mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 05:20:06 +00:00
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
|
/* Copyright (C) 2012-2014 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/>. */
|
||
|
|
|
||
|
|
/* Test case for x86-64 preserved registers in dynamic linker. */
|
||
|
|
|
||
|
|
#ifdef __AVX512F__
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <cpuid.h>
|
||
|
|
#include <immintrin.h>
|
||
|
|
|
||
|
|
static int
|
||
|
|
avx512_enabled (void)
|
||
|
|
{
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
extern __m512i audit_test (__m512i, __m512i, __m512i, __m512i,
|
||
|
|
__m512i, __m512i, __m512i, __m512i);
|
||
|
|
int
|
||
|
|
main (void)
|
||
|
|
{
|
||
|
|
/* Run AVX512 test only if AVX512 is supported. */
|
||
|
|
if (avx512_enabled ())
|
||
|
|
{
|
||
|
|
__m512i zmm = _mm512_setzero_si512 ();
|
||
|
|
__m512i ret = audit_test (zmm, zmm, zmm, zmm, zmm, zmm, zmm, zmm);
|
||
|
|
|
||
|
|
zmm = _mm512_set1_epi64 (0x12349876);
|
||
|
|
|
||
|
|
if (memcmp (&zmm, &ret, sizeof (ret)))
|
||
|
|
abort ();
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
int
|
||
|
|
main (void)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif
|