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Ryujinx/Ryujinx.Tests/Cpu/CpuTestSimd32.cs
mageven 9bda7b4699
Implement VCNT instruction (#1963)
* Implement VCNT based on AArch64 CNT

Add tests

* Update PTC version

* Address LDj's comments

* Explicit size in encoding
* Tighter tests
* Replace SoftFallback with IR helper

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

* Reduce one BitwiseAnd from IR fallback

Based on popcount64b from https://en.wikipedia.org/wiki/Hamming_weight#Efficient_implementation

* Rename parameter and add assert

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>
2021-02-22 16:26:13 +01:00

259 lines
9.2 KiB
C#

#define Simd32
using ARMeilleure.State;
using NUnit.Framework;
using System.Collections.Generic;
namespace Ryujinx.Tests.Cpu
{
[Category("Simd32")]
public sealed class CpuTestSimd32 : CpuTest32
{
#if Simd32
#region "ValueSource (Opcodes)"
private static uint[] _Vabs_Vneg_V_()
{
return new uint[]
{
0xf3b10300u, // VABS.S8 D0, D0
0xf3b10380u // VNEG.S8 D0, D0
};
}
#endregion
#region "ValueSource (Types)"
private static ulong[] _8B4H2S_()
{
return new ulong[] { 0x0000000000000000ul, 0x7F7F7F7F7F7F7F7Ful,
0x8080808080808080ul, 0x7FFF7FFF7FFF7FFFul,
0x8000800080008000ul, 0x7FFFFFFF7FFFFFFFul,
0x8000000080000000ul, 0xFFFFFFFFFFFFFFFFul };
}
private static IEnumerable<ulong> _1S_F_()
{
yield return 0x00000000FF7FFFFFul; // -Max Normal (float.MinValue)
yield return 0x0000000080800000ul; // -Min Normal
yield return 0x00000000807FFFFFul; // -Max Subnormal
yield return 0x0000000080000001ul; // -Min Subnormal (-float.Epsilon)
yield return 0x000000007F7FFFFFul; // +Max Normal (float.MaxValue)
yield return 0x0000000000800000ul; // +Min Normal
yield return 0x00000000007FFFFFul; // +Max Subnormal
yield return 0x0000000000000001ul; // +Min Subnormal (float.Epsilon)
if (!NoZeros)
{
yield return 0x0000000080000000ul; // -Zero
yield return 0x0000000000000000ul; // +Zero
}
if (!NoInfs)
{
yield return 0x00000000FF800000ul; // -Infinity
yield return 0x000000007F800000ul; // +Infinity
}
if (!NoNaNs)
{
yield return 0x00000000FFC00000ul; // -QNaN (all zeros payload) (float.NaN)
yield return 0x00000000FFBFFFFFul; // -SNaN (all ones payload)
yield return 0x000000007FC00000ul; // +QNaN (all zeros payload) (-float.NaN) (DefaultNaN)
yield return 0x000000007FBFFFFFul; // +SNaN (all ones payload)
}
for (int cnt = 1; cnt <= RndCnt; cnt++)
{
ulong grbg = TestContext.CurrentContext.Random.NextUInt();
ulong rnd1 = GenNormalS();
ulong rnd2 = GenSubnormalS();
yield return (grbg << 32) | rnd1;
yield return (grbg << 32) | rnd2;
}
}
private static IEnumerable<ulong> _2S_F_()
{
yield return 0xFF7FFFFFFF7FFFFFul; // -Max Normal (float.MinValue)
yield return 0x8080000080800000ul; // -Min Normal
yield return 0x807FFFFF807FFFFFul; // -Max Subnormal
yield return 0x8000000180000001ul; // -Min Subnormal (-float.Epsilon)
yield return 0x7F7FFFFF7F7FFFFFul; // +Max Normal (float.MaxValue)
yield return 0x0080000000800000ul; // +Min Normal
yield return 0x007FFFFF007FFFFFul; // +Max Subnormal
yield return 0x0000000100000001ul; // +Min Subnormal (float.Epsilon)
if (!NoZeros)
{
yield return 0x8000000080000000ul; // -Zero
yield return 0x0000000000000000ul; // +Zero
}
if (!NoInfs)
{
yield return 0xFF800000FF800000ul; // -Infinity
yield return 0x7F8000007F800000ul; // +Infinity
}
if (!NoNaNs)
{
yield return 0xFFC00000FFC00000ul; // -QNaN (all zeros payload) (float.NaN)
yield return 0xFFBFFFFFFFBFFFFFul; // -SNaN (all ones payload)
yield return 0x7FC000007FC00000ul; // +QNaN (all zeros payload) (-float.NaN) (DefaultNaN)
yield return 0x7FBFFFFF7FBFFFFFul; // +SNaN (all ones payload)
}
for (int cnt = 1; cnt <= RndCnt; cnt++)
{
ulong rnd1 = GenNormalS();
ulong rnd2 = GenSubnormalS();
yield return (rnd1 << 32) | rnd1;
yield return (rnd2 << 32) | rnd2;
}
}
private static IEnumerable<ulong> _1D_F_()
{
yield return 0xFFEFFFFFFFFFFFFFul; // -Max Normal (double.MinValue)
yield return 0x8010000000000000ul; // -Min Normal
yield return 0x800FFFFFFFFFFFFFul; // -Max Subnormal
yield return 0x8000000000000001ul; // -Min Subnormal (-double.Epsilon)
yield return 0x7FEFFFFFFFFFFFFFul; // +Max Normal (double.MaxValue)
yield return 0x0010000000000000ul; // +Min Normal
yield return 0x000FFFFFFFFFFFFFul; // +Max Subnormal
yield return 0x0000000000000001ul; // +Min Subnormal (double.Epsilon)
if (!NoZeros)
{
yield return 0x8000000000000000ul; // -Zero
yield return 0x0000000000000000ul; // +Zero
}
if (!NoInfs)
{
yield return 0xFFF0000000000000ul; // -Infinity
yield return 0x7FF0000000000000ul; // +Infinity
}
if (!NoNaNs)
{
yield return 0xFFF8000000000000ul; // -QNaN (all zeros payload) (double.NaN)
yield return 0xFFF7FFFFFFFFFFFFul; // -SNaN (all ones payload)
yield return 0x7FF8000000000000ul; // +QNaN (all zeros payload) (-double.NaN) (DefaultNaN)
yield return 0x7FF7FFFFFFFFFFFFul; // +SNaN (all ones payload)
}
for (int cnt = 1; cnt <= RndCnt; cnt++)
{
ulong rnd1 = GenNormalD();
ulong rnd2 = GenSubnormalD();
yield return rnd1;
yield return rnd2;
}
}
private static IEnumerable<ulong> _GenPopCnt8B_()
{
for (ulong cnt = 0ul; cnt <= 255ul; cnt++)
{
yield return (cnt << 56) | (cnt << 48) | (cnt << 40) | (cnt << 32) |
(cnt << 24) | (cnt << 16) | (cnt << 08) | cnt;
}
}
#endregion
private const int RndCnt = 2;
private static readonly bool NoZeros = false;
private static readonly bool NoInfs = false;
private static readonly bool NoNaNs = false;
[Test, Pairwise]
public void Vabs_Vneg_V_S8_S16_S32([ValueSource("_Vabs_Vneg_V_")] uint opcode,
[Range(0u, 3u)] uint rd,
[Range(0u, 3u)] uint rm,
[ValueSource("_8B4H2S_")] [Random(RndCnt)] ulong z,
[ValueSource("_8B4H2S_")] [Random(RndCnt)] ulong b,
[Values(0u, 1u, 2u)] uint size, // <S8, S16, S32>
[Values] bool q)
{
const bool f = false;
Vabs_Vneg_V(opcode, rd, rm, z, b, size, f, q);
}
[Test, Pairwise]
public void Vabs_Vneg_V_F32([ValueSource("_Vabs_Vneg_V_")] uint opcode,
[Range(0u, 3u)] uint rd,
[Range(0u, 3u)] uint rm,
[ValueSource("_2S_F_")] ulong z,
[ValueSource("_2S_F_")] ulong b,
[Values] bool q)
{
const uint size = 0b10; // <F32>
const bool f = true;
Vabs_Vneg_V(opcode, rd, rm, z, b, size, f, q);
}
private void Vabs_Vneg_V(uint opcode, uint rd, uint rm, ulong z, ulong b, uint size, bool f, bool q)
{
if (f)
{
opcode |= 1 << 10;
}
if (q)
{
opcode |= 1 << 6;
rd >>= 1; rd <<= 1;
rm >>= 1; rm <<= 1;
}
opcode |= ((rd & 0xf) << 12) | ((rd & 0x10) << 18);
opcode |= ((rm & 0xf) << 0) | ((rm & 0x10) << 1);
opcode |= (size & 0x3) << 18;
V128 v0 = MakeVectorE0E1(z, ~z);
V128 v1 = MakeVectorE0E1(b, ~b);
SingleOpcode(opcode, v0: v0, v1: v1);
CompareAgainstUnicorn();
}
[Test, Pairwise, Description("VCNT.8 D0, D0 | VCNT.8 Q0, Q0")]
public void Vcnt([Values(0u, 1u)] uint rd,
[Values(0u, 1u)] uint rm,
[ValueSource(nameof(_GenPopCnt8B_))] [Random(RndCnt)] ulong d0,
[Values] bool q)
{
ulong d1 = ~d0; // It's expensive to have a second generator.
uint opcode = 0xf3b00500u; // VCNT.8 D0, D0
if (q)
{
opcode |= 1u << 6;
rd &= ~1u;
rm &= ~1u;
}
opcode |= ((rd & 0xf) << 12) | ((rd & 0x10) << 18);
opcode |= ((rm & 0xf) << 0) | ((rm & 0x10) << 1);
V128 v0 = MakeVectorE0E1(d0, d1);
SingleOpcode(opcode, v0: v0);
CompareAgainstUnicorn();
}
#endif
}
}