From 2bd00179885928fd95fcabfafc50e7b5c6e660d2 Mon Sep 17 00:00:00 2001 From: Wilco Dijkstra Date: Tue, 17 Oct 2023 16:54:21 +0100 Subject: AArch64: Add support for MOPS memcpy/memmove/memset Add support for MOPS in cpu_features and INIT_ARCH. Add ifuncs using MOPS for memcpy, memmove and memset (use .inst for now so it works with all binutils versions without needing complex configure and conditional compilation). Reviewed-by: Szabolcs Nagy --- sysdeps/aarch64/multiarch/memset_mops.S | 38 +++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 sysdeps/aarch64/multiarch/memset_mops.S (limited to 'sysdeps/aarch64/multiarch/memset_mops.S') diff --git a/sysdeps/aarch64/multiarch/memset_mops.S b/sysdeps/aarch64/multiarch/memset_mops.S new file mode 100644 index 0000000000..ca820b8636 --- /dev/null +++ b/sysdeps/aarch64/multiarch/memset_mops.S @@ -0,0 +1,38 @@ +/* Optimized memset for MOPS. + 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 + +/* Assumptions: + * + * AArch64, MOPS. + * + */ + +ENTRY (__memset_mops) + PTR_ARG (0) + SIZE_ARG (2) + + mov x3, x0 + .inst 0x19c10443 /* setp [x3]!, x2!, x1 */ + .inst 0x19c14443 /* setm [x3]!, x2!, x1 */ + .inst 0x19c18443 /* sete [x3]!, x2!, x1 */ + ret + +END (__memset_mops) -- cgit 1.4.1