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5a92284167
bionic/libc/arch-x86/silvermont/string/sse4-memcmp-slm.S
Varvara Rainchik 5a92284167 Add 32-bit Silvermont-optimized string/memory functions. 
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>
2014-05-12 13:56:59 -07:00

1278 lines
26 KiB
ArmAsm
Executable File
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/*
Copyright (c) 2014, 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 POP (%ebx); ret; CFI_PUSH (%ebx)
#if (defined SHARED || defined __PIC__)
# define JMPTBL(I, B) I - B
/* Load an entry in a jump table into EBX and branch to it. TABLE is a
jump table with relative offsets. INDEX is a register contains the
index into the jump table. SCALE is the scale of INDEX. */
# define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE) \
/* We first load PC into EBX. */ \
call __x86.get_pc_thunk.bx; \
/* Get the address of the jump table. */ \
addl $(TABLE - .), %ebx; \
/* Get the entry and convert the relative offset to the \
absolute address. */ \
addl (%ebx,INDEX,SCALE), %ebx; \
/* We loaded the jump table and adjuested EDX/ESI. Go. */ \
jmp *%ebx
#else
# define JMPTBL(I, B) I
/* Load an entry in a jump table into EBX and branch to it. TABLE is a
jump table with relative offsets. INDEX is a register contains the
index into the jump table. SCALE is the scale of INDEX. */
# define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE) \
jmp *TABLE(,INDEX,SCALE)
#endif
/* Warning!
wmemcmp has to use SIGNED comparison for elements.
memcmp has to use UNSIGNED comparison for elemnts.
*/
.section .text.sse4.2,"ax",@progbits
ENTRY (MEMCMP)
movl BLK1(%esp), %eax
movl BLK2(%esp), %edx
movl LEN(%esp), %ecx
#ifdef USE_AS_WMEMCMP
shl $2, %ecx
test %ecx, %ecx
jz L(return0)
#else
cmp $1, %ecx
jbe L(less1bytes)
#endif
pxor %xmm0, %xmm0
cmp $64, %ecx
ja L(64bytesormore)
cmp $8, %ecx
#ifndef USE_AS_WMEMCMP
PUSH (%ebx)
jb L(less8bytes)
#else
jb L(less8bytes)
PUSH (%ebx)
#endif
add %ecx, %edx
add %ecx, %eax
BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %ecx, 4)
#ifndef USE_AS_WMEMCMP
.p2align 4
L(less8bytes):
mov (%eax), %bl
cmpb (%edx), %bl
jne L(nonzero)
mov 1(%eax), %bl
cmpb 1(%edx), %bl
jne L(nonzero)
cmp $2, %ecx
jz L(0bytes)
mov 2(%eax), %bl
cmpb 2(%edx), %bl
jne L(nonzero)
cmp $3, %ecx
jz L(0bytes)
mov 3(%eax), %bl
cmpb 3(%edx), %bl
jne L(nonzero)
cmp $4, %ecx
jz L(0bytes)
mov 4(%eax), %bl
cmpb 4(%edx), %bl
jne L(nonzero)
cmp $5, %ecx
jz L(0bytes)
mov 5(%eax), %bl
cmpb 5(%edx), %bl
jne L(nonzero)
cmp $6, %ecx
jz L(0bytes)
mov 6(%eax), %bl
cmpb 6(%edx), %bl
je L(0bytes)
L(nonzero):
POP (%ebx)
mov $1, %eax
ja L(above)
neg %eax
L(above):
ret
CFI_PUSH (%ebx)
#endif
.p2align 4
L(0bytes):
POP (%ebx)
xor %eax, %eax
ret
#ifdef USE_AS_WMEMCMP
/* for wmemcmp, case N == 1 */
.p2align 4
L(less8bytes):
mov (%eax), %ecx
cmp (%edx), %ecx
je L(return0)
mov $1, %eax
jg L(find_diff_bigger)
neg %eax
ret
.p2align 4
L(find_diff_bigger):
ret
.p2align 4
L(return0):
xor %eax, %eax
ret
#endif
#ifndef USE_AS_WMEMCMP
.p2align 4
L(less1bytes):
jb L(0bytesend)
movzbl (%eax), %eax
movzbl (%edx), %edx
sub %edx, %eax
ret
.p2align 4
L(0bytesend):
xor %eax, %eax
ret
#endif
.p2align 4
L(64bytesormore):
PUSH (%ebx)
mov %ecx, %ebx
mov $64, %ecx
sub $64, %ebx
L(64bytesormore_loop):
movdqu (%eax), %xmm1
movdqu (%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(find_16diff)
movdqu 16(%eax), %xmm1
movdqu 16(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(find_32diff)
movdqu 32(%eax), %xmm1
movdqu 32(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(find_48diff)
movdqu 48(%eax), %xmm1
movdqu 48(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(find_64diff)
add %ecx, %eax
add %ecx, %edx
sub %ecx, %ebx
jae L(64bytesormore_loop)
add %ebx, %ecx
add %ecx, %edx
add %ecx, %eax
BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %ecx, 4)
#ifdef USE_AS_WMEMCMP
/* Label needs only for table_64bytes filling */
L(unreal_case):
/* no code here */
#endif
.p2align 4
L(find_16diff):
sub $16, %ecx
L(find_32diff):
sub $16, %ecx
L(find_48diff):
sub $16, %ecx
L(find_64diff):
add %ecx, %edx
add %ecx, %eax
#ifndef USE_AS_WMEMCMP
.p2align 4
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)
RETURN
#else
.p2align 4
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
cmp -4(%edx), %ecx
mov $0, %eax
jne L(find_diff)
RETURN
#endif
#ifndef USE_AS_WMEMCMP
.p2align 4
L(49bytes):
movdqu -49(%eax), %xmm1
movdqu -49(%edx), %xmm2
mov $-49, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(33bytes):
movdqu -33(%eax), %xmm1
movdqu -33(%edx), %xmm2
mov $-33, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
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)
RETURN
.p2align 4
L(50bytes):
mov $-50, %ebx
movdqu -50(%eax), %xmm1
movdqu -50(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(34bytes):
mov $-34, %ebx
movdqu -34(%eax), %xmm1
movdqu -34(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
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)
RETURN
.p2align 4
L(51bytes):
mov $-51, %ebx
movdqu -51(%eax), %xmm1
movdqu -51(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(35bytes):
mov $-35, %ebx
movdqu -35(%eax), %xmm1
movdqu -35(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
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)
L(1bytes):
movzbl -1(%eax), %eax
cmpb -1(%edx), %al
mov $0, %eax
jne L(end)
RETURN
#endif
.p2align 4
L(52bytes):
movdqu -52(%eax), %xmm1
movdqu -52(%edx), %xmm2
mov $-52, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(36bytes):
movdqu -36(%eax), %xmm1
movdqu -36(%edx), %xmm2
mov $-36, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(20bytes):
movdqu -20(%eax), %xmm1
movdqu -20(%edx), %xmm2
mov $-20, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -4(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -4(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -4(%edx), %ecx
#endif
mov $0, %eax
jne L(find_diff)
RETURN
#ifndef USE_AS_WMEMCMP
.p2align 4
L(53bytes):
movdqu -53(%eax), %xmm1
movdqu -53(%edx), %xmm2
mov $-53, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(37bytes):
mov $-37, %ebx
movdqu -37(%eax), %xmm1
movdqu -37(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(21bytes):
mov $-21, %ebx
movdqu -21(%eax), %xmm1
movdqu -21(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
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)
RETURN
.p2align 4
L(54bytes):
movdqu -54(%eax), %xmm1
movdqu -54(%edx), %xmm2
mov $-54, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(38bytes):
mov $-38, %ebx
movdqu -38(%eax), %xmm1
movdqu -38(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(22bytes):
mov $-22, %ebx
movdqu -22(%eax), %xmm1
movdqu -22(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -6(%eax), %ecx
mov -6(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
movzwl -2(%eax), %ecx
movzwl -2(%edx), %ebx
cmp %bl, %cl
jne L(end)
cmp %bh, %ch
mov $0, %eax
jne L(end)
RETURN
.p2align 4
L(55bytes):
movdqu -55(%eax), %xmm1
movdqu -55(%edx), %xmm2
mov $-55, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(39bytes):
mov $-39, %ebx
movdqu -39(%eax), %xmm1
movdqu -39(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(23bytes):
mov $-23, %ebx
movdqu -23(%eax), %xmm1
movdqu -23(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
movl -7(%eax), %ecx
movl -7(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
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)
RETURN
#endif
.p2align 4
L(56bytes):
movdqu -56(%eax), %xmm1
movdqu -56(%edx), %xmm2
mov $-56, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(40bytes):
mov $-40, %ebx
movdqu -40(%eax), %xmm1
movdqu -40(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(24bytes):
mov $-24, %ebx
movdqu -24(%eax), %xmm1
movdqu -24(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -8(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -8(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -8(%edx), %ecx
#endif
jne L(find_diff)
mov -4(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -4(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -4(%edx), %ecx
#endif
mov $0, %eax
jne L(find_diff)
RETURN
#ifndef USE_AS_WMEMCMP
.p2align 4
L(57bytes):
movdqu -57(%eax), %xmm1
movdqu -57(%edx), %xmm2
mov $-57, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(41bytes):
mov $-41, %ebx
movdqu -41(%eax), %xmm1
movdqu -41(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(25bytes):
mov $-25, %ebx
movdqu -25(%eax), %xmm1
movdqu -25(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -9(%eax), %ecx
mov -9(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
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)
RETURN
.p2align 4
L(58bytes):
movdqu -58(%eax), %xmm1
movdqu -58(%edx), %xmm2
mov $-58, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(42bytes):
mov $-42, %ebx
movdqu -42(%eax), %xmm1
movdqu -42(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(26bytes):
mov $-26, %ebx
movdqu -26(%eax), %xmm1
movdqu -26(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -10(%eax), %ecx
mov -10(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
mov -6(%eax), %ecx
mov -6(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
movzwl -2(%eax), %ecx
movzwl -2(%edx), %ebx
cmp %bl, %cl
jne L(end)
cmp %bh, %ch
mov $0, %eax
jne L(end)
RETURN
.p2align 4
L(59bytes):
movdqu -59(%eax), %xmm1
movdqu -59(%edx), %xmm2
mov $-59, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(43bytes):
mov $-43, %ebx
movdqu -43(%eax), %xmm1
movdqu -43(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(27bytes):
mov $-27, %ebx
movdqu -27(%eax), %xmm1
movdqu -27(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
movl -11(%eax), %ecx
movl -11(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
movl -7(%eax), %ecx
movl -7(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
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)
RETURN
#endif
.p2align 4
L(60bytes):
movdqu -60(%eax), %xmm1
movdqu -60(%edx), %xmm2
mov $-60, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(44bytes):
mov $-44, %ebx
movdqu -44(%eax), %xmm1
movdqu -44(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(28bytes):
mov $-28, %ebx
movdqu -28(%eax), %xmm1
movdqu -28(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -12(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -12(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -12(%edx), %ecx
#endif
jne L(find_diff)
mov -8(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -8(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -8(%edx), %ecx
#endif
jne L(find_diff)
mov -4(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -4(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -4(%edx), %ecx
#endif
mov $0, %eax
jne L(find_diff)
RETURN
#ifndef USE_AS_WMEMCMP
.p2align 4
L(61bytes):
movdqu -61(%eax), %xmm1
movdqu -61(%edx), %xmm2
mov $-61, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(45bytes):
mov $-45, %ebx
movdqu -45(%eax), %xmm1
movdqu -45(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(29bytes):
mov $-29, %ebx
movdqu -29(%eax), %xmm1
movdqu -29(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -13(%eax), %ecx
mov -13(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
mov -9(%eax), %ecx
mov -9(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
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)
RETURN
.p2align 4
L(62bytes):
movdqu -62(%eax), %xmm1
movdqu -62(%edx), %xmm2
mov $-62, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(46bytes):
mov $-46, %ebx
movdqu -46(%eax), %xmm1
movdqu -46(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(30bytes):
mov $-30, %ebx
movdqu -30(%eax), %xmm1
movdqu -30(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -14(%eax), %ecx
mov -14(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
mov -10(%eax), %ecx
mov -10(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
mov -6(%eax), %ecx
mov -6(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
movzwl -2(%eax), %ecx
movzwl -2(%edx), %ebx
cmp %bl, %cl
jne L(end)
cmp %bh, %ch
mov $0, %eax
jne L(end)
RETURN
.p2align 4
L(63bytes):
movdqu -63(%eax), %xmm1
movdqu -63(%edx), %xmm2
mov $-63, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(47bytes):
mov $-47, %ebx
movdqu -47(%eax), %xmm1
movdqu -47(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(31bytes):
mov $-31, %ebx
movdqu -31(%eax), %xmm1
movdqu -31(%edx), %xmm2
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
movl -15(%eax), %ecx
movl -15(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
movl -11(%eax), %ecx
movl -11(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
movl -7(%eax), %ecx
movl -7(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
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)
RETURN
#endif
.p2align 4
L(64bytes):
movdqu -64(%eax), %xmm1
movdqu -64(%edx), %xmm2
mov $-64, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(48bytes):
movdqu -48(%eax), %xmm1
movdqu -48(%edx), %xmm2
mov $-48, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
L(32bytes):
movdqu -32(%eax), %xmm1
movdqu -32(%edx), %xmm2
mov $-32, %ebx
pxor %xmm1, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
mov -16(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -16(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -16(%edx), %ecx
#endif
jne L(find_diff)
mov -12(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -12(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -12(%edx), %ecx
#endif
jne L(find_diff)
mov -8(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -8(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -8(%edx), %ecx
#endif
jne L(find_diff)
mov -4(%eax), %ecx
#ifndef USE_AS_WMEMCMP
mov -4(%edx), %ebx
cmp %ebx, %ecx
#else
cmp -4(%edx), %ecx
#endif
mov $0, %eax
jne L(find_diff)
RETURN
#ifndef USE_AS_WMEMCMP
.p2align 4
L(less16bytes):
add %ebx, %eax
add %ebx, %edx
mov (%eax), %ecx
mov (%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
mov 4(%eax), %ecx
mov 4(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
mov 8(%eax), %ecx
mov 8(%edx), %ebx
cmp %ebx, %ecx
jne L(find_diff)
mov 12(%eax), %ecx
mov 12(%edx), %ebx
cmp %ebx, %ecx
mov $0, %eax
jne L(find_diff)
RETURN
#else
.p2align 4
L(less16bytes):
add %ebx, %eax
add %ebx, %edx
mov (%eax), %ecx
cmp (%edx), %ecx
jne L(find_diff)
mov 4(%eax), %ecx
cmp 4(%edx), %ecx
jne L(find_diff)
mov 8(%eax), %ecx
cmp 8(%edx), %ecx
jne L(find_diff)
mov 12(%eax), %ecx
cmp 12(%edx), %ecx
mov $0, %eax
jne L(find_diff)
RETURN
#endif
.p2align 4
L(find_diff):
#ifndef USE_AS_WMEMCMP
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
L(end):
POP (%ebx)
mov $1, %eax
ja L(bigger)
neg %eax
L(bigger):
ret
#else
POP (%ebx)
mov $1, %eax
jg L(bigger)
neg %eax
ret
.p2align 4
L(bigger):
ret
#endif
END (MEMCMP)
.section .rodata.sse4.2,"a",@progbits
.p2align 2
.type L(table_64bytes), @object
#ifndef USE_AS_WMEMCMP
L(table_64bytes):
.int JMPTBL (L(0bytes), L(table_64bytes))
.int JMPTBL (L(1bytes), L(table_64bytes))
.int JMPTBL (L(2bytes), L(table_64bytes))
.int JMPTBL (L(3bytes), L(table_64bytes))
.int JMPTBL (L(4bytes), L(table_64bytes))
.int JMPTBL (L(5bytes), L(table_64bytes))
.int JMPTBL (L(6bytes), L(table_64bytes))
.int JMPTBL (L(7bytes), L(table_64bytes))
.int JMPTBL (L(8bytes), L(table_64bytes))
.int JMPTBL (L(9bytes), L(table_64bytes))
.int JMPTBL (L(10bytes), L(table_64bytes))
.int JMPTBL (L(11bytes), L(table_64bytes))
.int JMPTBL (L(12bytes), L(table_64bytes))
.int JMPTBL (L(13bytes), L(table_64bytes))
.int JMPTBL (L(14bytes), L(table_64bytes))
.int JMPTBL (L(15bytes), L(table_64bytes))
.int JMPTBL (L(16bytes), L(table_64bytes))
.int JMPTBL (L(17bytes), L(table_64bytes))
.int JMPTBL (L(18bytes), L(table_64bytes))
.int JMPTBL (L(19bytes), L(table_64bytes))
.int JMPTBL (L(20bytes), L(table_64bytes))
.int JMPTBL (L(21bytes), L(table_64bytes))
.int JMPTBL (L(22bytes), L(table_64bytes))
.int JMPTBL (L(23bytes), L(table_64bytes))
.int JMPTBL (L(24bytes), L(table_64bytes))
.int JMPTBL (L(25bytes), L(table_64bytes))
.int JMPTBL (L(26bytes), L(table_64bytes))
.int JMPTBL (L(27bytes), L(table_64bytes))
.int JMPTBL (L(28bytes), L(table_64bytes))
.int JMPTBL (L(29bytes), L(table_64bytes))
.int JMPTBL (L(30bytes), L(table_64bytes))
.int JMPTBL (L(31bytes), L(table_64bytes))
.int JMPTBL (L(32bytes), L(table_64bytes))
.int JMPTBL (L(33bytes), L(table_64bytes))
.int JMPTBL (L(34bytes), L(table_64bytes))
.int JMPTBL (L(35bytes), L(table_64bytes))
.int JMPTBL (L(36bytes), L(table_64bytes))
.int JMPTBL (L(37bytes), L(table_64bytes))
.int JMPTBL (L(38bytes), L(table_64bytes))
.int JMPTBL (L(39bytes), L(table_64bytes))
.int JMPTBL (L(40bytes), L(table_64bytes))
.int JMPTBL (L(41bytes), L(table_64bytes))
.int JMPTBL (L(42bytes), L(table_64bytes))
.int JMPTBL (L(43bytes), L(table_64bytes))
.int JMPTBL (L(44bytes), L(table_64bytes))
.int JMPTBL (L(45bytes), L(table_64bytes))
.int JMPTBL (L(46bytes), L(table_64bytes))
.int JMPTBL (L(47bytes), L(table_64bytes))
.int JMPTBL (L(48bytes), L(table_64bytes))
.int JMPTBL (L(49bytes), L(table_64bytes))
.int JMPTBL (L(50bytes), L(table_64bytes))
.int JMPTBL (L(51bytes), L(table_64bytes))
.int JMPTBL (L(52bytes), L(table_64bytes))
.int JMPTBL (L(53bytes), L(table_64bytes))
.int JMPTBL (L(54bytes), L(table_64bytes))
.int JMPTBL (L(55bytes), L(table_64bytes))
.int JMPTBL (L(56bytes), L(table_64bytes))
.int JMPTBL (L(57bytes), L(table_64bytes))
.int JMPTBL (L(58bytes), L(table_64bytes))
.int JMPTBL (L(59bytes), L(table_64bytes))
.int JMPTBL (L(60bytes), L(table_64bytes))
.int JMPTBL (L(61bytes), L(table_64bytes))
.int JMPTBL (L(62bytes), L(table_64bytes))
.int JMPTBL (L(63bytes), L(table_64bytes))
.int JMPTBL (L(64bytes), L(table_64bytes))
#else
L(table_64bytes):
.int JMPTBL (L(0bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(4bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(8bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(12bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(16bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(20bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(24bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(28bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(32bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(36bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(40bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(44bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(48bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(52bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(56bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(60bytes), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(unreal_case), L(table_64bytes))
.int JMPTBL (L(64bytes), L(table_64bytes))
#endif
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