mirror of
https://github.com/Ryujinx/Ryujinx.git
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17620d18db
* ARMeilleure: Add AVX512{F,VL,DQ,BW} detection
Add `UseAvx512Ortho` and `UseAvx512OrthoFloat` optimization flags as
short-hands for `F+VL` and `F+VL+DQ`.
* ARMeilleure: Add initial support for EVEX instruction encoding
Does not implement rounding, or exception controls.
* ARMeilleure: Add `X86Vpternlogd`
Accelerates the vector-`Not` instruction.
* ARMeilleure: Add check for `OSXSAVE` for AVX{2,512}
* ARMeilleure: Add check for `XCR0` flags
Add XCR0 register checks for AVX and AVX512F, following the guidelines
from section 14.3 and 15.2 from the Intel Architecture Software
Developer's Manual.
* ARMeilleure: Remove redundant `ReProtect` and `Dispose`, formatting
* ARMeilleure: Move XCR0 procedure to GetXcr0Eax
* ARMeilleure: Add `XCR0` to `FeatureInfo` structure
* ARMeilleure: Utilize `ReadOnlySpan` for Xcr0 assembly
Avoids an additional allocation
* ARMeilleure: Formatting fixes
* ARMeilleure: Fix EVEX encoding src2 register index
> Just like in VEX prefix, vvvv is provided in inverted form.
* ARMeilleure: Add `X86Vpternlogd` acceleration to `Vmvn_I`
Passes unit tests, verified instruction utilization
* ARMeilleure: Fix EVEX register operand designations
Operand 2 was being sourced improperly.
EVEX encoded instructions source their operands like so:
Operand 1: ModRM:reg
Operand 2: EVEX.vvvvv
Operand 3: ModRM:r/m
Operand 4: Imm
This fixes the improper register designations when emitting vpternlog.
Now "dest", "src1", "src2" arguments emit in the proper order in EVEX instructions.
* ARMeilleure: Add `X86Vpternlogd` acceleration to `Orn_V`
* ARMeilleure: PTC version bump
* ARMeilleure: Update EVEX encoding Debug.Assert to Debug.Fail
* ARMeilleure: Update EVEX encoding comment capitalization
656 lines
25 KiB
C#
656 lines
25 KiB
C#
using ARMeilleure.Decoders;
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using ARMeilleure.IntermediateRepresentation;
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using ARMeilleure.Translation;
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using System;
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using static ARMeilleure.Instructions.InstEmitHelper;
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using static ARMeilleure.Instructions.InstEmitSimdHelper;
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using static ARMeilleure.Instructions.InstEmitSimdHelper32;
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using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
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namespace ARMeilleure.Instructions
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{
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static partial class InstEmit32
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{
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#region "Masks"
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// Same as InstEmitSimdMove, as the instructions do the same thing.
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private static readonly long[] _masksE0_Uzp = new long[]
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{
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13L << 56 | 09L << 48 | 05L << 40 | 01L << 32 | 12L << 24 | 08L << 16 | 04L << 8 | 00L << 0,
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11L << 56 | 10L << 48 | 03L << 40 | 02L << 32 | 09L << 24 | 08L << 16 | 01L << 8 | 00L << 0
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};
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private static readonly long[] _masksE1_Uzp = new long[]
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{
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15L << 56 | 11L << 48 | 07L << 40 | 03L << 32 | 14L << 24 | 10L << 16 | 06L << 8 | 02L << 0,
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15L << 56 | 14L << 48 | 07L << 40 | 06L << 32 | 13L << 24 | 12L << 16 | 05L << 8 | 04L << 0
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};
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#endregion
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public static void Vmov_I(ArmEmitterContext context)
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{
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EmitVectorImmUnaryOp32(context, (op1) => op1);
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}
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public static void Vmvn_I(ArmEmitterContext context)
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{
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if (Optimizations.UseAvx512Ortho)
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{
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EmitVectorUnaryOpSimd32(context, (op1) =>
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{
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return context.AddIntrinsic(Intrinsic.X86Vpternlogd, op1, op1, Const(0b01010101));
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});
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}
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else if (Optimizations.UseSse2)
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{
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EmitVectorUnaryOpSimd32(context, (op1) =>
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{
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Operand mask = X86GetAllElements(context, -1L);
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return context.AddIntrinsic(Intrinsic.X86Pandn, op1, mask);
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});
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}
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else
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{
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EmitVectorUnaryOpZx32(context, (op1) => context.BitwiseNot(op1));
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}
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}
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public static void Vmvn_II(ArmEmitterContext context)
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{
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EmitVectorImmUnaryOp32(context, (op1) => context.BitwiseNot(op1));
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}
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public static void Vmov_GS(ArmEmitterContext context)
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{
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OpCode32SimdMovGp op = (OpCode32SimdMovGp)context.CurrOp;
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Operand vec = GetVecA32(op.Vn >> 2);
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if (op.Op == 1)
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{
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// To general purpose.
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Operand value = context.VectorExtract(OperandType.I32, vec, op.Vn & 0x3);
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SetIntA32(context, op.Rt, value);
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}
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else
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{
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// From general purpose.
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Operand value = GetIntA32(context, op.Rt);
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context.Copy(vec, context.VectorInsert(vec, value, op.Vn & 0x3));
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}
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}
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public static void Vmov_G1(ArmEmitterContext context)
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{
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OpCode32SimdMovGpElem op = (OpCode32SimdMovGpElem)context.CurrOp;
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int index = op.Index + ((op.Vd & 1) << (3 - op.Size));
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if (op.Op == 1)
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{
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// To general purpose.
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Operand value = EmitVectorExtract32(context, op.Vd >> 1, index, op.Size, !op.U);
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SetIntA32(context, op.Rt, value);
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}
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else
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{
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// From general purpose.
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Operand vec = GetVecA32(op.Vd >> 1);
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Operand value = GetIntA32(context, op.Rt);
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context.Copy(vec, EmitVectorInsert(context, vec, value, index, op.Size));
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}
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}
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public static void Vmov_G2(ArmEmitterContext context)
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{
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OpCode32SimdMovGpDouble op = (OpCode32SimdMovGpDouble)context.CurrOp;
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Operand vec = GetVecA32(op.Vm >> 2);
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int vm1 = op.Vm + 1;
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bool sameOwnerVec = (op.Vm >> 2) == (vm1 >> 2);
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Operand vec2 = sameOwnerVec ? vec : GetVecA32(vm1 >> 2);
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if (op.Op == 1)
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{
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// To general purpose.
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Operand lowValue = context.VectorExtract(OperandType.I32, vec, op.Vm & 3);
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SetIntA32(context, op.Rt, lowValue);
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Operand highValue = context.VectorExtract(OperandType.I32, vec2, vm1 & 3);
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SetIntA32(context, op.Rt2, highValue);
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}
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else
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{
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// From general purpose.
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Operand lowValue = GetIntA32(context, op.Rt);
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Operand resultVec = context.VectorInsert(vec, lowValue, op.Vm & 3);
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Operand highValue = GetIntA32(context, op.Rt2);
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if (sameOwnerVec)
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{
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context.Copy(vec, context.VectorInsert(resultVec, highValue, vm1 & 3));
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}
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else
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{
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context.Copy(vec, resultVec);
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context.Copy(vec2, context.VectorInsert(vec2, highValue, vm1 & 3));
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}
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}
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}
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public static void Vmov_GD(ArmEmitterContext context)
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{
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OpCode32SimdMovGpDouble op = (OpCode32SimdMovGpDouble)context.CurrOp;
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Operand vec = GetVecA32(op.Vm >> 1);
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if (op.Op == 1)
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{
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// To general purpose.
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Operand value = context.VectorExtract(OperandType.I64, vec, op.Vm & 1);
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SetIntA32(context, op.Rt, context.ConvertI64ToI32(value));
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SetIntA32(context, op.Rt2, context.ConvertI64ToI32(context.ShiftRightUI(value, Const(32))));
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}
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else
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{
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// From general purpose.
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Operand lowValue = GetIntA32(context, op.Rt);
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Operand highValue = GetIntA32(context, op.Rt2);
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Operand value = context.BitwiseOr(
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context.ZeroExtend32(OperandType.I64, lowValue),
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context.ShiftLeft(context.ZeroExtend32(OperandType.I64, highValue), Const(32)));
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context.Copy(vec, context.VectorInsert(vec, value, op.Vm & 1));
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}
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}
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public static void Vmovl(ArmEmitterContext context)
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{
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OpCode32SimdLong op = (OpCode32SimdLong)context.CurrOp;
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Operand res = context.VectorZero();
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, !op.U);
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if (op.Size == 2)
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{
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if (op.U)
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{
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me = context.ZeroExtend32(OperandType.I64, me);
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}
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else
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{
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me = context.SignExtend32(OperandType.I64, me);
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}
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}
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res = EmitVectorInsert(context, res, me, index, op.Size + 1);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void Vtbl(ArmEmitterContext context)
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{
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OpCode32SimdTbl op = (OpCode32SimdTbl)context.CurrOp;
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bool extension = op.Opc == 1;
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int length = op.Length + 1;
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if (Optimizations.UseSsse3)
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{
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Operand d = GetVecA32(op.Qd);
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Operand m = EmitMoveDoubleWordToSide(context, GetVecA32(op.Qm), op.Vm, 0);
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Operand res;
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Operand mask = X86GetAllElements(context, 0x0707070707070707L);
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// Fast path for single register table.
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{
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Operand n = EmitMoveDoubleWordToSide(context, GetVecA32(op.Qn), op.Vn, 0);
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Operand mMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, m, mask);
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mMask = context.AddIntrinsic(Intrinsic.X86Por, mMask, m);
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res = context.AddIntrinsic(Intrinsic.X86Pshufb, n, mMask);
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}
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for (int index = 1; index < length; index++)
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{
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int newVn = (op.Vn + index) & 0x1F;
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(int qn, int ind) = GetQuadwordAndSubindex(newVn, op.RegisterSize);
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Operand ni = EmitMoveDoubleWordToSide(context, GetVecA32(qn), newVn, 0);
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Operand idxMask = X86GetAllElements(context, 0x0808080808080808L * index);
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Operand mSubMask = context.AddIntrinsic(Intrinsic.X86Psubb, m, idxMask);
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Operand mMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, mSubMask, mask);
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mMask = context.AddIntrinsic(Intrinsic.X86Por, mMask, mSubMask);
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Operand res2 = context.AddIntrinsic(Intrinsic.X86Pshufb, ni, mMask);
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res = context.AddIntrinsic(Intrinsic.X86Por, res, res2);
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}
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if (extension)
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{
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Operand idxMask = X86GetAllElements(context, (0x0808080808080808L * length) - 0x0101010101010101L);
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Operand zeroMask = context.VectorZero();
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Operand mPosMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, m, idxMask);
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Operand mNegMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, zeroMask, m);
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Operand mMask = context.AddIntrinsic(Intrinsic.X86Por, mPosMask, mNegMask);
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Operand dMask = context.AddIntrinsic(Intrinsic.X86Pand, EmitMoveDoubleWordToSide(context, d, op.Vd, 0), mMask);
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res = context.AddIntrinsic(Intrinsic.X86Por, res, dMask);
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}
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res = EmitMoveDoubleWordToSide(context, res, 0, op.Vd);
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context.Copy(d, EmitDoubleWordInsert(context, d, res, op.Vd));
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}
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else
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{
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int elems = op.GetBytesCount() >> op.Size;
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(int Qx, int Ix)[] tableTuples = new (int, int)[length];
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for (int i = 0; i < length; i++)
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{
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tableTuples[i] = GetQuadwordAndSubindex(op.Vn + i, op.RegisterSize);
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}
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int byteLength = length * 8;
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Operand res = GetVecA32(op.Qd);
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Operand m = GetVecA32(op.Qm);
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for (int index = 0; index < elems; index++)
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{
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Operand selectedIndex = context.ZeroExtend8(OperandType.I32, context.VectorExtract8(m, index + op.Im));
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Operand inRange = context.ICompareLess(selectedIndex, Const(byteLength));
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Operand elemRes = default; // Note: This is I64 for ease of calculation.
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// TODO: Branching rather than conditional select.
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// Get indexed byte.
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// To simplify (ha) the il, we get bytes from every vector and use a nested conditional select to choose the right result.
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// This does have to extract `length` times for every element but certainly not as bad as it could be.
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// Which vector number is the index on.
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Operand vecIndex = context.ShiftRightUI(selectedIndex, Const(3));
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// What should we shift by to extract it.
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Operand subVecIndexShift = context.ShiftLeft(context.BitwiseAnd(selectedIndex, Const(7)), Const(3));
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for (int i = 0; i < length; i++)
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{
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(int qx, int ix) = tableTuples[i];
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// Get the whole vector, we'll get a byte out of it.
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Operand lookupResult;
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if (qx == op.Qd)
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{
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// Result contains the current state of the vector.
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lookupResult = context.VectorExtract(OperandType.I64, res, ix);
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}
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else
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{
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lookupResult = EmitVectorExtract32(context, qx, ix, 3, false); // I64
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}
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lookupResult = context.ShiftRightUI(lookupResult, subVecIndexShift); // Get the relevant byte from this vector.
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if (i == 0)
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{
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elemRes = lookupResult; // First result is always default.
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}
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else
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{
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Operand isThisElem = context.ICompareEqual(vecIndex, Const(i));
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elemRes = context.ConditionalSelect(isThisElem, lookupResult, elemRes);
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}
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}
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Operand fallback = (extension) ? context.ZeroExtend32(OperandType.I64, EmitVectorExtract32(context, op.Qd, index + op.Id, 0, false)) : Const(0L);
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res = EmitVectorInsert(context, res, context.ConditionalSelect(inRange, elemRes, fallback), index + op.Id, 0);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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}
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public static void Vtrn(ArmEmitterContext context)
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{
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OpCode32SimdCmpZ op = (OpCode32SimdCmpZ)context.CurrOp;
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if (Optimizations.UseSsse3)
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{
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EmitVectorShuffleOpSimd32(context, (m, d) =>
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{
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Operand mask = default;
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if (op.Size < 3)
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{
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long maskE0 = EvenMasks[op.Size];
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long maskE1 = OddMasks[op.Size];
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mask = X86GetScalar(context, maskE0);
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mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
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}
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if (op.Size < 3)
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{
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d = context.AddIntrinsic(Intrinsic.X86Pshufb, d, mask);
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m = context.AddIntrinsic(Intrinsic.X86Pshufb, m, mask);
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}
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Operand resD = context.AddIntrinsic(X86PunpcklInstruction[op.Size], d, m);
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Operand resM = context.AddIntrinsic(X86PunpckhInstruction[op.Size], d, m);
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return (resM, resD);
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});
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}
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else
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{
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int elems = op.GetBytesCount() >> op.Size;
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int pairs = elems >> 1;
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bool overlap = op.Qm == op.Qd;
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Operand resD = GetVecA32(op.Qd);
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Operand resM = GetVecA32(op.Qm);
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for (int index = 0; index < pairs; index++)
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{
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int pairIndex = index << 1;
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Operand d2 = EmitVectorExtract32(context, op.Qd, pairIndex + 1 + op.Id, op.Size, false);
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Operand m1 = EmitVectorExtract32(context, op.Qm, pairIndex + op.Im, op.Size, false);
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resD = EmitVectorInsert(context, resD, m1, pairIndex + 1 + op.Id, op.Size);
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if (overlap)
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{
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resM = resD;
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}
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resM = EmitVectorInsert(context, resM, d2, pairIndex + op.Im, op.Size);
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if (overlap)
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{
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resD = resM;
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}
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}
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context.Copy(GetVecA32(op.Qd), resD);
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if (!overlap)
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{
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context.Copy(GetVecA32(op.Qm), resM);
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}
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}
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}
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public static void Vzip(ArmEmitterContext context)
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{
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OpCode32SimdCmpZ op = (OpCode32SimdCmpZ)context.CurrOp;
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if (Optimizations.UseAdvSimd)
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{
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EmitVectorZipUzpOpSimd32(context, Intrinsic.Arm64Zip1V, Intrinsic.Arm64Zip2V);
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}
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else if (Optimizations.UseSse2)
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{
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EmitVectorShuffleOpSimd32(context, (m, d) =>
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{
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if (op.RegisterSize == RegisterSize.Simd128)
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{
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Operand resD = context.AddIntrinsic(X86PunpcklInstruction[op.Size], d, m);
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Operand resM = context.AddIntrinsic(X86PunpckhInstruction[op.Size], d, m);
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return (resM, resD);
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}
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else
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{
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Operand res = context.AddIntrinsic(X86PunpcklInstruction[op.Size], d, m);
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Operand resD = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, res, context.VectorZero());
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Operand resM = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, res, context.VectorZero());
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return (resM, resD);
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}
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});
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}
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else
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{
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int elems = op.GetBytesCount() >> op.Size;
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int pairs = elems >> 1;
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bool overlap = op.Qm == op.Qd;
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Operand resD = GetVecA32(op.Qd);
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Operand resM = GetVecA32(op.Qm);
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for (int index = 0; index < pairs; index++)
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{
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int pairIndex = index << 1;
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Operand dRowD = EmitVectorExtract32(context, op.Qd, index + op.Id, op.Size, false);
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Operand mRowD = EmitVectorExtract32(context, op.Qm, index + op.Im, op.Size, false);
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Operand dRowM = EmitVectorExtract32(context, op.Qd, index + op.Id + pairs, op.Size, false);
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Operand mRowM = EmitVectorExtract32(context, op.Qm, index + op.Im + pairs, op.Size, false);
|
|
|
|
resD = EmitVectorInsert(context, resD, dRowD, pairIndex + op.Id, op.Size);
|
|
resD = EmitVectorInsert(context, resD, mRowD, pairIndex + 1 + op.Id, op.Size);
|
|
|
|
if (overlap)
|
|
{
|
|
resM = resD;
|
|
}
|
|
|
|
resM = EmitVectorInsert(context, resM, dRowM, pairIndex + op.Im, op.Size);
|
|
resM = EmitVectorInsert(context, resM, mRowM, pairIndex + 1 + op.Im, op.Size);
|
|
|
|
if (overlap)
|
|
{
|
|
resD = resM;
|
|
}
|
|
}
|
|
|
|
context.Copy(GetVecA32(op.Qd), resD);
|
|
if (!overlap)
|
|
{
|
|
context.Copy(GetVecA32(op.Qm), resM);
|
|
}
|
|
}
|
|
}
|
|
|
|
public static void Vuzp(ArmEmitterContext context)
|
|
{
|
|
OpCode32SimdCmpZ op = (OpCode32SimdCmpZ)context.CurrOp;
|
|
|
|
if (Optimizations.UseAdvSimd)
|
|
{
|
|
EmitVectorZipUzpOpSimd32(context, Intrinsic.Arm64Uzp1V, Intrinsic.Arm64Uzp2V);
|
|
}
|
|
else if (Optimizations.UseSsse3)
|
|
{
|
|
EmitVectorShuffleOpSimd32(context, (m, d) =>
|
|
{
|
|
if (op.RegisterSize == RegisterSize.Simd128)
|
|
{
|
|
Operand mask = default;
|
|
|
|
if (op.Size < 3)
|
|
{
|
|
long maskE0 = EvenMasks[op.Size];
|
|
long maskE1 = OddMasks[op.Size];
|
|
|
|
mask = X86GetScalar(context, maskE0);
|
|
mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
|
|
|
|
d = context.AddIntrinsic(Intrinsic.X86Pshufb, d, mask);
|
|
m = context.AddIntrinsic(Intrinsic.X86Pshufb, m, mask);
|
|
}
|
|
|
|
Operand resD = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, d, m);
|
|
Operand resM = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, d, m);
|
|
|
|
return (resM, resD);
|
|
}
|
|
else
|
|
{
|
|
Intrinsic punpcklInst = X86PunpcklInstruction[op.Size];
|
|
|
|
Operand res = context.AddIntrinsic(punpcklInst, d, m);
|
|
|
|
if (op.Size < 2)
|
|
{
|
|
long maskE0 = _masksE0_Uzp[op.Size];
|
|
long maskE1 = _masksE1_Uzp[op.Size];
|
|
|
|
Operand mask = X86GetScalar(context, maskE0);
|
|
|
|
mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
|
|
|
|
res = context.AddIntrinsic(Intrinsic.X86Pshufb, res, mask);
|
|
}
|
|
|
|
Operand resD = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, res, context.VectorZero());
|
|
Operand resM = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, res, context.VectorZero());
|
|
|
|
return (resM, resD);
|
|
}
|
|
});
|
|
}
|
|
else
|
|
{
|
|
int elems = op.GetBytesCount() >> op.Size;
|
|
int pairs = elems >> 1;
|
|
|
|
bool overlap = op.Qm == op.Qd;
|
|
|
|
Operand resD = GetVecA32(op.Qd);
|
|
Operand resM = GetVecA32(op.Qm);
|
|
|
|
for (int index = 0; index < elems; index++)
|
|
{
|
|
Operand dIns, mIns;
|
|
if (index >= pairs)
|
|
{
|
|
int pairIndex = index - pairs;
|
|
dIns = EmitVectorExtract32(context, op.Qm, (pairIndex << 1) + op.Im, op.Size, false);
|
|
mIns = EmitVectorExtract32(context, op.Qm, ((pairIndex << 1) | 1) + op.Im, op.Size, false);
|
|
}
|
|
else
|
|
{
|
|
dIns = EmitVectorExtract32(context, op.Qd, (index << 1) + op.Id, op.Size, false);
|
|
mIns = EmitVectorExtract32(context, op.Qd, ((index << 1) | 1) + op.Id, op.Size, false);
|
|
}
|
|
|
|
resD = EmitVectorInsert(context, resD, dIns, index + op.Id, op.Size);
|
|
|
|
if (overlap)
|
|
{
|
|
resM = resD;
|
|
}
|
|
|
|
resM = EmitVectorInsert(context, resM, mIns, index + op.Im, op.Size);
|
|
|
|
if (overlap)
|
|
{
|
|
resD = resM;
|
|
}
|
|
}
|
|
|
|
context.Copy(GetVecA32(op.Qd), resD);
|
|
if (!overlap)
|
|
{
|
|
context.Copy(GetVecA32(op.Qm), resM);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void EmitVectorZipUzpOpSimd32(ArmEmitterContext context, Intrinsic inst1, Intrinsic inst2)
|
|
{
|
|
OpCode32SimdCmpZ op = (OpCode32SimdCmpZ)context.CurrOp;
|
|
|
|
bool overlap = op.Qm == op.Qd;
|
|
|
|
Operand d = GetVecA32(op.Qd);
|
|
Operand m = GetVecA32(op.Qm);
|
|
|
|
Operand dPart = d;
|
|
Operand mPart = m;
|
|
|
|
if (!op.Q) // Register swap: move relevant doubleword to destination side.
|
|
{
|
|
dPart = InstEmitSimdHelper32Arm64.EmitMoveDoubleWordToSide(context, d, op.Vd, 0);
|
|
mPart = InstEmitSimdHelper32Arm64.EmitMoveDoubleWordToSide(context, m, op.Vm, 0);
|
|
}
|
|
|
|
Intrinsic vSize = op.Q ? Intrinsic.Arm64V128 : Intrinsic.Arm64V64;
|
|
|
|
vSize |= (Intrinsic)(op.Size << (int)Intrinsic.Arm64VSizeShift);
|
|
|
|
Operand resD = context.AddIntrinsic(inst1 | vSize, dPart, mPart);
|
|
Operand resM = context.AddIntrinsic(inst2 | vSize, dPart, mPart);
|
|
|
|
if (!op.Q) // Register insert.
|
|
{
|
|
resD = context.AddIntrinsic(Intrinsic.Arm64InsVe | Intrinsic.Arm64VDWord, d, Const(op.Vd & 1), resD, Const(0));
|
|
|
|
if (overlap)
|
|
{
|
|
resD = context.AddIntrinsic(Intrinsic.Arm64InsVe | Intrinsic.Arm64VDWord, resD, Const(op.Vm & 1), resM, Const(0));
|
|
}
|
|
else
|
|
{
|
|
resM = context.AddIntrinsic(Intrinsic.Arm64InsVe | Intrinsic.Arm64VDWord, m, Const(op.Vm & 1), resM, Const(0));
|
|
}
|
|
}
|
|
|
|
context.Copy(d, resD);
|
|
if (!overlap)
|
|
{
|
|
context.Copy(m, resM);
|
|
}
|
|
}
|
|
|
|
private static void EmitVectorShuffleOpSimd32(ArmEmitterContext context, Func<Operand, Operand, (Operand, Operand)> shuffleFunc)
|
|
{
|
|
OpCode32Simd op = (OpCode32Simd)context.CurrOp;
|
|
|
|
Operand m = GetVecA32(op.Qm);
|
|
Operand d = GetVecA32(op.Qd);
|
|
Operand initialM = m;
|
|
Operand initialD = d;
|
|
|
|
if (!op.Q) // Register swap: move relevant doubleword to side 0, for consistency.
|
|
{
|
|
m = EmitMoveDoubleWordToSide(context, m, op.Vm, 0);
|
|
d = EmitMoveDoubleWordToSide(context, d, op.Vd, 0);
|
|
}
|
|
|
|
(Operand resM, Operand resD) = shuffleFunc(m, d);
|
|
|
|
bool overlap = op.Qm == op.Qd;
|
|
|
|
if (!op.Q) // Register insert.
|
|
{
|
|
resM = EmitDoubleWordInsert(context, initialM, EmitMoveDoubleWordToSide(context, resM, 0, op.Vm), op.Vm);
|
|
resD = EmitDoubleWordInsert(context, overlap ? resM : initialD, EmitMoveDoubleWordToSide(context, resD, 0, op.Vd), op.Vd);
|
|
}
|
|
|
|
if (!overlap)
|
|
{
|
|
context.Copy(initialM, resM);
|
|
}
|
|
|
|
context.Copy(initialD, resD);
|
|
}
|
|
}
|
|
}
|