]> git.ipfire.org Git - thirdparty/glibc.git/blame - sysdeps/i386/i686/multiarch/strcmp-sse4.S
projects / thirdparty / glibc.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Update copyright dates with scripts/update-copyrights
[thirdparty/glibc.git] / sysdeps / i386 / i686 / multiarch / strcmp-sse4.S
CommitLineData
904057bc 1/* strcmp with SSE4.2
6d7e8eda 2 Copyright (C) 2010-2023 Free Software Foundation, Inc.
904057bc
L		 3 This file is part of the GNU C Library.
4
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.
9
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.
14
15 You should have received a copy of the GNU Lesser General Public
59ba27a6 16 License along with the GNU C Library; if not, see
5a82c748 17 <https://www.gnu.org/licenses/>. */
904057bc 18
4f41c682 19#if IS_IN (libc)
904057bc
L		 20
21#include <sysdep.h>
22#include "asm-syntax.h"
23
24#define CFI_PUSH(REG) \
25 cfi_adjust_cfa_offset (4); \
26 cfi_rel_offset (REG, 0)
27
28#define CFI_POP(REG) \
29 cfi_adjust_cfa_offset (-4); \
30 cfi_restore (REG)
31
32#define PUSH(REG) pushl REG; CFI_PUSH (REG)
33#define POP(REG) popl REG; CFI_POP (REG)
34
6abf3465 35#ifdef USE_AS_STRNCMP
904057bc 36# ifndef STRCMP
6abf3465 37# define STRCMP __strncmp_sse4_2
904057bc 38# endif
6abf3465 39# define STR1 8
904057bc 40# define STR2 STR1+4
6abf3465
UD		 41# define CNT STR2+4
42# define RETURN POP (REM); ret; .p2align 4; CFI_PUSH (REM)
43# define REM %ebp
44#elif defined USE_AS_STRCASECMP_L
45# include "locale-defines.h"
904057bc 46# ifndef STRCMP
6abf3465 47# define STRCMP __strcasecmp_l_sse4_2
904057bc 48# endif
5583a086
AS		 49# ifdef PIC
50# define STR1 12
51# else
52# define STR1 8
53# endif
6abf3465 54# define STR2 STR1+4
c0c3f78a 55# define LOCALE 12 /* Loaded before the adjustment. */
6abf3465
UD		 56# ifdef PIC
57# define RETURN POP (%edi); POP (%ebx); ret; \
58 .p2align 4; CFI_PUSH (%ebx); CFI_PUSH (%edi)
59# else
60# define RETURN POP (%edi); ret; .p2align 4; CFI_PUSH (%edi)
61# endif
62# define NONASCII __strcasecmp_nonascii
63#elif defined USE_AS_STRNCASECMP_L
64# include "locale-defines.h"
65# ifndef STRCMP
66# define STRCMP __strncasecmp_l_sse4_2
67# endif
5583a086
AS		 68# ifdef PIC
69# define STR1 16
70# else
71# define STR1 12
72# endif
904057bc
L		 73# define STR2 STR1+4
74# define CNT STR2+4
c0c3f78a 75# define LOCALE 16 /* Loaded before the adjustment. */
6abf3465
UD		 76# ifdef PIC
77# define RETURN POP (%edi); POP (REM); POP (%ebx); ret; \
78 .p2align 4; \
79 CFI_PUSH (%ebx); CFI_PUSH (REM); CFI_PUSH (%edi)
80# else
81# define RETURN POP (%edi); POP (REM); ret; \
82 .p2align 4; CFI_PUSH (REM); CFI_PUSH (%edi)
83# endif
84# define REM %ebp
85# define NONASCII __strncasecmp_nonascii
86#else
87# ifndef STRCMP
88# define STRCMP __strcmp_sse4_2
89# endif
90# define STR1 4
91# define STR2 STR1+4
92# define RETURN ret; .p2align 4
904057bc
L		 93#endif
94
95 .section .text.sse4.2,"ax",@progbits
6abf3465
UD		 96
97#ifdef USE_AS_STRCASECMP_L
98ENTRY (__strcasecmp_sse4_2)
99# ifdef PIC
100 PUSH (%ebx)
9a1d9254 101 LOAD_PIC_REG(bx)
6abf3465 102 movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
5583a086 103 movl %gs:(%eax), %eax
6abf3465 104# else
5583a086 105 movl %gs:__libc_tsd_LOCALE@NTPOFF, %eax
6abf3465 106# endif
6abf3465
UD		 107# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
108 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
109# else
110 movl (%eax), %eax
111# endif
112 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
5d228a43
AS		 113# ifdef PIC
114 je L(ascii)
115 POP (%ebx)
116 jmp __strcasecmp_nonascii
117# else
6abf3465
UD		 118 jne __strcasecmp_nonascii
119 jmp L(ascii)
5d228a43 120# endif
6abf3465
UD		 121END (__strcasecmp_sse4_2)
122#endif
123
124#ifdef USE_AS_STRNCASECMP_L
125ENTRY (__strncasecmp_sse4_2)
126# ifdef PIC
127 PUSH (%ebx)
9a1d9254 128 LOAD_PIC_REG(bx)
6abf3465 129 movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
5583a086 130 movl %gs:(%eax), %eax
6abf3465 131# else
5583a086 132 movl %gs:__libc_tsd_LOCALE@NTPOFF, %eax
6abf3465 133# endif
6abf3465
UD		 134# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
135 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
136# else
137 movl (%eax), %eax
138# endif
139 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
5d228a43
AS		 140# ifdef PIC
141 je L(ascii)
142 POP (%ebx)
143 jmp __strncasecmp_nonascii
144# else
6abf3465
UD		 145 jne __strncasecmp_nonascii
146 jmp L(ascii)
5d228a43 147# endif
6abf3465
UD		 148END (__strncasecmp_sse4_2)
149#endif
150
151 ENTRY (STRCMP)
152#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
153 movl LOCALE(%esp), %eax
154# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
155 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
156# else
157 movl (%eax), %eax
158# endif
159 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
160 jne NONASCII
161
162# ifdef PIC
163 PUSH (%ebx)
9a1d9254 164 LOAD_PIC_REG(bx)
6abf3465
UD		 165# endif
166L(ascii):
167 .section .rodata.cst16,"aM",@progbits,16
168 .align 16
169.Lbelowupper:
170 .quad 0x4040404040404040
171 .quad 0x4040404040404040
172.Ltopupper:
173 .quad 0x5b5b5b5b5b5b5b5b
174 .quad 0x5b5b5b5b5b5b5b5b
175.Ltouppermask:
176 .quad 0x2020202020202020
177 .quad 0x2020202020202020
178 .previous
179
180# ifdef PIC
181# define UCLOW_reg .Lbelowupper@GOTOFF(%ebx)
182# define UCHIGH_reg .Ltopupper@GOTOFF(%ebx)
183# define LCQWORD_reg .Ltouppermask@GOTOFF(%ebx)
184# else
185# define UCLOW_reg .Lbelowupper
186# define UCHIGH_reg .Ltopupper
187# define LCQWORD_reg .Ltouppermask
188# endif
189#endif
190
191#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
192 PUSH (REM)
193#endif
194#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
195 PUSH (%edi)
904057bc
L		 196#endif
197 mov STR1(%esp), %edx
198 mov STR2(%esp), %eax
6abf3465
UD		 199#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
200 movl CNT(%esp), REM
201 test REM, REM
904057bc
L		 202 je L(eq)
203#endif
204 mov %dx, %cx
205 and $0xfff, %cx
206 cmp $0xff0, %cx
207 ja L(first4bytes)
208 movdqu (%edx), %xmm2
209 mov %eax, %ecx
210 and $0xfff, %ecx
211 cmp $0xff0, %ecx
212 ja L(first4bytes)
6abf3465
UD		 213#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
214# define TOLOWER(reg1, reg2) \
215 movdqa reg1, %xmm3; \
216 movdqa UCHIGH_reg, %xmm4; \
217 movdqa reg2, %xmm5; \
218 movdqa UCHIGH_reg, %xmm6; \
219 pcmpgtb UCLOW_reg, %xmm3; \
220 pcmpgtb reg1, %xmm4; \
221 pcmpgtb UCLOW_reg, %xmm5; \
222 pcmpgtb reg2, %xmm6; \
223 pand %xmm4, %xmm3; \
224 pand %xmm6, %xmm5; \
225 pand LCQWORD_reg, %xmm3; \
226 pand LCQWORD_reg, %xmm5; \
227 por %xmm3, reg1; \
228 por %xmm5, reg2
229
230 movdqu (%eax), %xmm1
231 TOLOWER (%xmm2, %xmm1)
232 movd %xmm2, %ecx
233 movd %xmm1, %edi
234 movdqa %xmm2, %xmm3
235 movdqa %xmm1, %xmm4
236 cmpl %edi, %ecx
237#else
238# define TOLOWER(reg1, reg)
239
904057bc
L		 240 movd %xmm2, %ecx
241 cmp (%eax), %ecx
6abf3465 242#endif
904057bc 243 jne L(less4bytes)
6abf3465 244#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
904057bc 245 movdqu (%eax), %xmm1
6abf3465 246#endif
904057bc
L		 247 pxor %xmm2, %xmm1
248 pxor %xmm0, %xmm0
249 ptest %xmm1, %xmm0
250 jnc L(less16bytes)
251 pcmpeqb %xmm0, %xmm2
252 ptest %xmm2, %xmm0
253 jnc L(less16bytes)
254
6abf3465
UD		 255#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
256 sub $16, REM
904057bc
L		 257 jbe L(eq)
258#endif
259 add $16, %edx
260 add $16, %eax
261L(first4bytes):
262 movzbl (%eax), %ecx
6abf3465
UD		 263#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
264 movzbl (%edx), %edi
265# ifdef PIC
266 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
267 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
268# else
269 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
270 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
271# endif
272 cmpl %ecx, %edi
273#else
904057bc 274 cmpb %cl, (%edx)
6abf3465 275#endif
904057bc
L		 276 jne L(neq)
277 cmpl $0, %ecx
278 je L(eq)
279
6abf3465
UD		 280#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
281 cmp $1, REM
904057bc
L		 282 je L(eq)
283#endif
284
285 movzbl 1(%eax), %ecx
6abf3465
UD		 286#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
287 movzbl 1(%edx), %edi
288# ifdef PIC
289 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
290 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
291# else
292 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
293 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
294# endif
295 cmpl %ecx, %edi
296#else
904057bc 297 cmpb %cl, 1(%edx)
6abf3465 298#endif
904057bc
L		 299 jne L(neq)
300 cmpl $0, %ecx
301 je L(eq)
302
6abf3465
UD		 303#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
304 cmp $2, REM
904057bc
L		 305 je L(eq)
306#endif
307 movzbl 2(%eax), %ecx
6abf3465
UD		 308#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
309 movzbl 2(%edx), %edi
310# ifdef PIC
311 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
312 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
313# else
314 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
315 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
316# endif
317 cmpl %ecx, %edi
318#else
904057bc 319 cmpb %cl, 2(%edx)
6abf3465 320#endif
904057bc
L		 321 jne L(neq)
322 cmpl $0, %ecx
323 je L(eq)
324
6abf3465
UD		 325#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
326 cmp $3, REM
904057bc
L		 327 je L(eq)
328#endif
329 movzbl 3(%eax), %ecx
6abf3465
UD		 330#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
331 movzbl 3(%edx), %edi
332# ifdef PIC
333 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
334 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
335# else
336 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
337 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
338# endif
339 cmpl %ecx, %edi
340#else
904057bc 341 cmpb %cl, 3(%edx)
6abf3465 342#endif
904057bc
L		 343 jne L(neq)
344 cmpl $0, %ecx
345 je L(eq)
346
6abf3465
UD		 347#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
348 cmp $4, REM
904057bc
L		 349 je L(eq)
350#endif
351 movzbl 4(%eax), %ecx
6abf3465
UD		 352#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
353 movzbl 4(%edx), %edi
354# ifdef PIC
355 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
356 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
357# else
358 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
359 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
360# endif
361 cmpl %ecx, %edi
362#else
904057bc 363 cmpb %cl, 4(%edx)
6abf3465 364#endif
904057bc
L		 365 jne L(neq)
366 cmpl $0, %ecx
367 je L(eq)
368
6abf3465
UD		 369#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
370 cmp $5, REM
904057bc
L		 371 je L(eq)
372#endif
373 movzbl 5(%eax), %ecx
6abf3465
UD		 374#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
375 movzbl 5(%edx), %edi
376# ifdef PIC
377 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
378 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
379# else
380 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
381 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
382# endif
383 cmpl %ecx, %edi
384#else
904057bc 385 cmpb %cl, 5(%edx)
6abf3465 386#endif
904057bc
L		 387 jne L(neq)
388 cmpl $0, %ecx
389 je L(eq)
390
6abf3465
UD		 391#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
392 cmp $6, REM
904057bc
L		 393 je L(eq)
394#endif
395 movzbl 6(%eax), %ecx
6abf3465
UD		 396#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
397 movzbl 6(%edx), %edi
398# ifdef PIC
399 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
400 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
401# else
402 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
403 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
404# endif
405 cmpl %ecx, %edi
406#else
904057bc 407 cmpb %cl, 6(%edx)
6abf3465 408#endif
904057bc
L		 409 jne L(neq)
410 cmpl $0, %ecx
411 je L(eq)
412
6abf3465
UD		 413#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
414 cmp $7, REM
904057bc
L		 415 je L(eq)
416#endif
417 movzbl 7(%eax), %ecx
6abf3465
UD		 418#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
419 movzbl 7(%edx), %edi
420# ifdef PIC
421 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
422 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
423# else
424 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
425 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
426# endif
427 cmpl %ecx, %edi
428#else
904057bc 429 cmpb %cl, 7(%edx)
6abf3465 430#endif
904057bc
L		 431 jne L(neq)
432 cmpl $0, %ecx
433 je L(eq)
434
6abf3465
UD		 435#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
436 sub $8, REM
904057bc
L		 437 je L(eq)
438#endif
439 add $8, %eax
440 add $8, %edx
441
6abf3465 442#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
904057bc 443 PUSH (%edi)
6abf3465 444#endif
904057bc 445 PUSH (%esi)
6abf3465 446#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
6bb74d9f 447 cfi_remember_state
dc21aae6 448#endif
904057bc
L		 449 mov %edx, %edi
450 mov %eax, %esi
451 xorl %eax, %eax
452L(check_offset):
6abf3465 453 movl %edi, %edx
904057bc 454 movl %esi, %ecx
6abf3465 455 andl $0xfff, %edx
904057bc 456 andl $0xfff, %ecx
6abf3465
UD		 457 cmpl %edx, %ecx
458 cmovl %edx, %ecx
904057bc
L		 459 lea -0xff0(%ecx), %edx
460 sub %edx, %edi
461 sub %edx, %esi
462 testl %edx, %edx
463 jg L(crosspage)
464L(loop):
465 movdqu (%esi,%edx), %xmm2
466 movdqu (%edi,%edx), %xmm1
6abf3465 467 TOLOWER (%xmm2, %xmm1)
904057bc
L		 468 pcmpistri $0x1a, %xmm2, %xmm1
469 jbe L(end)
470
6abf3465
UD		 471#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
472 sub $16, REM
904057bc
L		 473 jbe L(more16byteseq)
474#endif
475
476 add $16, %edx
477 jle L(loop)
478L(crosspage):
479 movzbl (%edi,%edx), %eax
6abf3465
UD		 480 movzbl (%esi,%edx), %ecx
481#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
482# ifdef PIC
483 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
484 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
485# else
486 movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
487 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
488# endif
489#endif
490 subl %ecx, %eax
904057bc 491 jne L(ret)
6abf3465 492 testl %ecx, %ecx
904057bc 493 je L(ret)
6abf3465
UD		 494#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
495 sub $1, REM
904057bc
L		 496 jbe L(more16byteseq)
497#endif
498 inc %edx
499 cmp $15, %edx
500 jle L(crosspage)
6cc2b8a6
L		 501 add %edx, %edi
502 add %edx, %esi
904057bc
L		 503 jmp L(check_offset)
504
28be6098 505 .p2align 4
904057bc
L		 506L(end):
507 jnc L(ret)
6abf3465
UD		 508#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
509 sub %ecx, REM
904057bc
L		 510 jbe L(more16byteseq)
511#endif
6abf3465
UD		 512 lea (%ecx,%edx), %ecx
513 movzbl (%edi,%ecx), %eax
514 movzbl (%esi,%ecx), %ecx
515#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
516# ifdef PIC
517 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
518 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
519# else
520 movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
521 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
522# endif
523#endif
904057bc
L		 524 subl %ecx, %eax
525L(ret):
526 POP (%esi)
527 POP (%edi)
6abf3465
UD		 528#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
529 POP (REM)
530#endif
531#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
532# ifdef PIC
904057bc 533 POP (%ebx)
6abf3465 534# endif
904057bc
L		 535#endif
536 ret
537
28be6098 538 .p2align 4
6abf3465 539#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
dc21aae6 540 cfi_restore_state
904057bc
L		 541L(more16byteseq):
542 POP (%esi)
6abf3465 543# ifdef USE_AS_STRNCMP
904057bc 544 POP (%edi)
6abf3465 545# endif
904057bc
L		 546#endif
547L(eq):
548 xorl %eax, %eax
28be6098 549 RETURN
6bb74d9f 550
904057bc
L		 551L(neq):
552 mov $1, %eax
553 ja L(neq_bigger)
554 neg %eax
555L(neq_bigger):
28be6098
L		 556 RETURN
557
904057bc
L		 558L(less16bytes):
559 add $0xfefefeff, %ecx
560 jnc L(less4bytes)
6abf3465
UD		 561#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
562 movd %xmm3, %edi
563 xor %edi, %ecx
564#else
904057bc 565 xor (%edx), %ecx
6abf3465 566#endif
904057bc
L		 567 or $0xfefefeff, %ecx
568 add $1, %ecx
569 jnz L(less4bytes)
570
6abf3465
UD		 571#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
572 cmp $4, REM
904057bc
L		 573 jbe L(eq)
574#endif
6abf3465
UD		 575#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
576 psrldq $4, %xmm3
577 psrldq $4, %xmm4
578 movd %xmm3, %ecx
579 movd %xmm4, %edi
580 cmp %edi, %ecx
581 mov %ecx, %edi
582#else
904057bc
L		 583 mov 4(%edx), %ecx
584 cmp 4(%eax), %ecx
6abf3465 585#endif
904057bc
L		 586 jne L(more4bytes)
587 add $0xfefefeff, %ecx
588 jnc L(more4bytes)
6abf3465
UD		 589#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
590 xor %edi, %ecx
591#else
904057bc 592 xor 4(%edx), %ecx
6abf3465 593#endif
904057bc
L		 594 or $0xfefefeff, %ecx
595 add $1, %ecx
596 jnz L(more4bytes)
597
6abf3465
UD		 598#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
599 sub $8, REM
904057bc
L		 600 jbe L(eq)
601#endif
602
603 add $8, %edx
604 add $8, %eax
605L(less4bytes):
606
607 movzbl (%eax), %ecx
6abf3465
UD		 608#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
609 movzbl (%edx), %edi
610# ifdef PIC
611 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
612 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
613# else
614 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
615 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
616# endif
617 cmpl %ecx, %edi
618#else
904057bc 619 cmpb %cl, (%edx)
6abf3465 620#endif
904057bc
L		 621 jne L(neq)
622 cmpl $0, %ecx
623 je L(eq)
624
6abf3465
UD		 625#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
626 cmp $1, REM
904057bc
L		 627 je L(eq)
628#endif
629 movzbl 1(%eax), %ecx
6abf3465
UD		 630#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
631 movzbl 1(%edx), %edi
632# ifdef PIC
633 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
634 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
635# else
636 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
637 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
638# endif
639 cmpl %ecx, %edi
640#else
904057bc 641 cmpb %cl, 1(%edx)
6abf3465 642#endif
904057bc
L		 643 jne L(neq)
644 cmpl $0, %ecx
645 je L(eq)
646
6abf3465
UD		 647#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
648 cmp $2, REM
904057bc
L		 649 je L(eq)
650#endif
651
652 movzbl 2(%eax), %ecx
6abf3465
UD		 653#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
654 movzbl 2(%edx), %edi
655# ifdef PIC
656 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
657 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
658# else
659 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
660 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
661# endif
662 cmpl %ecx, %edi
663#else
904057bc 664 cmpb %cl, 2(%edx)
6abf3465 665#endif
904057bc
L		 666 jne L(neq)
667 cmpl $0, %ecx
668 je L(eq)
669
6abf3465
UD		 670#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
671 cmp $3, REM
904057bc
L		 672 je L(eq)
673#endif
674 movzbl 3(%eax), %ecx
6abf3465
UD		 675#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
676 movzbl 3(%edx), %edi
677# ifdef PIC
678 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
679 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
680# else
681 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
682 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
683# endif
684 cmpl %ecx, %edi
685#else
904057bc 686 cmpb %cl, 3(%edx)
6abf3465 687#endif
904057bc
L		 688 jne L(neq)
689 cmpl $0, %ecx
690 je L(eq)
691
692L(more4bytes):
6abf3465
UD		 693#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
694 cmp $4, REM
904057bc
L		 695 je L(eq)
696#endif
697 movzbl 4(%eax), %ecx
6abf3465
UD		 698#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
699 movzbl 4(%edx), %edi
700# ifdef PIC
701 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
702 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
703# else
704 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
705 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
706# endif
707 cmpl %ecx, %edi
708#else
904057bc 709 cmpb %cl, 4(%edx)
6abf3465 710#endif
904057bc
L		 711 jne L(neq)
712 cmpl $0, %ecx
713 je L(eq)
714
715
6abf3465
UD		 716#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
717 cmp $5, REM
904057bc
L		 718 je L(eq)
719#endif
720 movzbl 5(%eax), %ecx
6abf3465
UD		 721#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
722 movzbl 5(%edx), %edi
723# ifdef PIC
724 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
725 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
726# else
727 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
728 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
729# endif
730 cmpl %ecx, %edi
731#else
904057bc 732 cmpb %cl, 5(%edx)
6abf3465 733#endif
904057bc
L		 734 jne L(neq)
735 cmpl $0, %ecx
736 je L(eq)
737
6abf3465
UD		 738#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
739 cmp $6, REM
904057bc
L		 740 je L(eq)
741#endif
742 movzbl 6(%eax), %ecx
6abf3465
UD		 743#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
744 movzbl 6(%edx), %edi
745# ifdef PIC
746 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
747 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
748# else
749 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
750 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
751# endif
752 cmpl %ecx, %edi
753#else
904057bc 754 cmpb %cl, 6(%edx)
6abf3465 755#endif
904057bc
L		 756 jne L(neq)
757 cmpl $0, %ecx
758 je L(eq)
759
6abf3465
UD		 760#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
761 cmp $7, REM
904057bc
L		 762 je L(eq)
763#endif
764 movzbl 7(%eax), %ecx
6abf3465
UD		 765#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
766 movzbl 7(%edx), %edi
767# ifdef PIC
768 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
769 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
770# else
771 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
772 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
773# endif
774 cmpl %ecx, %edi
775#else
904057bc 776 cmpb %cl, 7(%edx)
6abf3465 777#endif
904057bc 778 jne L(neq)
6bb74d9f 779 jmp L(eq)
904057bc
L		 780
781END (STRCMP)
782
783#endif
A mirror of the official glibc repository