diff options
Diffstat (limited to 'sysdeps/i386/multiarch/memrchr.S')
| -rw-r--r-- | sysdeps/i386/multiarch/memrchr.S | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/i386/multiarch/memrchr.S b/sysdeps/i386/multiarch/memrchr.S new file mode 100644 index 0000000000..be8deae4e6 --- /dev/null +++ b/sysdeps/i386/multiarch/memrchr.S @@ -0,0 +1,45 @@ +/* Multiple versions of memrchr + All versions must be listed in ifunc-impl-list.c. + Copyright (C) 2011-2015 Free Software Foundation, Inc. + Contributed by Intel Corporation. + 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 + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <init-arch.h> + +#if IS_IN (libc) + .text +ENTRY(__memrchr) + .type __memrchr, @gnu_indirect_function + LOAD_GOT_AND_RTLD_GLOBAL_RO + HAS_CPU_FEATURE (SSE2) + jz 2f + HAS_ARCH_FEATURE (Slow_BSF) + jz 3f + + LOAD_FUNC_GOT_EAX (__memrchr_sse2) + ret + +2: LOAD_FUNC_GOT_EAX (__memrchr_i386) + ret + +3: LOAD_FUNC_GOT_EAX (__memrchr_sse2_bsf) + ret +END(__memrchr) + +weak_alias(__memrchr, memrchr) +#endif |