5a92284167
Add following functions: bcopy, memcpy, memmove, memset, bzero, memcmp, wmemcmp, strlen, strcpy, strncpy, stpcpy, stpncpy. Create new directories inside arch-x86 to specify architecture: atom, silvermont and generic (non atom or silvermont architectures are treated like generic). Due to introducing optimized versions of stpcpy and stpncpy, c-implementations of these functions are moved from common for architectures makefile to arm and mips specific makefiles. Change-Id: I990f8061c3e9bca1f154119303da9e781c5d086e Signed-off-by: Varvara Rainchik <varvara.rainchik@intel.com>
267 lines
5 KiB
ArmAsm
267 lines
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 PARMS 4
|
|
|
|
|
|
#define STR1 PARMS
|
|
#define STR2 STR1+4
|
|
|
|
.text
|
|
ENTRY (wcschr)
|
|
|
|
mov STR1(%esp), %ecx
|
|
movd STR2(%esp), %xmm1
|
|
|
|
mov %ecx, %eax
|
|
punpckldq %xmm1, %xmm1
|
|
pxor %xmm2, %xmm2
|
|
punpckldq %xmm1, %xmm1
|
|
|
|
and $63, %eax
|
|
cmp $48, %eax
|
|
ja L(cross_cache)
|
|
|
|
movdqu (%ecx), %xmm0
|
|
pcmpeqd %xmm0, %xmm2
|
|
pcmpeqd %xmm1, %xmm0
|
|
pmovmskb %xmm2, %edx
|
|
pmovmskb %xmm0, %eax
|
|
or %eax, %edx
|
|
jnz L(matches)
|
|
and $-16, %ecx
|
|
jmp L(loop)
|
|
|
|
.p2align 4
|
|
L(cross_cache):
|
|
PUSH (%edi)
|
|
mov %ecx, %edi
|
|
mov %eax, %ecx
|
|
and $-16, %edi
|
|
and $15, %ecx
|
|
movdqa (%edi), %xmm0
|
|
pcmpeqd %xmm0, %xmm2
|
|
pcmpeqd %xmm1, %xmm0
|
|
pmovmskb %xmm2, %edx
|
|
pmovmskb %xmm0, %eax
|
|
|
|
sarl %cl, %edx
|
|
sarl %cl, %eax
|
|
test %eax, %eax
|
|
jz L(unaligned_no_match)
|
|
|
|
add %edi, %ecx
|
|
POP (%edi)
|
|
|
|
test %edx, %edx
|
|
jz L(match_case1)
|
|
test %al, %al
|
|
jz L(match_higth_case2)
|
|
test $15, %al
|
|
jnz L(match_case2_4)
|
|
test $15, %dl
|
|
jnz L(return_null)
|
|
lea 4(%ecx), %eax
|
|
ret
|
|
|
|
CFI_PUSH (%edi)
|
|
|
|
.p2align 4
|
|
L(unaligned_no_match):
|
|
mov %edi, %ecx
|
|
POP (%edi)
|
|
|
|
test %edx, %edx
|
|
jnz L(return_null)
|
|
|
|
pxor %xmm2, %xmm2
|
|
|
|
/* Loop start on aligned string. */
|
|
.p2align 4
|
|
L(loop):
|
|
add $16, %ecx
|
|
movdqa (%ecx), %xmm0
|
|
pcmpeqd %xmm0, %xmm2
|
|
pcmpeqd %xmm1, %xmm0
|
|
pmovmskb %xmm2, %edx
|
|
pmovmskb %xmm0, %eax
|
|
or %eax, %edx
|
|
jnz L(matches)
|
|
add $16, %ecx
|
|
|
|
movdqa (%ecx), %xmm0
|
|
pcmpeqd %xmm0, %xmm2
|
|
pcmpeqd %xmm1, %xmm0
|
|
pmovmskb %xmm2, %edx
|
|
pmovmskb %xmm0, %eax
|
|
or %eax, %edx
|
|
jnz L(matches)
|
|
add $16, %ecx
|
|
|
|
movdqa (%ecx), %xmm0
|
|
pcmpeqd %xmm0, %xmm2
|
|
pcmpeqd %xmm1, %xmm0
|
|
pmovmskb %xmm2, %edx
|
|
pmovmskb %xmm0, %eax
|
|
or %eax, %edx
|
|
jnz L(matches)
|
|
add $16, %ecx
|
|
|
|
movdqa (%ecx), %xmm0
|
|
pcmpeqd %xmm0, %xmm2
|
|
pcmpeqd %xmm1, %xmm0
|
|
pmovmskb %xmm2, %edx
|
|
pmovmskb %xmm0, %eax
|
|
or %eax, %edx
|
|
jz L(loop)
|
|
|
|
.p2align 4
|
|
L(matches):
|
|
pmovmskb %xmm2, %edx
|
|
test %eax, %eax
|
|
jz L(return_null)
|
|
test %edx, %edx
|
|
jz L(match_case1)
|
|
|
|
.p2align 4
|
|
L(match_case2):
|
|
test %al, %al
|
|
jz L(match_higth_case2)
|
|
test $15, %al
|
|
jnz L(match_case2_4)
|
|
test $15, %dl
|
|
jnz L(return_null)
|
|
lea 4(%ecx), %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(match_case2_4):
|
|
mov %ecx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(match_higth_case2):
|
|
test %dl, %dl
|
|
jnz L(return_null)
|
|
test $15, %ah
|
|
jnz L(match_case2_12)
|
|
test $15, %dh
|
|
jnz L(return_null)
|
|
lea 12(%ecx), %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(match_case2_12):
|
|
lea 8(%ecx), %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(match_case1):
|
|
test %al, %al
|
|
jz L(match_higth_case1)
|
|
|
|
test $0x01, %al
|
|
jnz L(exit0)
|
|
lea 4(%ecx), %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(match_higth_case1):
|
|
test $0x01, %ah
|
|
jnz L(exit3)
|
|
lea 12(%ecx), %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(exit0):
|
|
mov %ecx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(exit3):
|
|
lea 8(%ecx), %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(return_null):
|
|
xor %eax, %eax
|
|
ret
|
|
|
|
END (wcschr)
|