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Sse optimized the Scalar & Vector fp-to-fp conversion instructions (MNPZ & IX); added the related Tests (AMNPZ & IX). Small refactoring of existing instructions. (#676)

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* Nit.

* Update InstEmitSimdCvt.cs

* Update VectorHelper.cs

* Update InstEmitSimdArithmetic.cs

* Update CpuTestSimd.cs

* Superseded.
This commit is contained in:
LDj3SNuD 2019-04-26 00:58:29 +02:00 • committed by jduncanator
parent 0d69d8e6c1
commit 16de171c44
6 changed files with 628 additions and 677 deletions
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160
ChocolArm64/Instructions/VectorHelper.cs
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@ -93,30 +93,162 @@ namespace ChocolArm64.Instructions
value <= ulong.MinValue ? ulong.MinValue : (ulong)value;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static double Round(double value, CpuThreadState state)
{
switch (state.FPRoundingMode())
{
case RoundMode.ToNearest: return Math.Round (value);
case RoundMode.TowardsPlusInfinity: return Math.Ceiling (value);
case RoundMode.TowardsMinusInfinity: return Math.Floor (value);
case RoundMode.TowardsZero: return Math.Truncate(value);
}
RoundMode roundMode = state.FPRoundingMode();
throw new InvalidOperationException();
if (roundMode == RoundMode.ToNearest)
{
return Math.Round(value); // even
}
else if (roundMode == RoundMode.TowardsPlusInfinity)
{
return Math.Ceiling(value);
}
else if (roundMode == RoundMode.TowardsMinusInfinity)
{
return Math.Floor(value);
}
else /* if (roundMode == RoundMode.TowardsZero) */
{
return Math.Truncate(value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static float RoundF(float value, CpuThreadState state)
{
switch (state.FPRoundingMode())
RoundMode roundMode = state.FPRoundingMode();
if (roundMode == RoundMode.ToNearest)
{
case RoundMode.ToNearest: return MathF.Round (value);
case RoundMode.TowardsPlusInfinity: return MathF.Ceiling (value);
case RoundMode.TowardsMinusInfinity: return MathF.Floor (value);
case RoundMode.TowardsZero: return MathF.Truncate(value);
return MathF.Round(value); // even
}
else if (roundMode == RoundMode.TowardsPlusInfinity)
{
return MathF.Ceiling(value);
}
else if (roundMode == RoundMode.TowardsMinusInfinity)
{
return MathF.Floor(value);
}
else /* if (roundMode == RoundMode.TowardsZero) */
{
return MathF.Truncate(value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<double> Sse41ScalarRound(Vector128<double> upper, Vector128<double> value, CpuThreadState state)
{
if (!Sse41.IsSupported)
{
throw new PlatformNotSupportedException();
}
throw new InvalidOperationException();
RoundMode roundMode = state.FPRoundingMode();
if (roundMode == RoundMode.ToNearest)
{
return Sse41.RoundToNearestIntegerScalar(upper, value); // even
}
else if (roundMode == RoundMode.TowardsPlusInfinity)
{
return Sse41.RoundToPositiveInfinityScalar(upper, value);
}
else if (roundMode == RoundMode.TowardsMinusInfinity)
{
return Sse41.RoundToNegativeInfinityScalar(upper, value);
}
else /* if (roundMode == RoundMode.TowardsZero) */
{
return Sse41.RoundToZeroScalar(upper, value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> Sse41ScalarRoundF(Vector128<float> upper, Vector128<float> value, CpuThreadState state)
{
if (!Sse41.IsSupported)
{
throw new PlatformNotSupportedException();
}
RoundMode roundMode = state.FPRoundingMode();
if (roundMode == RoundMode.ToNearest)
{
return Sse41.RoundToNearestIntegerScalar(upper, value); // even
}
else if (roundMode == RoundMode.TowardsPlusInfinity)
{
return Sse41.RoundToPositiveInfinityScalar(upper, value);
}
else if (roundMode == RoundMode.TowardsMinusInfinity)
{
return Sse41.RoundToNegativeInfinityScalar(upper, value);
}
else /* if (roundMode == RoundMode.TowardsZero) */
{
return Sse41.RoundToZeroScalar(upper, value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<double> Sse41VectorRound(Vector128<double> value, CpuThreadState state)
{
if (!Sse41.IsSupported)
{
throw new PlatformNotSupportedException();
}
RoundMode roundMode = state.FPRoundingMode();
if (roundMode == RoundMode.ToNearest)
{
return Sse41.RoundToNearestInteger(value); // even
}
else if (roundMode == RoundMode.TowardsPlusInfinity)
{
return Sse41.RoundToPositiveInfinity(value);
}
else if (roundMode == RoundMode.TowardsMinusInfinity)
{
return Sse41.RoundToNegativeInfinity(value);
}
else /* if (roundMode == RoundMode.TowardsZero) */
{
return Sse41.RoundToZero(value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vector128<float> Sse41VectorRoundF(Vector128<float> value, CpuThreadState state)
{
if (!Sse41.IsSupported)
{
throw new PlatformNotSupportedException();
}
RoundMode roundMode = state.FPRoundingMode();
if (roundMode == RoundMode.ToNearest)
{
return Sse41.RoundToNearestInteger(value); // even
}
else if (roundMode == RoundMode.TowardsPlusInfinity)
{
return Sse41.RoundToPositiveInfinity(value);
}
else if (roundMode == RoundMode.TowardsMinusInfinity)
{
return Sse41.RoundToNegativeInfinity(value);
}
else /* if (roundMode == RoundMode.TowardsZero) */
{
return Sse41.RoundToZero(value);
}
}
public static Vector128<float> Tbl1_V64(