEXT: retl
|
||||
;
|
||||
; SKX_SMALL-LABEL: pr45906:
|
||||
; SKX_SMALL: # %bb.0: # %bb
|
||||
; SKX_SMALL-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to8}, %zmm0, %zmm1
|
||||
; SKX_SMALL-NEXT: kxnorw %k0, %k0, %k1
|
||||
; SKX_SMALL-NEXT: vpgatherqq (,%zmm1), %zmm0 {%k1}
|
||||
; SKX_SMALL-NEXT: retq
|
||||
;
|
||||
; SKX_LARGE-LABEL: pr45906:
|
||||
; SKX_LARGE: # %bb.0: # %bb
|
||||
; SKX_LARGE-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
|
||||
; SKX_LARGE-NEXT: vpaddq (%rax){1to8}, %zmm0, %zmm1
|
||||
; SKX_LARGE-NEXT: kxnorw %k0, %k0, %k1
|
||||
; SKX_LARGE-NEXT: vpgatherqq (,%zmm1), %zmm0 {%k1}
|
||||
; SKX_LARGE-NEXT: retq
|
||||
; SKX-LABEL: pr45906:
|
||||
; SKX: # %bb.0: # %bb
|
||||
; SKX-NEXT: kxnorw %k0, %k0, %k1
|
||||
; SKX-NEXT: vpgatherqq 8(,%zmm0), %zmm1 {%k1}
|
||||
; SKX-NEXT: vmovdqa64 %zmm1, %zmm0
|
||||
; SKX-NEXT: retq
|
||||
;
|
||||
; SKX_32-LABEL: pr45906:
|
||||
; SKX_32: # %bb.0: # %bb
|
||||
; SKX_32-NEXT: vpaddd {{\.?LCPI[0-9]+_[0-9]+}}{1to8}, %ymm0, %ymm1
|
||||
; SKX_32-NEXT: kxnorw %k0, %k0, %k1
|
||||
; SKX_32-NEXT: vpgatherdq (,%ymm1), %zmm0 {%k1}
|
||||
; SKX_32-NEXT: vpgatherdq 4(,%ymm0), %zmm1 {%k1}
|
||||
; SKX_32-NEXT: vmovdqa64 %zmm1, %zmm0
|
||||
; SKX_32-NEXT: retl
|
||||
bb:
|
||||
%tmp = getelementptr inbounds %struct.foo, <8 x %struct.foo*> %ptr, i64 0, i32 1
|
||||
|
|
@ -5165,3 +5142,69 @@ bb:
|
|||
ret <8 x i64> %tmp1
|
||||
}
|
||||
declare <8 x i64> @llvm.masked.gather.v8i64.v8p0i64(<8 x i64*>, i32, <8 x i1>, <8 x i64>)
|
||||
|
||||
%struct.ST2 = type { i32, i32 }
|
||||
|
||||
; Make sure we don't use a displacement on the gather. The constant from the
|
||||
; struct offset should be folded into the constant pool load for the vector
|
||||
; add.
|
||||
define <8 x i32> @test_const_fold(%struct.ST2* %base, <8 x i64> %i1) {
|
||||
; KNL_64-LABEL: test_const_fold:
|
||||
; KNL_64: # %bb.0: # %entry
|
||||
; KNL_64-NEXT: vpsllq $3, %zmm0, %zmm0
|
||||
; KNL_64-NEXT: vpbroadcastq %rdi, %zmm1
|
||||
; KNL_64-NEXT: vpaddq %zmm1, %zmm0, %zmm0
|
||||
; KNL_64-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %zmm0, %zmm1
|
||||
; KNL_64-NEXT: kxnorw %k0, %k0, %k1
|
||||
; KNL_64-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
|
||||
; KNL_64-NEXT: retq
|
||||
;
|
||||
; KNL_32-LABEL: test_const_fold:
|
||||
; KNL_32: # %bb.0: # %entry
|
||||
; KNL_32-NEXT: vpmovqd %zmm0, %ymm0
|
||||
; KNL_32-NEXT: vpslld $3, %ymm0, %ymm0
|
||||
; KNL_32-NEXT: vpbroadcastd {{[0-9]+}}(%esp), %ymm1
|
||||
; KNL_32-NEXT: vpaddd %ymm1, %ymm0, %ymm0
|
||||
; KNL_32-NEXT: vpaddd {{\.?LCPI[0-9]+_[0-9]+}}, %ymm0, %ymm1
|
||||
; KNL_32-NEXT: movw $255, %ax
|
||||
; KNL_32-NEXT: kmovw %eax, %k1
|
||||
; KNL_32-NEXT: vpgatherdd (,%zmm1), %zmm0 {%k1}
|
||||
; KNL_32-NEXT: # kill: def $ymm0 killed $ymm0 killed $zmm0
|
||||
; KNL_32-NEXT: retl
|
||||
;
|
||||
; SKX_SMALL-LABEL: test_const_fold:
|
||||
; SKX_SMALL: # %bb.0: # %entry
|
||||
; SKX_SMALL-NEXT: vpsllq $3, %zmm0, %zmm0
|
||||
; SKX_SMALL-NEXT: vpbroadcastq %rdi, %zmm1
|
||||
; SKX_SMALL-NEXT: vpaddq %zmm1, %zmm0, %zmm0
|
||||
; SKX_SMALL-NEXT: vpaddq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %zmm0, %zmm1
|
||||
; SKX_SMALL-NEXT: kxnorw %k0, %k0, %k1
|
||||
; SKX_SMALL-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
|
||||
; SKX_SMALL-NEXT: retq
|
||||
;
|
||||
; SKX_LARGE-LABEL: test_const_fold:
|
||||
; SKX_LARGE: # %bb.0: # %entry
|
||||
; SKX_LARGE-NEXT: vpsllq $3, %zmm0, %zmm0
|
||||
; SKX_LARGE-NEXT: vpbroadcastq %rdi, %zmm1
|
||||
; SKX_LARGE-NEXT: vpaddq %zmm1, %zmm0, %zmm0
|
||||
; SKX_LARGE-NEXT: movabsq ${{\.?LCPI[0-9]+_[0-9]+}}, %rax
|
||||
; SKX_LARGE-NEXT: vpaddq (%rax), %zmm0, %zmm1
|
||||
; SKX_LARGE-NEXT: kxnorw %k0, %k0, %k1
|
||||
; SKX_LARGE-NEXT: vpgatherqd (,%zmm1), %ymm0 {%k1}
|
||||
; SKX_LARGE-NEXT: retq
|
||||
;
|
||||
; SKX_32-LABEL: test_const_fold:
|
||||
; SKX_32: # %bb.0: # %entry
|
||||
; SKX_32-NEXT: vpmovqd %zmm0, %ymm0
|
||||
; SKX_32-NEXT: vpslld $3, %ymm0, %ymm0
|
||||
; SKX_32-NEXT: vpaddd {{[0-9]+}}(%esp){1to8}, %ymm0, %ymm0
|
||||
; SKX_32-NEXT: kxnorw %k0, %k0, %k1
|
||||
; SKX_32-NEXT: vpaddd {{\.?LCPI[0-9]+_[0-9]+}}, %ymm0, %ymm1
|
||||
; SKX_32-NEXT: vpgatherdd (,%ymm1), %ymm0 {%k1}
|
||||
; SKX_32-NEXT: retl
|
||||
entry:
|
||||
%add = add <8 x i64> %i1, <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7>
|
||||
%arrayidx = getelementptr %struct.ST2, %struct.ST2* %base, <8 x i64> %add, i32 1
|
||||
%res = call <8 x i32> @llvm.masked.gather.v8i32.v8p0i32(<8 x i32*> %arrayidx, i32 4, <8 x i1> <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>, <8 x i32> undef)
|
||||
ret <8 x i32> %res
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue