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SSSE3 optimized strcasecmp and strncasecmp for x86-32

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This commit is contained in:
Ulrich Drepper 2011-11-13 09:50:13 -05:00
parent 7edb22eff5
commit 76e3966e9e
15 changed files with 1087 additions and 273 deletions
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22
ChangeLog
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@ -1,3 +1,25 @@
2011-11-13 Ulrich Drepper <drepper@gmail.com>
* sysdeps/i386/i686/multiarch/Makefile [subdir=string]: Add
locale-defines.sym to gen-as-const-headers.
(sysdep_routines): Add strcasecmp_l-c, strcasecmp-c,
strcasecmp_l-ssse3, strncase_l-c, strncase-c, and strncase_l-ssse3.
* sysdeps/i386/i686/multiarch/strcmp-ssse3.S: Change to allow reuse
to compile strcasecmp and strncasecmp.
* sysdeps/i386/i686/multiarch/strcmp.S: Allow to use for
strcasecmp_l and strncasecmp_l.
* sysdeps/i386/i686/multiarch/locale-defines.sym: New file.
* sysdeps/i386/i686/multiarch/strcasecmp-c.c: New file.
* sysdeps/i386/i686/multiarch/strcasecmp.S: New file.
* sysdeps/i386/i686/multiarch/strcasecmp_l-c.c: New file.
* sysdeps/i386/i686/multiarch/strcasecmp_l-ssse3.S: New file.
* sysdeps/i386/i686/multiarch/strcasecmp_l.S: New file.
* sysdeps/i386/i686/multiarch/strncase-c.c: New file.
* sysdeps/i386/i686/multiarch/strncase.S: New file.
* sysdeps/i386/i686/multiarch/strncase_l-c.c: New file.
* sysdeps/i386/i686/multiarch/strncase_l-ssse3.S: New file.
* sysdeps/i386/i686/multiarch/strncase_l.S: New file.
2011-11-12 Ulrich Drepper <drepper@gmail.com>
* sysdeps/unix/clock_gettime.c (clock_gettime): No need to assign

5
sysdeps/i386/i686/multiarch/Makefile
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@ -4,6 +4,7 @@ gen-as-const-headers += ifunc-defines.sym
endif
ifeq ($(subdir),string)
gen-as-const-headers += locale-defines.sym
sysdep_routines += bzero-sse2 memset-sse2 memcpy-ssse3 mempcpy-ssse3 \
memmove-ssse3 memcpy-ssse3-rep mempcpy-ssse3-rep \
memmove-ssse3-rep bcopy-ssse3 bcopy-ssse3-rep \
@ -18,7 +19,9 @@ sysdep_routines += bzero-sse2 memset-sse2 memcpy-ssse3 mempcpy-ssse3 \
memchr-sse2 memchr-sse2-bsf \
memrchr-sse2 memrchr-sse2-bsf memrchr-c \
rawmemchr-sse2 rawmemchr-sse2-bsf \
strnlen-sse2 strnlen-c
strnlen-sse2 strnlen-c \
strcasecmp_l-c strcasecmp-c strcasecmp_l-ssse3 \
strncase_l-c strncase-c strncase_l-ssse3
ifeq (yes,$(config-cflags-sse4))
sysdep_routines += strcspn-c strpbrk-c strspn-c strstr-c strcasestr-c
CFLAGS-varshift.c += -msse4

11
sysdeps/i386/i686/multiarch/locale-defines.sym Normal file
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@ -0,0 +1,11 @@
#include <locale/localeinfo.h>
#include <langinfo.h>
#include <stddef.h>
--
LOCALE_T___LOCALES offsetof (struct __locale_struct, __locales)
LC_CTYPE
_NL_CTYPE_NONASCII_CASE
LOCALE_DATA_VALUES offsetof (struct __locale_data, values)
SIZEOF_VALUES sizeof (((struct __locale_data *) 0)->values[0])

12
sysdeps/i386/i686/multiarch/strcasecmp-c.c Normal file
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@ -0,0 +1,12 @@
#include <string.h>
extern __typeof (strcasecmp) __strcasecmp_nonascii;
#define __strcasecmp __strcasecmp_nonascii
#include <string/strcasecmp.c>
strong_alias (__strcasecmp_nonascii, __strcasecmp_ia32)
/* The needs of strcasecmp in libc are minimal, no need to go through
the IFUNC. */
strong_alias (__strcasecmp_nonascii, __GI___strcasecmp)

71
sysdeps/i386/i686/multiarch/strcasecmp.S Normal file
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@ -0,0 +1,71 @@
/* Entry point for multi-version x86 strcasecmp.
Copyright (C) 2011 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <init-arch.h>
#ifdef SHARED
.text
ENTRY(__strcasecmp)
.type __strcasecmp, @gnu_indirect_function
pushl %ebx
cfi_adjust_cfa_offset (4)
cfi_rel_offset (ebx, 0)
call __i686.get_pc_thunk.bx
addl $_GLOBAL_OFFSET_TABLE_, %ebx
cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
jne 1f
call __init_cpu_features
1: leal __strcasecmp_ia32@GOTOFF(%ebx), %eax
testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __strcasecmp_ssse3@GOTOFF(%ebx), %eax
#if 0
// XXX Temporarily
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __strcasecmp_sse4_2@GOTOFF(%ebx), %eax
#endif
2: popl %ebx
cfi_adjust_cfa_offset (-4)
cfi_restore (ebx)
ret
END(__strcasecmp)
#else
.text
ENTRY(__strcasecmp)
.type __strcasecmp, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features
jne 1f
call __init_cpu_features
1: leal __strcasecmp_ia32, %eax
testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features
jz 2f
leal __strcasecmp_ssse3, %eax
#if 0
// XXX Temporarily
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
jz 2f
leal __strcasecmp_sse4_2, %eax
#endif
2: ret
END(__strcasecmp)
#endif
weak_alias (__strcasecmp, strcasecmp)

11
sysdeps/i386/i686/multiarch/strcasecmp_l-c.c Normal file
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@ -0,0 +1,11 @@
#include <string.h>
extern __typeof (strcasecmp_l) __strcasecmp_l_nonascii;
#define __strcasecmp_l __strcasecmp_l_nonascii
#define USE_IN_EXTENDED_LOCALE_MODEL 1
#include <string/strcasecmp.c>
/* The needs of strcasecmp in libc are minimal, no need to go through
the IFUNC. */
strong_alias (__strcasecmp_l_nonascii, __GI___strcasecmp_l)

2
sysdeps/i386/i686/multiarch/strcasecmp_l-ssse3.S Normal file
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@ -0,0 +1,2 @@
#define USE_AS_STRCASECMP_L 1
#include "strcmp-ssse3.S"

5
sysdeps/i386/i686/multiarch/strcasecmp_l.S Normal file
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@ -0,0 +1,5 @@
#define STRCMP __strcasecmp_l
#define USE_AS_STRCASECMP_L
#include "strcmp.S"
weak_alias (__strcasecmp_l, strcasecmp_l)

1090
sysdeps/i386/i686/multiarch/strcmp-ssse3.S
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File diff suppressed because it is too large Load diff

34
sysdeps/i386/i686/multiarch/strcmp.S
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@ -1,5 +1,5 @@
/* Multiple versions of strcmp
Copyright (C) 2010 Free Software Foundation, Inc.
Copyright (C) 2010, 2011 Free Software Foundation, Inc.
Contributed by Intel Corporation.
This file is part of the GNU C Library.
@ -21,18 +21,30 @@
#include <sysdep.h>
#include <init-arch.h>
#ifndef USE_AS_STRNCMP
# define STRCMP strcmp
# define __GI_STRCMP __GI_strcmp
# define __STRCMP_IA32 __strcmp_ia32
# define __STRCMP_SSSE3 __strcmp_ssse3
# define __STRCMP_SSE4_2 __strcmp_sse4_2
#else
#ifdef USE_AS_STRNCMP
# define STRCMP strncmp
# define __GI_STRCMP __GI_strncmp
# define __STRCMP_IA32 __strncmp_ia32
# define __STRCMP_SSSE3 __strncmp_ssse3
# define __STRCMP_SSE4_2 __strncmp_sse4_2
#elif defined USE_AS_STRCASECMP_L
# define STRCMP __strcasecmp_l
# define __GI_STRCMP __GI_strcasecmp_l
# define __STRCMP_IA32 __strcasecmp_l_ia32
# define __STRCMP_SSSE3 __strcasecmp_l_ssse3
# define __STRCMP_SSE4_2 __strcasecmp_l_sse4_2
#elif defined USE_AS_STRNCASECMP_L
# define STRCMP __strncasecmp_l
# define __GI_STRCMP __GI_strncasecmp_l
# define __STRCMP_IA32 __strncasecmp_l_ia32
# define __STRCMP_SSSE3 __strncasecmp_l_ssse3
# define __STRCMP_SSE4_2 __strncasecmp_l_sse4_2
#else
# define STRCMP strcmp
# define __GI_STRCMP __GI_strcmp
# define __STRCMP_IA32 __strcmp_ia32
# define __STRCMP_SSSE3 __strcmp_ssse3
# define __STRCMP_SSE4_2 __strcmp_sse4_2
#endif
/* Define multiple versions only for the definition in libc. Don't
@ -64,9 +76,12 @@ ENTRY(STRCMP)
testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __STRCMP_SSSE3@GOTOFF(%ebx), %eax
#if 0
// XXX Temporarily
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __STRCMP_SSE4_2@GOTOFF(%ebx), %eax
#endif
2: popl %ebx
cfi_adjust_cfa_offset (-4)
cfi_restore (ebx)
@ -83,9 +98,12 @@ ENTRY(STRCMP)
testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features
jz 2f
leal __STRCMP_SSSE3, %eax
#if 0
// XXX Temporarily
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
jz 2f
leal __STRCMP_SSE4_2, %eax
#endif
2: ret
END(STRCMP)
# endif

8
sysdeps/i386/i686/multiarch/strncase-c.c Normal file
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@ -0,0 +1,8 @@
#include <string.h>
extern __typeof (strncasecmp) __strncasecmp_nonascii;
#define __strncasecmp __strncasecmp_nonascii
#include <string/strncase.c>
strong_alias (__strncasecmp_nonascii, __strncasecmp_ia32)

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sysdeps/i386/i686/multiarch/strncase.S Normal file
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@ -0,0 +1,71 @@
/* Entry point for multi-version x86 strncasecmp.
Copyright (C) 2011 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <init-arch.h>
#ifdef SHARED
.text
ENTRY(__strncasecmp)
.type __strncasecmp, @gnu_indirect_function
pushl %ebx
cfi_adjust_cfa_offset (4)
cfi_rel_offset (ebx, 0)
call __i686.get_pc_thunk.bx
addl $_GLOBAL_OFFSET_TABLE_, %ebx
cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
jne 1f
call __init_cpu_features
1: leal __strncasecmp_ia32@GOTOFF(%ebx), %eax
testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __strncasecmp_ssse3@GOTOFF(%ebx), %eax
#if 0
// XXX Temporarily
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __strncasecmp_sse4_2@GOTOFF(%ebx), %eax
#endif
2: popl %ebx
cfi_adjust_cfa_offset (-4)
cfi_restore (ebx)
ret
END(__strncasecmp)
#else
.text
ENTRY(__strncasecmp)
.type __strncasecmp, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features
jne 1f
call __init_cpu_features
1: leal __strncasecmp_ia32, %eax
testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features
jz 2f
leal __strncasecmp_ssse3, %eax
#if 0
// XXX Temporarily
testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features
jz 2f
leal __strncasecmp_sse4_2, %eax
#endif
2: ret
END(__strncasecmp)
#endif
weak_alias (__strncasecmp, strncasecmp)

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sysdeps/i386/i686/multiarch/strncase_l-c.c Normal file
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@ -0,0 +1,11 @@
#include <string.h>
extern __typeof (strncasecmp_l) __strncasecmp_l_nonascii;
#define __strncasecmp_l __strncasecmp_l_nonascii
#define USE_IN_EXTENDED_LOCALE_MODEL 1
#include <string/strncase.c>
/* The needs of strcasecmp in libc are minimal, no need to go through
the IFUNC. */
strong_alias (__strncasecmp_l_nonascii, __GI___strncasecmp_l)

2
sysdeps/i386/i686/multiarch/strncase_l-ssse3.S Normal file
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@ -0,0 +1,2 @@
#define USE_AS_STRNCASECMP_L 1
#include "strcmp-ssse3.S"

5
sysdeps/i386/i686/multiarch/strncase_l.S Normal file
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@ -0,0 +1,5 @@
#define STRCMP __strncasecmp_l
#define USE_AS_STRNCASECMP_L
#include "strcmp.S"
weak_alias (__strncasecmp_l, strncasecmp_l)