mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 22:30:12 +00:00
86 lines
2.4 KiB
ArmAsm
86 lines
2.4 KiB
ArmAsm
/* Multiple versions of strspn
|
|
All versions must be listed in ifunc-impl-list.c.
|
|
Copyright (C) 2009-2013 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 <config.h>
|
|
|
|
#ifdef HAVE_SSE4_SUPPORT
|
|
|
|
#include <sysdep.h>
|
|
#include <init-arch.h>
|
|
|
|
/* Define multiple versions only for the definition in libc. */
|
|
#ifndef NOT_IN_libc
|
|
# ifdef SHARED
|
|
.text
|
|
ENTRY(strspn)
|
|
.type strspn, @gnu_indirect_function
|
|
pushl %ebx
|
|
cfi_adjust_cfa_offset (4)
|
|
cfi_rel_offset (ebx, 0)
|
|
LOAD_PIC_REG(bx)
|
|
cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
|
|
jne 1f
|
|
call __init_cpu_features
|
|
1: leal __strspn_ia32@GOTOFF(%ebx), %eax
|
|
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
|
|
jz 2f
|
|
leal __strspn_sse42@GOTOFF(%ebx), %eax
|
|
2: popl %ebx
|
|
cfi_adjust_cfa_offset (-4);
|
|
cfi_restore (ebx)
|
|
ret
|
|
END(strspn)
|
|
# else
|
|
.text
|
|
ENTRY(strspn)
|
|
.type strspn, @gnu_indirect_function
|
|
cmpl $0, KIND_OFFSET+__cpu_features
|
|
jne 1f
|
|
call __init_cpu_features
|
|
1: leal __strspn_ia32, %eax
|
|
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
|
|
jz 2f
|
|
leal __strspn_sse42, %eax
|
|
2: ret
|
|
END(strspn)
|
|
# endif
|
|
|
|
# undef ENTRY
|
|
# define ENTRY(name) \
|
|
.type __strspn_ia32, @function; \
|
|
.globl __strspn_ia32; \
|
|
.p2align 4; \
|
|
__strspn_ia32: cfi_startproc; \
|
|
CALL_MCOUNT
|
|
# undef END
|
|
# define END(name) \
|
|
cfi_endproc; .size __strspn_ia32, .-__strspn_ia32
|
|
# undef libc_hidden_builtin_def
|
|
/* IFUNC doesn't work with the hidden functions in shared library since
|
|
they will be called without setting up EBX needed for PLT which is
|
|
used by IFUNC. */
|
|
# define libc_hidden_builtin_def(name) \
|
|
.globl __GI_strspn; __GI_strspn = __strspn_ia32
|
|
#endif
|
|
|
|
#endif /* HAVE_SSE4_SUPPORT */
|
|
|
|
#include "../../strspn.S"
|