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bionic/libc/arch-x86/string/ssse3-memcmp-atom.S
Liubov Dmitrieva 0a490665a3 bionic/x86: Optimization for string routines 
Optimized strcpy, strcat,
strncpy, strncat, strlcpy, strlcat,
memchr, memrchr, strchr, strrchr, index,
strnlen, strlen, wcslen, wmemcmp, wcscmp,
wcschr, wcsrchr, wcscpy, wcscat

Change-Id: I82b29132edf9a2e144e0bb3ee4ff5217df8d2a6d
Signed-off-by: Liubov Dmitrieva <liubov.dmitrieva@intel.com>
2013-05-31 13:37:03 +04:00

2211 lines
37 KiB
ArmAsm
Raw Blame History

/*
Copyright (c) 2010, 2011 Intel Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef L
# define L(label) .L##label
#endif
#ifndef cfi_startproc
# define cfi_startproc .cfi_startproc
#endif
#ifndef cfi_endproc
# define cfi_endproc .cfi_endproc
#endif
#ifndef cfi_rel_offset
# define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
#endif
#ifndef cfi_restore
# define cfi_restore(reg) .cfi_restore reg
#endif
#ifndef cfi_adjust_cfa_offset
# define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
#endif
#ifndef cfi_remember_state
# define cfi_remember_state .cfi_remember_state
#endif
#ifndef cfi_restore_state
# define cfi_restore_state .cfi_restore_state
#endif
#ifndef ENTRY
# define ENTRY(name) \
.type name, @function; \
.globl name; \
.p2align 4; \
name: \
cfi_startproc
#endif
#ifndef END
# define END(name) \
cfi_endproc; \
.size name, .-name
#endif
#ifndef MEMCMP
# define MEMCMP memcmp
#endif
#define CFI_PUSH(REG) \
cfi_adjust_cfa_offset (4); \
cfi_rel_offset (REG, 0)
#define CFI_POP(REG) \
cfi_adjust_cfa_offset (-4); \
cfi_restore (REG)
#define PUSH(REG) pushl REG; CFI_PUSH (REG)
#define POP(REG) popl REG; CFI_POP (REG)
#define PARMS 4
#define BLK1 PARMS
#define BLK2 BLK1+4
#define LEN BLK2+4
#define RETURN_END POP (%edi); POP (%esi); POP (%ebx); ret
#define RETURN RETURN_END; cfi_restore_state; cfi_remember_state
/* Warning!
wmemcmp has to use SIGNED comparison for elements.
memcmp has to use UNSIGNED comparison for elemnts.
*/
.text
ENTRY (MEMCMP)
movl LEN(%esp), %ecx
#ifdef USE_AS_WMEMCMP
shl $2, %ecx
jz L(zero)
#endif
movl BLK1(%esp), %eax
cmp $48, %ecx
movl BLK2(%esp), %edx
jae L(48bytesormore)
#ifndef USE_AS_WMEMCMP
cmp $1, %ecx
jbe L(less1bytes)
#endif
PUSH (%ebx)
add %ecx, %edx
add %ecx, %eax
jmp L(less48bytes)
CFI_POP (%ebx)
#ifndef USE_AS_WMEMCMP
.p2align 4
L(less1bytes):
jb L(zero)
movb (%eax), %cl
cmp (%edx), %cl
je L(zero)
mov $1, %eax
ja L(1bytesend)
neg %eax
L(1bytesend):
ret
#endif
.p2align 4
L(zero):
xor %eax, %eax
ret
.p2align 4
L(48bytesormore):
PUSH (%ebx)
PUSH (%esi)
PUSH (%edi)
cfi_remember_state
movdqu (%eax), %xmm3
movdqu (%edx), %xmm0
movl %eax, %edi
movl %edx, %esi
pcmpeqb %xmm0, %xmm3
pmovmskb %xmm3, %edx
lea 16(%edi), %edi
sub $0xffff, %edx
lea 16(%esi), %esi
jnz L(less16bytes)
mov %edi, %edx
and $0xf, %edx
xor %edx, %edi
sub %edx, %esi
add %edx, %ecx
mov %esi, %edx
and $0xf, %edx
jz L(shr_0)
xor %edx, %esi
#ifndef USE_AS_WMEMCMP
cmp $8, %edx
jae L(next_unaligned_table)
cmp $0, %edx
je L(shr_0)
cmp $1, %edx
je L(shr_1)
cmp $2, %edx
je L(shr_2)
cmp $3, %edx
je L(shr_3)
cmp $4, %edx
je L(shr_4)
cmp $5, %edx
je L(shr_5)
cmp $6, %edx
je L(shr_6)
jmp L(shr_7)
.p2align 2
L(next_unaligned_table):
cmp $8, %edx
je L(shr_8)
cmp $9, %edx
je L(shr_9)
cmp $10, %edx
je L(shr_10)
cmp $11, %edx
je L(shr_11)
cmp $12, %edx
je L(shr_12)
cmp $13, %edx
je L(shr_13)
cmp $14, %edx
je L(shr_14)
jmp L(shr_15)
#else
cmp $0, %edx
je L(shr_0)
cmp $4, %edx
je L(shr_4)
cmp $8, %edx
je L(shr_8)
jmp L(shr_12)
#endif
.p2align 4
L(shr_0):
cmp $80, %ecx
jae L(shr_0_gobble)
lea -48(%ecx), %ecx
xor %eax, %eax
movaps (%esi), %xmm1
pcmpeqb (%edi), %xmm1
movaps 16(%esi), %xmm2
pcmpeqb 16(%edi), %xmm2
pand %xmm1, %xmm2
pmovmskb %xmm2, %edx
add $32, %edi
add $32, %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea (%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_0_gobble):
lea -48(%ecx), %ecx
movdqa (%esi), %xmm0
xor %eax, %eax
pcmpeqb (%edi), %xmm0
sub $32, %ecx
movdqa 16(%esi), %xmm2
pcmpeqb 16(%edi), %xmm2
L(shr_0_gobble_loop):
pand %xmm0, %xmm2
sub $32, %ecx
pmovmskb %xmm2, %edx
movdqa %xmm0, %xmm1
movdqa 32(%esi), %xmm0
movdqa 48(%esi), %xmm2
sbb $0xffff, %edx
pcmpeqb 32(%edi), %xmm0
pcmpeqb 48(%edi), %xmm2
lea 32(%edi), %edi
lea 32(%esi), %esi
jz L(shr_0_gobble_loop)
pand %xmm0, %xmm2
cmp $0, %ecx
jge L(shr_0_gobble_loop_next)
inc %edx
add $32, %ecx
L(shr_0_gobble_loop_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm2, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea (%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#ifndef USE_AS_WMEMCMP
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_1):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_1_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $1,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $1,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 1(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_1_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $1,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $1,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_1_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $1,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $1,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_1_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_1_gobble_next)
inc %edx
add $32, %ecx
L(shr_1_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 1(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_2):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_2_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $2,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $2,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 2(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_2_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $2,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $2,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_2_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $2,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $2,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_2_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_2_gobble_next)
inc %edx
add $32, %ecx
L(shr_2_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 2(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_3):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_3_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $3,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $3,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 3(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_3_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $3,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $3,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_3_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $3,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $3,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_3_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_3_gobble_next)
inc %edx
add $32, %ecx
L(shr_3_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 3(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#endif
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_4):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_4_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $4,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $4,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 4(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_4_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $4,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $4,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_4_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $4,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $4,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_4_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_4_gobble_next)
inc %edx
add $32, %ecx
L(shr_4_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 4(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#ifndef USE_AS_WMEMCMP
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_5):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_5_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $5,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $5,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 5(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_5_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $5,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $5,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_5_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $5,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $5,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_5_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_5_gobble_next)
inc %edx
add $32, %ecx
L(shr_5_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 5(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_6):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_6_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $6,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $6,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 6(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_6_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $6,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $6,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_6_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $6,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $6,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_6_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_6_gobble_next)
inc %edx
add $32, %ecx
L(shr_6_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 6(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_7):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_7_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $7,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $7,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 7(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_7_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $7,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $7,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_7_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $7,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $7,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_7_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_7_gobble_next)
inc %edx
add $32, %ecx
L(shr_7_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 7(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#endif
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_8):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_8_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $8,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $8,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 8(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_8_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $8,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $8,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_8_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $8,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $8,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_8_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_8_gobble_next)
inc %edx
add $32, %ecx
L(shr_8_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 8(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#ifndef USE_AS_WMEMCMP
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_9):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_9_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $9,(%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $9,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 9(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_9_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $9,(%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $9,16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_9_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $9,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $9,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_9_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_9_gobble_next)
inc %edx
add $32, %ecx
L(shr_9_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 9(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_10):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_10_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $10, (%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $10,%xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 10(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_10_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $10, (%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $10, 16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_10_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $10,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $10,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_10_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_10_gobble_next)
inc %edx
add $32, %ecx
L(shr_10_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 10(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_11):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_11_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $11, (%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $11, %xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 11(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_11_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $11, (%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $11, 16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_11_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $11,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $11,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_11_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_11_gobble_next)
inc %edx
add $32, %ecx
L(shr_11_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 11(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#endif
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_12):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_12_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $12, (%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $12, %xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 12(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_12_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $12, (%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $12, 16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_12_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $12,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $12,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_12_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_12_gobble_next)
inc %edx
add $32, %ecx
L(shr_12_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 12(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#ifndef USE_AS_WMEMCMP
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_13):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_13_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $13, (%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $13, %xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 13(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_13_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $13, (%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $13, 16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_13_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $13,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $13,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_13_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_13_gobble_next)
inc %edx
add $32, %ecx
L(shr_13_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 13(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_14):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_14_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $14, (%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $14, %xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 14(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_14_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $14, (%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $14, 16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_14_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $14,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $14,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_14_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_14_gobble_next)
inc %edx
add $32, %ecx
L(shr_14_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 14(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_15):
cmp $80, %ecx
lea -48(%ecx), %ecx
mov %edx, %eax
jae L(shr_15_gobble)
movdqa 16(%esi), %xmm1
movdqa %xmm1, %xmm2
palignr $15, (%esi), %xmm1
pcmpeqb (%edi), %xmm1
movdqa 32(%esi), %xmm3
palignr $15, %xmm2, %xmm3
pcmpeqb 16(%edi), %xmm3
pand %xmm1, %xmm3
pmovmskb %xmm3, %edx
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 15(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
cfi_restore_state
cfi_remember_state
.p2align 4
L(shr_15_gobble):
sub $32, %ecx
movdqa 16(%esi), %xmm0
palignr $15, (%esi), %xmm0
pcmpeqb (%edi), %xmm0
movdqa 32(%esi), %xmm3
palignr $15, 16(%esi), %xmm3
pcmpeqb 16(%edi), %xmm3
L(shr_15_gobble_loop):
pand %xmm0, %xmm3
sub $32, %ecx
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
movdqa 64(%esi), %xmm3
palignr $15,48(%esi), %xmm3
sbb $0xffff, %edx
movdqa 48(%esi), %xmm0
palignr $15,32(%esi), %xmm0
pcmpeqb 32(%edi), %xmm0
lea 32(%esi), %esi
pcmpeqb 48(%edi), %xmm3
lea 32(%edi), %edi
jz L(shr_15_gobble_loop)
pand %xmm0, %xmm3
cmp $0, %ecx
jge L(shr_15_gobble_next)
inc %edx
add $32, %ecx
L(shr_15_gobble_next):
test %edx, %edx
jnz L(exit)
pmovmskb %xmm3, %edx
movdqa %xmm0, %xmm1
lea 32(%edi), %edi
lea 32(%esi), %esi
sub $0xffff, %edx
jnz L(exit)
lea (%ecx, %edi,1), %eax
lea 15(%ecx, %esi,1), %edx
POP (%edi)
POP (%esi)
jmp L(less48bytes)
#endif
cfi_restore_state
cfi_remember_state
.p2align 4
L(exit):
pmovmskb %xmm1, %ebx
sub $0xffff, %ebx
jz L(first16bytes)
lea -16(%esi), %esi
lea -16(%edi), %edi
mov %ebx, %edx
L(first16bytes):
add %eax, %esi
L(less16bytes):
#ifndef USE_AS_WMEMCMP
test %dl, %dl
jz L(next_24_bytes)
test $0x01, %dl
jnz L(Byte16)
test $0x02, %dl
jnz L(Byte17)
test $0x04, %dl
jnz L(Byte18)
test $0x08, %dl
jnz L(Byte19)
test $0x10, %dl
jnz L(Byte20)
test $0x20, %dl
jnz L(Byte21)
test $0x40, %dl
jnz L(Byte22)
L(Byte23):
movzbl -9(%edi), %eax
movzbl -9(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(Byte16):
movzbl -16(%edi), %eax
movzbl -16(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(Byte17):
movzbl -15(%edi), %eax
movzbl -15(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(Byte18):
movzbl -14(%edi), %eax
movzbl -14(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(Byte19):
movzbl -13(%edi), %eax
movzbl -13(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(Byte20):
movzbl -12(%edi), %eax
movzbl -12(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(Byte21):
movzbl -11(%edi), %eax
movzbl -11(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(Byte22):
movzbl -10(%edi), %eax
movzbl -10(%esi), %edx
sub %edx, %eax
RETURN
.p2align 4
L(next_24_bytes):
lea 8(%edi), %edi
lea 8(%esi), %esi
test $0x01, %dh
jnz L(Byte16)
test $0x02, %dh
jnz L(Byte17)
test $0x04, %dh
jnz L(Byte18)
test $0x08, %dh
jnz L(Byte19)
test $0x10, %dh
jnz L(Byte20)
test $0x20, %dh
jnz L(Byte21)
test $0x40, %dh
jnz L(Byte22)
.p2align 4
L(Byte31):
movzbl -9(%edi), %eax
movzbl -9(%esi), %edx
sub %edx, %eax
RETURN_END
#else
/* special for wmemcmp */
test %dl, %dl
jz L(next_two_double_words)
and $15, %dl
jz L(second_double_word)
mov -16(%edi), %ecx
cmp -16(%esi), %ecx
mov $1, %eax
jg L(nequal_bigger)
neg %eax
RETURN
.p2align 4
L(second_double_word):
mov -12(%edi), %ecx
cmp -12(%esi), %ecx
mov $1, %eax
jg L(nequal_bigger)
neg %eax
RETURN
.p2align 4
L(next_two_double_words):
and $15, %dh
jz L(fourth_double_word)
mov -8(%edi), %ecx
cmp -8(%esi), %ecx
mov $1, %eax
jg L(nequal_bigger)
neg %eax
RETURN
.p2align 4
L(fourth_double_word):
mov -4(%edi), %ecx
cmp -4(%esi), %ecx
mov $1, %eax
jg L(nequal_bigger)
neg %eax
RETURN
.p2align 4
L(nequal_bigger):
RETURN_END
#endif
CFI_PUSH (%ebx)
.p2align 4
L(more8bytes):
cmp $16, %ecx
jae L(more16bytes)
cmp $8, %ecx
je L(8bytes)
#ifndef USE_AS_WMEMCMP
cmp $9, %ecx
je L(9bytes)
cmp $10, %ecx
je L(10bytes)
cmp $11, %ecx
je L(11bytes)
cmp $12, %ecx
je L(12bytes)
cmp $13, %ecx
je L(13bytes)
cmp $14, %ecx
je L(14bytes)
jmp L(15bytes)
#else
jmp L(12bytes)
#endif
.p2align 4
L(more16bytes):
cmp $24, %ecx
jae L(more24bytes)
cmp $16, %ecx
je L(16bytes)
#ifndef USE_AS_WMEMCMP
cmp $17, %ecx
je L(17bytes)
cmp $18, %ecx
je L(18bytes)
cmp $19, %ecx
je L(19bytes)
cmp $20, %ecx
je L(20bytes)
cmp $21, %ecx
je L(21bytes)
cmp $22, %ecx
je L(22bytes)
jmp L(23bytes)
#else
jmp L(20bytes)
#endif
.p2align 4
L(more24bytes):
cmp $32, %ecx
jae L(more32bytes)
cmp $24, %ecx
je L(24bytes)
#ifndef USE_AS_WMEMCMP
cmp $25, %ecx
je L(25bytes)
cmp $26, %ecx
je L(26bytes)
cmp $27, %ecx
je L(27bytes)
cmp $28, %ecx
je L(28bytes)
cmp $29, %ecx
je L(29bytes)
cmp $30, %ecx
je L(30bytes)
jmp L(31bytes)
#else
jmp L(28bytes)
#endif
.p2align 4
L(more32bytes):
cmp $40, %ecx
jae L(more40bytes)
cmp $32, %ecx
je L(32bytes)
#ifndef USE_AS_WMEMCMP
cmp $33, %ecx
je L(33bytes)
cmp $34, %ecx
je L(34bytes)
cmp $35, %ecx
je L(35bytes)
cmp $36, %ecx
je L(36bytes)
cmp $37, %ecx
je L(37bytes)
cmp $38, %ecx
je L(38bytes)
jmp L(39bytes)
#else
jmp L(36bytes)
#endif
.p2align 4
L(less48bytes):
cmp $8, %ecx
jae L(more8bytes)
#ifndef USE_AS_WMEMCMP
cmp $2, %ecx
je L(2bytes)
cmp $3, %ecx
je L(3bytes)
cmp $4, %ecx
je L(4bytes)
cmp $5, %ecx
je L(5bytes)
cmp $6, %ecx
je L(6bytes)
jmp L(7bytes)
#else
jmp L(4bytes)
#endif
.p2align 4
L(more40bytes):
cmp $40, %ecx
je L(40bytes)
#ifndef USE_AS_WMEMCMP
cmp $41, %ecx
je L(41bytes)
cmp $42, %ecx
je L(42bytes)
cmp $43, %ecx
je L(43bytes)
cmp $44, %ecx
je L(44bytes)
cmp $45, %ecx
je L(45bytes)
cmp $46, %ecx
je L(46bytes)
jmp L(47bytes)
.p2align 4
L(44bytes):
mov -44(%eax), %ecx
mov -44(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(40bytes):
mov -40(%eax), %ecx
mov -40(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(36bytes):
mov -36(%eax), %ecx
mov -36(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(32bytes):
mov -32(%eax), %ecx
mov -32(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(28bytes):
mov -28(%eax), %ecx
mov -28(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(24bytes):
mov -24(%eax), %ecx
mov -24(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(20bytes):
mov -20(%eax), %ecx
mov -20(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(16bytes):
mov -16(%eax), %ecx
mov -16(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(12bytes):
mov -12(%eax), %ecx
mov -12(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(8bytes):
mov -8(%eax), %ecx
mov -8(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(4bytes):
mov -4(%eax), %ecx
mov -4(%edx), %ebx
cmp %ebx, %ecx
mov $0, %eax
jne L(find_diff)
POP (%ebx)
ret
CFI_PUSH (%ebx)
#else
.p2align 4
L(44bytes):
mov -44(%eax), %ecx
cmp -44(%edx), %ecx
jne L(find_diff)
L(40bytes):
mov -40(%eax), %ecx
cmp -40(%edx), %ecx
jne L(find_diff)
L(36bytes):
mov -36(%eax), %ecx
cmp -36(%edx), %ecx
jne L(find_diff)
L(32bytes):
mov -32(%eax), %ecx
cmp -32(%edx), %ecx
jne L(find_diff)
L(28bytes):
mov -28(%eax), %ecx
cmp -28(%edx), %ecx
jne L(find_diff)
L(24bytes):
mov -24(%eax), %ecx
cmp -24(%edx), %ecx
jne L(find_diff)
L(20bytes):
mov -20(%eax), %ecx
cmp -20(%edx), %ecx
jne L(find_diff)
L(16bytes):
mov -16(%eax), %ecx
cmp -16(%edx), %ecx
jne L(find_diff)
L(12bytes):
mov -12(%eax), %ecx
cmp -12(%edx), %ecx
jne L(find_diff)
L(8bytes):
mov -8(%eax), %ecx
cmp -8(%edx), %ecx
jne L(find_diff)
L(4bytes):
mov -4(%eax), %ecx
xor %eax, %eax
cmp -4(%edx), %ecx
jne L(find_diff)
POP (%ebx)
ret
CFI_PUSH (%ebx)
#endif
#ifndef USE_AS_WMEMCMP
.p2align 4
L(45bytes):
mov -45(%eax), %ecx
mov -45(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(41bytes):
mov -41(%eax), %ecx
mov -41(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(37bytes):
mov -37(%eax), %ecx
mov -37(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(33bytes):
mov -33(%eax), %ecx
mov -33(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(29bytes):
mov -29(%eax), %ecx
mov -29(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(25bytes):
mov -25(%eax), %ecx
mov -25(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(21bytes):
mov -21(%eax), %ecx
mov -21(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(17bytes):
mov -17(%eax), %ecx
mov -17(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(13bytes):
mov -13(%eax), %ecx
mov -13(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(9bytes):
mov -9(%eax), %ecx
mov -9(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(5bytes):
mov -5(%eax), %ecx
mov -5(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
movzbl -1(%eax), %ecx
cmp -1(%edx), %cl
mov $0, %eax
jne L(end)
POP (%ebx)
ret
CFI_PUSH (%ebx)
.p2align 4
L(46bytes):
mov -46(%eax), %ecx
mov -46(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(42bytes):
mov -42(%eax), %ecx
mov -42(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(38bytes):
mov -38(%eax), %ecx
mov -38(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(34bytes):
mov -34(%eax), %ecx
mov -34(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(30bytes):
mov -30(%eax), %ecx
mov -30(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(26bytes):
mov -26(%eax), %ecx
mov -26(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(22bytes):
mov -22(%eax), %ecx
mov -22(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(18bytes):
mov -18(%eax), %ecx
mov -18(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(14bytes):
mov -14(%eax), %ecx
mov -14(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(10bytes):
mov -10(%eax), %ecx
mov -10(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(6bytes):
mov -6(%eax), %ecx
mov -6(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(2bytes):
movzwl -2(%eax), %ecx
movzwl -2(%edx), %ebx
cmp %bl, %cl
jne L(end)
cmp %bh, %ch
mov $0, %eax
jne L(end)
POP (%ebx)
ret
CFI_PUSH (%ebx)
.p2align 4
L(47bytes):
movl -47(%eax), %ecx
movl -47(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(43bytes):
movl -43(%eax), %ecx
movl -43(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(39bytes):
movl -39(%eax), %ecx
movl -39(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(35bytes):
movl -35(%eax), %ecx
movl -35(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(31bytes):
movl -31(%eax), %ecx
movl -31(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(27bytes):
movl -27(%eax), %ecx
movl -27(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(23bytes):
movl -23(%eax), %ecx
movl -23(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(19bytes):
movl -19(%eax), %ecx
movl -19(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(15bytes):
movl -15(%eax), %ecx
movl -15(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(11bytes):
movl -11(%eax), %ecx
movl -11(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(7bytes):
movl -7(%eax), %ecx
movl -7(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
L(3bytes):
movzwl -3(%eax), %ecx
movzwl -3(%edx), %ebx
cmpb %bl, %cl
jne L(end)
cmp %bx, %cx
jne L(end)
movzbl -1(%eax), %eax
cmpb -1(%edx), %al
mov $0, %eax
jne L(end)
POP (%ebx)
ret
CFI_PUSH (%ebx)
.p2align 4
L(find_diff):
cmpb %bl, %cl
jne L(end)
cmp %bx, %cx
jne L(end)
shr $16,%ecx
shr $16,%ebx
cmp %bl, %cl
jne L(end)
cmp %bx, %cx
.p2align 4
L(end):
POP (%ebx)
mov $1, %eax
ja L(bigger)
neg %eax
L(bigger):
ret
#else
/* for wmemcmp */
.p2align 4
L(find_diff):
POP (%ebx)
mov $1, %eax
jg L(find_diff_bigger)
neg %eax
ret
.p2align 4
L(find_diff_bigger):
ret
#endif
END (MEMCMP)
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