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https://sourceware.org/git/glibc.git
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1991 lines
32 KiB
ArmAsm
1991 lines
32 KiB
ArmAsm
/* memcmp with SSSE3, wmemcmp with SSSE3
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Copyright (C) 2011-2015 Free Software Foundation, Inc.
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Contributed by Intel Corporation.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#if IS_IN (libc)
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# include <sysdep.h>
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# ifndef MEMCMP
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# define MEMCMP __memcmp_ssse3
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# endif
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/* Warning!
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wmemcmp has to use SIGNED comparison for elements.
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memcmp has to use UNSIGNED comparison for elemnts.
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*/
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atom_text_section
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ENTRY (MEMCMP)
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# ifdef USE_AS_WMEMCMP
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shl $2, %rdx
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test %rdx, %rdx
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jz L(equal)
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# endif
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mov %rdx, %rcx
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mov %rdi, %rdx
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cmp $48, %rcx;
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jae L(48bytesormore) /* LEN => 48 */
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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/* ECX >= 32. */
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L(48bytesormore):
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movdqu (%rdi), %xmm3
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movdqu (%rsi), %xmm0
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pcmpeqb %xmm0, %xmm3
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pmovmskb %xmm3, %edx
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lea 16(%rdi), %rdi
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lea 16(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(less16bytes)
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mov %edi, %edx
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and $0xf, %edx
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xor %rdx, %rdi
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sub %rdx, %rsi
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add %rdx, %rcx
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mov %esi, %edx
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and $0xf, %edx
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jz L(shr_0)
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xor %rdx, %rsi
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# ifndef USE_AS_WMEMCMP
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cmp $8, %edx
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jae L(next_unaligned_table)
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cmp $0, %edx
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je L(shr_0)
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cmp $1, %edx
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je L(shr_1)
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cmp $2, %edx
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je L(shr_2)
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cmp $3, %edx
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je L(shr_3)
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cmp $4, %edx
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je L(shr_4)
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cmp $5, %edx
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je L(shr_5)
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cmp $6, %edx
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je L(shr_6)
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jmp L(shr_7)
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.p2align 2
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L(next_unaligned_table):
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cmp $8, %edx
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je L(shr_8)
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cmp $9, %edx
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je L(shr_9)
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cmp $10, %edx
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je L(shr_10)
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cmp $11, %edx
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je L(shr_11)
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cmp $12, %edx
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je L(shr_12)
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cmp $13, %edx
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je L(shr_13)
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cmp $14, %edx
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je L(shr_14)
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jmp L(shr_15)
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# else
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cmp $0, %edx
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je L(shr_0)
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cmp $4, %edx
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je L(shr_4)
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cmp $8, %edx
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je L(shr_8)
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jmp L(shr_12)
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# endif
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.p2align 4
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L(shr_0):
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cmp $80, %rcx
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lea -48(%rcx), %rcx
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jae L(shr_0_gobble)
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xor %eax, %eax
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movdqa (%rsi), %xmm1
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pcmpeqb (%rdi), %xmm1
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movdqa 16(%rsi), %xmm2
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pcmpeqb 16(%rdi), %xmm2
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pand %xmm1, %xmm2
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pmovmskb %xmm2, %edx
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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L(shr_0_gobble):
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movdqa (%rsi), %xmm0
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xor %eax, %eax
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pcmpeqb (%rdi), %xmm0
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sub $32, %rcx
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movdqa 16(%rsi), %xmm2
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pcmpeqb 16(%rdi), %xmm2
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L(shr_0_gobble_loop):
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pand %xmm0, %xmm2
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sub $32, %rcx
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pmovmskb %xmm2, %edx
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movdqa %xmm0, %xmm1
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movdqa 32(%rsi), %xmm0
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movdqa 48(%rsi), %xmm2
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sbb $0xffff, %edx
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pcmpeqb 32(%rdi), %xmm0
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pcmpeqb 48(%rdi), %xmm2
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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jz L(shr_0_gobble_loop)
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pand %xmm0, %xmm2
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cmp $0, %rcx
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jge L(next)
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inc %edx
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add $32, %rcx
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L(next):
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test %edx, %edx
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jnz L(exit)
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pmovmskb %xmm2, %edx
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movdqa %xmm0, %xmm1
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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# ifndef USE_AS_WMEMCMP
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.p2align 4
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L(shr_1):
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cmp $80, %rcx
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lea -48(%rcx), %rcx
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mov %edx, %eax
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jae L(shr_1_gobble)
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movdqa 16(%rsi), %xmm1
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movdqa %xmm1, %xmm2
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palignr $1, (%rsi), %xmm1
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pcmpeqb (%rdi), %xmm1
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movdqa 32(%rsi), %xmm3
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palignr $1, %xmm2, %xmm3
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pcmpeqb 16(%rdi), %xmm3
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pand %xmm1, %xmm3
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pmovmskb %xmm3, %edx
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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add $1, %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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L(shr_1_gobble):
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sub $32, %rcx
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movdqa 16(%rsi), %xmm0
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palignr $1, (%rsi), %xmm0
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pcmpeqb (%rdi), %xmm0
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movdqa 32(%rsi), %xmm3
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palignr $1, 16(%rsi), %xmm3
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pcmpeqb 16(%rdi), %xmm3
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L(shr_1_gobble_loop):
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pand %xmm0, %xmm3
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sub $32, %rcx
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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movdqa 64(%rsi), %xmm3
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palignr $1, 48(%rsi), %xmm3
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sbb $0xffff, %edx
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movdqa 48(%rsi), %xmm0
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palignr $1, 32(%rsi), %xmm0
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pcmpeqb 32(%rdi), %xmm0
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lea 32(%rsi), %rsi
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pcmpeqb 48(%rdi), %xmm3
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lea 32(%rdi), %rdi
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jz L(shr_1_gobble_loop)
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pand %xmm0, %xmm3
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cmp $0, %rcx
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jge L(shr_1_gobble_next)
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inc %edx
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add $32, %rcx
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L(shr_1_gobble_next):
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test %edx, %edx
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jnz L(exit)
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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lea 1(%rsi), %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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L(shr_2):
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cmp $80, %rcx
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lea -48(%rcx), %rcx
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mov %edx, %eax
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jae L(shr_2_gobble)
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movdqa 16(%rsi), %xmm1
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movdqa %xmm1, %xmm2
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palignr $2, (%rsi), %xmm1
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pcmpeqb (%rdi), %xmm1
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movdqa 32(%rsi), %xmm3
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palignr $2, %xmm2, %xmm3
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pcmpeqb 16(%rdi), %xmm3
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pand %xmm1, %xmm3
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pmovmskb %xmm3, %edx
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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add $2, %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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L(shr_2_gobble):
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sub $32, %rcx
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movdqa 16(%rsi), %xmm0
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palignr $2, (%rsi), %xmm0
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pcmpeqb (%rdi), %xmm0
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movdqa 32(%rsi), %xmm3
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palignr $2, 16(%rsi), %xmm3
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pcmpeqb 16(%rdi), %xmm3
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L(shr_2_gobble_loop):
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pand %xmm0, %xmm3
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sub $32, %rcx
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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movdqa 64(%rsi), %xmm3
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palignr $2, 48(%rsi), %xmm3
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sbb $0xffff, %edx
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movdqa 48(%rsi), %xmm0
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palignr $2, 32(%rsi), %xmm0
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pcmpeqb 32(%rdi), %xmm0
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lea 32(%rsi), %rsi
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pcmpeqb 48(%rdi), %xmm3
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lea 32(%rdi), %rdi
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jz L(shr_2_gobble_loop)
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pand %xmm0, %xmm3
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cmp $0, %rcx
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jge L(shr_2_gobble_next)
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inc %edx
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add $32, %rcx
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L(shr_2_gobble_next):
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test %edx, %edx
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jnz L(exit)
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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lea 2(%rsi), %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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L(shr_3):
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cmp $80, %rcx
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lea -48(%rcx), %rcx
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mov %edx, %eax
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jae L(shr_3_gobble)
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movdqa 16(%rsi), %xmm1
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movdqa %xmm1, %xmm2
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palignr $3, (%rsi), %xmm1
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pcmpeqb (%rdi), %xmm1
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movdqa 32(%rsi), %xmm3
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palignr $3, %xmm2, %xmm3
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pcmpeqb 16(%rdi), %xmm3
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pand %xmm1, %xmm3
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pmovmskb %xmm3, %edx
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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add $3, %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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L(shr_3_gobble):
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sub $32, %rcx
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movdqa 16(%rsi), %xmm0
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palignr $3, (%rsi), %xmm0
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pcmpeqb (%rdi), %xmm0
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movdqa 32(%rsi), %xmm3
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palignr $3, 16(%rsi), %xmm3
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pcmpeqb 16(%rdi), %xmm3
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L(shr_3_gobble_loop):
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pand %xmm0, %xmm3
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sub $32, %rcx
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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movdqa 64(%rsi), %xmm3
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palignr $3, 48(%rsi), %xmm3
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sbb $0xffff, %edx
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movdqa 48(%rsi), %xmm0
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palignr $3, 32(%rsi), %xmm0
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pcmpeqb 32(%rdi), %xmm0
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lea 32(%rsi), %rsi
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pcmpeqb 48(%rdi), %xmm3
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lea 32(%rdi), %rdi
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jz L(shr_3_gobble_loop)
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pand %xmm0, %xmm3
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cmp $0, %rcx
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jge L(shr_3_gobble_next)
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inc %edx
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add $32, %rcx
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L(shr_3_gobble_next):
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test %edx, %edx
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jnz L(exit)
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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lea 3(%rsi), %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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# endif
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.p2align 4
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L(shr_4):
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cmp $80, %rcx
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lea -48(%rcx), %rcx
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mov %edx, %eax
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jae L(shr_4_gobble)
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movdqa 16(%rsi), %xmm1
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movdqa %xmm1, %xmm2
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palignr $4, (%rsi), %xmm1
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pcmpeqb (%rdi), %xmm1
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movdqa 32(%rsi), %xmm3
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palignr $4, %xmm2, %xmm3
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pcmpeqb 16(%rdi), %xmm3
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pand %xmm1, %xmm3
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pmovmskb %xmm3, %edx
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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add $4, %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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L(shr_4_gobble):
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sub $32, %rcx
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movdqa 16(%rsi), %xmm0
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palignr $4, (%rsi), %xmm0
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pcmpeqb (%rdi), %xmm0
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movdqa 32(%rsi), %xmm3
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palignr $4, 16(%rsi), %xmm3
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pcmpeqb 16(%rdi), %xmm3
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L(shr_4_gobble_loop):
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pand %xmm0, %xmm3
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sub $32, %rcx
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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movdqa 64(%rsi), %xmm3
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palignr $4, 48(%rsi), %xmm3
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sbb $0xffff, %edx
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movdqa 48(%rsi), %xmm0
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palignr $4, 32(%rsi), %xmm0
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pcmpeqb 32(%rdi), %xmm0
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lea 32(%rsi), %rsi
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pcmpeqb 48(%rdi), %xmm3
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lea 32(%rdi), %rdi
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jz L(shr_4_gobble_loop)
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pand %xmm0, %xmm3
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cmp $0, %rcx
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jge L(shr_4_gobble_next)
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inc %edx
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add $32, %rcx
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L(shr_4_gobble_next):
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test %edx, %edx
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jnz L(exit)
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pmovmskb %xmm3, %edx
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movdqa %xmm0, %xmm1
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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lea 4(%rsi), %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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# ifndef USE_AS_WMEMCMP
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.p2align 4
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L(shr_5):
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cmp $80, %rcx
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lea -48(%rcx), %rcx
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mov %edx, %eax
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jae L(shr_5_gobble)
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movdqa 16(%rsi), %xmm1
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movdqa %xmm1, %xmm2
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palignr $5, (%rsi), %xmm1
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pcmpeqb (%rdi), %xmm1
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movdqa 32(%rsi), %xmm3
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palignr $5, %xmm2, %xmm3
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pcmpeqb 16(%rdi), %xmm3
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pand %xmm1, %xmm3
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pmovmskb %xmm3, %edx
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lea 32(%rdi), %rdi
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lea 32(%rsi), %rsi
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sub $0xffff, %edx
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jnz L(exit)
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add $5, %rsi
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add %rcx, %rsi
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add %rcx, %rdi
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jmp L(less48bytes)
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.p2align 4
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|
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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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)
|
|
|
|
.p2align 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
|
|
.p2align 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
|
|
|
|
.p2align 4
|
|
L(Byte16):
|
|
movzbl -16(%rdi), %eax
|
|
movzbl -16(%rsi), %edx
|
|
sub %edx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(Byte17):
|
|
movzbl -15(%rdi), %eax
|
|
movzbl -15(%rsi), %edx
|
|
sub %edx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(Byte18):
|
|
movzbl -14(%rdi), %eax
|
|
movzbl -14(%rsi), %edx
|
|
sub %edx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(Byte19):
|
|
movzbl -13(%rdi), %eax
|
|
movzbl -13(%rsi), %edx
|
|
sub %edx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(Byte20):
|
|
movzbl -12(%rdi), %eax
|
|
movzbl -12(%rsi), %edx
|
|
sub %edx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(Byte21):
|
|
movzbl -11(%rdi), %eax
|
|
movzbl -11(%rsi), %edx
|
|
sub %edx, %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(Byte22):
|
|
movzbl -10(%rdi), %eax
|
|
movzbl -10(%rsi), %edx
|
|
sub %edx, %eax
|
|
ret
|
|
|
|
.p2align 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)
|
|
|
|
movzbl -9(%rdi), %eax
|
|
movzbl -9(%rsi), %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
|
|
|
|
.p2align 4
|
|
L(second_double_word):
|
|
mov -12(%rdi), %eax
|
|
cmp -12(%rsi), %eax
|
|
jne L(find_diff)
|
|
ret
|
|
|
|
.p2align 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
|
|
|
|
.p2align 4
|
|
L(fourth_double_word):
|
|
mov -4(%rdi), %eax
|
|
cmp -4(%rsi), %eax
|
|
jne L(find_diff)
|
|
ret
|
|
# endif
|
|
|
|
.p2align 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
|
|
|
|
.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(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):
|
|
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
|
|
.p2align 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
|
|
.p2align 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
|
|
|
|
.p2align 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
|
|
|
|
.p2align 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
|
|
|
|
.p2align 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 */
|
|
.p2align 4
|
|
L(find_diff):
|
|
mov $1, %eax
|
|
jg L(find_diff_bigger)
|
|
neg %eax
|
|
ret
|
|
|
|
.p2align 4
|
|
L(find_diff_bigger):
|
|
ret
|
|
# endif
|
|
|
|
.p2align 4
|
|
L(equal):
|
|
xor %eax, %eax
|
|
ret
|
|
|
|
END (MEMCMP)
|
|
#endif
|