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0679084f11
* net5.0 * CPU (A64): Add FP16/FP32 fast paths (F16C Intrinsics) for Fcvt_S, Fcvtl_V & Fcvtn_V Instructions. Switch to .NET 5.0. Nits. Tests performed successfully in both debug and release mode (for all instructions involved). * Address comment. * Update appveyor.yml * Revert "Update appveyor.yml" This reverts commit 27cdd59e8b90e227e6924d9c162af26c00a89013. * Remove Assembler CpuId. * Update appveyor.yml * Address comment.
63 lines
No EOL
2.2 KiB
C#
63 lines
No EOL
2.2 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 ecx, int edx) = X86Base.CpuId(0x00000001, 0x00000000);
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FeatureInfoEdx = (FeatureFlagsEdx)edx;
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FeatureInfoEcx = (FeatureFlagsEcx)ecx;
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}
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[Flags]
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public enum FeatureFlagsEdx
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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 FeatureFlagsEcx
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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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public static FeatureFlagsEdx FeatureInfoEdx { get; }
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public static FeatureFlagsEcx FeatureInfoEcx { get; }
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public static bool SupportsSse => FeatureInfoEdx.HasFlag(FeatureFlagsEdx.Sse);
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public static bool SupportsSse2 => FeatureInfoEdx.HasFlag(FeatureFlagsEdx.Sse2);
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public static bool SupportsSse3 => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Sse3);
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public static bool SupportsPclmulqdq => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Pclmulqdq);
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public static bool SupportsSsse3 => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Ssse3);
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public static bool SupportsFma => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Fma);
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public static bool SupportsSse41 => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Sse41);
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public static bool SupportsSse42 => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Sse42);
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public static bool SupportsPopcnt => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Popcnt);
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public static bool SupportsAesni => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Aes);
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public static bool SupportsAvx => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.Avx);
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public static bool SupportsF16c => FeatureInfoEcx.HasFlag(FeatureFlagsEcx.F16c);
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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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} |