Ryujinx/ChocolArm64/Instruction/AVectorHelper.cs
LDj3SNuD e674b37710 Fix Fcvtl_V and Fcvtn_V; fix half to float conv. and add float to half conv. (full FP emu.). Add 4 FP Tests. (#468)
* Update CpuTest.cs

* Update CpuTestSimd.cs

* Superseded.

* Update AInstEmitSimdCvt.cs

* Update ASoftFloat.cs

* Nit.

* Update PackageReferences.

* Update AInstEmitSimdArithmetic.cs

* Update AVectorHelper.cs

* Update ASoftFloat.cs

* Update ASoftFallback.cs

* Update AThreadState.cs

* Create FPType.cs

* Create FPExc.cs

* Create FPCR.cs

* Create FPSR.cs

* Update ARoundMode.cs

* Update APState.cs

* Avoid an unwanted implicit cast of the operator >= to long, continuing to check for negative values. Remove a leftover.

* Nits.
2018-10-23 11:12:45 -03:00

791 lines
26 KiB
C#

using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Runtime.CompilerServices;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
namespace ChocolArm64.Instruction
{
static class AVectorHelper
{
private static readonly Vector128<float> Zero32_128Mask;
static AVectorHelper()
{
if (!Sse2.IsSupported)
{
throw new PlatformNotSupportedException();
}
Zero32_128Mask = Sse.StaticCast<uint, float>(Sse2.SetVector128(0, 0, 0, 0xffffffff));
}
public static void EmitCall(AILEmitterCtx Context, string Name64, string Name128)
{
bool IsSimd64 = Context.CurrOp.RegisterSize == ARegisterSize.SIMD64;
Context.EmitCall(typeof(AVectorHelper), IsSimd64 ? Name64 : Name128);
}
public static void EmitCall(AILEmitterCtx Context, string MthdName)
{
Context.EmitCall(typeof(AVectorHelper), MthdName);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int SatF32ToS32(float Value)
{
if (float.IsNaN(Value)) return 0;
return Value > int.MaxValue ? int.MaxValue :
Value < int.MinValue ? int.MinValue : (int)Value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static long SatF32ToS64(float Value)
{
if (float.IsNaN(Value)) return 0;
return Value > long.MaxValue ? long.MaxValue :
Value < long.MinValue ? long.MinValue : (long)Value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static uint SatF32ToU32(float Value)
{
if (float.IsNaN(Value)) return 0;
return Value > uint.MaxValue ? uint.MaxValue :
Value < uint.MinValue ? uint.MinValue : (uint)Value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ulong SatF32ToU64(float Value)
{
if (float.IsNaN(Value)) return 0;
return Value > ulong.MaxValue ? ulong.MaxValue :
Value < ulong.MinValue ? ulong.MinValue : (ulong)Value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int SatF64ToS32(double Value)
{
if (double.IsNaN(Value)) return 0;
return Value > int.MaxValue ? int.MaxValue :
Value < int.MinValue ? int.MinValue : (int)Value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static long SatF64ToS64(double Value)
{
if (double.IsNaN(Value)) return 0;
return Value > long.MaxValue ? long.MaxValue :
Value < long.MinValue ? long.MinValue : (long)Value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static uint SatF64ToU32(double Value)
{
if (double.IsNaN(Value)) return 0;
return Value > uint.MaxValue ? uint.MaxValue :
Value < uint.MinValue ? uint.MinValue : (uint)Value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ulong SatF64ToU64(double Value)
{
if (double.IsNaN(Value)) return 0;
return Value > ulong.MaxValue ? ulong.MaxValue :
Value < ulong.MinValue ? ulong.MinValue : (ulong)Value;
}
public static double Round(double Value, AThreadState State)
{
switch (State.FPRoundingMode())
{
case ARoundMode.ToNearest: return Math.Round (Value);
case ARoundMode.TowardsPlusInfinity: return Math.Ceiling (Value);
case ARoundMode.TowardsMinusInfinity: return Math.Floor (Value);
case ARoundMode.TowardsZero: return Math.Truncate(Value);
}
throw new InvalidOperationException();
}
public static float RoundF(float Value, AThreadState State)
{
switch (State.FPRoundingMode())
{
case ARoundMode.ToNearest: return MathF.Round (Value);
case ARoundMode.TowardsPlusInfinity: return MathF.Ceiling (Value);
case ARoundMode.TowardsMinusInfinity: return MathF.Floor (Value);
case ARoundMode.TowardsZero: return MathF.Truncate(Value);
}
throw new InvalidOperationException();
}
public static Vector128<float> Tbl1_V64(
Vector128<float> Vector,
Vector128<float> Tb0)
{
return Tbl(Vector, 8, Tb0);
}
public static Vector128<float> Tbl1_V128(
Vector128<float> Vector,
Vector128<float> Tb0)
{
return Tbl(Vector, 16, Tb0);
}
public static Vector128<float> Tbl2_V64(
Vector128<float> Vector,
Vector128<float> Tb0,
Vector128<float> Tb1)
{
return Tbl(Vector, 8, Tb0, Tb1);
}
public static Vector128<float> Tbl2_V128(
Vector128<float> Vector,
Vector128<float> Tb0,
Vector128<float> Tb1)
{
return Tbl(Vector, 16, Tb0, Tb1);
}
public static Vector128<float> Tbl3_V64(
Vector128<float> Vector,
Vector128<float> Tb0,
Vector128<float> Tb1,
Vector128<float> Tb2)
{
return Tbl(Vector, 8, Tb0, Tb1, Tb2);
}
public static Vector128<float> Tbl3_V128(
Vector128<float> Vector,
Vector128<float> Tb0,
Vector128<float> Tb1,
Vector128<float> Tb2)
{
return Tbl(Vector, 16, Tb0, Tb1, Tb2);
}
public static Vector128<float> Tbl4_V64(
Vector128<float> Vector,
Vector128<float> Tb0,
Vector128<float> Tb1,
Vector128<float> Tb2,
Vector128<float> Tb3)
{
return Tbl(Vector, 8, Tb0, Tb1, Tb2, Tb3);
}
public static Vector128<float> Tbl4_V128(
Vector128<float> Vector,
Vector128<float> Tb0,
Vector128<float> Tb1,
Vector128<float> Tb2,
Vector128<float> Tb3)
{
return Tbl(Vector, 16, Tb0, Tb1, Tb2, Tb3);
}
private static Vector128<float> Tbl(Vector128<float> Vector, int Bytes, params Vector128<float>[] Tb)
{
Vector128<float> Res = new Vector128<float>();
byte[] Table = new byte[Tb.Length * 16];
for (byte Index = 0; Index < Tb.Length; Index++)
for (byte Index2 = 0; Index2 < 16; Index2++)
{
Table[Index * 16 + Index2] = (byte)VectorExtractIntZx(Tb[Index], Index2, 0);
}
for (byte Index = 0; Index < Bytes; Index++)
{
byte TblIdx = (byte)VectorExtractIntZx(Vector, Index, 0);
if (TblIdx < Table.Length)
{
Res = VectorInsertInt(Table[TblIdx], Res, Index, 0);
}
}
return Res;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static double VectorExtractDouble(Vector128<float> Vector, byte Index)
{
if (Sse41.IsSupported)
{
return BitConverter.Int64BitsToDouble(Sse41.Extract(Sse.StaticCast<float, long>(Vector), Index));
}
else if (Sse2.IsSupported)
{
return BitConverter.Int64BitsToDouble((long)VectorExtractIntZx(Vector, Index, 3));
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static long VectorExtractIntSx(Vector128<float> Vector, byte Index, int Size)
{
if (Sse41.IsSupported)
{
if (Size == 0)
{
return (sbyte)Sse41.Extract(Sse.StaticCast<float, byte>(Vector), Index);
}
else if (Size == 1)
{
return (short)Sse2.Extract(Sse.StaticCast<float, ushort>(Vector), Index);
}
else if (Size == 2)
{
return Sse41.Extract(Sse.StaticCast<float, int>(Vector), Index);
}
else if (Size == 3)
{
return Sse41.Extract(Sse.StaticCast<float, long>(Vector), Index);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
else if (Sse2.IsSupported)
{
if (Size == 0)
{
return (sbyte)VectorExtractIntZx(Vector, Index, Size);
}
else if (Size == 1)
{
return (short)VectorExtractIntZx(Vector, Index, Size);
}
else if (Size == 2)
{
return (int)VectorExtractIntZx(Vector, Index, Size);
}
else if (Size == 3)
{
return (long)VectorExtractIntZx(Vector, Index, Size);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static ulong VectorExtractIntZx(Vector128<float> Vector, byte Index, int Size)
{
if (Sse41.IsSupported)
{
if (Size == 0)
{
return Sse41.Extract(Sse.StaticCast<float, byte>(Vector), Index);
}
else if (Size == 1)
{
return Sse2.Extract(Sse.StaticCast<float, ushort>(Vector), Index);
}
else if (Size == 2)
{
return Sse41.Extract(Sse.StaticCast<float, uint>(Vector), Index);
}
else if (Size == 3)
{
return Sse41.Extract(Sse.StaticCast<float, ulong>(Vector), Index);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
else if (Sse2.IsSupported)
{
int ShortIdx = Size == 0
? Index >> 1
: Index << (Size - 1);
ushort Value = Sse2.Extract(Sse.StaticCast<float, ushort>(Vector), (byte)ShortIdx);
if (Size == 0)
{
return (byte)(Value >> (Index & 1) * 8);
}
else if (Size == 1)
{
return Value;
}
else if (Size == 2 || Size == 3)
{
ushort Value1 = Sse2.Extract(Sse.StaticCast<float, ushort>(Vector), (byte)(ShortIdx + 1));
if (Size == 2)
{
return (uint)(Value | (Value1 << 16));
}
ushort Value2 = Sse2.Extract(Sse.StaticCast<float, ushort>(Vector), (byte)(ShortIdx + 2));
ushort Value3 = Sse2.Extract(Sse.StaticCast<float, ushort>(Vector), (byte)(ShortIdx + 3));
return ((ulong)Value << 0) |
((ulong)Value1 << 16) |
((ulong)Value2 << 32) |
((ulong)Value3 << 48);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static float VectorExtractSingle(Vector128<float> Vector, byte Index)
{
if (Sse41.IsSupported)
{
return Sse41.Extract(Vector, Index);
}
else if (Sse2.IsSupported)
{
Vector128<ushort> ShortVector = Sse.StaticCast<float, ushort>(Vector);
int Low = Sse2.Extract(ShortVector, (byte)(Index * 2 + 0));
int High = Sse2.Extract(ShortVector, (byte)(Index * 2 + 1));
return BitConverter.Int32BitsToSingle(Low | (High << 16));
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorInsertDouble(double Value, Vector128<float> Vector, byte Index)
{
return VectorInsertInt((ulong)BitConverter.DoubleToInt64Bits(Value), Vector, Index, 3);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorInsertInt(ulong Value, Vector128<float> Vector, byte Index, int Size)
{
if (Sse41.IsSupported)
{
if (Size == 0)
{
return Sse.StaticCast<byte, float>(Sse41.Insert(Sse.StaticCast<float, byte>(Vector), (byte)Value, Index));
}
else if (Size == 1)
{
return Sse.StaticCast<ushort, float>(Sse2.Insert(Sse.StaticCast<float, ushort>(Vector), (ushort)Value, Index));
}
else if (Size == 2)
{
return Sse.StaticCast<uint, float>(Sse41.Insert(Sse.StaticCast<float, uint>(Vector), (uint)Value, Index));
}
else if (Size == 3)
{
return Sse.StaticCast<ulong, float>(Sse41.Insert(Sse.StaticCast<float, ulong>(Vector), Value, Index));
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
else if (Sse2.IsSupported)
{
Vector128<ushort> ShortVector = Sse.StaticCast<float, ushort>(Vector);
int ShortIdx = Size == 0
? Index >> 1
: Index << (Size - 1);
if (Size == 0)
{
ushort ShortVal = Sse2.Extract(Sse.StaticCast<float, ushort>(Vector), (byte)ShortIdx);
int Shift = (Index & 1) * 8;
ShortVal &= (ushort)(0xff00 >> Shift);
ShortVal |= (ushort)((byte)Value << Shift);
return Sse.StaticCast<ushort, float>(Sse2.Insert(ShortVector, ShortVal, (byte)ShortIdx));
}
else if (Size == 1)
{
return Sse.StaticCast<ushort, float>(Sse2.Insert(Sse.StaticCast<float, ushort>(Vector), (ushort)Value, Index));
}
else if (Size == 2 || Size == 3)
{
ShortVector = Sse2.Insert(ShortVector, (ushort)(Value >> 0), (byte)(ShortIdx + 0));
ShortVector = Sse2.Insert(ShortVector, (ushort)(Value >> 16), (byte)(ShortIdx + 1));
if (Size == 3)
{
ShortVector = Sse2.Insert(ShortVector, (ushort)(Value >> 32), (byte)(ShortIdx + 2));
ShortVector = Sse2.Insert(ShortVector, (ushort)(Value >> 48), (byte)(ShortIdx + 3));
}
return Sse.StaticCast<ushort, float>(ShortVector);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Size));
}
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorInsertSingle(float Value, Vector128<float> Vector, byte Index)
{
if (Sse41.IsSupported)
{
//Note: The if/else if is necessary to enable the JIT to
//produce a single INSERTPS instruction instead of the
//jump table fallback.
if (Index == 0)
{
return Sse41.Insert(Vector, Value, 0x00);
}
else if (Index == 1)
{
return Sse41.Insert(Vector, Value, 0x10);
}
else if (Index == 2)
{
return Sse41.Insert(Vector, Value, 0x20);
}
else if (Index == 3)
{
return Sse41.Insert(Vector, Value, 0x30);
}
else
{
throw new ArgumentOutOfRangeException(nameof(Index));
}
}
else if (Sse2.IsSupported)
{
int IntValue = BitConverter.SingleToInt32Bits(Value);
ushort Low = (ushort)(IntValue >> 0);
ushort High = (ushort)(IntValue >> 16);
Vector128<ushort> ShortVector = Sse.StaticCast<float, ushort>(Vector);
ShortVector = Sse2.Insert(ShortVector, Low, (byte)(Index * 2 + 0));
ShortVector = Sse2.Insert(ShortVector, High, (byte)(Index * 2 + 1));
return Sse.StaticCast<ushort, float>(ShortVector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> Sse41VectorInsertScalarSingle(float Value, Vector128<float> Vector)
{
//Note: 0b1110 is the mask to zero the upper bits.
return Sse41.Insert(Vector, Value, 0b1110);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<sbyte> VectorSByteZero()
{
if (Sse2.IsSupported)
{
return Sse2.SetZeroVector128<sbyte>();
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<short> VectorInt16Zero()
{
if (Sse2.IsSupported)
{
return Sse2.SetZeroVector128<short>();
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<int> VectorInt32Zero()
{
if (Sse2.IsSupported)
{
return Sse2.SetZeroVector128<int>();
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<long> VectorInt64Zero()
{
if (Sse2.IsSupported)
{
return Sse2.SetZeroVector128<long>();
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorSingleZero()
{
if (Sse.IsSupported)
{
return Sse.SetZeroVector128();
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<double> VectorDoubleZero()
{
if (Sse2.IsSupported)
{
return Sse2.SetZeroVector128<double>();
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorZero32_128(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.And(Vector, Zero32_128Mask);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<sbyte> VectorSingleToSByte(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, sbyte>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<short> VectorSingleToInt16(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, short>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<int> VectorSingleToInt32(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, int>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<long> VectorSingleToInt64(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, long>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<byte> VectorSingleToByte(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, byte>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<ushort> VectorSingleToUInt16(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, ushort>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<uint> VectorSingleToUInt32(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, uint>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<ulong> VectorSingleToUInt64(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, ulong>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<double> VectorSingleToDouble(Vector128<float> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<float, double>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorSByteToSingle(Vector128<sbyte> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<sbyte, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorInt16ToSingle(Vector128<short> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<short, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorInt32ToSingle(Vector128<int> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<int, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorInt64ToSingle(Vector128<long> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<long, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorByteToSingle(Vector128<byte> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<byte, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorUInt16ToSingle(Vector128<ushort> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<ushort, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorUInt32ToSingle(Vector128<uint> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<uint, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorUInt64ToSingle(Vector128<ulong> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<ulong, float>(Vector);
}
throw new PlatformNotSupportedException();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> VectorDoubleToSingle(Vector128<double> Vector)
{
if (Sse.IsSupported)
{
return Sse.StaticCast<double, float>(Vector);
}
throw new PlatformNotSupportedException();
}
}
}