89 lines
No EOL
3.2 KiB
C#
89 lines
No EOL
3.2 KiB
C#
using System;
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using System.Runtime.Intrinsics.X86;
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namespace ARMeilleure.CodeGen.X86
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{
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static class HardwareCapabilities
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{
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static HardwareCapabilities()
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{
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if (!X86Base.IsSupported)
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{
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return;
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}
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(int maxNum, _, _, _) = X86Base.CpuId(0x00000000, 0x00000000);
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(_, _, int ecx1, int edx1) = X86Base.CpuId(0x00000001, 0x00000000);
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FeatureInfo1Edx = (FeatureFlags1Edx)edx1;
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FeatureInfo1Ecx = (FeatureFlags1Ecx)ecx1;
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if (maxNum >= 7)
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{
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(_, int ebx7, int ecx7, _) = X86Base.CpuId(0x00000007, 0x00000000);
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FeatureInfo7Ebx = (FeatureFlags7Ebx)ebx7;
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FeatureInfo7Ecx = (FeatureFlags7Ecx)ecx7;
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}
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}
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[Flags]
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public enum FeatureFlags1Edx
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{
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Sse = 1 << 25,
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Sse2 = 1 << 26
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}
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[Flags]
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public enum FeatureFlags1Ecx
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{
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Sse3 = 1 << 0,
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Pclmulqdq = 1 << 1,
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Ssse3 = 1 << 9,
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Fma = 1 << 12,
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Sse41 = 1 << 19,
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Sse42 = 1 << 20,
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Popcnt = 1 << 23,
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Aes = 1 << 25,
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Avx = 1 << 28,
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F16c = 1 << 29
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}
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[Flags]
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public enum FeatureFlags7Ebx
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{
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Avx2 = 1 << 5,
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Sha = 1 << 29
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}
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[Flags]
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public enum FeatureFlags7Ecx
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{
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Gfni = 1 << 8,
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}
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public static FeatureFlags1Edx FeatureInfo1Edx { get; }
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public static FeatureFlags1Ecx FeatureInfo1Ecx { get; }
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public static FeatureFlags7Ebx FeatureInfo7Ebx { get; } = 0;
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public static FeatureFlags7Ecx FeatureInfo7Ecx { get; } = 0;
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public static bool SupportsSse => FeatureInfo1Edx.HasFlag(FeatureFlags1Edx.Sse);
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public static bool SupportsSse2 => FeatureInfo1Edx.HasFlag(FeatureFlags1Edx.Sse2);
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public static bool SupportsSse3 => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Sse3);
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public static bool SupportsPclmulqdq => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Pclmulqdq);
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public static bool SupportsSsse3 => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Ssse3);
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public static bool SupportsFma => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Fma);
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public static bool SupportsSse41 => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Sse41);
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public static bool SupportsSse42 => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Sse42);
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public static bool SupportsPopcnt => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Popcnt);
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public static bool SupportsAesni => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Aes);
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public static bool SupportsAvx => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.Avx);
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public static bool SupportsAvx2 => FeatureInfo7Ebx.HasFlag(FeatureFlags7Ebx.Avx2) && SupportsAvx;
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public static bool SupportsF16c => FeatureInfo1Ecx.HasFlag(FeatureFlags1Ecx.F16c);
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public static bool SupportsSha => FeatureInfo7Ebx.HasFlag(FeatureFlags7Ebx.Sha);
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public static bool SupportsGfni => FeatureInfo7Ecx.HasFlag(FeatureFlags7Ecx.Gfni);
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public static bool ForceLegacySse { get; set; }
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public static bool SupportsVexEncoding => SupportsAvx && !ForceLegacySse;
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}
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} |