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2f44ee08db
regcomp brings in references to wcscoll, which isn't in all the standards that contain regcomp. In turn, wcscoll brings in references to wcscmp, also not in all those standards. This patch fixes this by making those functions into weak aliases of __wcscoll and __wcscmp and calling those names instead as needed. Tested for x86_64 and x86 (testsuite, and that disassembly of installed shared libraries is unchanged by the patch). [BZ #18497] * wcsmbs/wcscmp.c [!WCSCMP] (WCSCMP): Define as __wcscmp instead of wcscmp. (wcscmp): Define as weak alias of WCSCMP. * wcsmbs/wcscoll.c (STRCOLL): Define as __wcscoll instead of wcscoll. (USE_HIDDEN_DEF): Define. [!USE_IN_EXTENDED_LOCALE_MODEL] (wcscoll): Define as weak alias of __wcscoll. Don't use libc_hidden_weak. * wcsmbs/wcscoll_l.c (STRCMP): Define as __wcscmp instead of wcscmp. * sysdeps/i386/i686/multiarch/wcscmp-c.c [SHARED] (libc_hidden_def): Define __GI___wcscmp instead of __GI_wcscmp. (weak_alias): Undefine and redefine. * sysdeps/i386/i686/multiarch/wcscmp.S (wcscmp): Rename to __wcscmp and define as weak alias of __wcscmp. * sysdeps/x86_64/wcscmp.S (wcscmp): Likewise. * include/wchar.h (__wcscmp): Declare. Use libc_hidden_proto. (__wcscoll): Likewise. (wcscmp): Don't use libc_hidden_proto. (wcscoll): Likewise. * posix/regcomp.c (build_range_exp): Call __wcscoll instead of wcscoll. * posix/regexec.c (check_node_accept_bytes): Likewise. * conform/Makefile (test-xfail-XPG3/regex.h/linknamespace): Remove variable. (test-xfail-XPG4/regex.h/linknamespace): Likewise. (test-xfail-POSIX/regex.h/linknamespace): Likewise.
951 lines
23 KiB
ArmAsm
951 lines
23 KiB
ArmAsm
/* Optimized wcscmp for x86-64 with SSE2.
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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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#include <sysdep.h>
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/* Note: wcscmp uses signed comparison, not unsighed as in strcmp function. */
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.text
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ENTRY (__wcscmp)
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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 %esi, %eax
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mov %edi, %edx
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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 /* rsi alignment in cache line */
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and $63, %edx /* rdi 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 (%rsi), %ecx
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cmp %ecx, (%rdi)
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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(%rsi), %ecx
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cmp %ecx, 4(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 8(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 12(%rdi)
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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(%rdi), %xmm1
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movdqu 16(%rsi), %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(%rdi), %xmm1
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movdqu 32(%rsi), %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(%rdi), %xmm1
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movdqu 48(%rsi), %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, %rsi
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add $64, %rdi
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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 (%rsi), %ecx
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cmp %ecx, (%rdi)
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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(%rsi), %ecx
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cmp %ecx, 4(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 8(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 12(%rdi)
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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(%rdi), %xmm1
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movdqu 16(%rsi), %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(%rdi), %xmm1
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movdqu 32(%rsi), %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(%rsi), %ecx
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cmp %ecx, 48(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 52(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 56(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 60(%rdi)
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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, %rsi
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add $64, %rdi
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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 (%rdi), %xmm0
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mov (%rdi), %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 (%rsi), %eax
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jne L(nequal)
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mov 4(%rdi), %eax
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cmp 4(%rsi), %eax
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jne L(nequal)
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mov 8(%rdi), %eax
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cmp 8(%rsi), %eax
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jne L(nequal)
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mov 12(%rdi), %eax
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cmp 12(%rsi), %eax
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jne L(nequal)
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movdqu 16(%rsi), %xmm2
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pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
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pcmpeqd 16(%rdi), %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(%rsi), %xmm2
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pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
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pcmpeqd 32(%rdi), %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(%rsi), %xmm2
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pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
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pcmpeqd 48(%rdi), %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, %rsi
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add $64, %rdi
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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 (%rsi), %ecx
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cmp %ecx, (%rdi)
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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(%rsi), %ecx
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cmp %ecx, 4(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 8(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 12(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 16(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 20(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 24(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 28(%rdi)
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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(%rdi), %xmm1
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movdqu 32(%rsi), %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(%rdi), %xmm1
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movdqu 48(%rsi), %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, %rsi
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add $64, %rdi
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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 (%rsi), %ecx
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cmp %ecx, (%rdi)
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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(%rsi), %ecx
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cmp %ecx, 4(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 8(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 12(%rdi)
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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(%rdi), %xmm1
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movdqu 16(%rsi), %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(%rsi), %ecx
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cmp %ecx, 32(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 36(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 40(%rdi)
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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(%rsi), %ecx
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cmp %ecx, 44(%rdi)
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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(%rdi), %xmm1
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movdqu 48(%rsi), %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, %rsi
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add $64, %rdi
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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 (%rdi), %xmm1
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd (%rsi), %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(%rdi), %xmm3
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pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
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pcmpeqd 16(%rsi), %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(%rdi), %xmm5
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pcmpeqd %xmm5, %xmm0 /* Any null double_word? */
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pcmpeqd 32(%rsi), %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 */
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jnz L(less4_double_words_32)
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movdqa 48(%rdi), %xmm1
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pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
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pcmpeqd 48(%rsi), %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
|
|
sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
|
|
jnz L(less4_double_words_48)
|
|
|
|
add $64, %rsi
|
|
add $64, %rdi
|
|
jmp L(continue_00_00)
|
|
|
|
.p2align 4
|
|
L(continue_00_32):
|
|
movdqu (%rsi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%rdi), %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, %rsi
|
|
add $16, %rdi
|
|
jmp L(continue_00_48)
|
|
|
|
.p2align 4
|
|
L(continue_00_16):
|
|
movdqu (%rsi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%rdi), %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(%rsi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%rdi), %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, %rsi
|
|
add $32, %rdi
|
|
jmp L(continue_00_48)
|
|
|
|
.p2align 4
|
|
L(continue_00_0):
|
|
movdqu (%rsi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%rdi), %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(%rsi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%rdi), %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(%rsi), %xmm2
|
|
pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 32(%rdi), %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, %rsi
|
|
add $48, %rdi
|
|
jmp L(continue_00_48)
|
|
|
|
.p2align 4
|
|
L(continue_48_00):
|
|
pcmpeqd (%rsi), %xmm0
|
|
mov (%rdi), %eax
|
|
pmovmskb %xmm0, %ecx
|
|
test %ecx, %ecx
|
|
jnz L(less4_double_words1)
|
|
|
|
cmp (%rsi), %eax
|
|
jne L(nequal)
|
|
|
|
mov 4(%rdi), %eax
|
|
cmp 4(%rsi), %eax
|
|
jne L(nequal)
|
|
|
|
mov 8(%rdi), %eax
|
|
cmp 8(%rsi), %eax
|
|
jne L(nequal)
|
|
|
|
mov 12(%rdi), %eax
|
|
cmp 12(%rsi), %eax
|
|
jne L(nequal)
|
|
|
|
movdqu 16(%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%rsi), %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(%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 32(%rsi), %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(%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 48(%rsi), %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, %rsi
|
|
add $64, %rdi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_32_00):
|
|
movdqu (%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%rsi), %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, %rsi
|
|
add $16, %rdi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_16_00):
|
|
movdqu (%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%rsi), %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(%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%rsi), %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, %rsi
|
|
add $32, %rdi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_0_00):
|
|
movdqu (%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd (%rsi), %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(%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 16(%rsi), %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(%rdi), %xmm1
|
|
pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
|
|
pcmpeqd 32(%rsi), %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, %rsi
|
|
add $48, %rdi
|
|
jmp L(continue_48_00)
|
|
|
|
.p2align 4
|
|
L(continue_32_32):
|
|
movdqu (%rdi), %xmm1
|
|
movdqu (%rsi), %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, %rsi
|
|
add $16, %rdi
|
|
jmp L(continue_48_48)
|
|
|
|
.p2align 4
|
|
L(continue_16_16):
|
|
movdqu (%rdi), %xmm1
|
|
movdqu (%rsi), %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(%rdi), %xmm3
|
|
movdqu 16(%rsi), %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, %rsi
|
|
add $32, %rdi
|
|
jmp L(continue_48_48)
|
|
|
|
.p2align 4
|
|
L(continue_0_0):
|
|
movdqu (%rdi), %xmm1
|
|
movdqu (%rsi), %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(%rdi), %xmm3
|
|
movdqu 16(%rsi), %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(%rdi), %xmm1
|
|
movdqu 32(%rsi), %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, %rsi
|
|
add $48, %rdi
|
|
jmp L(continue_48_48)
|
|
|
|
.p2align 4
|
|
L(continue_0_16):
|
|
movdqu (%rdi), %xmm1
|
|
movdqu (%rsi), %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(%rdi), %xmm1
|
|
movdqu 16(%rsi), %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, %rsi
|
|
add $32, %rdi
|
|
jmp L(continue_32_48)
|
|
|
|
.p2align 4
|
|
L(continue_0_32):
|
|
movdqu (%rdi), %xmm1
|
|
movdqu (%rsi), %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, %rsi
|
|
add $16, %rdi
|
|
jmp L(continue_16_48)
|
|
|
|
.p2align 4
|
|
L(continue_16_32):
|
|
movdqu (%rdi), %xmm1
|
|
movdqu (%rsi), %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, %rsi
|
|
add $16, %rdi
|
|
jmp L(continue_32_48)
|
|
|
|
.p2align 4
|
|
L(less4_double_words1):
|
|
cmp (%rsi), %eax
|
|
jne L(nequal)
|
|
test %eax, %eax
|
|
jz L(equal)
|
|
|
|
mov 4(%rsi), %ecx
|
|
cmp %ecx, 4(%rdi)
|
|
jne L(nequal)
|
|
test %ecx, %ecx
|
|
jz L(equal)
|
|
|
|
mov 8(%rsi), %ecx
|
|
cmp %ecx, 8(%rdi)
|
|
jne L(nequal)
|
|
test %ecx, %ecx
|
|
jz L(equal)
|
|
|
|
mov 12(%rsi), %ecx
|
|
cmp %ecx, 12(%rdi)
|
|
jne L(nequal)
|
|
xor %eax, %eax
|
|
ret
|
|
|
|
.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 (%rdi), %eax
|
|
cmp (%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(second_double_word):
|
|
mov 4(%rdi), %eax
|
|
cmp 4(%rsi), %eax
|
|
jne L(nequal)
|
|
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(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(fourth_double_word):
|
|
mov 12(%rdi), %eax
|
|
cmp 12(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.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(%rdi), %eax
|
|
cmp 16(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(second_double_word_16):
|
|
mov 20(%rdi), %eax
|
|
cmp 20(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(next_two_double_words_16):
|
|
and $15, %dh
|
|
jz L(fourth_double_word_16)
|
|
mov 24(%rdi), %eax
|
|
cmp 24(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(fourth_double_word_16):
|
|
mov 28(%rdi), %eax
|
|
cmp 28(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.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(%rdi), %eax
|
|
cmp 32(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(second_double_word_32):
|
|
mov 36(%rdi), %eax
|
|
cmp 36(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(next_two_double_words_32):
|
|
and $15, %dh
|
|
jz L(fourth_double_word_32)
|
|
mov 40(%rdi), %eax
|
|
cmp 40(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(fourth_double_word_32):
|
|
mov 44(%rdi), %eax
|
|
cmp 44(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.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(%rdi), %eax
|
|
cmp 48(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(second_double_word_48):
|
|
mov 52(%rdi), %eax
|
|
cmp 52(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(next_two_double_words_48):
|
|
and $15, %dh
|
|
jz L(fourth_double_word_48)
|
|
mov 56(%rdi), %eax
|
|
cmp 56(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(fourth_double_word_48):
|
|
mov 60(%rdi), %eax
|
|
cmp 60(%rsi), %eax
|
|
jne L(nequal)
|
|
ret
|
|
|
|
.p2align 4
|
|
L(nequal):
|
|
mov $1, %eax
|
|
jg L(nequal_bigger)
|
|
neg %eax
|
|
|
|
L(nequal_bigger):
|
|
ret
|
|
|
|
.p2align 4
|
|
L(equal):
|
|
xor %rax, %rax
|
|
ret
|
|
|
|
END (__wcscmp)
|
|
libc_hidden_def (__wcscmp)
|
|
weak_alias (__wcscmp, wcscmp)
|