0a490665a3
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>
556 lines
9.5 KiB
ArmAsm
556 lines
9.5 KiB
ArmAsm
/*
|
|
Copyright (c) 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 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
|
|
|
|
#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 ENTRANCE PUSH (%edi);
|
|
#define PARMS 8
|
|
#define RETURN POP (%edi); ret; CFI_PUSH (%edi);
|
|
|
|
#define STR1 PARMS
|
|
#define STR2 STR1+4
|
|
#define LEN STR2+4
|
|
|
|
.text
|
|
ENTRY (memchr)
|
|
ENTRANCE
|
|
mov STR1(%esp), %ecx
|
|
movd STR2(%esp), %xmm1
|
|
mov LEN(%esp), %edx
|
|
test %edx, %edx
|
|
jz L(return_null)
|
|
|
|
punpcklbw %xmm1, %xmm1
|
|
mov %ecx, %edi
|
|
punpcklbw %xmm1, %xmm1
|
|
|
|
and $63, %ecx
|
|
pshufd $0, %xmm1, %xmm1
|
|
cmp $48, %ecx
|
|
ja L(crosscache)
|
|
|
|
movdqu (%edi), %xmm0
|
|
pcmpeqb %xmm1, %xmm0
|
|
pmovmskb %xmm0, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case2_prolog)
|
|
|
|
sub $16, %edx
|
|
jbe L(return_null)
|
|
lea 16(%edi), %edi
|
|
and $15, %ecx
|
|
and $-16, %edi
|
|
add %ecx, %edx
|
|
sub $64, %edx
|
|
jbe L(exit_loop)
|
|
jmp L(loop_prolog)
|
|
|
|
.p2align 4
|
|
L(crosscache):
|
|
and $15, %ecx
|
|
and $-16, %edi
|
|
movdqa (%edi), %xmm0
|
|
pcmpeqb %xmm1, %xmm0
|
|
pmovmskb %xmm0, %eax
|
|
sar %cl, %eax
|
|
test %eax, %eax
|
|
|
|
jnz L(match_case2_prolog1)
|
|
lea -16(%edx), %edx
|
|
add %ecx, %edx
|
|
jle L(return_null)
|
|
lea 16(%edi), %edi
|
|
sub $64, %edx
|
|
jbe L(exit_loop)
|
|
|
|
.p2align 4
|
|
L(loop_prolog):
|
|
movdqa (%edi), %xmm0
|
|
pcmpeqb %xmm1, %xmm0
|
|
xor %ecx, %ecx
|
|
pmovmskb %xmm0, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
movdqa 16(%edi), %xmm2
|
|
pcmpeqb %xmm1, %xmm2
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm2, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
movdqa 32(%edi), %xmm3
|
|
pcmpeqb %xmm1, %xmm3
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm3, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
movdqa 48(%edi), %xmm4
|
|
pcmpeqb %xmm1, %xmm4
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm4, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
lea 64(%edi), %edi
|
|
sub $64, %edx
|
|
jbe L(exit_loop)
|
|
|
|
movdqa (%edi), %xmm0
|
|
pcmpeqb %xmm1, %xmm0
|
|
xor %ecx, %ecx
|
|
pmovmskb %xmm0, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
movdqa 16(%edi), %xmm2
|
|
pcmpeqb %xmm1, %xmm2
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm2, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
movdqa 32(%edi), %xmm3
|
|
pcmpeqb %xmm1, %xmm3
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm3, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
movdqa 48(%edi), %xmm4
|
|
pcmpeqb %xmm1, %xmm4
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm4, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
lea 64(%edi), %edi
|
|
mov %edi, %ecx
|
|
and $-64, %edi
|
|
and $63, %ecx
|
|
add %ecx, %edx
|
|
|
|
.p2align 4
|
|
L(align64_loop):
|
|
sub $64, %edx
|
|
jbe L(exit_loop)
|
|
movdqa (%edi), %xmm0
|
|
movdqa 16(%edi), %xmm2
|
|
movdqa 32(%edi), %xmm3
|
|
movdqa 48(%edi), %xmm4
|
|
pcmpeqb %xmm1, %xmm0
|
|
pcmpeqb %xmm1, %xmm2
|
|
pcmpeqb %xmm1, %xmm3
|
|
pcmpeqb %xmm1, %xmm4
|
|
|
|
pmaxub %xmm0, %xmm3
|
|
pmaxub %xmm2, %xmm4
|
|
pmaxub %xmm3, %xmm4
|
|
add $64, %edi
|
|
pmovmskb %xmm4, %eax
|
|
|
|
test %eax, %eax
|
|
jz L(align64_loop)
|
|
|
|
sub $64, %edi
|
|
|
|
pmovmskb %xmm0, %eax
|
|
xor %ecx, %ecx
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
pmovmskb %xmm2, %eax
|
|
lea 16(%ecx), %ecx
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
movdqa 32(%edi), %xmm3
|
|
pcmpeqb %xmm1, %xmm3
|
|
pmovmskb %xmm3, %eax
|
|
lea 16(%ecx), %ecx
|
|
test %eax, %eax
|
|
jnz L(match_case1)
|
|
|
|
pcmpeqb 48(%edi), %xmm1
|
|
pmovmskb %xmm1, %eax
|
|
lea 16(%ecx), %ecx
|
|
|
|
.p2align 4
|
|
L(match_case1):
|
|
add %ecx, %edi
|
|
test %al, %al
|
|
jz L(match_case1_high)
|
|
mov %al, %cl
|
|
and $15, %cl
|
|
jz L(match_case1_8)
|
|
test $0x01, %al
|
|
jnz L(exit_case1_1)
|
|
test $0x02, %al
|
|
jnz L(exit_case1_2)
|
|
test $0x04, %al
|
|
jnz L(exit_case1_3)
|
|
lea 3(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(match_case1_8):
|
|
test $0x10, %al
|
|
jnz L(exit_case1_5)
|
|
test $0x20, %al
|
|
jnz L(exit_case1_6)
|
|
test $0x40, %al
|
|
jnz L(exit_case1_7)
|
|
lea 7(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(match_case1_high):
|
|
mov %ah, %ch
|
|
and $15, %ch
|
|
jz L(match_case1_high_8)
|
|
test $0x01, %ah
|
|
jnz L(exit_case1_9)
|
|
test $0x02, %ah
|
|
jnz L(exit_case1_10)
|
|
test $0x04, %ah
|
|
jnz L(exit_case1_11)
|
|
lea 11(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(match_case1_high_8):
|
|
test $0x10, %ah
|
|
jnz L(exit_case1_13)
|
|
test $0x20, %ah
|
|
jnz L(exit_case1_14)
|
|
test $0x40, %ah
|
|
jnz L(exit_case1_15)
|
|
lea 15(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_loop):
|
|
add $64, %edx
|
|
|
|
movdqa (%edi), %xmm0
|
|
pcmpeqb %xmm1, %xmm0
|
|
xor %ecx, %ecx
|
|
pmovmskb %xmm0, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case2)
|
|
cmp $16, %edx
|
|
jbe L(return_null)
|
|
|
|
movdqa 16(%edi), %xmm2
|
|
pcmpeqb %xmm1, %xmm2
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm2, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case2)
|
|
cmp $32, %edx
|
|
jbe L(return_null)
|
|
|
|
movdqa 32(%edi), %xmm3
|
|
pcmpeqb %xmm1, %xmm3
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm3, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case2)
|
|
cmp $48, %edx
|
|
jbe L(return_null)
|
|
|
|
pcmpeqb 48(%edi), %xmm1
|
|
lea 16(%ecx), %ecx
|
|
pmovmskb %xmm1, %eax
|
|
test %eax, %eax
|
|
jnz L(match_case2)
|
|
|
|
xor %eax, %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_1):
|
|
mov %edi, %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_2):
|
|
lea 1(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_3):
|
|
lea 2(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_5):
|
|
lea 4(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_6):
|
|
lea 5(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_7):
|
|
lea 6(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_9):
|
|
lea 8(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_10):
|
|
lea 9(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_11):
|
|
lea 10(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_13):
|
|
lea 12(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_14):
|
|
lea 13(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case1_15):
|
|
lea 14(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(match_case2):
|
|
sub %ecx, %edx
|
|
L(match_case2_prolog1):
|
|
add %ecx, %edi
|
|
L(match_case2_prolog):
|
|
test %al, %al
|
|
jz L(match_case2_high)
|
|
mov %al, %cl
|
|
and $15, %cl
|
|
jz L(match_case2_8)
|
|
test $0x01, %al
|
|
jnz L(exit_case2_1)
|
|
test $0x02, %al
|
|
jnz L(exit_case2_2)
|
|
test $0x04, %al
|
|
jnz L(exit_case2_3)
|
|
sub $4, %edx
|
|
jb L(return_null)
|
|
lea 3(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(match_case2_8):
|
|
test $0x10, %al
|
|
jnz L(exit_case2_5)
|
|
test $0x20, %al
|
|
jnz L(exit_case2_6)
|
|
test $0x40, %al
|
|
jnz L(exit_case2_7)
|
|
sub $8, %edx
|
|
jb L(return_null)
|
|
lea 7(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(match_case2_high):
|
|
mov %ah, %ch
|
|
and $15, %ch
|
|
jz L(match_case2_high_8)
|
|
test $0x01, %ah
|
|
jnz L(exit_case2_9)
|
|
test $0x02, %ah
|
|
jnz L(exit_case2_10)
|
|
test $0x04, %ah
|
|
jnz L(exit_case2_11)
|
|
sub $12, %edx
|
|
jb L(return_null)
|
|
lea 11(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(match_case2_high_8):
|
|
test $0x10, %ah
|
|
jnz L(exit_case2_13)
|
|
test $0x20, %ah
|
|
jnz L(exit_case2_14)
|
|
test $0x40, %ah
|
|
jnz L(exit_case2_15)
|
|
sub $16, %edx
|
|
jb L(return_null)
|
|
lea 15(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_1):
|
|
mov %edi, %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_2):
|
|
sub $2, %edx
|
|
jb L(return_null)
|
|
lea 1(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_3):
|
|
sub $3, %edx
|
|
jb L(return_null)
|
|
lea 2(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_5):
|
|
sub $5, %edx
|
|
jb L(return_null)
|
|
lea 4(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_6):
|
|
sub $6, %edx
|
|
jb L(return_null)
|
|
lea 5(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_7):
|
|
sub $7, %edx
|
|
jb L(return_null)
|
|
lea 6(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_9):
|
|
sub $9, %edx
|
|
jb L(return_null)
|
|
lea 8(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_10):
|
|
sub $10, %edx
|
|
jb L(return_null)
|
|
lea 9(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_11):
|
|
sub $11, %edx
|
|
jb L(return_null)
|
|
lea 10(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_13):
|
|
sub $13, %edx
|
|
jb L(return_null)
|
|
lea 12(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_14):
|
|
sub $14, %edx
|
|
jb L(return_null)
|
|
lea 13(%edi), %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_case2_15):
|
|
sub $15, %edx
|
|
jb L(return_null)
|
|
lea 14(%edi), %eax
|
|
RETURN
|
|
.p2align 4
|
|
L(return_null):
|
|
xor %eax, %eax
|
|
RETURN
|
|
END (memchr)
|