Ryujinx/ChocolArm64/Instructions/InstEmitSimdMove.cs

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using ChocolArm64.Decoders;
using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection.Emit;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
using static ChocolArm64.Instructions.InstEmitSimdHelper;
namespace ChocolArm64.Instructions
{
static partial class InstEmit
{
#region "Masks"
private static readonly long[] _masksE0_TrnUzpXtn = new long[]
{
14L << 56 | 12L << 48 | 10L << 40 | 08L << 32 | 06L << 24 | 04L << 16 | 02L << 8 | 00L << 0,
13L << 56 | 12L << 48 | 09L << 40 | 08L << 32 | 05L << 24 | 04L << 16 | 01L << 8 | 00L << 0,
11L << 56 | 10L << 48 | 09L << 40 | 08L << 32 | 03L << 24 | 02L << 16 | 01L << 8 | 00L << 0
};
private static readonly long[] _masksE1_TrnUzp = new long[]
{
15L << 56 | 13L << 48 | 11L << 40 | 09L << 32 | 07L << 24 | 05L << 16 | 03L << 8 | 01L << 0,
15L << 56 | 14L << 48 | 11L << 40 | 10L << 32 | 07L << 24 | 06L << 16 | 03L << 8 | 02L << 0,
15L << 56 | 14L << 48 | 13L << 40 | 12L << 32 | 07L << 24 | 06L << 16 | 05L << 8 | 04L << 0
};
private static readonly long[] _masksE0_Uzp = new long[]
{
13L << 56 | 09L << 48 | 05L << 40 | 01L << 32 | 12L << 24 | 08L << 16 | 04L << 8 | 00L << 0,
11L << 56 | 10L << 48 | 03L << 40 | 02L << 32 | 09L << 24 | 08L << 16 | 01L << 8 | 00L << 0
};
private static readonly long[] _masksE1_Uzp = new long[]
{
15L << 56 | 11L << 48 | 07L << 40 | 03L << 32 | 14L << 24 | 10L << 16 | 06L << 8 | 02L << 0,
15L << 56 | 14L << 48 | 07L << 40 | 06L << 32 | 13L << 24 | 12L << 16 | 05L << 8 | 04L << 0
};
#endregion
public static void Dup_Gp(ILEmitterCtx context)
{
OpCodeSimdIns64 op = (OpCodeSimdIns64)context.CurrOp;
if (Optimizations.UseSse2)
{
Type[] typesSav = new Type[] { UIntTypesPerSizeLog2[op.Size] };
context.EmitLdintzr(op.Rn);
switch (op.Size)
{
case 0: context.Emit(OpCodes.Conv_U1); break;
case 1: context.Emit(OpCodes.Conv_U2); break;
case 2: context.Emit(OpCodes.Conv_U4); break;
}
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitStvec(op.Rd);
}
else
{
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
context.EmitLdintzr(op.Rn);
EmitVectorInsert(context, op.Rd, index, op.Size);
}
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Dup_S(ILEmitterCtx context)
{
OpCodeSimdIns64 op = (OpCodeSimdIns64)context.CurrOp;
EmitVectorExtractZx(context, op.Rn, op.DstIndex, op.Size);
EmitScalarSet(context, op.Rd, op.Size);
}
public static void Dup_V(ILEmitterCtx context)
{
OpCodeSimdIns64 op = (OpCodeSimdIns64)context.CurrOp;
if (Optimizations.UseSse2)
{
Type[] typesSav = new Type[] { UIntTypesPerSizeLog2[op.Size] };
EmitVectorExtractZx(context, op.Rn, op.DstIndex, op.Size);
switch (op.Size)
{
case 0: context.Emit(OpCodes.Conv_U1); break;
case 1: context.Emit(OpCodes.Conv_U2); break;
case 2: context.Emit(OpCodes.Conv_U4); break;
}
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitStvec(op.Rd);
}
else
{
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rn, op.DstIndex, op.Size);
EmitVectorInsert(context, op.Rd, index, op.Size);
}
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Ext_V(ILEmitterCtx context)
{
OpCodeSimdExt64 op = (OpCodeSimdExt64)context.CurrOp;
if (Optimizations.UseSse2)
{
Type[] typesShs = new Type[] { typeof(Vector128<byte>), typeof(byte) };
Type[] typesOr = new Type[] { typeof(Vector128<byte>), typeof(Vector128<byte>) };
context.EmitLdvec(op.Rn);
if (op.RegisterSize == RegisterSize.Simd64)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.MoveLowToHigh)));
}
context.EmitLdc_I4(op.Imm4);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ShiftRightLogical128BitLane), typesShs));
context.EmitLdvec(op.Rm);
context.EmitLdc_I4((op.RegisterSize == RegisterSize.Simd64 ? 8 : 16) - op.Imm4);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ShiftLeftLogical128BitLane), typesShs));
if (op.RegisterSize == RegisterSize.Simd64)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.MoveLowToHigh)));
}
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Or), typesOr));
context.EmitStvec(op.Rd);
}
else
{
int bytes = op.GetBitsCount() >> 3;
int position = op.Imm4;
for (int index = 0; index < bytes; index++)
{
int reg = op.Imm4 + index < bytes ? op.Rn : op.Rm;
if (position == bytes)
{
position = 0;
}
EmitVectorExtractZx(context, reg, position++, 0);
EmitVectorInsertTmp(context, index, 0);
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
}
public static void Fcsel_S(ILEmitterCtx context)
{
OpCodeSimdFcond64 op = (OpCodeSimdFcond64)context.CurrOp;
ILLabel lblTrue = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.EmitCondBranch(lblTrue, op.Cond);
EmitVectorExtractF(context, op.Rm, 0, op.Size);
context.Emit(OpCodes.Br_S, lblEnd);
context.MarkLabel(lblTrue);
EmitVectorExtractF(context, op.Rn, 0, op.Size);
context.MarkLabel(lblEnd);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Fmov_Ftoi(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
EmitVectorExtractZx(context, op.Rn, 0, 3);
EmitIntZeroUpperIfNeeded(context);
context.EmitStintzr(op.Rd);
}
public static void Fmov_Ftoi1(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
EmitVectorExtractZx(context, op.Rn, 1, 3);
EmitIntZeroUpperIfNeeded(context);
context.EmitStintzr(op.Rd);
}
public static void Fmov_Itof(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
EmitIntZeroUpperIfNeeded(context);
EmitScalarSet(context, op.Rd, 3);
}
public static void Fmov_Itof1(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
EmitIntZeroUpperIfNeeded(context);
EmitVectorInsert(context, op.Rd, 1, 3);
}
public static void Fmov_S(ILEmitterCtx context)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
EmitVectorExtractF(context, op.Rn, 0, op.Size);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Fmov_Si(ILEmitterCtx context)
{
OpCodeSimdFmov64 op = (OpCodeSimdFmov64)context.CurrOp;
context.EmitLdc_I8(op.Imm);
EmitScalarSet(context, op.Rd, op.Size + 2);
}
public static void Fmov_V(ILEmitterCtx context)
{
OpCodeSimdImm64 op = (OpCodeSimdImm64)context.CurrOp;
int elems = op.RegisterSize == RegisterSize.Simd128 ? 4 : 2;
for (int index = 0; index < (elems >> op.Size); index++)
{
context.EmitLdc_I8(op.Imm);
EmitVectorInsert(context, op.Rd, index, op.Size + 2);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Ins_Gp(ILEmitterCtx context)
{
OpCodeSimdIns64 op = (OpCodeSimdIns64)context.CurrOp;
context.EmitLdintzr(op.Rn);
EmitVectorInsert(context, op.Rd, op.DstIndex, op.Size);
}
public static void Ins_V(ILEmitterCtx context)
{
OpCodeSimdIns64 op = (OpCodeSimdIns64)context.CurrOp;
EmitVectorExtractZx(context, op.Rn, op.SrcIndex, op.Size);
EmitVectorInsert(context, op.Rd, op.DstIndex, op.Size);
}
public static void Movi_V(ILEmitterCtx context)
{
if (Optimizations.UseSse2)
{
EmitMoviMvni(context, not: false);
}
else
{
EmitVectorImmUnaryOp(context, () => { });
}
}
public static void Mvni_V(ILEmitterCtx context)
{
if (Optimizations.UseSse2)
{
EmitMoviMvni(context, not: true);
}
else
{
EmitVectorImmUnaryOp(context, () => context.Emit(OpCodes.Not));
}
}
public static void Smov_S(ILEmitterCtx context)
{
OpCodeSimdIns64 op = (OpCodeSimdIns64)context.CurrOp;
EmitVectorExtractSx(context, op.Rn, op.DstIndex, op.Size);
EmitIntZeroUpperIfNeeded(context);
context.EmitStintzr(op.Rd);
}
public static void Tbl_V(ILEmitterCtx context)
{
OpCodeSimdTbl64 op = (OpCodeSimdTbl64)context.CurrOp;
if (Optimizations.UseSsse3)
{
Type[] typesCmpSflSub = new Type[] { typeof(Vector128<sbyte>), typeof(Vector128<sbyte>) };
Type[] typesOr = new Type[] { typeof(Vector128<long>), typeof(Vector128<long>) };
Type[] typesSav = new Type[] { typeof(long) };
context.EmitLdvec(op.Rn);
context.EmitLdvec(op.Rm);
context.EmitLdc_I8(0x0F0F0F0F0F0F0F0FL);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitStvectmp2();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareGreaterThan), typesCmpSflSub));
context.EmitLdvec(op.Rm);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Or), typesOr));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), typesCmpSflSub));
for (int index = 1; index < op.Size; index++)
{
context.EmitLdvec((op.Rn + index) & 0x1F);
context.EmitLdvec(op.Rm);
context.EmitLdc_I8(0x1010101010101010L * index);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Subtract), typesCmpSflSub));
context.EmitStvectmp();
context.EmitLdvectmp();
context.EmitLdvectmp2();
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareGreaterThan), typesCmpSflSub));
context.EmitLdvectmp();
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Or), typesOr));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), typesCmpSflSub));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Or), typesOr));
}
context.EmitStvec(op.Rd);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
context.EmitLdvec(op.Rm);
for (int index = 0; index < op.Size; index++)
{
context.EmitLdvec((op.Rn + index) & 0x1F);
}
switch (op.Size)
{
case 1: VectorHelper.EmitCall(context,
nameof(VectorHelper.Tbl1_V64),
nameof(VectorHelper.Tbl1_V128)); break;
case 2: VectorHelper.EmitCall(context,
nameof(VectorHelper.Tbl2_V64),
nameof(VectorHelper.Tbl2_V128)); break;
case 3: VectorHelper.EmitCall(context,
nameof(VectorHelper.Tbl3_V64),
nameof(VectorHelper.Tbl3_V128)); break;
case 4: VectorHelper.EmitCall(context,
nameof(VectorHelper.Tbl4_V64),
nameof(VectorHelper.Tbl4_V128)); break;
default: throw new InvalidOperationException();
}
context.EmitStvec(op.Rd);
}
}
public static void Trn1_V(ILEmitterCtx context)
{
EmitVectorTranspose(context, part: 0);
}
public static void Trn2_V(ILEmitterCtx context)
{
EmitVectorTranspose(context, part: 1);
}
public static void Umov_S(ILEmitterCtx context)
{
OpCodeSimdIns64 op = (OpCodeSimdIns64)context.CurrOp;
EmitVectorExtractZx(context, op.Rn, op.DstIndex, op.Size);
context.EmitStintzr(op.Rd);
}
public static void Uzp1_V(ILEmitterCtx context)
{
EmitVectorUnzip(context, part: 0);
}
public static void Uzp2_V(ILEmitterCtx context)
{
EmitVectorUnzip(context, part: 1);
}
public static void Xtn_V(ILEmitterCtx context)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
if (Optimizations.UseSsse3)
{
Type[] typesSve = new Type[] { typeof(long), typeof(long) };
string nameMov = op.RegisterSize == RegisterSize.Simd128
? nameof(Sse.MoveLowToHigh)
: nameof(Sse.MoveHighToLow);
context.EmitLdvec(op.Rd);
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.MoveLowToHigh)));
context.EmitLdvec(op.Rn); // value
context.EmitLdc_I8(_masksE0_TrnUzpXtn[op.Size]); // mask
context.Emit(OpCodes.Dup); // mask
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), GetTypesSflUpk(0)));
context.EmitCall(typeof(Sse).GetMethod(nameMov));
context.EmitStvec(op.Rd);
}
else
{
int elems = 8 >> op.Size;
int part = op.RegisterSize == RegisterSize.Simd128 ? elems : 0;
if (part != 0)
{
context.EmitLdvec(op.Rd);
context.EmitStvectmp();
}
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rn, index, op.Size + 1);
EmitVectorInsertTmp(context, part + index, op.Size);
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
if (part == 0)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
}
public static void Zip1_V(ILEmitterCtx context)
{
EmitVectorZip(context, part: 0);
}
public static void Zip2_V(ILEmitterCtx context)
{
EmitVectorZip(context, part: 1);
}
private static void EmitIntZeroUpperIfNeeded(ILEmitterCtx context)
{
if (context.CurrOp.RegisterSize == RegisterSize.Int32 ||
context.CurrOp.RegisterSize == RegisterSize.Simd64)
{
context.Emit(OpCodes.Conv_U4);
context.Emit(OpCodes.Conv_U8);
}
}
private static void EmitMoviMvni(ILEmitterCtx context, bool not)
{
OpCodeSimdImm64 op = (OpCodeSimdImm64)context.CurrOp;
Type[] typesSav = new Type[] { UIntTypesPerSizeLog2[op.Size] };
long imm = op.Imm;
if (not)
{
imm = ~imm;
}
if (op.Size < 3)
{
context.EmitLdc_I4((int)imm);
}
else
{
context.EmitLdc_I8(imm);
}
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitStvec(op.Rd);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
private static void EmitVectorTranspose(ILEmitterCtx context, int part)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
if (Optimizations.UseSsse3)
{
Type[] typesSve = new Type[] { typeof(long), typeof(long) };
string nameUpk = part == 0
? nameof(Sse2.UnpackLow)
: nameof(Sse2.UnpackHigh);
context.EmitLdvec(op.Rn); // value
if (op.Size < 3)
{
context.EmitLdc_I8(_masksE1_TrnUzp [op.Size]); // maskE1
context.EmitLdc_I8(_masksE0_TrnUzpXtn[op.Size]); // maskE0
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), GetTypesSflUpk(0)));
}
context.EmitLdvec(op.Rm); // value
if (op.Size < 3)
{
context.EmitLdc_I8(_masksE1_TrnUzp [op.Size]); // maskE1
context.EmitLdc_I8(_masksE0_TrnUzpXtn[op.Size]); // maskE0
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), GetTypesSflUpk(0)));
}
context.EmitCall(typeof(Sse2).GetMethod(nameUpk, GetTypesSflUpk(op.Size)));
context.EmitStvec(op.Rd);
}
else
{
int words = op.GetBitsCount() >> 4;
int pairs = words >> op.Size;
for (int index = 0; index < pairs; index++)
{
int idx = index << 1;
EmitVectorExtractZx(context, op.Rn, idx + part, op.Size);
EmitVectorExtractZx(context, op.Rm, idx + part, op.Size);
EmitVectorInsertTmp(context, idx + 1, op.Size);
EmitVectorInsertTmp(context, idx, op.Size);
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
private static void EmitVectorUnzip(ILEmitterCtx context, int part)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
if (Optimizations.UseSsse3)
{
Type[] typesSve = new Type[] { typeof(long), typeof(long) };
string nameUpk = part == 0
? nameof(Sse2.UnpackLow)
: nameof(Sse2.UnpackHigh);
if (op.RegisterSize == RegisterSize.Simd128)
{
context.EmitLdvec(op.Rn); // value
if (op.Size < 3)
{
context.EmitLdc_I8(_masksE1_TrnUzp [op.Size]); // maskE1
context.EmitLdc_I8(_masksE0_TrnUzpXtn[op.Size]); // maskE0
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), GetTypesSflUpk(0)));
}
context.EmitLdvec(op.Rm); // value
if (op.Size < 3)
{
context.EmitLdc_I8(_masksE1_TrnUzp [op.Size]); // maskE1
context.EmitLdc_I8(_masksE0_TrnUzpXtn[op.Size]); // maskE0
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), GetTypesSflUpk(0)));
}
context.EmitCall(typeof(Sse2).GetMethod(nameUpk, GetTypesSflUpk(3)));
context.EmitStvec(op.Rd);
}
else
{
context.EmitLdvec(op.Rn);
context.EmitLdvec(op.Rm);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.UnpackLow), GetTypesSflUpk(op.Size))); // value
if (op.Size < 2)
{
context.EmitLdc_I8(_masksE1_Uzp[op.Size]); // maskE1
context.EmitLdc_I8(_masksE0_Uzp[op.Size]); // maskE0
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), GetTypesSflUpk(0)));
}
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
context.EmitCall(typeof(Sse2).GetMethod(nameUpk, GetTypesSflUpk(3)));
context.EmitStvec(op.Rd);
}
}
else
{
int words = op.GetBitsCount() >> 4;
int pairs = words >> op.Size;
for (int index = 0; index < pairs; index++)
{
int idx = index << 1;
EmitVectorExtractZx(context, op.Rn, idx + part, op.Size);
EmitVectorExtractZx(context, op.Rm, idx + part, op.Size);
EmitVectorInsertTmp(context, pairs + index, op.Size);
EmitVectorInsertTmp(context, index, op.Size);
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
}
private static void EmitVectorZip(ILEmitterCtx context, int part)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
if (Optimizations.UseSse2)
{
string nameUpk = part == 0
? nameof(Sse2.UnpackLow)
: nameof(Sse2.UnpackHigh);
context.EmitLdvec(op.Rn);
context.EmitLdvec(op.Rm);
if (op.RegisterSize == RegisterSize.Simd128)
{
context.EmitCall(typeof(Sse2).GetMethod(nameUpk, GetTypesSflUpk(op.Size)));
}
else
{
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.UnpackLow), GetTypesSflUpk(op.Size)));
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
context.EmitCall(typeof(Sse2).GetMethod(nameUpk, GetTypesSflUpk(3)));
}
context.EmitStvec(op.Rd);
}
else
{
int words = op.GetBitsCount() >> 4;
int pairs = words >> op.Size;
int Base = part != 0 ? pairs : 0;
for (int index = 0; index < pairs; index++)
{
int idx = index << 1;
EmitVectorExtractZx(context, op.Rn, Base + index, op.Size);
EmitVectorExtractZx(context, op.Rm, Base + index, op.Size);
EmitVectorInsertTmp(context, idx + 1, op.Size);
EmitVectorInsertTmp(context, idx, op.Size);
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
}
private static Type[] GetTypesSflUpk(int size)
{
return new Type[] { VectorIntTypesPerSizeLog2[size], VectorIntTypesPerSizeLog2[size] };
}
}
}