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Merge pull request #644 from duck-37/faster-pmovmskb

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Add specialized case for PMOVMSKB with vector ops
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Ryan Houdek 2021-01-12 12:25:50 -08:00 committed by GitHub
commit 067889c861
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2 changed files with 22 additions and 2 deletions
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23
External/FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp vendored
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@ -4005,6 +4005,25 @@ void OpDispatchBuilder::MOVMSKOp(OpcodeArgs) {
StoreResult(GPRClass, Op, CurrentVal, -1);
}
void OpDispatchBuilder::MOVMSKOpOne(OpcodeArgs) {
OrderedNode *CurrentVal = _Constant(0);
OrderedNode *Src = LoadSource(FPRClass, Op, Op->Src[0], Op->Flags, -1);
//TODO: We could remove this VCastFromGOR + VInsGPR pair if we had a VDUPFromGPR instruction that maps directly to AArch64.
auto M = _Constant(0x80'40'20'10'08'04'02'01ULL);
OrderedNode *VMask = _VCastFromGPR(16, 8, M);
VMask = _VInsGPR(16, 8, VMask, M, 1);
auto VCMP = _VCMPLTZ(Src, 16, 1);
auto VAnd = _VAnd(VCMP, VMask, 16, 1);
auto VAdd1 = _VAddP(VAnd, VAnd, 16, 1);
auto VAdd2 = _VAddP(VAdd1, VAdd1, 8, 1);
auto VAdd3 = _VAddP(VAdd2, VAdd2, 8, 1);
StoreResult(GPRClass, Op, _VExtractToGPR(16, 2, VAdd3, 0), -1);
}
template<size_t ElementSize>
void OpDispatchBuilder::PUNPCKLOp(OpcodeArgs) {
auto Size = GetSrcSize(Op);
@ -8373,7 +8392,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
{0xD3, 1, &OpDispatchBuilder::PSRLDOp<8, true, 0>},
{0xD4, 1, &OpDispatchBuilder::PADDQOp<8>},
{0xD5, 1, &OpDispatchBuilder::PMULOp<2, true>},
{0xD7, 1, &OpDispatchBuilder::MOVMSKOp<1>}, // PMOVMSKB
{0xD7, 1, &OpDispatchBuilder::MOVMSKOpOne}, // PMOVMSKB
{0xD8, 1, &OpDispatchBuilder::PSUBSOp<1, false>},
{0xD9, 1, &OpDispatchBuilder::PSUBSOp<2, false>},
{0xDA, 1, &OpDispatchBuilder::PMINUOp<1>},
@ -8674,7 +8693,7 @@ void InstallOpcodeHandlers(Context::OperatingMode Mode) {
{0xD4, 1, &OpDispatchBuilder::PADDQOp<8>},
{0xD5, 1, &OpDispatchBuilder::PMULOp<2, true>},
{0xD6, 1, &OpDispatchBuilder::MOVQOp},
{0xD7, 1, &OpDispatchBuilder::MOVMSKOp<1>}, // PMOVMSKB
{0xD7, 1, &OpDispatchBuilder::MOVMSKOpOne}, // PMOVMSKB
{0xD8, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VUQSUB, 1>},
{0xD9, 1, &OpDispatchBuilder::VectorALUOp<IR::OP_VUQSUB, 2>},
{0xDA, 1, &OpDispatchBuilder::PMINUOp<1>},

1
External/FEXCore/Source/Interface/Core/OpcodeDispatcher.h vendored
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@ -265,6 +265,7 @@ public:
void PMAXSWOp(OpcodeArgs);
template<size_t ElementSize>
void MOVMSKOp(OpcodeArgs);
void MOVMSKOpOne(OpcodeArgs);
template<size_t ElementSize>
void PUNPCKLOp(OpcodeArgs);
template<size_t ElementSize>