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Add SSE4.2 support for strcasecmp and strncasecmp on x86-32

This commit is contained in:
Ulrich Drepper 2011-11-14 18:24:35 -05:00
parent 76e3966e9e
commit 6abf346582
9 changed files with 485 additions and 90 deletions
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14
ChangeLog
View File

@ -1,3 +1,17 @@
2011-11-14 Ulrich Drepper <drepper@gmail.com>
* sysdeps/i386/i686/multiarch/Makefile [subdir=string]
(sysdep_routines): Add strcasecmp_l-sse4 and strncase_l-sse4.
* sysdeps/i386/i686/multiarch/strcasecmp.S: Re-enable SSE4.2 code.
* sysdeps/i386/i686/multiarch/strcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strncase.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp-sse4.S: Change to allow reuse
to compile strcasecmp and strncasecmp.
* sysdeps/i386/i686/multiarch/strcasecmp_l-sse4.S: New file.
* sysdeps/i386/i686/multiarch/strncase_l-sse4.S: New file.
* sysdeps/i386/i686/multiarch/strcmp-ssse3.S: Use L macro consistently.
2011-11-13 Ulrich Drepper <drepper@gmail.com>
* sysdeps/i386/i686/multiarch/Makefile [subdir=string]: Add

3
sysdeps/i386/i686/multiarch/Makefile
View File

@ -21,7 +21,8 @@ sysdep_routines += bzero-sse2 memset-sse2 memcpy-ssse3 mempcpy-ssse3 \
rawmemchr-sse2 rawmemchr-sse2-bsf \
strnlen-sse2 strnlen-c \
strcasecmp_l-c strcasecmp-c strcasecmp_l-ssse3 \
strncase_l-c strncase-c strncase_l-ssse3
strncase_l-c strncase-c strncase_l-ssse3 \
strcasecmp_l-sse4 strncase_l-sse4
ifeq (yes,$(config-cflags-sse4))
sysdep_routines += strcspn-c strpbrk-c strspn-c strstr-c strcasestr-c
CFLAGS-varshift.c += -msse4

3
sysdeps/i386/i686/multiarch/strcasecmp.S
View File

@ -36,12 +36,9 @@ ENTRY(__strcasecmp)
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)

2
sysdeps/i386/i686/multiarch/strcasecmp_l-sse4.S Normal file
View File

@ -0,0 +1,2 @@
#define USE_AS_STRCASECMP_L 1
#include "strcmp-sse4.S"

536
sysdeps/i386/i686/multiarch/strcmp-sse4.S
View File

@ -1,5 +1,5 @@
/* strcmp with SSE4.2
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.
@ -34,33 +34,156 @@
#define PUSH(REG) pushl REG; CFI_PUSH (REG)
#define POP(REG) popl REG; CFI_POP (REG)
#ifndef USE_AS_STRNCMP
# ifndef STRCMP
# define STRCMP __strcmp_sse4_2
# endif
# define STR1 4
# define STR2 STR1+4
# define RETURN ret; .p2align 4
#else
#ifdef USE_AS_STRNCMP
# ifndef STRCMP
# define STRCMP __strncmp_sse4_2
# endif
# define STR1 8
# define STR2 STR1+4
# define CNT STR2+4
# define RETURN POP (%ebp); ret; .p2align 4; CFI_PUSH (%ebp)
# define RETURN POP (REM); ret; .p2align 4; CFI_PUSH (REM)
# define REM %ebp
#elif defined USE_AS_STRCASECMP_L
# include "locale-defines.h"
# ifndef STRCMP
# define STRCMP __strcasecmp_l_sse4_2
# endif
# define STR1 12
# define STR2 STR1+4
# define LOCALE 12 /* Loaded before the adjustement. */
# ifdef PIC
# define RETURN POP (%edi); POP (%ebx); ret; \
.p2align 4; CFI_PUSH (%ebx); CFI_PUSH (%edi)
# else
# define RETURN POP (%edi); ret; .p2align 4; CFI_PUSH (%edi)
# endif
# define NONASCII __strcasecmp_nonascii
#elif defined USE_AS_STRNCASECMP_L
# include "locale-defines.h"
# ifndef STRCMP
# define STRCMP __strncasecmp_l_sse4_2
# endif
# define STR1 16
# define STR2 STR1+4
# define CNT STR2+4
# define LOCALE 16 /* Loaded before the adjustement. */
# ifdef PIC
# define RETURN POP (%edi); POP (REM); POP (%ebx); ret; \
.p2align 4; \
CFI_PUSH (%ebx); CFI_PUSH (REM); CFI_PUSH (%edi)
# else
# define RETURN POP (%edi); POP (REM); ret; \
.p2align 4; CFI_PUSH (REM); CFI_PUSH (%edi)
# endif
# define REM %ebp
# define NONASCII __strncasecmp_nonascii
#else
# ifndef STRCMP
# define STRCMP __strcmp_sse4_2
# endif
# define STR1 4
# define STR2 STR1+4
# define RETURN ret; .p2align 4
#endif
.section .text.sse4.2,"ax",@progbits
ENTRY (STRCMP)
#ifdef USE_AS_STRNCMP
PUSH (%ebp)
#ifdef USE_AS_STRCASECMP_L
ENTRY (__strcasecmp_sse4_2)
# ifdef PIC
PUSH (%ebx)
call __i686.get_pc_thunk.bx
addl $_GLOBAL_OFFSET_TABLE_, %ebx
movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
# else
movl __libc_tsd_LOCALE@NTPOFF, %eax
# endif
movl %gs:(%eax), %eax
# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
# else
movl (%eax), %eax
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
jne __strcasecmp_nonascii
jmp L(ascii)
END (__strcasecmp_sse4_2)
#endif
#ifdef USE_AS_STRNCASECMP_L
ENTRY (__strncasecmp_sse4_2)
# ifdef PIC
PUSH (%ebx)
call __i686.get_pc_thunk.bx
addl $_GLOBAL_OFFSET_TABLE_, %ebx
movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
# else
movl __libc_tsd_LOCALE@NTPOFF, %eax
# endif
movl %gs:(%eax), %eax
# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
# else
movl (%eax), %eax
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
jne __strncasecmp_nonascii
jmp L(ascii)
END (__strncasecmp_sse4_2)
#endif
ENTRY (STRCMP)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movl LOCALE(%esp), %eax
# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
# else
movl (%eax), %eax
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
jne NONASCII
# ifdef PIC
PUSH (%ebx)
call __i686.get_pc_thunk.bx
addl $_GLOBAL_OFFSET_TABLE_, %ebx
# endif
L(ascii):
.section .rodata.cst16,"aM",@progbits,16
.align 16
.Lbelowupper:
.quad 0x4040404040404040
.quad 0x4040404040404040
.Ltopupper:
.quad 0x5b5b5b5b5b5b5b5b
.quad 0x5b5b5b5b5b5b5b5b
.Ltouppermask:
.quad 0x2020202020202020
.quad 0x2020202020202020
.previous
# ifdef PIC
# define UCLOW_reg .Lbelowupper@GOTOFF(%ebx)
# define UCHIGH_reg .Ltopupper@GOTOFF(%ebx)
# define LCQWORD_reg .Ltouppermask@GOTOFF(%ebx)
# else
# define UCLOW_reg .Lbelowupper
# define UCHIGH_reg .Ltopupper
# define LCQWORD_reg .Ltouppermask
# endif
#endif
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
PUSH (REM)
#endif
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
PUSH (%edi)
#endif
mov STR1(%esp), %edx
mov STR2(%esp), %eax
#ifdef USE_AS_STRNCMP
movl CNT(%esp), %ebp
test %ebp, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
movl CNT(%esp), REM
test REM, REM
je L(eq)
#endif
mov %dx, %cx
@ -72,10 +195,40 @@ ENTRY (STRCMP)
and $0xfff, %ecx
cmp $0xff0, %ecx
ja L(first4bytes)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# define TOLOWER(reg1, reg2) \
movdqa reg1, %xmm3; \
movdqa UCHIGH_reg, %xmm4; \
movdqa reg2, %xmm5; \
movdqa UCHIGH_reg, %xmm6; \
pcmpgtb UCLOW_reg, %xmm3; \
pcmpgtb reg1, %xmm4; \
pcmpgtb UCLOW_reg, %xmm5; \
pcmpgtb reg2, %xmm6; \
pand %xmm4, %xmm3; \
pand %xmm6, %xmm5; \
pand LCQWORD_reg, %xmm3; \
pand LCQWORD_reg, %xmm5; \
por %xmm3, reg1; \
por %xmm5, reg2
movdqu (%eax), %xmm1
TOLOWER (%xmm2, %xmm1)
movd %xmm2, %ecx
movd %xmm1, %edi
movdqa %xmm2, %xmm3
movdqa %xmm1, %xmm4
cmpl %edi, %ecx
#else
# define TOLOWER(reg1, reg)
movd %xmm2, %ecx
cmp (%eax), %ecx
#endif
jne L(less4bytes)
#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
movdqu (%eax), %xmm1
#endif
pxor %xmm2, %xmm1
pxor %xmm0, %xmm0
ptest %xmm1, %xmm0
@ -84,113 +237,210 @@ ENTRY (STRCMP)
ptest %xmm2, %xmm0
jnc L(less16bytes)
#ifdef USE_AS_STRNCMP
sub $16, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $16, REM
jbe L(eq)
#endif
add $16, %edx
add $16, %eax
L(first4bytes):
movzbl (%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl (%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, (%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $1, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $1, REM
je L(eq)
#endif
movzbl 1(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 1(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 1(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $2, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $2, REM
je L(eq)
#endif
movzbl 2(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 2(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 2(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $3, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $3, REM
je L(eq)
#endif
movzbl 3(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 3(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 3(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $4, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $4, REM
je L(eq)
#endif
movzbl 4(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 4(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 4(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $5, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $5, REM
je L(eq)
#endif
movzbl 5(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 5(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 5(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $6, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $6, REM
je L(eq)
#endif
movzbl 6(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 6(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 6(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $7, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $7, REM
je L(eq)
#endif
movzbl 7(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 7(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 7(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
sub $8, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $8, REM
je L(eq)
#endif
add $8, %eax
add $8, %edx
PUSH (%ebx)
#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
PUSH (%edi)
#endif
PUSH (%esi)
#ifdef USE_AS_STRNCMP
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cfi_remember_state
#endif
mov %edx, %edi
mov %eax, %esi
xorl %eax, %eax
L(check_offset):
movl %edi, %ebx
movl %edi, %edx
movl %esi, %ecx
andl $0xfff, %ebx
andl $0xfff, %edx
andl $0xfff, %ecx
cmpl %ebx, %ecx
cmovl %ebx, %ecx
cmpl %edx, %ecx
cmovl %edx, %ecx
lea -0xff0(%ecx), %edx
sub %edx, %edi
sub %edx, %esi
@ -199,11 +449,12 @@ L(check_offset):
L(loop):
movdqu (%esi,%edx), %xmm2
movdqu (%edi,%edx), %xmm1
TOLOWER (%xmm2, %xmm1)
pcmpistri $0x1a, %xmm2, %xmm1
jbe L(end)
#ifdef USE_AS_STRNCMP
sub $16, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $16, REM
jbe L(more16byteseq)
#endif
@ -211,13 +462,22 @@ L(loop):
jle L(loop)
L(crosspage):
movzbl (%edi,%edx), %eax
movzbl (%esi,%edx), %ebx
subl %ebx, %eax
movzbl (%esi,%edx), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
# endif
#endif
subl %ecx, %eax
jne L(ret)
testl %ebx, %ebx
testl %ecx, %ecx
je L(ret)
#ifdef USE_AS_STRNCMP
sub $1, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $1, REM
jbe L(more16byteseq)
#endif
inc %edx
@ -230,30 +490,44 @@ L(crosspage):
.p2align 4
L(end):
jnc L(ret)
#ifdef USE_AS_STRNCMP
sub %ecx, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub %ecx, REM
jbe L(more16byteseq)
#endif
lea (%ecx,%edx), %ebx
movzbl (%edi,%ebx), %eax
movzbl (%esi,%ebx), %ecx
lea (%ecx,%edx), %ecx
movzbl (%edi,%ecx), %eax
movzbl (%esi,%ecx), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
# endif
#endif
subl %ecx, %eax
L(ret):
POP (%esi)
POP (%edi)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
POP (REM)
#endif
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# ifdef PIC
POP (%ebx)
#ifdef USE_AS_STRNCMP
POP (%ebp)
# endif
#endif
ret
.p2align 4
#ifdef USE_AS_STRNCMP
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cfi_restore_state
L(more16byteseq):
POP (%esi)
# ifdef USE_AS_STRNCMP
POP (%edi)
POP (%ebx)
# endif
#endif
L(eq):
xorl %eax, %eax
@ -269,27 +543,45 @@ L(neq_bigger):
L(less16bytes):
add $0xfefefeff, %ecx
jnc L(less4bytes)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movd %xmm3, %edi
xor %edi, %ecx
#else
xor (%edx), %ecx
#endif
or $0xfefefeff, %ecx
add $1, %ecx
jnz L(less4bytes)
#ifdef USE_AS_STRNCMP
cmp $4, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $4, REM
jbe L(eq)
#endif
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
psrldq $4, %xmm3
psrldq $4, %xmm4
movd %xmm3, %ecx
movd %xmm4, %edi
cmp %edi, %ecx
mov %ecx, %edi
#else
mov 4(%edx), %ecx
cmp 4(%eax), %ecx
#endif
jne L(more4bytes)
add $0xfefefeff, %ecx
jnc L(more4bytes)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
xor %edi, %ecx
#else
xor 4(%edx), %ecx
#endif
or $0xfefefeff, %ecx
add $1, %ecx
jnz L(more4bytes)
#ifdef USE_AS_STRNCMP
sub $8, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $8, REM
jbe L(eq)
#endif
@ -298,80 +590,176 @@ L(less16bytes):
L(less4bytes):
movzbl (%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl (%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, (%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $1, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $1, REM
je L(eq)
#endif
movzbl 1(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 1(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 1(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $2, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $2, REM
je L(eq)
#endif
movzbl 2(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 2(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 2(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $3, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $3, REM
je L(eq)
#endif
movzbl 3(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 3(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 3(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
L(more4bytes):
#ifdef USE_AS_STRNCMP
cmp $4, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $4, REM
je L(eq)
#endif
movzbl 4(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 4(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 4(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $5, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $5, REM
je L(eq)
#endif
movzbl 5(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 5(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 5(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $6, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $6, REM
je L(eq)
#endif
movzbl 6(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 6(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 6(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#ifdef USE_AS_STRNCMP
cmp $7, %ebp
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $7, REM
je L(eq)
#endif
movzbl 7(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 7(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 7(%edx)
#endif
jne L(neq)
jmp L(eq)

6
sysdeps/i386/i686/multiarch/strcmp-ssse3.S
View File

@ -123,7 +123,7 @@ ENTRY (__strcasecmp_ssse3)
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
jne __strcasecmp_nonascii
jmp .Lascii
jmp L(ascii)
END (__strcasecmp_ssse3)
#endif
@ -145,7 +145,7 @@ ENTRY (__strncasecmp_ssse3)
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
jne __strncasecmp_nonascii
jmp .Lascii
jmp L(ascii)
END (__strncasecmp_ssse3)
#endif
@ -165,7 +165,7 @@ ENTRY (STRCMP)
call __i686.get_pc_thunk.bx
addl $_GLOBAL_OFFSET_TABLE_, %ebx
# endif
.Lascii:
L(ascii):
.section .rodata.cst16,"aM",@progbits,16
.align 16
.Lbelowupper:

6
sysdeps/i386/i686/multiarch/strcmp.S
View File

@ -76,12 +76,9 @@ 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)
@ -98,12 +95,9 @@ 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

3
sysdeps/i386/i686/multiarch/strncase.S
View File

@ -36,12 +36,9 @@ ENTRY(__strncasecmp)
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)

2
sysdeps/i386/i686/multiarch/strncase_l-sse4.S Normal file
View File

@ -0,0 +1,2 @@
#define USE_AS_STRNCASECMP_L 1
#include "strcmp-sse4.S"