glibc/sysdeps/x86_64/fpu/multiarch/s_floor-avx.S
Sunil K Pandey 9f78a7c1d0 x86_64: Exclude SSE, AVX and FMA4 variants in libm multiarch
When glibc is built with ISA level 3 or higher by default, the resulting
glibc binaries won't run on SSE or FMA4 processors.  Exclude SSE, AVX and
FMA4 variants in libm multiarch when ISA level 3 or higher is enabled by
default.

When glibc is built with ISA level 2 enabled by default, only keep SSE4.1
variant.

Fixes BZ 31335.

NB: elf/tst-valgrind-smoke test fails with ISA level 4, because valgrind
doesn't support AVX512 instructions:

https://bugs.kde.org/show_bug.cgi?id=383010

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2024-02-25 13:20:51 -08:00

29 lines
988 B
ArmAsm

/* AVX implementation of floor function.
Copyright (C) 2024 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 <sysdep.h>
#include <libm-alias-double.h>
.text
ENTRY(__floor)
vroundsd $9, %xmm0, %xmm0, %xmm0
ret
END(__floor)
libm_alias_double (__floor, floor)