Ryujinx/ChocolArm64/Instructions/InstEmitSimdCvt.cs

698 lines
20 KiB
C#
Raw Normal View History

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
{
public static void Fcvt_S(ILEmitterCtx context)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
if (Optimizations.UseSse2)
{
if (op.Size == 1 && op.Opc == 0)
{
//Double -> Single.
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleZero));
EmitLdvecWithCastToDouble(context, op.Rn);
Type[] types = new Type[] { typeof(Vector128<float>), typeof(Vector128<double>) };
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ConvertScalarToVector128Single), types));
context.EmitStvec(op.Rd);
}
else if (op.Size == 0 && op.Opc == 1)
{
//Single -> Double.
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorDoubleZero));
context.EmitLdvec(op.Rn);
Type[] types = new Type[] { typeof(Vector128<double>), typeof(Vector128<float>) };
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ConvertScalarToVector128Double), types));
EmitStvecWithCastFromDouble(context, op.Rd);
}
else
{
//Invalid encoding.
throw new InvalidOperationException();
}
}
else
{
EmitVectorExtractF(context, op.Rn, 0, op.Size);
EmitFloatCast(context, op.Opc);
EmitScalarSetF(context, op.Rd, op.Opc);
}
}
public static void Fcvtas_Gp(ILEmitterCtx context)
{
EmitFcvt_s_Gp(context, () => EmitRoundMathCall(context, MidpointRounding.AwayFromZero));
}
public static void Fcvtau_Gp(ILEmitterCtx context)
{
EmitFcvt_u_Gp(context, () => EmitRoundMathCall(context, MidpointRounding.AwayFromZero));
}
public static void Fcvtl_V(ILEmitterCtx context)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
int elems = 4 >> sizeF;
int part = op.RegisterSize == RegisterSize.Simd128 ? elems : 0;
for (int index = 0; index < elems; index++)
{
if (sizeF == 0)
{
EmitVectorExtractZx(context, op.Rn, part + index, 1);
context.Emit(OpCodes.Conv_U2);
context.EmitLdarg(TranslatedSub.StateArgIdx);
context.EmitCall(typeof(SoftFloat1632), nameof(SoftFloat1632.FPConvert));
}
else /* if (SizeF == 1) */
{
EmitVectorExtractF(context, op.Rn, part + index, 0);
context.Emit(OpCodes.Conv_R8);
}
EmitVectorInsertTmpF(context, index, sizeF);
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
}
public static void Fcvtms_Gp(ILEmitterCtx context)
{
EmitFcvt_s_Gp(context, () => EmitUnaryMathCall(context, nameof(Math.Floor)));
}
public static void Fcvtmu_Gp(ILEmitterCtx context)
{
EmitFcvt_u_Gp(context, () => EmitUnaryMathCall(context, nameof(Math.Floor)));
}
public static void Fcvtn_V(ILEmitterCtx context)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
int elems = 4 >> sizeF;
int part = op.RegisterSize == RegisterSize.Simd128 ? elems : 0;
if (part != 0)
{
context.EmitLdvec(op.Rd);
context.EmitStvectmp();
}
for (int index = 0; index < elems; index++)
{
EmitVectorExtractF(context, op.Rn, index, sizeF);
if (sizeF == 0)
{
context.EmitLdarg(TranslatedSub.StateArgIdx);
context.EmitCall(typeof(SoftFloat3216), nameof(SoftFloat3216.FPConvert));
context.Emit(OpCodes.Conv_U8);
EmitVectorInsertTmp(context, part + index, 1);
}
else /* if (SizeF == 1) */
{
context.Emit(OpCodes.Conv_R4);
EmitVectorInsertTmpF(context, part + index, 0);
}
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
if (part == 0)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Fcvtns_S(ILEmitterCtx context)
{
EmitFcvtn(context, signed: true, scalar: true);
}
public static void Fcvtns_V(ILEmitterCtx context)
{
EmitFcvtn(context, signed: true, scalar: false);
}
public static void Fcvtnu_S(ILEmitterCtx context)
{
EmitFcvtn(context, signed: false, scalar: true);
}
public static void Fcvtnu_V(ILEmitterCtx context)
{
EmitFcvtn(context, signed: false, scalar: false);
}
public static void Fcvtps_Gp(ILEmitterCtx context)
{
EmitFcvt_s_Gp(context, () => EmitUnaryMathCall(context, nameof(Math.Ceiling)));
}
public static void Fcvtpu_Gp(ILEmitterCtx context)
{
EmitFcvt_u_Gp(context, () => EmitUnaryMathCall(context, nameof(Math.Ceiling)));
}
public static void Fcvtzs_Gp(ILEmitterCtx context)
{
EmitFcvt_s_Gp(context, () => { });
}
public static void Fcvtzs_Gp_Fix(ILEmitterCtx context)
{
EmitFcvtzs_Gp_Fix(context);
}
public static void Fcvtzs_S(ILEmitterCtx context)
{
EmitScalarFcvtzs(context);
}
public static void Fcvtzs_V(ILEmitterCtx context)
{
EmitVectorFcvtzs(context);
}
public static void Fcvtzu_Gp(ILEmitterCtx context)
{
EmitFcvt_u_Gp(context, () => { });
}
public static void Fcvtzu_Gp_Fix(ILEmitterCtx context)
{
EmitFcvtzu_Gp_Fix(context);
}
public static void Fcvtzu_S(ILEmitterCtx context)
{
EmitScalarFcvtzu(context);
}
public static void Fcvtzu_V(ILEmitterCtx context)
{
EmitVectorFcvtzu(context);
}
public static void Scvtf_Gp(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U4);
}
EmitFloatCast(context, op.Size);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Scvtf_S(ILEmitterCtx context)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
EmitVectorExtractSx(context, op.Rn, 0, op.Size + 2);
EmitFloatCast(context, op.Size);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Scvtf_V(ILEmitterCtx context)
{
EmitVectorCvtf(context, signed: true);
}
public static void Ucvtf_Gp(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U4);
}
context.Emit(OpCodes.Conv_R_Un);
EmitFloatCast(context, op.Size);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Ucvtf_S(ILEmitterCtx context)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
EmitVectorExtractZx(context, op.Rn, 0, op.Size + 2);
context.Emit(OpCodes.Conv_R_Un);
EmitFloatCast(context, op.Size);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Ucvtf_V(ILEmitterCtx context)
{
EmitVectorCvtf(context, signed: false);
}
private static int GetFBits(ILEmitterCtx context)
{
if (context.CurrOp is OpCodeSimdShImm64 op)
{
return GetImmShr(op);
}
return 0;
}
private static void EmitFloatCast(ILEmitterCtx context, int size)
{
if (size == 0)
{
context.Emit(OpCodes.Conv_R4);
}
else if (size == 1)
{
context.Emit(OpCodes.Conv_R8);
}
else
{
throw new ArgumentOutOfRangeException(nameof(size));
}
}
private static void EmitFcvtn(ILEmitterCtx context, bool signed, bool scalar)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
int sizeI = sizeF + 2;
int bytes = op.GetBitsCount() >> 3;
int elems = !scalar ? bytes >> sizeI : 1;
if (scalar && (sizeF == 0))
{
EmitVectorZeroLowerTmp(context);
}
for (int index = 0; index < elems; index++)
{
EmitVectorExtractF(context, op.Rn, index, sizeF);
EmitRoundMathCall(context, MidpointRounding.ToEven);
if (sizeF == 0)
{
VectorHelper.EmitCall(context, signed
? nameof(VectorHelper.SatF32ToS32)
: nameof(VectorHelper.SatF32ToU32));
context.Emit(OpCodes.Conv_U8);
}
else /* if (SizeF == 1) */
{
VectorHelper.EmitCall(context, signed
? nameof(VectorHelper.SatF64ToS64)
: nameof(VectorHelper.SatF64ToU64));
}
EmitVectorInsertTmp(context, index, sizeI);
}
context.EmitLdvectmp();
context.EmitStvec(op.Rd);
if ((op.RegisterSize == RegisterSize.Simd64) || scalar)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
private static void EmitFcvt_s_Gp(ILEmitterCtx context, Action emit)
{
EmitFcvt___Gp(context, emit, true);
}
private static void EmitFcvt_u_Gp(ILEmitterCtx context, Action emit)
{
EmitFcvt___Gp(context, emit, false);
}
private static void EmitFcvt___Gp(ILEmitterCtx context, Action emit, bool signed)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
EmitVectorExtractF(context, op.Rn, 0, op.Size);
emit();
if (signed)
{
EmitScalarFcvts(context, op.Size, 0);
}
else
{
EmitScalarFcvtu(context, op.Size, 0);
}
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
context.EmitStintzr(op.Rd);
}
private static void EmitFcvtzs_Gp_Fix(ILEmitterCtx context)
{
EmitFcvtz__Gp_Fix(context, true);
}
private static void EmitFcvtzu_Gp_Fix(ILEmitterCtx context)
{
EmitFcvtz__Gp_Fix(context, false);
}
private static void EmitFcvtz__Gp_Fix(ILEmitterCtx context, bool signed)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
EmitVectorExtractF(context, op.Rn, 0, op.Size);
if (signed)
{
EmitScalarFcvts(context, op.Size, op.FBits);
}
else
{
EmitScalarFcvtu(context, op.Size, op.FBits);
}
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
context.EmitStintzr(op.Rd);
}
private static void EmitVectorScvtf(ILEmitterCtx context)
{
EmitVectorCvtf(context, true);
}
private static void EmitVectorUcvtf(ILEmitterCtx context)
{
EmitVectorCvtf(context, false);
}
private static void EmitVectorCvtf(ILEmitterCtx context, bool signed)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
int sizeI = sizeF + 2;
int fBits = GetFBits(context);
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> sizeI;
for (int index = 0; index < elems; index++)
{
EmitVectorExtract(context, op.Rn, index, sizeI, signed);
if (!signed)
{
context.Emit(OpCodes.Conv_R_Un);
}
context.Emit(sizeF == 0
? OpCodes.Conv_R4
: OpCodes.Conv_R8);
EmitI2fFBitsMul(context, sizeF, fBits);
EmitVectorInsertF(context, op.Rd, index, sizeF);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
private static void EmitScalarFcvtzs(ILEmitterCtx context)
{
EmitScalarFcvtz(context, true);
}
private static void EmitScalarFcvtzu(ILEmitterCtx context)
{
EmitScalarFcvtz(context, false);
}
private static void EmitScalarFcvtz(ILEmitterCtx context, bool signed)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
int sizeI = sizeF + 2;
int fBits = GetFBits(context);
EmitVectorExtractF(context, op.Rn, 0, sizeF);
EmitF2iFBitsMul(context, sizeF, fBits);
if (sizeF == 0)
{
VectorHelper.EmitCall(context, signed
? nameof(VectorHelper.SatF32ToS32)
: nameof(VectorHelper.SatF32ToU32));
}
else /* if (SizeF == 1) */
{
VectorHelper.EmitCall(context, signed
? nameof(VectorHelper.SatF64ToS64)
: nameof(VectorHelper.SatF64ToU64));
}
if (sizeF == 0)
{
context.Emit(OpCodes.Conv_U8);
}
EmitScalarSet(context, op.Rd, sizeI);
}
private static void EmitVectorFcvtzs(ILEmitterCtx context)
{
EmitVectorFcvtz(context, true);
}
private static void EmitVectorFcvtzu(ILEmitterCtx context)
{
EmitVectorFcvtz(context, false);
}
private static void EmitVectorFcvtz(ILEmitterCtx context, bool signed)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int sizeF = op.Size & 1;
int sizeI = sizeF + 2;
int fBits = GetFBits(context);
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> sizeI;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractF(context, op.Rn, index, sizeF);
EmitF2iFBitsMul(context, sizeF, fBits);
if (sizeF == 0)
{
VectorHelper.EmitCall(context, signed
? nameof(VectorHelper.SatF32ToS32)
: nameof(VectorHelper.SatF32ToU32));
}
else /* if (SizeF == 1) */
{
VectorHelper.EmitCall(context, signed
? nameof(VectorHelper.SatF64ToS64)
: nameof(VectorHelper.SatF64ToU64));
}
if (sizeF == 0)
{
context.Emit(OpCodes.Conv_U8);
}
EmitVectorInsert(context, op.Rd, index, sizeI);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
private static void EmitScalarFcvts(ILEmitterCtx context, int size, int fBits)
{
if (size < 0 || size > 1)
{
throw new ArgumentOutOfRangeException(nameof(size));
}
EmitF2iFBitsMul(context, size, fBits);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
if (size == 0)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF32ToS32));
}
else /* if (Size == 1) */
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF64ToS32));
}
}
else
{
if (size == 0)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF32ToS64));
}
else /* if (Size == 1) */
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF64ToS64));
}
}
}
private static void EmitScalarFcvtu(ILEmitterCtx context, int size, int fBits)
{
if (size < 0 || size > 1)
{
throw new ArgumentOutOfRangeException(nameof(size));
}
EmitF2iFBitsMul(context, size, fBits);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
if (size == 0)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF32ToU32));
}
else /* if (Size == 1) */
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF64ToU32));
}
}
else
{
if (size == 0)
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF32ToU64));
}
else /* if (Size == 1) */
{
VectorHelper.EmitCall(context, nameof(VectorHelper.SatF64ToU64));
}
}
}
private static void EmitF2iFBitsMul(ILEmitterCtx context, int size, int fBits)
{
if (fBits != 0)
{
if (size == 0)
{
context.EmitLdc_R4(MathF.Pow(2f, fBits));
}
else if (size == 1)
{
context.EmitLdc_R8(Math.Pow(2d, fBits));
}
else
{
throw new ArgumentOutOfRangeException(nameof(size));
}
context.Emit(OpCodes.Mul);
}
}
private static void EmitI2fFBitsMul(ILEmitterCtx context, int size, int fBits)
{
if (fBits != 0)
{
if (size == 0)
{
context.EmitLdc_R4(1f / MathF.Pow(2f, fBits));
}
else if (size == 1)
{
context.EmitLdc_R8(1d / Math.Pow(2d, fBits));
}
else
{
throw new ArgumentOutOfRangeException(nameof(size));
}
context.Emit(OpCodes.Mul);
}
}
}
}