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1/* Test case for preserved AVX512 registers in dynamic linker.
2 Copyright (C) 2012-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
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.
14
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 <http://www.gnu.org/licenses/>. */
18
19#include <cpuid.h>
20
21int tst_audit10_aux (void);
22
23static int
24avx512_enabled (void)
25{
26#ifdef bit_AVX512F
27 unsigned int eax, ebx, ecx, edx;
28
29 if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0
30 || (ecx & (bit_AVX | bit_OSXSAVE)) != (bit_AVX | bit_OSXSAVE))
31 return 0;
32
33 __cpuid_count (7, 0, eax, ebx, ecx, edx);
34 if (!(ebx & bit_AVX512F))
35 return 0;
36
37 asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0));
38
39 /* Verify that ZMM, YMM and XMM states are enabled. */
40 return (eax & 0xe6) == 0xe6;
41#else
42 return 0;
43#endif
44}
45
46static int
47do_test (void)
48{
49 /* Run AVX512 test only if AVX512 is supported. */
50 if (avx512_enabled ())
51 return tst_audit10_aux ();
52 else
53 return 77;
54}
55
56#define TEST_FUNCTION do_test ()
57#include "../../test-skeleton.c"
58

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