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