1 /* wcschr with SSE2, without using bsf instructions
2 Copyright (C) 2011-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
22 # define CFI_PUSH(REG) \
23 cfi_adjust_cfa_offset (4); \
24 cfi_rel_offset (REG, 0)
26 # define CFI_POP(REG) \
27 cfi_adjust_cfa_offset (-4); \
30 # define PUSH(REG) pushl REG; CFI_PUSH (REG)
31 # define POP(REG) popl REG; CFI_POP (REG)
41 movd STR2(%esp), %xmm1
44 punpckldq %xmm1, %xmm1
46 punpckldq %xmm1, %xmm1
78 jz L(unaligned_no_match)
86 jz L(match_higth_case2)
97 L(unaligned_no_match):
106 /* Loop start on aligned string. */
156 jz L(match_higth_case2)
170 L(match_higth_case2):
174 jnz L(match_case2_12)
188 jz L(match_higth_case1)
196 L(match_higth_case1):