mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 09:43:32 +08:00
e162ab2bf1
ThunderX1 and ThunderX2 have been retired for a few years now.
So let's remove the thunderx{,2} specific versions of memcpy.
The performance gain or them was for medium and large sizes
while the generic (aarch64) memcpy will handle just slightly worse.
Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Multiple versions of memcpy. AARCH64 version.
|
|
Copyright (C) 2017-2024 Free Software Foundation, Inc.
|
|
Copyright The GNU Toolchain Authors.
|
|
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/>. */
|
|
|
|
/* Define multiple versions only for the definition in libc. */
|
|
|
|
#if IS_IN (libc)
|
|
/* Redefine memcpy so that the compiler won't complain about the type
|
|
mismatch with the IFUNC selector in strong_alias, below. */
|
|
# undef memcpy
|
|
# define memcpy __redirect_memcpy
|
|
# include <string.h>
|
|
# include <init-arch.h>
|
|
|
|
extern __typeof (__redirect_memcpy) __libc_memcpy;
|
|
|
|
extern __typeof (__redirect_memcpy) __memcpy_generic attribute_hidden;
|
|
extern __typeof (__redirect_memcpy) __memcpy_a64fx attribute_hidden;
|
|
extern __typeof (__redirect_memcpy) __memcpy_sve attribute_hidden;
|
|
extern __typeof (__redirect_memcpy) __memcpy_mops attribute_hidden;
|
|
extern __typeof (__redirect_memcpy) __memcpy_oryon1 attribute_hidden;
|
|
|
|
static inline __typeof (__redirect_memcpy) *
|
|
select_memcpy_ifunc (void)
|
|
{
|
|
INIT_ARCH ();
|
|
|
|
if (mops)
|
|
return __memcpy_mops;
|
|
|
|
if (sve && HAVE_AARCH64_SVE_ASM)
|
|
{
|
|
if (IS_A64FX (midr))
|
|
return __memcpy_a64fx;
|
|
return prefer_sve_ifuncs ? __memcpy_sve : __memcpy_generic;
|
|
}
|
|
|
|
if (IS_ORYON1 (midr))
|
|
return __memcpy_oryon1;
|
|
|
|
return __memcpy_generic;
|
|
}
|
|
|
|
libc_ifunc (__libc_memcpy, select_memcpy_ifunc ());
|
|
|
|
# undef memcpy
|
|
strong_alias (__libc_memcpy, memcpy);
|
|
#endif
|