glibc/sysdeps/x86_64/tst-avx512-aux.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

49 lines
1.6 KiB
C

/* Test case for preserved AVX512 registers in dynamic linker,
-mavx512 part.
Copyright (C) 2017-2022 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
<https://www.gnu.org/licenses/>. */
#include <immintrin.h>
#include <stdlib.h>
#include <string.h>
int
tst_avx512_aux (void)
{
#ifdef __AVX512F__
extern __m512i avx512_test (__m512i, __m512i, __m512i, __m512i,
__m512i, __m512i, __m512i, __m512i);
__m512i zmm0 = _mm512_set1_epi32 (0);
__m512i zmm1 = _mm512_set1_epi32 (1);
__m512i zmm2 = _mm512_set1_epi32 (2);
__m512i zmm3 = _mm512_set1_epi32 (3);
__m512i zmm4 = _mm512_set1_epi32 (4);
__m512i zmm5 = _mm512_set1_epi32 (5);
__m512i zmm6 = _mm512_set1_epi32 (6);
__m512i zmm7 = _mm512_set1_epi32 (7);
__m512i ret = avx512_test (zmm0, zmm1, zmm2, zmm3,
zmm4, zmm5, zmm6, zmm7);
zmm0 = _mm512_set1_epi32 (0x12349876);
if (memcmp (&zmm0, &ret, sizeof (ret)))
abort ();
return 0;
#else /* __AVX512F__ */
return 77;
#endif /* __AVX512F__ */
}