1 /* Test case for preserved AVX512 registers in dynamic linker.
2 Copyright (C) 2017-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
21 int tst_avx512_aux (void);
27 unsigned int eax
, ebx
, ecx
, edx
;
29 if (__get_cpuid (1, &eax
, &ebx
, &ecx
, &edx
) == 0
30 || (ecx
& (bit_AVX
| bit_OSXSAVE
)) != (bit_AVX
| bit_OSXSAVE
))
33 __cpuid_count (7, 0, eax
, ebx
, ecx
, edx
);
34 if (!(ebx
& bit_AVX512F
))
37 asm ("xgetbv" : "=a" (eax
), "=d" (edx
) : "c" (0));
39 /* Verify that ZMM, YMM and XMM states are enabled. */
40 return (eax
& 0xe6) == 0xe6;
49 /* Run AVX512 test only if AVX512 is supported. */
50 if (avx512_enabled ())
51 return tst_avx512_aux ();
56 #define TEST_FUNCTION do_test ()
57 #include "../../test-skeleton.c"