From 8944ba483f9215a4606430b7717f056049863032 Mon Sep 17 00:00:00 2001 From: dengjianbo Date: Tue, 15 Aug 2023 09:11:53 +0800 Subject: Loongarch: Add ifunc support for memcpy{aligned, unaligned, lsx, lasx} and memmove{aligned, unaligned, lsx, lasx} These implementations improve the time to copy data in the glibc microbenchmark as below: memcpy-lasx reduces the runtime about 8%-76% memcpy-lsx reduces the runtime about 8%-72% memcpy-unaligned reduces the runtime of unaligned data copying up to 40% memcpy-aligned reduece the runtime of unaligned data copying up to 25% memmove-lasx reduces the runtime about 20%-73% memmove-lsx reduces the runtime about 50% memmove-unaligned reduces the runtime of unaligned data moving up to 40% memmove-aligned reduces the runtime of unaligned data moving up to 25% --- sysdeps/loongarch/lp64/multiarch/ifunc-lasx.h | 45 +++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 sysdeps/loongarch/lp64/multiarch/ifunc-lasx.h (limited to 'sysdeps/loongarch/lp64/multiarch/ifunc-lasx.h') diff --git a/sysdeps/loongarch/lp64/multiarch/ifunc-lasx.h b/sysdeps/loongarch/lp64/multiarch/ifunc-lasx.h new file mode 100644 index 0000000000..3be67da611 --- /dev/null +++ b/sysdeps/loongarch/lp64/multiarch/ifunc-lasx.h @@ -0,0 +1,45 @@ +/* Common definition for ifunc selection implementation. + All versions must be listed in ifunc-impl-list.c. + Copyright (C) 2023 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 + . */ + +#include +#include + +#if !defined __loongarch_soft_float +extern __typeof (REDIRECT_NAME) OPTIMIZE (lasx) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (lsx) attribute_hidden; +#endif + +extern __typeof (REDIRECT_NAME) OPTIMIZE (aligned) attribute_hidden; +extern __typeof (REDIRECT_NAME) OPTIMIZE (unaligned) attribute_hidden; + +static inline void * +IFUNC_SELECTOR (void) +{ +#if !defined __loongarch_soft_float + if (SUPPORT_LASX) + return OPTIMIZE (lasx); + else if (SUPPORT_LSX) + return OPTIMIZE (lsx); + else +#endif + if (SUPPORT_UAL) + return OPTIMIZE (unaligned); + else + return OPTIMIZE (aligned); +} -- cgit 1.4.1