| /* Test case for preserved AVX512 registers in dynamic linker. |
| Copyright (C) 2017-2018 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <cpuid.h> |
| |
| int tst_avx512_aux (void); |
| |
| static int |
| avx512_enabled (void) |
| { |
| #ifdef bit_AVX512F |
| unsigned int eax, ebx, ecx, edx; |
| |
| if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0 |
| || (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE)) |
| return 0; |
| |
| __cpuid_count (7, 0, eax, ebx, ecx, edx); |
| if (!(ebx & bit_AVX512F)) |
| return 0; |
| |
| asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0)); |
| |
| /* Verify that ZMM, YMM and XMM states are enabled. */ |
| return (eax & 0xe6) == 0xe6; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static int |
| do_test (void) |
| { |
| /* Run AVX512 test only if AVX512 is supported. */ |
| if (avx512_enabled ()) |
| return tst_avx512_aux (); |
| else |
| return 77; |
| } |
| |
| #define TEST_FUNCTION do_test () |
| #include "../../test-skeleton.c" |
