bc15410ece
2002-03-11 Ulrich Drepper <drepper@redhat.com> * manual/examples/mkfsock.c: Include <string.h> as well. Patch by Alain De Carolis <alaind@wseurope.com>. 2002-03-06 Isamu Hasegawa <isamu@yamato.ibm.com> * posix/regexec.c (re_match): Fix incorrect register sizes. (re_search): Likewise. 2002-03-05 Isamu Hasegawa <isamu@yamato.ibm.com> * posix/regcomp.c (regfree): Remove a disused condition. * posix/regex_internal.c (re_acquire_state): Likewise. (re_acquire_state_context): Likewise. (register_state): Remove a redundant malloc invocation. * posix/regex_internal.h: (re_state_table_entry): Simplify the structure. 2002-03-05 Isamu Hasegawa <isamu@yamato.ibm.com> * posix/regcomp.c (regcomp): Add __builtin_expect to error handling conditions. (regerror): Likewise. (regfree): Likewise. (re_compile_internal): Likewise. (init_dfa): Likewise. (init_word_char): Likewise. (create_initial_state): Likewise. (analyze): Likewise. (analyze_tree): Likewise. (duplicate_node): Likewise. (calc_eclosure): Likewise. (calc_eclosure_iter): Likewise. (parse): Likewise. (parse_reg_exp): Likewise. (parse_branch): Likewise. (parse_expression): Likewise. (parse_subexp): Likewise. (parse_dup_op): Likewise. (parse_bracket_exp): Likewise. (build_equiv_class): Likewise. (build_charclass): Likewise. (build_word_op): Likewise. (fetch_number): Likewise. (create_tree): Likewise. (duplicate_tree): Likewise. * posix/regex.c (BE): New macro. * posix/regexec.c (re_match): Add __builtin_expect to error handling conditions. (re_match_2): Likewise. (re_search): Likewise. (re_search_internal): Likewise. (check_matching): Likewise. (proceed_next_node): Likewise. (set_regs): Likewise. (sift_states_backward): Likewise. (add_epsilon_backreference): Likewise. (transit_state): Likewise. (transit_state_sb): Likewise. (transit_state_mb): Likewise. (transit_state_bkref): Likewise. (transit_state_bkref_loop): Likewise. (build_trtable): Likewise. (group_nodes_into_DFAstates): Likewise. (match_ctx_init): Likewise. (match_ctx_add_entry): Likewise. * posix/regex_internal.c (re_string_construct): Add __builtin_expect to error handling conditions. (re_string_construct_toupper): Likewise. (build_wcs_buffer): Likewise. (build_wcs_upper_buffer): Likewise. (build_upper_buffer): Likewise. (re_string_translate_buffer): Likewise. (re_node_set_alloc): Likewise. (re_node_set_init_1): Likewise. (re_node_set_init_2): Likewise. (re_node_set_init_copy): Likewise. (re_node_set_intersect): Likewise. (re_node_set_init_union): Likewise. (re_node_set_merge): Likewise. (re_node_set_insert): Likewise. (re_dfa_add_node): Likewise. (re_acquire_state): Likewise. (re_acquire_state_context): Likewise. (create_new_state_common): Likewise. (register_state): Likewise. (create_ci_new_state): Likewise. (create_cd_new_state): Likewise. (re_string_context_at): Remove redundant condition. 2002-01-16 Roger Sayle <roger@eyesopen.com> * sysdeps/i386/i686/strcmp.S: Avoid unconditional jump to a ret. * sysdeps/i386/i586/strlen.S: Fix typo in comment.
72 lines
1.9 KiB
ArmAsm
72 lines
1.9 KiB
ArmAsm
/* Highly optimized version for ix86, x>=6.
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Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#include "asm-syntax.h"
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#include "bp-sym.h"
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#include "bp-asm.h"
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#define PARMS LINKAGE /* no space for saved regs */
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#define STR1 PARMS
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#define STR2 STR1+PTR_SIZE
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.text
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ENTRY (BP_SYM (strcmp))
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ENTER
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movl STR1(%esp), %ecx
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movl STR2(%esp), %edx
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CHECK_BOUNDS_LOW (%ecx, STR1(%esp))
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CHECK_BOUNDS_LOW (%edx, STR2(%esp))
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L(oop): movb (%ecx), %al
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cmpb (%edx), %al
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jne L(neq)
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incl %ecx
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incl %edx
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testb %al, %al
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jnz L(oop)
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xorl %eax, %eax
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/* when strings are equal, pointers rest one beyond
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the end of the NUL terminators. */
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CHECK_BOUNDS_HIGH (%ecx, STR1(%esp), jbe)
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CHECK_BOUNDS_HIGH (%edx, STR2(%esp), jbe)
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LEAVE
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ret
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#ifndef __BOUNDED_POINTERS__
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L(neq): movl $1, %eax
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movl $-1, %ecx
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cmovbl %ecx, %eax
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#else
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L(neq): movl $1, %eax
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ja L(chk)
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negl %eax
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/* When strings differ, pointers rest on
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the unequal characters. */
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L(chk): CHECK_BOUNDS_HIGH (%ecx, STR1(%esp), jb)
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CHECK_BOUNDS_HIGH (%edx, STR2(%esp), jb)
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#endif
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LEAVE
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ret
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END (BP_SYM (strcmp))
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