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glibc/sysdeps/x86_64/multiarch/memcmp-ssse3.S
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/* memcmp with SSSE3, wmemcmp with SSSE3 | |
Copyright (C) 2011 Free Software Foundation, Inc. | |
Contributed by Intel Corporation. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, write to the Free | |
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
02111-1307 USA. */ | |
#ifndef NOT_IN_libc | |
# include <sysdep.h> | |
# ifndef MEMCMP | |
# define MEMCMP __memcmp_ssse3 | |
# endif | |
# ifndef ALIGN | |
# define ALIGN(n) .p2align n | |
# endif | |
/* Warning! | |
wmemcmp has to use SIGNED comparison for elements. | |
memcmp has to use UNSIGNED comparison for elemnts. | |
*/ | |
atom_text_section | |
ENTRY (MEMCMP) | |
# ifdef USE_AS_WMEMCMP | |
shl $2, %rdx | |
test %rdx, %rdx | |
jz L(equal) | |
# endif | |
mov %rdx, %rcx | |
mov %rdi, %rdx | |
cmp $48, %rcx; | |
jae L(48bytesormore) /* LEN => 48 */ | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
/* ECX >= 32. */ | |
L(48bytesormore): | |
movdqu (%rdi), %xmm3 | |
movdqu (%rsi), %xmm0 | |
pcmpeqb %xmm0, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 16(%rdi), %rdi | |
lea 16(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(less16bytes) | |
mov %edi, %edx | |
and $0xf, %edx | |
xor %rdx, %rdi | |
sub %rdx, %rsi | |
add %rdx, %rcx | |
mov %esi, %edx | |
and $0xf, %edx | |
jz L(shr_0) | |
xor %rdx, %rsi | |
# 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) | |
ALIGN (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 | |
ALIGN (4) | |
L(shr_0): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
jae L(shr_0_gobble) | |
xor %eax, %eax | |
movdqa (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 16(%rsi), %xmm2 | |
pcmpeqb 16(%rdi), %xmm2 | |
pand %xmm1, %xmm2 | |
pmovmskb %xmm2, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_0_gobble): | |
movdqa (%rsi), %xmm0 | |
xor %eax, %eax | |
pcmpeqb (%rdi), %xmm0 | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm2 | |
pcmpeqb 16(%rdi), %xmm2 | |
L(shr_0_gobble_loop): | |
pand %xmm0, %xmm2 | |
sub $32, %rcx | |
pmovmskb %xmm2, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 32(%rsi), %xmm0 | |
movdqa 48(%rsi), %xmm2 | |
sbb $0xffff, %edx | |
pcmpeqb 32(%rdi), %xmm0 | |
pcmpeqb 48(%rdi), %xmm2 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
jz L(shr_0_gobble_loop) | |
pand %xmm0, %xmm2 | |
cmp $0, %rcx | |
jge L(next) | |
inc %edx | |
add $32, %rcx | |
L(next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm2, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# ifndef USE_AS_WMEMCMP | |
ALIGN (4) | |
L(shr_1): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_1_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $1, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $1, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $1, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_1_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $1, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $1, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_1_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $1, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $1, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_1_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_1_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_1_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 1(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_2): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_2_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $2, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $2, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $2, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_2_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $2, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $2, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_2_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $2, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $2, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_2_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_2_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_2_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 2(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_3): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_3_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $3, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $3, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $3, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_3_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $3, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $3, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_3_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $3, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $3, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_3_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_3_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_3_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 3(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# endif | |
ALIGN (4) | |
L(shr_4): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_4_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $4, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $4, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $4, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_4_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $4, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $4, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_4_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $4, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $4, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_4_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_4_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_4_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 4(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# ifndef USE_AS_WMEMCMP | |
ALIGN (4) | |
L(shr_5): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_5_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $5, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $5, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $5, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_5_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $5, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $5, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_5_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $5, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $5, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_5_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_5_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_5_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 5(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_6): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_6_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $6, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $6, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $6, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_6_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $6, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $6, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_6_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $6, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $6, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_6_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_6_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_6_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 6(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_7): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_7_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $7, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $7, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $7, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_7_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $7, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $7, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_7_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $7, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $7, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_7_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_7_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_7_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 7(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# endif | |
ALIGN (4) | |
L(shr_8): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_8_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $8, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $8, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $8, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_8_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $8, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $8, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_8_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $8, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $8, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_8_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_8_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_8_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 8(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# ifndef USE_AS_WMEMCMP | |
ALIGN (4) | |
L(shr_9): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_9_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $9, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $9, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $9, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_9_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $9, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $9, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_9_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $9, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $9, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_9_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_9_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_9_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 9(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_10): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_10_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $10, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $10, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $10, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_10_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $10, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $10, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_10_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $10, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $10, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_10_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_10_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_10_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 10(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_11): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_11_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $11, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $11, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $11, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_11_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $11, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $11, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_11_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $11, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $11, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_11_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_11_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_11_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 11(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# endif | |
ALIGN (4) | |
L(shr_12): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_12_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $12, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $12, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $12, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_12_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $12, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $12, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_12_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $12, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $12, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_12_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_12_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_12_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 12(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# ifndef USE_AS_WMEMCMP | |
ALIGN (4) | |
L(shr_13): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_13_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $13, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $13, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $13, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_13_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $13, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $13, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_13_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $13, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $13, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_13_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_13_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_13_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 13(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_14): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_14_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $14, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $14, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $14, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_14_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $14, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $14, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_14_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $14, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $14, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_14_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_14_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_14_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 14(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_15): | |
cmp $80, %rcx | |
lea -48(%rcx), %rcx | |
mov %edx, %eax | |
jae L(shr_15_gobble) | |
movdqa 16(%rsi), %xmm1 | |
movdqa %xmm1, %xmm2 | |
palignr $15, (%rsi), %xmm1 | |
pcmpeqb (%rdi), %xmm1 | |
movdqa 32(%rsi), %xmm3 | |
palignr $15, %xmm2, %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
pand %xmm1, %xmm3 | |
pmovmskb %xmm3, %edx | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
add $15, %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
ALIGN (4) | |
L(shr_15_gobble): | |
sub $32, %rcx | |
movdqa 16(%rsi), %xmm0 | |
palignr $15, (%rsi), %xmm0 | |
pcmpeqb (%rdi), %xmm0 | |
movdqa 32(%rsi), %xmm3 | |
palignr $15, 16(%rsi), %xmm3 | |
pcmpeqb 16(%rdi), %xmm3 | |
L(shr_15_gobble_loop): | |
pand %xmm0, %xmm3 | |
sub $32, %rcx | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
movdqa 64(%rsi), %xmm3 | |
palignr $15, 48(%rsi), %xmm3 | |
sbb $0xffff, %edx | |
movdqa 48(%rsi), %xmm0 | |
palignr $15, 32(%rsi), %xmm0 | |
pcmpeqb 32(%rdi), %xmm0 | |
lea 32(%rsi), %rsi | |
pcmpeqb 48(%rdi), %xmm3 | |
lea 32(%rdi), %rdi | |
jz L(shr_15_gobble_loop) | |
pand %xmm0, %xmm3 | |
cmp $0, %rcx | |
jge L(shr_15_gobble_next) | |
inc %edx | |
add $32, %rcx | |
L(shr_15_gobble_next): | |
test %edx, %edx | |
jnz L(exit) | |
pmovmskb %xmm3, %edx | |
movdqa %xmm0, %xmm1 | |
lea 32(%rdi), %rdi | |
lea 32(%rsi), %rsi | |
sub $0xffff, %edx | |
jnz L(exit) | |
lea 15(%rsi), %rsi | |
add %rcx, %rsi | |
add %rcx, %rdi | |
jmp L(less48bytes) | |
# endif | |
ALIGN (4) | |
L(exit): | |
pmovmskb %xmm1, %r8d | |
sub $0xffff, %r8d | |
jz L(first16bytes) | |
lea -16(%rsi), %rsi | |
lea -16(%rdi), %rdi | |
mov %r8d, %edx | |
L(first16bytes): | |
add %rax, %rsi | |
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) | |
movzbl -9(%rdi), %eax | |
movzbl -9(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(Byte16): | |
movzbl -16(%rdi), %eax | |
movzbl -16(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(Byte17): | |
movzbl -15(%rdi), %eax | |
movzbl -15(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(Byte18): | |
movzbl -14(%rdi), %eax | |
movzbl -14(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(Byte19): | |
movzbl -13(%rdi), %eax | |
movzbl -13(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(Byte20): | |
movzbl -12(%rdi), %eax | |
movzbl -12(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(Byte21): | |
movzbl -11(%rdi), %eax | |
movzbl -11(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(Byte22): | |
movzbl -10(%rdi), %eax | |
movzbl -10(%rsi), %edx | |
sub %edx, %eax | |
ret | |
ALIGN (4) | |
L(next_24_bytes): | |
lea 8(%rdi), %rdi | |
lea 8(%rsi), %rsi | |
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) | |
mov -9(%rdi), %eax | |
and $0xff, %eax | |
mov -9(%rsi), %edx | |
and $0xff, %edx | |
sub %edx, %eax | |
ret | |
# else | |
/* special for wmemcmp */ | |
xor %eax, %eax | |
test %dl, %dl | |
jz L(next_two_double_words) | |
and $15, %dl | |
jz L(second_double_word) | |
mov -16(%rdi), %eax | |
cmp -16(%rsi), %eax | |
jne L(find_diff) | |
ret | |
ALIGN (4) | |
L(second_double_word): | |
mov -12(%rdi), %eax | |
cmp -12(%rsi), %eax | |
jne L(find_diff) | |
ret | |
ALIGN (4) | |
L(next_two_double_words): | |
and $15, %dh | |
jz L(fourth_double_word) | |
mov -8(%rdi), %eax | |
cmp -8(%rsi), %eax | |
jne L(find_diff) | |
ret | |
ALIGN (4) | |
L(fourth_double_word): | |
mov -4(%rdi), %eax | |
cmp -4(%rsi), %eax | |
jne L(find_diff) | |
ret | |
# endif | |
ALIGN (4) | |
L(less48bytes): | |
cmp $8, %ecx | |
jae L(more8bytes) | |
cmp $0, %ecx | |
je L(0bytes) | |
# ifndef USE_AS_WMEMCMP | |
cmp $1, %ecx | |
je L(1bytes) | |
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 | |
ALIGN (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 | |
ALIGN (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 | |
ALIGN (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 | |
ALIGN (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 | |
ALIGN (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) | |
ALIGN (4) | |
L(44bytes): | |
movl -44(%rdi), %eax | |
movl -44(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(40bytes): | |
movl -40(%rdi), %eax | |
movl -40(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(36bytes): | |
movl -36(%rdi), %eax | |
movl -36(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(32bytes): | |
movl -32(%rdi), %eax | |
movl -32(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(28bytes): | |
movl -28(%rdi), %eax | |
movl -28(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(24bytes): | |
movl -24(%rdi), %eax | |
movl -24(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(20bytes): | |
movl -20(%rdi), %eax | |
movl -20(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(16bytes): | |
movl -16(%rdi), %eax | |
movl -16(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(12bytes): | |
movl -12(%rdi), %eax | |
movl -12(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(8bytes): | |
movl -8(%rdi), %eax | |
movl -8(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(4bytes): | |
movl -4(%rdi), %eax | |
movl -4(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(0bytes): | |
xor %eax, %eax | |
ret | |
# else | |
ALIGN (4) | |
L(44bytes): | |
movl -44(%rdi), %eax | |
cmp -44(%rsi), %eax | |
jne L(find_diff) | |
L(40bytes): | |
movl -40(%rdi), %eax | |
cmp -40(%rsi), %eax | |
jne L(find_diff) | |
L(36bytes): | |
movl -36(%rdi), %eax | |
cmp -36(%rsi), %eax | |
jne L(find_diff) | |
L(32bytes): | |
movl -32(%rdi), %eax | |
cmp -32(%rsi), %eax | |
jne L(find_diff) | |
L(28bytes): | |
movl -28(%rdi), %eax | |
cmp -28(%rsi), %eax | |
jne L(find_diff) | |
L(24bytes): | |
movl -24(%rdi), %eax | |
cmp -24(%rsi), %eax | |
jne L(find_diff) | |
L(20bytes): | |
movl -20(%rdi), %eax | |
cmp -20(%rsi), %eax | |
jne L(find_diff) | |
L(16bytes): | |
movl -16(%rdi), %eax | |
cmp -16(%rsi), %eax | |
jne L(find_diff) | |
L(12bytes): | |
movl -12(%rdi), %eax | |
cmp -12(%rsi), %eax | |
jne L(find_diff) | |
L(8bytes): | |
movl -8(%rdi), %eax | |
cmp -8(%rsi), %eax | |
jne L(find_diff) | |
L(4bytes): | |
movl -4(%rdi), %eax | |
cmp -4(%rsi), %eax | |
jne L(find_diff) | |
L(0bytes): | |
xor %eax, %eax | |
ret | |
# endif | |
# ifndef USE_AS_WMEMCMP | |
ALIGN (4) | |
L(45bytes): | |
movl -45(%rdi), %eax | |
movl -45(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(41bytes): | |
movl -41(%rdi), %eax | |
movl -41(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(37bytes): | |
movl -37(%rdi), %eax | |
movl -37(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(33bytes): | |
movl -33(%rdi), %eax | |
movl -33(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(29bytes): | |
movl -29(%rdi), %eax | |
movl -29(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(25bytes): | |
movl -25(%rdi), %eax | |
movl -25(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(21bytes): | |
movl -21(%rdi), %eax | |
movl -21(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(17bytes): | |
movl -17(%rdi), %eax | |
movl -17(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(13bytes): | |
movl -13(%rdi), %eax | |
movl -13(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(9bytes): | |
movl -9(%rdi), %eax | |
movl -9(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(5bytes): | |
movl -5(%rdi), %eax | |
movl -5(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(1bytes): | |
movzbl -1(%rdi), %eax | |
cmpb -1(%rsi), %al | |
jne L(set) | |
xor %eax, %eax | |
ret | |
ALIGN (4) | |
L(46bytes): | |
movl -46(%rdi), %eax | |
movl -46(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(42bytes): | |
movl -42(%rdi), %eax | |
movl -42(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(38bytes): | |
movl -38(%rdi), %eax | |
movl -38(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(34bytes): | |
movl -34(%rdi), %eax | |
movl -34(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(30bytes): | |
movl -30(%rdi), %eax | |
movl -30(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(26bytes): | |
movl -26(%rdi), %eax | |
movl -26(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(22bytes): | |
movl -22(%rdi), %eax | |
movl -22(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(18bytes): | |
movl -18(%rdi), %eax | |
movl -18(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(14bytes): | |
movl -14(%rdi), %eax | |
movl -14(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(10bytes): | |
movl -10(%rdi), %eax | |
movl -10(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(6bytes): | |
movl -6(%rdi), %eax | |
movl -6(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(2bytes): | |
movzwl -2(%rdi), %eax | |
movzwl -2(%rsi), %ecx | |
cmpb %cl, %al | |
jne L(set) | |
cmp %ecx, %eax | |
jne L(set) | |
xor %eax, %eax | |
ret | |
ALIGN (4) | |
L(47bytes): | |
movl -47(%rdi), %eax | |
movl -47(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(43bytes): | |
movl -43(%rdi), %eax | |
movl -43(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(39bytes): | |
movl -39(%rdi), %eax | |
movl -39(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(35bytes): | |
movl -35(%rdi), %eax | |
movl -35(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(31bytes): | |
movl -31(%rdi), %eax | |
movl -31(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(27bytes): | |
movl -27(%rdi), %eax | |
movl -27(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(23bytes): | |
movl -23(%rdi), %eax | |
movl -23(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(19bytes): | |
movl -19(%rdi), %eax | |
movl -19(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(15bytes): | |
movl -15(%rdi), %eax | |
movl -15(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(11bytes): | |
movl -11(%rdi), %eax | |
movl -11(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(7bytes): | |
movl -7(%rdi), %eax | |
movl -7(%rsi), %ecx | |
cmp %ecx, %eax | |
jne L(find_diff) | |
L(3bytes): | |
movzwl -3(%rdi), %eax | |
movzwl -3(%rsi), %ecx | |
cmpb %cl, %al | |
jne L(set) | |
cmp %ecx, %eax | |
jne L(set) | |
movzbl -1(%rdi), %eax | |
cmpb -1(%rsi), %al | |
jne L(set) | |
xor %eax, %eax | |
ret | |
ALIGN (4) | |
L(find_diff): | |
cmpb %cl, %al | |
jne L(set) | |
cmpw %cx, %ax | |
jne L(set) | |
shr $16, %eax | |
shr $16, %ecx | |
cmpb %cl, %al | |
jne L(set) | |
/* We get there only if we already know there is a | |
difference. */ | |
cmp %ecx, %eax | |
L(set): | |
sbb %eax, %eax | |
sbb $-1, %eax | |
ret | |
# else | |
/* for wmemcmp */ | |
ALIGN (4) | |
L(find_diff): | |
mov $1, %eax | |
jg L(find_diff_bigger) | |
neg %eax | |
ret | |
ALIGN (4) | |
L(find_diff_bigger): | |
ret | |
# endif | |
ALIGN (4) | |
L(equal): | |
xor %eax, %eax | |
ret | |
END (MEMCMP) | |
#endif |