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04277e02d7
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1019 lines
24 KiB
ArmAsm
1019 lines
24 KiB
ArmAsm
/* wcscmp with SSE2
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Copyright (C) 2011-2019 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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# define CFI_PUSH(REG) \
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cfi_adjust_cfa_offset (4); \
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cfi_rel_offset (REG, 0)
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# define CFI_POP(REG) \
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cfi_adjust_cfa_offset (-4); \
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cfi_restore (REG)
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# define PUSH(REG) pushl REG; CFI_PUSH (REG)
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# define POP(REG) popl REG; CFI_POP (REG)
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# define ENTRANCE PUSH(%esi); PUSH(%edi)
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# define RETURN POP(%edi); POP(%esi); ret; CFI_PUSH(%esi); CFI_PUSH(%edi);
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# define PARMS 4
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# define STR1 PARMS
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# define STR2 STR1+4
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/* Note: wcscmp uses signed comparison, not unsugned as in strcmp function. */
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.text
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ENTRY (__wcscmp_sse2)
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/*
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* This implementation uses SSE to compare up to 16 bytes at a time.
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*/
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mov STR1(%esp), %edx
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mov STR2(%esp), %eax
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mov (%eax), %ecx
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cmp %ecx, (%edx)
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jne L(neq)
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test %ecx, %ecx
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jz L(eq)
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mov 4(%eax), %ecx
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cmp %ecx, 4(%edx)
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jne L(neq)
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test %ecx, %ecx
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jz L(eq)
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mov 8(%eax), %ecx
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cmp %ecx, 8(%edx)
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jne L(neq)
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test %ecx, %ecx
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jz L(eq)
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mov 12(%eax), %ecx
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cmp %ecx, 12(%edx)
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jne L(neq)
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test %ecx, %ecx
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jz L(eq)
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ENTRANCE
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add $16, %eax
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add $16, %edx
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mov %eax, %esi
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mov %edx, %edi
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pxor %xmm0, %xmm0 /* clear %xmm0 for null char checks */
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mov %al, %ch
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mov %dl, %cl
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and $63, %eax /* esi alignment in cache line */
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and $63, %edx /* edi alignment in cache line */
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and $15, %cl
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jz L(continue_00)
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cmp $16, %edx
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jb L(continue_0)
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cmp $32, %edx
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jb L(continue_16)
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cmp $48, %edx
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jb L(continue_32)
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L(continue_48):
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and $15, %ch
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jz L(continue_48_00)
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cmp $16, %eax
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jb L(continue_0_48)
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cmp $32, %eax
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jb L(continue_16_48)
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cmp $48, %eax
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jb L(continue_32_48)
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.p2align 4
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L(continue_48_48):
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mov (%esi), %ecx
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cmp %ecx, (%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 4(%esi), %ecx
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cmp %ecx, 4(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 8(%esi), %ecx
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cmp %ecx, 8(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 12(%esi), %ecx
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cmp %ecx, 12(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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movdqu 16(%edi), %xmm1
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movdqu 16(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_16)
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movdqu 32(%edi), %xmm1
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movdqu 32(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_32)
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movdqu 48(%edi), %xmm1
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movdqu 48(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_48)
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add $64, %esi
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add $64, %edi
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jmp L(continue_48_48)
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L(continue_0):
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and $15, %ch
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jz L(continue_0_00)
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cmp $16, %eax
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jb L(continue_0_0)
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cmp $32, %eax
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jb L(continue_0_16)
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cmp $48, %eax
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jb L(continue_0_32)
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.p2align 4
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L(continue_0_48):
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mov (%esi), %ecx
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cmp %ecx, (%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 4(%esi), %ecx
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cmp %ecx, 4(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 8(%esi), %ecx
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cmp %ecx, 8(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 12(%esi), %ecx
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cmp %ecx, 12(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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movdqu 16(%edi), %xmm1
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movdqu 16(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_16)
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movdqu 32(%edi), %xmm1
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movdqu 32(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_32)
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mov 48(%esi), %ecx
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cmp %ecx, 48(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 52(%esi), %ecx
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cmp %ecx, 52(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 56(%esi), %ecx
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cmp %ecx, 56(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 60(%esi), %ecx
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cmp %ecx, 60(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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add $64, %esi
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add $64, %edi
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jmp L(continue_0_48)
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.p2align 4
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L(continue_00):
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and $15, %ch
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jz L(continue_00_00)
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cmp $16, %eax
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jb L(continue_00_0)
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cmp $32, %eax
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jb L(continue_00_16)
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cmp $48, %eax
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jb L(continue_00_32)
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.p2align 4
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L(continue_00_48):
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pcmpeqd (%edi), %xmm0
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mov (%edi), %eax
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pmovmskb %xmm0, %ecx
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test %ecx, %ecx
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jnz L(less4_double_words1)
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cmp (%esi), %eax
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jne L(nequal)
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mov 4(%edi), %eax
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cmp 4(%esi), %eax
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jne L(nequal)
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mov 8(%edi), %eax
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cmp 8(%esi), %eax
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jne L(nequal)
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mov 12(%edi), %eax
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cmp 12(%esi), %eax
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jne L(nequal)
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movdqu 16(%esi), %xmm2
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pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
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pcmpeqd 16(%edi), %xmm2 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm2 /* packed sub of comparison results*/
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pmovmskb %xmm2, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_16)
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movdqu 32(%esi), %xmm2
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pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
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pcmpeqd 32(%edi), %xmm2 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm2 /* packed sub of comparison results*/
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pmovmskb %xmm2, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_32)
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movdqu 48(%esi), %xmm2
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pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
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pcmpeqd 48(%edi), %xmm2 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm2 /* packed sub of comparison results*/
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pmovmskb %xmm2, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_48)
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add $64, %esi
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add $64, %edi
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jmp L(continue_00_48)
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.p2align 4
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L(continue_32):
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and $15, %ch
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jz L(continue_32_00)
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cmp $16, %eax
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jb L(continue_0_32)
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cmp $32, %eax
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jb L(continue_16_32)
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cmp $48, %eax
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jb L(continue_32_32)
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.p2align 4
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L(continue_32_48):
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mov (%esi), %ecx
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cmp %ecx, (%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 4(%esi), %ecx
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cmp %ecx, 4(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 8(%esi), %ecx
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cmp %ecx, 8(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 12(%esi), %ecx
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cmp %ecx, 12(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 16(%esi), %ecx
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cmp %ecx, 16(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 20(%esi), %ecx
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cmp %ecx, 20(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 24(%esi), %ecx
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cmp %ecx, 24(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 28(%esi), %ecx
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cmp %ecx, 28(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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movdqu 32(%edi), %xmm1
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movdqu 32(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_32)
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movdqu 48(%edi), %xmm1
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movdqu 48(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results */
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_48)
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add $64, %esi
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add $64, %edi
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jmp L(continue_32_48)
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.p2align 4
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L(continue_16):
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and $15, %ch
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jz L(continue_16_00)
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cmp $16, %eax
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jb L(continue_0_16)
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cmp $32, %eax
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jb L(continue_16_16)
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cmp $48, %eax
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jb L(continue_16_32)
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.p2align 4
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L(continue_16_48):
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mov (%esi), %ecx
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cmp %ecx, (%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 4(%esi), %ecx
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cmp %ecx, 4(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 8(%esi), %ecx
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cmp %ecx, 8(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 12(%esi), %ecx
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cmp %ecx, 12(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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movdqu 16(%edi), %xmm1
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movdqu 16(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_16)
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mov 32(%esi), %ecx
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cmp %ecx, 32(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 36(%esi), %ecx
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cmp %ecx, 36(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 40(%esi), %ecx
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cmp %ecx, 40(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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mov 44(%esi), %ecx
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cmp %ecx, 44(%edi)
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jne L(nequal)
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test %ecx, %ecx
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jz L(equal)
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movdqu 48(%edi), %xmm1
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movdqu 48(%esi), %xmm2
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_48)
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add $64, %esi
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add $64, %edi
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jmp L(continue_16_48)
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.p2align 4
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L(continue_00_00):
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movdqa (%edi), %xmm1
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd (%esi), %xmm1 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm1 /* packed sub of comparison results*/
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pmovmskb %xmm1, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words)
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movdqa 16(%edi), %xmm3
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pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
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pcmpeqd 16(%esi), %xmm3 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm3 /* packed sub of comparison results*/
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pmovmskb %xmm3, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
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jnz L(less4_double_words_16)
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movdqa 32(%edi), %xmm5
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pcmpeqd %xmm5, %xmm0 /* Any null double_word? */
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pcmpeqd 32(%esi), %xmm5 /* compare first 4 double_words for equality */
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psubb %xmm0, %xmm5 /* packed sub of comparison results*/
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pmovmskb %xmm5, %edx
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sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_32)
|
|
|
|
movdqa 48(%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 48(%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_48)
|
|
|
|
add $64, %esi
|
|
add $64, %edi
|
|
jmp L(continue_00_00)
|
|
|
|
.p2align 4
|
|
L(continue_00_32):
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%edi), %xmm2 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm2 /* packed sub of comparison results*/
|
|
pmovmskb %xmm2, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
add $16, %esi
|
|
add $16, %edi
|
|
jmp L(continue_00_48)
|
|
|
|
.p2align 4
|
|
L(continue_00_16):
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%edi), %xmm2 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm2 /* packed sub of comparison results*/
|
|
pmovmskb %xmm2, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
movdqu 16(%esi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%edi), %xmm2 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm2 /* packed sub of comparison results*/
|
|
pmovmskb %xmm2, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
add $32, %esi
|
|
add $32, %edi
|
|
jmp L(continue_00_48)
|
|
|
|
.p2align 4
|
|
L(continue_00_0):
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%edi), %xmm2 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm2 /* packed sub of comparison results*/
|
|
pmovmskb %xmm2, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
movdqu 16(%esi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%edi), %xmm2 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm2 /* packed sub of comparison results*/
|
|
pmovmskb %xmm2, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
movdqu 32(%esi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 32(%edi), %xmm2 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm2 /* packed sub of comparison results*/
|
|
pmovmskb %xmm2, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_32)
|
|
|
|
add $48, %esi
|
|
add $48, %edi
|
|
jmp L(continue_00_48)
|
|
|
|
.p2align 4
|
|
L(continue_48_00):
|
|
pcmpeqd (%esi), %xmm0
|
|
mov (%edi), %eax
|
|
pmovmskb %xmm0, %ecx
|
|
test %ecx, %ecx
|
|
jnz L(less4_double_words1)
|
|
|
|
cmp (%esi), %eax
|
|
jne L(nequal)
|
|
|
|
mov 4(%edi), %eax
|
|
cmp 4(%esi), %eax
|
|
jne L(nequal)
|
|
|
|
mov 8(%edi), %eax
|
|
cmp 8(%esi), %eax
|
|
jne L(nequal)
|
|
|
|
mov 12(%edi), %eax
|
|
cmp 12(%esi), %eax
|
|
jne L(nequal)
|
|
|
|
movdqu 16(%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
movdqu 32(%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 32(%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_32)
|
|
|
|
movdqu 48(%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 48(%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_48)
|
|
|
|
add $64, %esi
|
|
add $64, %edi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_32_00):
|
|
movdqu (%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
add $16, %esi
|
|
add $16, %edi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_16_00):
|
|
movdqu (%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
movdqu 16(%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
add $32, %esi
|
|
add $32, %edi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_0_00):
|
|
movdqu (%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
movdqu 16(%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
movdqu 32(%edi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 32(%esi), %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_32)
|
|
|
|
add $48, %esi
|
|
add $48, %edi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_32_32):
|
|
movdqu (%edi), %xmm1
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
add $16, %esi
|
|
add $16, %edi
|
|
jmp L(continue_48_48)
|
|
|
|
.p2align 4
|
|
L(continue_16_16):
|
|
movdqu (%edi), %xmm1
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
movdqu 16(%edi), %xmm3
|
|
movdqu 16(%esi), %xmm4
|
|
pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm4, %xmm3 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm3 /* packed sub of comparison results*/
|
|
pmovmskb %xmm3, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
add $32, %esi
|
|
add $32, %edi
|
|
jmp L(continue_48_48)
|
|
|
|
.p2align 4
|
|
L(continue_0_0):
|
|
movdqu (%edi), %xmm1
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
movdqu 16(%edi), %xmm3
|
|
movdqu 16(%esi), %xmm4
|
|
pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm4, %xmm3 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm3 /* packed sub of comparison results*/
|
|
pmovmskb %xmm3, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
movdqu 32(%edi), %xmm1
|
|
movdqu 32(%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_32)
|
|
|
|
add $48, %esi
|
|
add $48, %edi
|
|
jmp L(continue_48_48)
|
|
|
|
.p2align 4
|
|
L(continue_0_16):
|
|
movdqu (%edi), %xmm1
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
movdqu 16(%edi), %xmm1
|
|
movdqu 16(%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_16)
|
|
|
|
add $32, %esi
|
|
add $32, %edi
|
|
jmp L(continue_32_48)
|
|
|
|
.p2align 4
|
|
L(continue_0_32):
|
|
movdqu (%edi), %xmm1
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
add $16, %esi
|
|
add $16, %edi
|
|
jmp L(continue_16_48)
|
|
|
|
.p2align 4
|
|
L(continue_16_32):
|
|
movdqu (%edi), %xmm1
|
|
movdqu (%esi), %xmm2
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
|
|
psubb %xmm0, %xmm1 /* packed sub of comparison results*/
|
|
pmovmskb %xmm1, %edx
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words)
|
|
|
|
add $16, %esi
|
|
add $16, %edi
|
|
jmp L(continue_32_48)
|
|
|
|
.p2align 4
|
|
L(less4_double_words1):
|
|
cmp (%esi), %eax
|
|
jne L(nequal)
|
|
test %eax, %eax
|
|
jz L(equal)
|
|
|
|
mov 4(%esi), %ecx
|
|
cmp %ecx, 4(%edi)
|
|
jne L(nequal)
|
|
test %ecx, %ecx
|
|
jz L(equal)
|
|
|
|
mov 8(%esi), %ecx
|
|
cmp %ecx, 8(%edi)
|
|
jne L(nequal)
|
|
test %ecx, %ecx
|
|
jz L(equal)
|
|
|
|
mov 12(%esi), %ecx
|
|
cmp %ecx, 12(%edi)
|
|
jne L(nequal)
|
|
xor %eax, %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(less4_double_words):
|
|
xor %eax, %eax
|
|
test %dl, %dl
|
|
jz L(next_two_double_words)
|
|
and $15, %dl
|
|
jz L(second_double_word)
|
|
mov (%esi), %ecx
|
|
cmp %ecx, (%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(second_double_word):
|
|
mov 4(%esi), %ecx
|
|
cmp %ecx, 4(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(next_two_double_words):
|
|
and $15, %dh
|
|
jz L(fourth_double_word)
|
|
mov 8(%esi), %ecx
|
|
cmp %ecx, 8(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(fourth_double_word):
|
|
mov 12(%esi), %ecx
|
|
cmp %ecx, 12(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(less4_double_words_16):
|
|
xor %eax, %eax
|
|
test %dl, %dl
|
|
jz L(next_two_double_words_16)
|
|
and $15, %dl
|
|
jz L(second_double_word_16)
|
|
mov 16(%esi), %ecx
|
|
cmp %ecx, 16(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(second_double_word_16):
|
|
mov 20(%esi), %ecx
|
|
cmp %ecx, 20(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(next_two_double_words_16):
|
|
and $15, %dh
|
|
jz L(fourth_double_word_16)
|
|
mov 24(%esi), %ecx
|
|
cmp %ecx, 24(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(fourth_double_word_16):
|
|
mov 28(%esi), %ecx
|
|
cmp %ecx, 28(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(less4_double_words_32):
|
|
xor %eax, %eax
|
|
test %dl, %dl
|
|
jz L(next_two_double_words_32)
|
|
and $15, %dl
|
|
jz L(second_double_word_32)
|
|
mov 32(%esi), %ecx
|
|
cmp %ecx, 32(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(second_double_word_32):
|
|
mov 36(%esi), %ecx
|
|
cmp %ecx, 36(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(next_two_double_words_32):
|
|
and $15, %dh
|
|
jz L(fourth_double_word_32)
|
|
mov 40(%esi), %ecx
|
|
cmp %ecx, 40(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(fourth_double_word_32):
|
|
mov 44(%esi), %ecx
|
|
cmp %ecx, 44(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(less4_double_words_48):
|
|
xor %eax, %eax
|
|
test %dl, %dl
|
|
jz L(next_two_double_words_48)
|
|
and $15, %dl
|
|
jz L(second_double_word_48)
|
|
mov 48(%esi), %ecx
|
|
cmp %ecx, 48(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(second_double_word_48):
|
|
mov 52(%esi), %ecx
|
|
cmp %ecx, 52(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(next_two_double_words_48):
|
|
and $15, %dh
|
|
jz L(fourth_double_word_48)
|
|
mov 56(%esi), %ecx
|
|
cmp %ecx, 56(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(fourth_double_word_48):
|
|
mov 60(%esi), %ecx
|
|
cmp %ecx, 60(%edi)
|
|
jne L(nequal)
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(nequal):
|
|
mov $1, %eax
|
|
jg L(return)
|
|
neg %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(return):
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(equal):
|
|
xorl %eax, %eax
|
|
RETURN
|
|
|
|
CFI_POP (%edi)
|
|
CFI_POP (%esi)
|
|
|
|
.p2align 4
|
|
L(neq):
|
|
mov $1, %eax
|
|
jg L(neq_bigger)
|
|
neg %eax
|
|
|
|
L(neq_bigger):
|
|
ret
|
|
|
|
.p2align 4
|
|
L(eq):
|
|
xorl %eax, %eax
|
|
ret
|
|
|
|
END (__wcscmp_sse2)
|
|
#endif
|