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Utils: Add detection for Icelake-client tier AVX-512

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- Implies support for everything that Skylake-X supports as well as AVX512IFMA, AVX512VBMI, AVX512VBMI2, AVX512VPOPCNTDQ, AVX512BITALG, AVX512VNNI, AVX512VPCLMULQDQ, AVX512GFNI, AVX512VAES
This commit is contained in:
Malcolm Jestadt 2020-08-06 15:37:10 -04:00 • committed by Megamouse
parent 96428a7555
commit f188589685
2 changed files with 18 additions and 5 deletions
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21
Utilities/sysinfo.cpp
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@ -64,6 +64,13 @@ bool utils::has_avx512()
return g_value;
}
bool utils::has_avx512_icl()
{
// Check AVX512IFMA, AVX512VBMI, AVX512VBMI2, AVX512VPOPCNTDQ, AVX512BITALG, AVX512VNNI, AVX512VPCLMULQDQ, AVX512GFNI, AVX512VAES (Icelake-client level support)
static const bool g_value = has_avx512() && (get_cpuid(7, 0)[1] & 0x00200000) == 0x00200000 && (get_cpuid(7, 0)[2] & 0x00005f42) == 0x00005f42;
return g_value;
}
bool utils::has_xop()
{
static const bool g_value = has_avx() && get_cpuid(0x80000001, 0)[2] & 0x800;
@ -145,12 +152,16 @@ std::string utils::get_system_info()
{
result += " | AVX";
if (has_avx2())
{
result += '+';
}
if (has_avx512())
{
result += "-512";
if (has_avx512_icl())
{
result += '+';
}
}
else if (has_avx2())
{
result += '+';
}

2
Utilities/sysinfo.h
View file

@ -43,6 +43,8 @@ namespace utils
bool has_avx512();
bool has_avx512_icl();
bool has_xop();
bool has_clwb();