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/* glibc-hwcaps subdirectory test. x86_64 version.
Copyright (C) 2020-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <support/check.h>
#include <sys/param.h>
#include <sys/platform/x86.h>
extern int marker2 (void);
extern int marker3 (void);
extern int marker4 (void);
/* Return the x86-64-vN level, 1 for the baseline. */
static int
compute_level (void)
{
const struct cpu_features *cpu_features
= __x86_get_cpu_features (COMMON_CPUID_INDEX_MAX);
if (!(CPU_FEATURE_USABLE_P (cpu_features, CMPXCHG16B)
&& CPU_FEATURE_USABLE_P (cpu_features, LAHF64_SAHF64)
&& CPU_FEATURE_USABLE_P (cpu_features, POPCNT)
&& CPU_FEATURE_USABLE_P (cpu_features, MMX)
&& CPU_FEATURE_USABLE_P (cpu_features, SSE)
&& CPU_FEATURE_USABLE_P (cpu_features, SSE2)
&& CPU_FEATURE_USABLE_P (cpu_features, SSE3)
&& CPU_FEATURE_USABLE_P (cpu_features, SSSE3)
&& CPU_FEATURE_USABLE_P (cpu_features, SSE4_1)
&& CPU_FEATURE_USABLE_P (cpu_features, SSE4_2)))
return 1;
if (!(CPU_FEATURE_USABLE_P (cpu_features, AVX)
&& CPU_FEATURE_USABLE_P (cpu_features, AVX2)
&& CPU_FEATURE_USABLE_P (cpu_features, BMI1)
&& CPU_FEATURE_USABLE_P (cpu_features, BMI2)
&& CPU_FEATURE_USABLE_P (cpu_features, F16C)
&& CPU_FEATURE_USABLE_P (cpu_features, FMA)
&& CPU_FEATURE_USABLE_P (cpu_features, LZCNT)
&& CPU_FEATURE_USABLE_P (cpu_features, MOVBE)
&& CPU_FEATURE_USABLE_P (cpu_features, OSXSAVE)))
return 2;
if (!(CPU_FEATURE_USABLE_P (cpu_features, AVX512F)
&& CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)
&& CPU_FEATURE_USABLE_P (cpu_features, AVX512CD)
&& CPU_FEATURE_USABLE_P (cpu_features, AVX512DQ)
&& CPU_FEATURE_USABLE_P (cpu_features, AVX512VL)))
return 3;
return 4;
}
static int
do_test (void)
{
int level = compute_level ();
printf ("info: detected x86-64 micro-architecture level: %d\n", level);
TEST_COMPARE (marker2 (), MIN (level, 2));
TEST_COMPARE (marker3 (), MIN (level, 3));
TEST_COMPARE (marker4 (), MIN (level, 4));
return 0;
}
#include <support/test-driver.c>
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