Ryujinx/ChocolArm64/Instruction/AInstEmitSimdHelper.cs

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using ChocolArm64.Decoder;
using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.CompilerServices;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
namespace ChocolArm64.Instruction
{
static class AInstEmitSimdHelper
{
[Flags]
public enum OperFlags
{
Rd = 1 << 0,
Rn = 1 << 1,
Rm = 1 << 2,
Ra = 1 << 3,
RnRm = Rn | Rm,
RdRn = Rd | Rn,
RaRnRm = Ra | Rn | Rm,
RdRnRm = Rd | Rn | Rm
}
public static int GetImmShl(AOpCodeSimdShImm Op)
{
return Op.Imm - (8 << Op.Size);
}
public static int GetImmShr(AOpCodeSimdShImm Op)
{
return (8 << (Op.Size + 1)) - Op.Imm;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void EmitSse2Call(AILEmitterCtx Context, string Name)
{
EmitSseCall(Context, Name, typeof(Sse2));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void EmitSse41Call(AILEmitterCtx Context, string Name)
{
EmitSseCall(Context, Name, typeof(Sse41));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void EmitSse42Call(AILEmitterCtx Context, string Name)
{
EmitSseCall(Context, Name, typeof(Sse42));
}
private static void EmitSseCall(AILEmitterCtx Context, string Name, Type Type)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
void Ldvec(int Reg)
{
Context.EmitLdvec(Reg);
switch (Op.Size)
{
case 0: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorSingleToSByte)); break;
case 1: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorSingleToInt16)); break;
case 2: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorSingleToInt32)); break;
case 3: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorSingleToInt64)); break;
}
}
Ldvec(Op.Rn);
Type BaseType = null;
switch (Op.Size)
{
case 0: BaseType = typeof(Vector128<sbyte>); break;
case 1: BaseType = typeof(Vector128<short>); break;
case 2: BaseType = typeof(Vector128<int>); break;
case 3: BaseType = typeof(Vector128<long>); break;
}
if (Op is AOpCodeSimdReg BinOp)
{
Ldvec(BinOp.Rm);
Context.EmitCall(Type.GetMethod(Name, new Type[] { BaseType, BaseType }));
}
else
{
Context.EmitCall(Type.GetMethod(Name, new Type[] { BaseType }));
}
switch (Op.Size)
{
case 0: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorSByteToSingle)); break;
case 1: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInt16ToSingle)); break;
case 2: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInt32ToSingle)); break;
case 3: AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInt64ToSingle)); break;
}
Context.EmitStvec(Op.Rd);
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitSseOrSse2CallF(AILEmitterCtx Context, string Name)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
void Ldvec(int Reg)
{
Context.EmitLdvec(Reg);
if (SizeF == 1)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorSingleToDouble));
}
}
Ldvec(Op.Rn);
Type Type;
Type BaseType;
if (SizeF == 0)
{
Type = typeof(Sse);
BaseType = typeof(Vector128<float>);
}
else /* if (SizeF == 1) */
{
Type = typeof(Sse2);
BaseType = typeof(Vector128<double>);
}
if (Op is AOpCodeSimdReg BinOp)
{
Ldvec(BinOp.Rm);
Context.EmitCall(Type.GetMethod(Name, new Type[] { BaseType, BaseType }));
}
else
{
Context.EmitCall(Type.GetMethod(Name, new Type[] { BaseType }));
}
if (SizeF == 1)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorDoubleToSingle));
}
Context.EmitStvec(Op.Rd);
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitUnaryMathCall(AILEmitterCtx Context, string Name)
{
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
MethodInfo MthdInfo;
if (SizeF == 0)
{
MthdInfo = typeof(MathF).GetMethod(Name, new Type[] { typeof(float) });
}
else /* if (SizeF == 1) */
{
MthdInfo = typeof(Math).GetMethod(Name, new Type[] { typeof(double) });
}
Context.EmitCall(MthdInfo);
}
public static void EmitBinaryMathCall(AILEmitterCtx Context, string Name)
{
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
MethodInfo MthdInfo;
if (SizeF == 0)
{
MthdInfo = typeof(MathF).GetMethod(Name, new Type[] { typeof(float), typeof(float) });
}
else /* if (SizeF == 1) */
{
MthdInfo = typeof(Math).GetMethod(Name, new Type[] { typeof(double), typeof(double) });
}
Context.EmitCall(MthdInfo);
}
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public static void EmitRoundMathCall(AILEmitterCtx Context, MidpointRounding RoundMode)
{
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
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Context.EmitLdc_I4((int)RoundMode);
MethodInfo MthdInfo;
Type[] Types = new Type[] { null, typeof(MidpointRounding) };
Types[0] = SizeF == 0
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? typeof(float)
: typeof(double);
if (SizeF == 0)
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{
MthdInfo = typeof(MathF).GetMethod(nameof(MathF.Round), Types);
}
else /* if (SizeF == 1) */
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{
MthdInfo = typeof(Math).GetMethod(nameof(Math.Round), Types);
}
Context.EmitCall(MthdInfo);
}
public static void EmitUnarySoftFloatCall(AILEmitterCtx Context, string Name)
{
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
MethodInfo MthdInfo;
if (SizeF == 0)
{
MthdInfo = typeof(ASoftFloat).GetMethod(Name, new Type[] { typeof(float) });
}
else /* if (SizeF == 1) */
{
MthdInfo = typeof(ASoftFloat).GetMethod(Name, new Type[] { typeof(double) });
}
Context.EmitCall(MthdInfo);
}
public static void EmitBinarySoftFloatCall(AILEmitterCtx Context, string Name)
{
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
MethodInfo MthdInfo;
if (SizeF == 0)
{
MthdInfo = typeof(ASoftFloat).GetMethod(Name, new Type[] { typeof(float), typeof(float) });
}
else /* if (SizeF == 1) */
{
MthdInfo = typeof(ASoftFloat).GetMethod(Name, new Type[] { typeof(double), typeof(double) });
}
Context.EmitCall(MthdInfo);
}
public static void EmitScalarBinaryOpByElemF(AILEmitterCtx Context, Action Emit)
{
AOpCodeSimdRegElemF Op = (AOpCodeSimdRegElemF)Context.CurrOp;
EmitScalarOpByElemF(Context, Emit, Op.Index, Ternary: false);
}
public static void EmitScalarTernaryOpByElemF(AILEmitterCtx Context, Action Emit)
{
AOpCodeSimdRegElemF Op = (AOpCodeSimdRegElemF)Context.CurrOp;
EmitScalarOpByElemF(Context, Emit, Op.Index, Ternary: true);
}
public static void EmitScalarOpByElemF(AILEmitterCtx Context, Action Emit, int Elem, bool Ternary)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int SizeF = Op.Size & 1;
if (Ternary)
{
EmitVectorExtractF(Context, Op.Rd, 0, SizeF);
}
EmitVectorExtractF(Context, Op.Rn, 0, SizeF);
EmitVectorExtractF(Context, Op.Rm, Elem, SizeF);
Emit();
EmitScalarSetF(Context, Op.Rd, SizeF);
}
public static void EmitScalarUnaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitScalarOp(Context, Emit, OperFlags.Rn, true);
}
public static void EmitScalarBinaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitScalarOp(Context, Emit, OperFlags.RnRm, true);
}
public static void EmitScalarUnaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitScalarOp(Context, Emit, OperFlags.Rn, false);
}
public static void EmitScalarBinaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitScalarOp(Context, Emit, OperFlags.RnRm, false);
}
public static void EmitScalarTernaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitScalarOp(Context, Emit, OperFlags.RdRnRm, false);
}
public static void EmitScalarOp(AILEmitterCtx Context, Action Emit, OperFlags Opers, bool Signed)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
bool Rd = (Opers & OperFlags.Rd) != 0;
bool Rn = (Opers & OperFlags.Rn) != 0;
bool Rm = (Opers & OperFlags.Rm) != 0;
if (Rd)
{
EmitVectorExtract(Context, Op.Rd, 0, Op.Size, Signed);
}
if (Rn)
{
EmitVectorExtract(Context, Op.Rn, 0, Op.Size, Signed);
}
if (Rm)
{
EmitVectorExtract(Context, ((AOpCodeSimdReg)Op).Rm, 0, Op.Size, Signed);
}
Emit();
EmitScalarSet(Context, Op.Rd, Op.Size);
}
public static void EmitScalarUnaryOpF(AILEmitterCtx Context, Action Emit)
{
EmitScalarOpF(Context, Emit, OperFlags.Rn);
}
public static void EmitScalarBinaryOpF(AILEmitterCtx Context, Action Emit)
{
EmitScalarOpF(Context, Emit, OperFlags.RnRm);
}
public static void EmitScalarTernaryRaOpF(AILEmitterCtx Context, Action Emit)
{
EmitScalarOpF(Context, Emit, OperFlags.RaRnRm);
}
public static void EmitScalarOpF(AILEmitterCtx Context, Action Emit, OperFlags Opers)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
bool Ra = (Opers & OperFlags.Ra) != 0;
bool Rn = (Opers & OperFlags.Rn) != 0;
bool Rm = (Opers & OperFlags.Rm) != 0;
if (Ra)
{
EmitVectorExtractF(Context, ((AOpCodeSimdReg)Op).Ra, 0, SizeF);
}
if (Rn)
{
EmitVectorExtractF(Context, Op.Rn, 0, SizeF);
}
if (Rm)
{
EmitVectorExtractF(Context, ((AOpCodeSimdReg)Op).Rm, 0, SizeF);
}
Emit();
EmitScalarSetF(Context, Op.Rd, SizeF);
}
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public static void EmitVectorUnaryOpF(AILEmitterCtx Context, Action Emit)
{
EmitVectorOpF(Context, Emit, OperFlags.Rn);
}
public static void EmitVectorBinaryOpF(AILEmitterCtx Context, Action Emit)
{
EmitVectorOpF(Context, Emit, OperFlags.RnRm);
}
public static void EmitVectorTernaryOpF(AILEmitterCtx Context, Action Emit)
{
EmitVectorOpF(Context, Emit, OperFlags.RdRnRm);
}
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public static void EmitVectorOpF(AILEmitterCtx Context, Action Emit, OperFlags Opers)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int SizeF = Op.Size & 1;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> SizeF + 2;
bool Rd = (Opers & OperFlags.Rd) != 0;
bool Rn = (Opers & OperFlags.Rn) != 0;
bool Rm = (Opers & OperFlags.Rm) != 0;
for (int Index = 0; Index < Elems; Index++)
{
if (Rd)
{
EmitVectorExtractF(Context, Op.Rd, Index, SizeF);
}
if (Rn)
{
EmitVectorExtractF(Context, Op.Rn, Index, SizeF);
}
if (Rm)
{
EmitVectorExtractF(Context, ((AOpCodeSimdReg)Op).Rm, Index, SizeF);
}
Emit();
EmitVectorInsertF(Context, Op.Rd, Index, SizeF);
}
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitVectorBinaryOpByElemF(AILEmitterCtx Context, Action Emit)
{
AOpCodeSimdRegElemF Op = (AOpCodeSimdRegElemF)Context.CurrOp;
EmitVectorOpByElemF(Context, Emit, Op.Index, Ternary: false);
}
public static void EmitVectorTernaryOpByElemF(AILEmitterCtx Context, Action Emit)
{
AOpCodeSimdRegElemF Op = (AOpCodeSimdRegElemF)Context.CurrOp;
EmitVectorOpByElemF(Context, Emit, Op.Index, Ternary: true);
}
public static void EmitVectorOpByElemF(AILEmitterCtx Context, Action Emit, int Elem, bool Ternary)
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{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int SizeF = Op.Size & 1;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> SizeF + 2;
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for (int Index = 0; Index < Elems; Index++)
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{
if (Ternary)
{
EmitVectorExtractF(Context, Op.Rd, Index, SizeF);
}
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EmitVectorExtractF(Context, Op.Rn, Index, SizeF);
EmitVectorExtractF(Context, Op.Rm, Elem, SizeF);
Emit();
EmitVectorInsertTmpF(Context, Index, SizeF);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitVectorUnaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitVectorOp(Context, Emit, OperFlags.Rn, true);
}
public static void EmitVectorBinaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitVectorOp(Context, Emit, OperFlags.RnRm, true);
}
public static void EmitVectorTernaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitVectorOp(Context, Emit, OperFlags.RdRnRm, true);
}
public static void EmitVectorUnaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitVectorOp(Context, Emit, OperFlags.Rn, false);
}
public static void EmitVectorBinaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitVectorOp(Context, Emit, OperFlags.RnRm, false);
}
public static void EmitVectorTernaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitVectorOp(Context, Emit, OperFlags.RdRnRm, false);
}
public static void EmitVectorOp(AILEmitterCtx Context, Action Emit, OperFlags Opers, bool Signed)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
bool Rd = (Opers & OperFlags.Rd) != 0;
bool Rn = (Opers & OperFlags.Rn) != 0;
bool Rm = (Opers & OperFlags.Rm) != 0;
for (int Index = 0; Index < Elems; Index++)
{
if (Rd)
{
EmitVectorExtract(Context, Op.Rd, Index, Op.Size, Signed);
}
if (Rn)
{
EmitVectorExtract(Context, Op.Rn, Index, Op.Size, Signed);
}
if (Rm)
{
EmitVectorExtract(Context, ((AOpCodeSimdReg)Op).Rm, Index, Op.Size, Signed);
}
Emit();
EmitVectorInsert(Context, Op.Rd, Index, Op.Size);
}
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitVectorBinaryOpByElemSx(AILEmitterCtx Context, Action Emit)
{
AOpCodeSimdRegElem Op = (AOpCodeSimdRegElem)Context.CurrOp;
EmitVectorOpByElem(Context, Emit, Op.Index, false, true);
}
public static void EmitVectorBinaryOpByElemZx(AILEmitterCtx Context, Action Emit)
{
AOpCodeSimdRegElem Op = (AOpCodeSimdRegElem)Context.CurrOp;
EmitVectorOpByElem(Context, Emit, Op.Index, false, false);
}
public static void EmitVectorTernaryOpByElemZx(AILEmitterCtx Context, Action Emit)
{
AOpCodeSimdRegElem Op = (AOpCodeSimdRegElem)Context.CurrOp;
EmitVectorOpByElem(Context, Emit, Op.Index, true, false);
}
public static void EmitVectorOpByElem(AILEmitterCtx Context, Action Emit, int Elem, bool Ternary, bool Signed)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < Elems; Index++)
{
if (Ternary)
{
EmitVectorExtract(Context, Op.Rd, Index, Op.Size, Signed);
}
EmitVectorExtract(Context, Op.Rn, Index, Op.Size, Signed);
EmitVectorExtract(Context, Op.Rm, Elem, Op.Size, Signed);
Emit();
EmitVectorInsertTmp(Context, Index, Op.Size);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitVectorImmUnaryOp(AILEmitterCtx Context, Action Emit)
{
EmitVectorImmOp(Context, Emit, false);
}
public static void EmitVectorImmBinaryOp(AILEmitterCtx Context, Action Emit)
{
EmitVectorImmOp(Context, Emit, true);
}
public static void EmitVectorImmOp(AILEmitterCtx Context, Action Emit, bool Binary)
{
AOpCodeSimdImm Op = (AOpCodeSimdImm)Context.CurrOp;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = Bytes >> Op.Size;
for (int Index = 0; Index < Elems; Index++)
{
if (Binary)
{
EmitVectorExtractZx(Context, Op.Rd, Index, Op.Size);
}
Context.EmitLdc_I8(Op.Imm);
Emit();
EmitVectorInsert(Context, Op.Rd, Index, Op.Size);
}
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitVectorWidenRmBinaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitVectorWidenRmBinaryOp(Context, Emit, true);
}
public static void EmitVectorWidenRmBinaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitVectorWidenRmBinaryOp(Context, Emit, false);
}
public static void EmitVectorWidenRmBinaryOp(AILEmitterCtx Context, Action Emit, bool Signed)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Elems = 8 >> Op.Size;
int Part = Op.RegisterSize == ARegisterSize.SIMD128 ? Elems : 0;
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtract(Context, Op.Rn, Index, Op.Size + 1, Signed);
EmitVectorExtract(Context, Op.Rm, Part + Index, Op.Size, Signed);
Emit();
EmitVectorInsertTmp(Context, Index, Op.Size + 1);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
}
public static void EmitVectorWidenRnRmBinaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitVectorWidenRnRmOp(Context, Emit, false, true);
}
public static void EmitVectorWidenRnRmBinaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitVectorWidenRnRmOp(Context, Emit, false, false);
}
public static void EmitVectorWidenRnRmTernaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitVectorWidenRnRmOp(Context, Emit, true, true);
}
public static void EmitVectorWidenRnRmTernaryOpZx(AILEmitterCtx Context, Action Emit)
{
EmitVectorWidenRnRmOp(Context, Emit, true, false);
}
public static void EmitVectorWidenRnRmOp(AILEmitterCtx Context, Action Emit, bool Ternary, bool Signed)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Elems = 8 >> Op.Size;
int Part = Op.RegisterSize == ARegisterSize.SIMD128 ? Elems : 0;
for (int Index = 0; Index < Elems; Index++)
{
if (Ternary)
{
EmitVectorExtract(Context, Op.Rd, Index, Op.Size + 1, Signed);
}
EmitVectorExtract(Context, Op.Rn, Part + Index, Op.Size, Signed);
EmitVectorExtract(Context, Op.Rm, Part + Index, Op.Size, Signed);
Emit();
EmitVectorInsertTmp(Context, Index, Op.Size + 1);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
}
public static void EmitVectorPairwiseOpSx(AILEmitterCtx Context, Action Emit)
{
EmitVectorPairwiseOp(Context, Emit, true);
}
public static void EmitVectorPairwiseOpZx(AILEmitterCtx Context, Action Emit)
{
EmitVectorPairwiseOp(Context, Emit, false);
}
public static void EmitVectorPairwiseOp(AILEmitterCtx Context, Action Emit, bool Signed)
{
AOpCodeSimdReg Op = (AOpCodeSimdReg)Context.CurrOp;
int Words = Op.GetBitsCount() >> 4;
int Pairs = Words >> Op.Size;
for (int Index = 0; Index < Pairs; Index++)
{
int Idx = Index << 1;
EmitVectorExtract(Context, Op.Rn, Idx, Op.Size, Signed);
EmitVectorExtract(Context, Op.Rn, Idx + 1, Op.Size, Signed);
Emit();
EmitVectorExtract(Context, Op.Rm, Idx, Op.Size, Signed);
EmitVectorExtract(Context, Op.Rm, Idx + 1, Op.Size, Signed);
Emit();
EmitVectorInsertTmp(Context, Pairs + Index, Op.Size);
EmitVectorInsertTmp(Context, Index, Op.Size);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if (Op.RegisterSize == ARegisterSize.SIMD64)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
[Flags]
public enum SaturatingFlags
{
Scalar = 1 << 0,
Signed = 1 << 1,
Add = 1 << 2,
Sub = 1 << 3,
Accumulate = 1 << 4,
ScalarSx = Scalar | Signed,
ScalarZx = Scalar,
VectorSx = Signed,
VectorZx = 0,
}
public static void EmitScalarSaturatingUnaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingUnaryOpSx(Context, Emit, SaturatingFlags.ScalarSx);
}
public static void EmitVectorSaturatingUnaryOpSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingUnaryOpSx(Context, Emit, SaturatingFlags.VectorSx);
}
public static void EmitSaturatingUnaryOpSx(AILEmitterCtx Context, Action Emit, SaturatingFlags Flags)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
bool Scalar = (Flags & SaturatingFlags.Scalar) != 0;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = !Scalar ? Bytes >> Op.Size : 1;
if (Scalar)
{
EmitVectorZeroLowerTmp(Context);
}
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtractSx(Context, Op.Rn, Index, Op.Size);
Emit();
EmitUnarySignedSatQAbsOrNeg(Context, Op.Size);
EmitVectorInsertTmp(Context, Index, Op.Size);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if ((Op.RegisterSize == ARegisterSize.SIMD64) || Scalar)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
public static void EmitScalarSaturatingBinaryOpSx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.ScalarSx | Flags);
}
public static void EmitScalarSaturatingBinaryOpZx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.ScalarZx | Flags);
}
public static void EmitVectorSaturatingBinaryOpSx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.VectorSx | Flags);
}
public static void EmitVectorSaturatingBinaryOpZx(AILEmitterCtx Context, SaturatingFlags Flags)
{
EmitSaturatingBinaryOp(Context, SaturatingFlags.VectorZx | Flags);
}
public static void EmitSaturatingBinaryOp(AILEmitterCtx Context, SaturatingFlags Flags)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
bool Scalar = (Flags & SaturatingFlags.Scalar) != 0;
bool Signed = (Flags & SaturatingFlags.Signed) != 0;
bool Add = (Flags & SaturatingFlags.Add) != 0;
bool Sub = (Flags & SaturatingFlags.Sub) != 0;
bool Accumulate = (Flags & SaturatingFlags.Accumulate) != 0;
int Bytes = Op.GetBitsCount() >> 3;
int Elems = !Scalar ? Bytes >> Op.Size : 1;
if (Scalar)
{
EmitVectorZeroLowerTmp(Context);
}
if (Add || Sub)
{
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtract(Context, Op.Rn, Index, Op.Size, Signed);
EmitVectorExtract(Context, ((AOpCodeSimdReg)Op).Rm, Index, Op.Size, Signed);
if (Op.Size <= 2)
{
Context.Emit(Add ? OpCodes.Add : OpCodes.Sub);
EmitSatQ(Context, Op.Size, true, Signed);
}
else /* if (Op.Size == 3) */
{
if (Add)
{
EmitBinarySatQAdd(Context, Signed);
}
else /* if (Sub) */
{
EmitBinarySatQSub(Context, Signed);
}
}
EmitVectorInsertTmp(Context, Index, Op.Size);
}
}
else if (Accumulate)
{
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtract(Context, Op.Rn, Index, Op.Size, !Signed);
EmitVectorExtract(Context, Op.Rd, Index, Op.Size, Signed);
if (Op.Size <= 2)
{
Context.Emit(OpCodes.Add);
EmitSatQ(Context, Op.Size, true, Signed);
}
else /* if (Op.Size == 3) */
{
EmitBinarySatQAccumulate(Context, Signed);
}
EmitVectorInsertTmp(Context, Index, Op.Size);
}
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if ((Op.RegisterSize == ARegisterSize.SIMD64) || Scalar)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
[Flags]
public enum SaturatingNarrowFlags
{
Scalar = 1 << 0,
SignedSrc = 1 << 1,
SignedDst = 1 << 2,
ScalarSxSx = Scalar | SignedSrc | SignedDst,
ScalarSxZx = Scalar | SignedSrc,
ScalarZxSx = Scalar | SignedDst,
ScalarZxZx = Scalar,
VectorSxSx = SignedSrc | SignedDst,
VectorSxZx = SignedSrc,
VectorZxSx = SignedDst,
VectorZxZx = 0
}
public static void EmitScalarSaturatingNarrowOpSxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarSxSx);
}
public static void EmitScalarSaturatingNarrowOpSxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarSxZx);
}
public static void EmitScalarSaturatingNarrowOpZxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarZxSx);
}
public static void EmitScalarSaturatingNarrowOpZxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.ScalarZxZx);
}
public static void EmitVectorSaturatingNarrowOpSxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorSxSx);
}
public static void EmitVectorSaturatingNarrowOpSxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorSxZx);
}
public static void EmitVectorSaturatingNarrowOpZxSx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorZxSx);
}
public static void EmitVectorSaturatingNarrowOpZxZx(AILEmitterCtx Context, Action Emit)
{
EmitSaturatingNarrowOp(Context, Emit, SaturatingNarrowFlags.VectorZxZx);
}
public static void EmitSaturatingNarrowOp(AILEmitterCtx Context, Action Emit, SaturatingNarrowFlags Flags)
{
AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
bool Scalar = (Flags & SaturatingNarrowFlags.Scalar) != 0;
bool SignedSrc = (Flags & SaturatingNarrowFlags.SignedSrc) != 0;
bool SignedDst = (Flags & SaturatingNarrowFlags.SignedDst) != 0;
int Elems = !Scalar ? 8 >> Op.Size : 1;
int Part = !Scalar && (Op.RegisterSize == ARegisterSize.SIMD128) ? Elems : 0;
if (Scalar)
{
EmitVectorZeroLowerTmp(Context);
}
if (Part != 0)
{
Context.EmitLdvec(Op.Rd);
Context.EmitStvectmp();
}
for (int Index = 0; Index < Elems; Index++)
{
EmitVectorExtract(Context, Op.Rn, Index, Op.Size + 1, SignedSrc);
Emit();
EmitSatQ(Context, Op.Size, SignedSrc, SignedDst);
EmitVectorInsertTmp(Context, Part + Index, Op.Size);
}
Context.EmitLdvectmp();
Context.EmitStvec(Op.Rd);
if (Part == 0)
{
EmitVectorZeroUpper(Context, Op.Rd);
}
}
// TSrc (16bit, 32bit, 64bit; signed, unsigned) > TDst (8bit, 16bit, 32bit; signed, unsigned).
public static void EmitSatQ(
AILEmitterCtx Context,
int SizeDst,
bool SignedSrc,
bool SignedDst)
{
if (SizeDst > 2)
{
throw new ArgumentOutOfRangeException(nameof(SizeDst));
}
Context.EmitLdc_I4(SizeDst);
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
if (SignedSrc)
{
ASoftFallback.EmitCall(Context, SignedDst
? nameof(ASoftFallback.SignedSrcSignedDstSatQ)
: nameof(ASoftFallback.SignedSrcUnsignedDstSatQ));
}
else
{
ASoftFallback.EmitCall(Context, SignedDst
? nameof(ASoftFallback.UnsignedSrcSignedDstSatQ)
: nameof(ASoftFallback.UnsignedSrcUnsignedDstSatQ));
}
}
// TSrc (8bit, 16bit, 32bit, 64bit) == TDst (8bit, 16bit, 32bit, 64bit); signed.
public static void EmitUnarySignedSatQAbsOrNeg(AILEmitterCtx Context, int Size)
{
int ESize = 8 << Size;
long TMaxValue = (1L << (ESize - 1)) - 1L;
long TMinValue = -(1L << (ESize - 1));
AILLabel LblFalse = new AILLabel();
Context.Emit(OpCodes.Dup);
Context.Emit(OpCodes.Neg);
Context.EmitLdc_I8(TMinValue);
Context.Emit(OpCodes.Ceq);
Context.Emit(OpCodes.Brfalse_S, LblFalse);
Context.Emit(OpCodes.Pop);
EmitSetFpsrQCFlag(Context);
Context.EmitLdc_I8(TMaxValue);
Context.MarkLabel(LblFalse);
}
// TSrcs (64bit) == TDst (64bit); signed, unsigned.
public static void EmitBinarySatQAdd(AILEmitterCtx Context, bool Signed)
{
if (((AOpCodeSimdReg)Context.CurrOp).Size < 3)
{
throw new InvalidOperationException();
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
ASoftFallback.EmitCall(Context, Signed
? nameof(ASoftFallback.BinarySignedSatQAdd)
: nameof(ASoftFallback.BinaryUnsignedSatQAdd));
}
// TSrcs (64bit) == TDst (64bit); signed, unsigned.
public static void EmitBinarySatQSub(AILEmitterCtx Context, bool Signed)
{
if (((AOpCodeSimdReg)Context.CurrOp).Size < 3)
{
throw new InvalidOperationException();
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
ASoftFallback.EmitCall(Context, Signed
? nameof(ASoftFallback.BinarySignedSatQSub)
: nameof(ASoftFallback.BinaryUnsignedSatQSub));
}
// TSrcs (64bit) == TDst (64bit); signed, unsigned.
public static void EmitBinarySatQAccumulate(AILEmitterCtx Context, bool Signed)
{
if (((AOpCodeSimd)Context.CurrOp).Size < 3)
{
throw new InvalidOperationException();
}
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
ASoftFallback.EmitCall(Context, Signed
? nameof(ASoftFallback.BinarySignedSatQAcc)
: nameof(ASoftFallback.BinaryUnsignedSatQAcc));
}
public static void EmitSetFpsrQCFlag(AILEmitterCtx Context)
{
const int QCFlagBit = 27;
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitCallPropGet(typeof(AThreadState), nameof(AThreadState.Fpsr));
Context.EmitLdc_I4(1 << QCFlagBit);
Context.Emit(OpCodes.Or);
Context.EmitCallPropSet(typeof(AThreadState), nameof(AThreadState.Fpsr));
}
public static void EmitScalarSet(AILEmitterCtx Context, int Reg, int Size)
{
EmitVectorZeroAll(Context, Reg);
EmitVectorInsert(Context, Reg, 0, Size);
}
public static void EmitScalarSetF(AILEmitterCtx Context, int Reg, int Size)
{
EmitVectorZeroAll(Context, Reg);
EmitVectorInsertF(Context, Reg, 0, Size);
}
public static void EmitVectorExtractSx(AILEmitterCtx Context, int Reg, int Index, int Size)
{
EmitVectorExtract(Context, Reg, Index, Size, true);
}
public static void EmitVectorExtractZx(AILEmitterCtx Context, int Reg, int Index, int Size)
{
EmitVectorExtract(Context, Reg, Index, Size, false);
}
public static void EmitVectorExtract(AILEmitterCtx Context, int Reg, int Index, int Size, bool Signed)
{
ThrowIfInvalid(Index, Size);
IAOpCodeSimd Op = (IAOpCodeSimd)Context.CurrOp;
Context.EmitLdvec(Reg);
Context.EmitLdc_I4(Index);
Context.EmitLdc_I4(Size);
AVectorHelper.EmitCall(Context, Signed
? nameof(AVectorHelper.VectorExtractIntSx)
: nameof(AVectorHelper.VectorExtractIntZx));
}
public static void EmitVectorExtractF(AILEmitterCtx Context, int Reg, int Index, int Size)
{
ThrowIfInvalidF(Index, Size);
Context.EmitLdvec(Reg);
Context.EmitLdc_I4(Index);
if (Size == 0)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorExtractSingle));
}
else if (Size == 1)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorExtractDouble));
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
public static void EmitVectorZeroAll(AILEmitterCtx Context, int Rd)
{
EmitVectorZeroLower(Context, Rd);
EmitVectorZeroUpper(Context, Rd);
}
public static void EmitVectorZeroLower(AILEmitterCtx Context, int Rd)
{
EmitVectorInsert(Context, Rd, 0, 3, 0);
}
public static void EmitVectorZeroLowerTmp(AILEmitterCtx Context)
{
EmitVectorInsertTmp(Context, 0, 3, 0);
}
public static void EmitVectorZeroUpper(AILEmitterCtx Context, int Rd)
{
EmitVectorInsert(Context, Rd, 1, 3, 0);
}
public static void EmitVectorInsert(AILEmitterCtx Context, int Reg, int Index, int Size)
{
ThrowIfInvalid(Index, Size);
Context.EmitLdvec(Reg);
Context.EmitLdc_I4(Index);
Context.EmitLdc_I4(Size);
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertInt));
Context.EmitStvec(Reg);
}
public static void EmitVectorInsertTmp(AILEmitterCtx Context, int Index, int Size)
{
ThrowIfInvalid(Index, Size);
Context.EmitLdvectmp();
Context.EmitLdc_I4(Index);
Context.EmitLdc_I4(Size);
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertInt));
Context.EmitStvectmp();
}
public static void EmitVectorInsert(AILEmitterCtx Context, int Reg, int Index, int Size, long Value)
{
ThrowIfInvalid(Index, Size);
Context.EmitLdc_I8(Value);
Context.EmitLdvec(Reg);
Context.EmitLdc_I4(Index);
Context.EmitLdc_I4(Size);
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertInt));
Context.EmitStvec(Reg);
}
public static void EmitVectorInsertTmp(AILEmitterCtx Context, int Index, int Size, long Value)
{
ThrowIfInvalid(Index, Size);
Context.EmitLdc_I8(Value);
Context.EmitLdvectmp();
Context.EmitLdc_I4(Index);
Context.EmitLdc_I4(Size);
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertInt));
Context.EmitStvectmp();
}
public static void EmitVectorInsertF(AILEmitterCtx Context, int Reg, int Index, int Size)
{
ThrowIfInvalidF(Index, Size);
Context.EmitLdvec(Reg);
Context.EmitLdc_I4(Index);
if (Size == 0)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertSingle));
}
else if (Size == 1)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertDouble));
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
Context.EmitStvec(Reg);
}
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public static void EmitVectorInsertTmpF(AILEmitterCtx Context, int Index, int Size)
{
ThrowIfInvalidF(Index, Size);
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Context.EmitLdvectmp();
Context.EmitLdc_I4(Index);
if (Size == 0)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertSingle));
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}
else if (Size == 1)
{
AVectorHelper.EmitCall(Context, nameof(AVectorHelper.VectorInsertDouble));
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}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
Context.EmitStvectmp();
}
private static void ThrowIfInvalid(int Index, int Size)
{
if ((uint)Size > 3)
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
if ((uint)Index >= 16 >> Size)
{
throw new ArgumentOutOfRangeException(nameof(Index));
}
}
private static void ThrowIfInvalidF(int Index, int Size)
{
if ((uint)Size > 1)
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
if ((uint)Index >= 4 >> Size)
{
throw new ArgumentOutOfRangeException(nameof(Index));
}
}
}
}