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[thirdparty/glibc.git] / sysdeps / i386 / i686 / multiarch / strcmp-sse4.S
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904057bc 1/* strcmp with SSE4.2
f7a9f785 2 Copyright (C) 2010-2016 Free Software Foundation, Inc.
904057bc
L		 3 Contributed by Intel Corporation.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
59ba27a6
PE		 17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
904057bc 19
4f41c682 20#if IS_IN (libc)
904057bc
L		 21
22#include <sysdep.h>
23#include "asm-syntax.h"
24
25#define CFI_PUSH(REG) \
26 cfi_adjust_cfa_offset (4); \
27 cfi_rel_offset (REG, 0)
28
29#define CFI_POP(REG) \
30 cfi_adjust_cfa_offset (-4); \
31 cfi_restore (REG)
32
33#define PUSH(REG) pushl REG; CFI_PUSH (REG)
34#define POP(REG) popl REG; CFI_POP (REG)
35
6abf3465 36#ifdef USE_AS_STRNCMP
904057bc 37# ifndef STRCMP
6abf3465 38# define STRCMP __strncmp_sse4_2
904057bc 39# endif
6abf3465 40# define STR1 8
904057bc 41# define STR2 STR1+4
6abf3465
UD		 42# define CNT STR2+4
43# define RETURN POP (REM); ret; .p2align 4; CFI_PUSH (REM)
44# define REM %ebp
45#elif defined USE_AS_STRCASECMP_L
46# include "locale-defines.h"
904057bc 47# ifndef STRCMP
6abf3465 48# define STRCMP __strcasecmp_l_sse4_2
904057bc 49# endif
5583a086
AS		 50# ifdef PIC
51# define STR1 12
52# else
53# define STR1 8
54# endif
6abf3465 55# define STR2 STR1+4
c0c3f78a 56# define LOCALE 12 /* Loaded before the adjustment. */
6abf3465
UD		 57# ifdef PIC
58# define RETURN POP (%edi); POP (%ebx); ret; \
59 .p2align 4; CFI_PUSH (%ebx); CFI_PUSH (%edi)
60# else
61# define RETURN POP (%edi); ret; .p2align 4; CFI_PUSH (%edi)
62# endif
63# define NONASCII __strcasecmp_nonascii
64#elif defined USE_AS_STRNCASECMP_L
65# include "locale-defines.h"
66# ifndef STRCMP
67# define STRCMP __strncasecmp_l_sse4_2
68# endif
5583a086
AS		 69# ifdef PIC
70# define STR1 16
71# else
72# define STR1 12
73# endif
904057bc
L		 74# define STR2 STR1+4
75# define CNT STR2+4
c0c3f78a 76# define LOCALE 16 /* Loaded before the adjustment. */
6abf3465
UD		 77# ifdef PIC
78# define RETURN POP (%edi); POP (REM); POP (%ebx); ret; \
79 .p2align 4; \
80 CFI_PUSH (%ebx); CFI_PUSH (REM); CFI_PUSH (%edi)
81# else
82# define RETURN POP (%edi); POP (REM); ret; \
83 .p2align 4; CFI_PUSH (REM); CFI_PUSH (%edi)
84# endif
85# define REM %ebp
86# define NONASCII __strncasecmp_nonascii
87#else
88# ifndef STRCMP
89# define STRCMP __strcmp_sse4_2
90# endif
91# define STR1 4
92# define STR2 STR1+4
93# define RETURN ret; .p2align 4
904057bc
L		 94#endif
95
96 .section .text.sse4.2,"ax",@progbits
6abf3465
UD		 97
98#ifdef USE_AS_STRCASECMP_L
99ENTRY (__strcasecmp_sse4_2)
100# ifdef PIC
101 PUSH (%ebx)
9a1d9254 102 LOAD_PIC_REG(bx)
6abf3465 103 movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
5583a086
AS		 104# ifdef NO_TLS_DIRECT_SEG_REFS
105 addl %gs:0, %eax
106 movl (%eax), %eax
107# else
108 movl %gs:(%eax), %eax
109# endif
6abf3465 110# else
5583a086
AS		 111# ifdef NO_TLS_DIRECT_SEG_REFS
112 movl %gs:0, %eax
113 movl __libc_tsd_LOCALE@NTPOFF(%eax), %eax
114# else
115 movl %gs:__libc_tsd_LOCALE@NTPOFF, %eax
116# endif
6abf3465 117# endif
6abf3465
UD		 118# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
119 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
120# else
121 movl (%eax), %eax
122# endif
123 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
5d228a43
AS		 124# ifdef PIC
125 je L(ascii)
126 POP (%ebx)
127 jmp __strcasecmp_nonascii
128# else
6abf3465
UD		 129 jne __strcasecmp_nonascii
130 jmp L(ascii)
5d228a43 131# endif
6abf3465
UD		 132END (__strcasecmp_sse4_2)
133#endif
134
135#ifdef USE_AS_STRNCASECMP_L
136ENTRY (__strncasecmp_sse4_2)
137# ifdef PIC
138 PUSH (%ebx)
9a1d9254 139 LOAD_PIC_REG(bx)
6abf3465 140 movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
5583a086
AS		 141# ifdef NO_TLS_DIRECT_SEG_REFS
142 addl %gs:0, %eax
143 movl (%eax), %eax
144# else
145 movl %gs:(%eax), %eax
146# endif
6abf3465 147# else
5583a086
AS		 148# ifdef NO_TLS_DIRECT_SEG_REFS
149 movl %gs:0, %eax
150 movl __libc_tsd_LOCALE@NTPOFF(%eax), %eax
151# else
152 movl %gs:__libc_tsd_LOCALE@NTPOFF, %eax
153# endif
6abf3465 154# endif
6abf3465
UD		 155# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
156 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
157# else
158 movl (%eax), %eax
159# endif
160 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
5d228a43
AS		 161# ifdef PIC
162 je L(ascii)
163 POP (%ebx)
164 jmp __strncasecmp_nonascii
165# else
6abf3465
UD		 166 jne __strncasecmp_nonascii
167 jmp L(ascii)
5d228a43 168# endif
6abf3465
UD		 169END (__strncasecmp_sse4_2)
170#endif
171
172 ENTRY (STRCMP)
173#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
174 movl LOCALE(%esp), %eax
175# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
176 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
177# else
178 movl (%eax), %eax
179# endif
180 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
181 jne NONASCII
182
183# ifdef PIC
184 PUSH (%ebx)
9a1d9254 185 LOAD_PIC_REG(bx)
6abf3465
UD		 186# endif
187L(ascii):
188 .section .rodata.cst16,"aM",@progbits,16
189 .align 16
190.Lbelowupper:
191 .quad 0x4040404040404040
192 .quad 0x4040404040404040
193.Ltopupper:
194 .quad 0x5b5b5b5b5b5b5b5b
195 .quad 0x5b5b5b5b5b5b5b5b
196.Ltouppermask:
197 .quad 0x2020202020202020
198 .quad 0x2020202020202020
199 .previous
200
201# ifdef PIC
202# define UCLOW_reg .Lbelowupper@GOTOFF(%ebx)
203# define UCHIGH_reg .Ltopupper@GOTOFF(%ebx)
204# define LCQWORD_reg .Ltouppermask@GOTOFF(%ebx)
205# else
206# define UCLOW_reg .Lbelowupper
207# define UCHIGH_reg .Ltopupper
208# define LCQWORD_reg .Ltouppermask
209# endif
210#endif
211
212#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
213 PUSH (REM)
214#endif
215#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
216 PUSH (%edi)
904057bc
L		 217#endif
218 mov STR1(%esp), %edx
219 mov STR2(%esp), %eax
6abf3465
UD		 220#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
221 movl CNT(%esp), REM
222 test REM, REM
904057bc
L		 223 je L(eq)
224#endif
225 mov %dx, %cx
226 and $0xfff, %cx
227 cmp $0xff0, %cx
228 ja L(first4bytes)
229 movdqu (%edx), %xmm2
230 mov %eax, %ecx
231 and $0xfff, %ecx
232 cmp $0xff0, %ecx
233 ja L(first4bytes)
6abf3465
UD		 234#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
235# define TOLOWER(reg1, reg2) \
236 movdqa reg1, %xmm3; \
237 movdqa UCHIGH_reg, %xmm4; \
238 movdqa reg2, %xmm5; \
239 movdqa UCHIGH_reg, %xmm6; \
240 pcmpgtb UCLOW_reg, %xmm3; \
241 pcmpgtb reg1, %xmm4; \
242 pcmpgtb UCLOW_reg, %xmm5; \
243 pcmpgtb reg2, %xmm6; \
244 pand %xmm4, %xmm3; \
245 pand %xmm6, %xmm5; \
246 pand LCQWORD_reg, %xmm3; \
247 pand LCQWORD_reg, %xmm5; \
248 por %xmm3, reg1; \
249 por %xmm5, reg2
250
251 movdqu (%eax), %xmm1
252 TOLOWER (%xmm2, %xmm1)
253 movd %xmm2, %ecx
254 movd %xmm1, %edi
255 movdqa %xmm2, %xmm3
256 movdqa %xmm1, %xmm4
257 cmpl %edi, %ecx
258#else
259# define TOLOWER(reg1, reg)
260
904057bc
L		 261 movd %xmm2, %ecx
262 cmp (%eax), %ecx
6abf3465 263#endif
904057bc 264 jne L(less4bytes)
6abf3465 265#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
904057bc 266 movdqu (%eax), %xmm1
6abf3465 267#endif
904057bc
L		 268 pxor %xmm2, %xmm1
269 pxor %xmm0, %xmm0
270 ptest %xmm1, %xmm0
271 jnc L(less16bytes)
272 pcmpeqb %xmm0, %xmm2
273 ptest %xmm2, %xmm0
274 jnc L(less16bytes)
275
6abf3465
UD		 276#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
277 sub $16, REM
904057bc
L		 278 jbe L(eq)
279#endif
280 add $16, %edx
281 add $16, %eax
282L(first4bytes):
283 movzbl (%eax), %ecx
6abf3465
UD		 284#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
285 movzbl (%edx), %edi
286# ifdef PIC
287 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
288 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
289# else
290 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
291 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
292# endif
293 cmpl %ecx, %edi
294#else
904057bc 295 cmpb %cl, (%edx)
6abf3465 296#endif
904057bc
L		 297 jne L(neq)
298 cmpl $0, %ecx
299 je L(eq)
300
6abf3465
UD		 301#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
302 cmp $1, REM
904057bc
L		 303 je L(eq)
304#endif
305
306 movzbl 1(%eax), %ecx
6abf3465
UD		 307#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
308 movzbl 1(%edx), %edi
309# ifdef PIC
310 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
311 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
312# else
313 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
314 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
315# endif
316 cmpl %ecx, %edi
317#else
904057bc 318 cmpb %cl, 1(%edx)
6abf3465 319#endif
904057bc
L		 320 jne L(neq)
321 cmpl $0, %ecx
322 je L(eq)
323
6abf3465
UD		 324#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
325 cmp $2, REM
904057bc
L		 326 je L(eq)
327#endif
328 movzbl 2(%eax), %ecx
6abf3465
UD		 329#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
330 movzbl 2(%edx), %edi
331# ifdef PIC
332 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
333 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
334# else
335 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
336 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
337# endif
338 cmpl %ecx, %edi
339#else
904057bc 340 cmpb %cl, 2(%edx)
6abf3465 341#endif
904057bc
L		 342 jne L(neq)
343 cmpl $0, %ecx
344 je L(eq)
345
6abf3465
UD		 346#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
347 cmp $3, REM
904057bc
L		 348 je L(eq)
349#endif
350 movzbl 3(%eax), %ecx
6abf3465
UD		 351#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
352 movzbl 3(%edx), %edi
353# ifdef PIC
354 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
355 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
356# else
357 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
358 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
359# endif
360 cmpl %ecx, %edi
361#else
904057bc 362 cmpb %cl, 3(%edx)
6abf3465 363#endif
904057bc
L		 364 jne L(neq)
365 cmpl $0, %ecx
366 je L(eq)
367
6abf3465
UD		 368#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
369 cmp $4, REM
904057bc
L		 370 je L(eq)
371#endif
372 movzbl 4(%eax), %ecx
6abf3465
UD		 373#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
374 movzbl 4(%edx), %edi
375# ifdef PIC
376 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
377 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
378# else
379 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
380 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
381# endif
382 cmpl %ecx, %edi
383#else
904057bc 384 cmpb %cl, 4(%edx)
6abf3465 385#endif
904057bc
L		 386 jne L(neq)
387 cmpl $0, %ecx
388 je L(eq)
389
6abf3465
UD		 390#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
391 cmp $5, REM
904057bc
L		 392 je L(eq)
393#endif
394 movzbl 5(%eax), %ecx
6abf3465
UD		 395#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
396 movzbl 5(%edx), %edi
397# ifdef PIC
398 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
399 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
400# else
401 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
402 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
403# endif
404 cmpl %ecx, %edi
405#else
904057bc 406 cmpb %cl, 5(%edx)
6abf3465 407#endif
904057bc
L		 408 jne L(neq)
409 cmpl $0, %ecx
410 je L(eq)
411
6abf3465
UD		 412#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
413 cmp $6, REM
904057bc
L		 414 je L(eq)
415#endif
416 movzbl 6(%eax), %ecx
6abf3465
UD		 417#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
418 movzbl 6(%edx), %edi
419# ifdef PIC
420 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
421 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
422# else
423 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
424 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
425# endif
426 cmpl %ecx, %edi
427#else
904057bc 428 cmpb %cl, 6(%edx)
6abf3465 429#endif
904057bc
L		 430 jne L(neq)
431 cmpl $0, %ecx
432 je L(eq)
433
6abf3465
UD		 434#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
435 cmp $7, REM
904057bc
L		 436 je L(eq)
437#endif
438 movzbl 7(%eax), %ecx
6abf3465
UD		 439#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
440 movzbl 7(%edx), %edi
441# ifdef PIC
442 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
443 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
444# else
445 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
446 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
447# endif
448 cmpl %ecx, %edi
449#else
904057bc 450 cmpb %cl, 7(%edx)
6abf3465 451#endif
904057bc
L		 452 jne L(neq)
453 cmpl $0, %ecx
454 je L(eq)
455
6abf3465
UD		 456#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
457 sub $8, REM
904057bc
L		 458 je L(eq)
459#endif
460 add $8, %eax
461 add $8, %edx
462
6abf3465 463#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
904057bc 464 PUSH (%edi)
6abf3465 465#endif
904057bc 466 PUSH (%esi)
6abf3465 467#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
6bb74d9f 468 cfi_remember_state
dc21aae6 469#endif
904057bc
L		 470 mov %edx, %edi
471 mov %eax, %esi
472 xorl %eax, %eax
473L(check_offset):
6abf3465 474 movl %edi, %edx
904057bc 475 movl %esi, %ecx
6abf3465 476 andl $0xfff, %edx
904057bc 477 andl $0xfff, %ecx
6abf3465
UD		 478 cmpl %edx, %ecx
479 cmovl %edx, %ecx
904057bc
L		 480 lea -0xff0(%ecx), %edx
481 sub %edx, %edi
482 sub %edx, %esi
483 testl %edx, %edx
484 jg L(crosspage)
485L(loop):
486 movdqu (%esi,%edx), %xmm2
487 movdqu (%edi,%edx), %xmm1
6abf3465 488 TOLOWER (%xmm2, %xmm1)
904057bc
L		 489 pcmpistri $0x1a, %xmm2, %xmm1
490 jbe L(end)
491
6abf3465
UD		 492#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
493 sub $16, REM
904057bc
L		 494 jbe L(more16byteseq)
495#endif
496
497 add $16, %edx
498 jle L(loop)
499L(crosspage):
500 movzbl (%edi,%edx), %eax
6abf3465
UD		 501 movzbl (%esi,%edx), %ecx
502#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
503# ifdef PIC
504 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
505 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
506# else
507 movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
508 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
509# endif
510#endif
511 subl %ecx, %eax
904057bc 512 jne L(ret)
6abf3465 513 testl %ecx, %ecx
904057bc 514 je L(ret)
6abf3465
UD		 515#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
516 sub $1, REM
904057bc
L		 517 jbe L(more16byteseq)
518#endif
519 inc %edx
520 cmp $15, %edx
521 jle L(crosspage)
6cc2b8a6
L		 522 add %edx, %edi
523 add %edx, %esi
904057bc
L		 524 jmp L(check_offset)
525
28be6098 526 .p2align 4
904057bc
L		 527L(end):
528 jnc L(ret)
6abf3465
UD		 529#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
530 sub %ecx, REM
904057bc
L		 531 jbe L(more16byteseq)
532#endif
6abf3465
UD		 533 lea (%ecx,%edx), %ecx
534 movzbl (%edi,%ecx), %eax
535 movzbl (%esi,%ecx), %ecx
536#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
537# ifdef PIC
538 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
539 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
540# else
541 movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
542 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
543# endif
544#endif
904057bc
L		 545 subl %ecx, %eax
546L(ret):
547 POP (%esi)
548 POP (%edi)
6abf3465
UD		 549#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
550 POP (REM)
551#endif
552#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
553# ifdef PIC
904057bc 554 POP (%ebx)
6abf3465 555# endif
904057bc
L		 556#endif
557 ret
558
28be6098 559 .p2align 4
6abf3465 560#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
dc21aae6 561 cfi_restore_state
904057bc
L		 562L(more16byteseq):
563 POP (%esi)
6abf3465 564# ifdef USE_AS_STRNCMP
904057bc 565 POP (%edi)
6abf3465 566# endif
904057bc
L		 567#endif
568L(eq):
569 xorl %eax, %eax
28be6098 570 RETURN
6bb74d9f 571
904057bc
L		 572L(neq):
573 mov $1, %eax
574 ja L(neq_bigger)
575 neg %eax
576L(neq_bigger):
28be6098
L		 577 RETURN
578
904057bc
L		 579L(less16bytes):
580 add $0xfefefeff, %ecx
581 jnc L(less4bytes)
6abf3465
UD		 582#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
583 movd %xmm3, %edi
584 xor %edi, %ecx
585#else
904057bc 586 xor (%edx), %ecx
6abf3465 587#endif
904057bc
L		 588 or $0xfefefeff, %ecx
589 add $1, %ecx
590 jnz L(less4bytes)
591
6abf3465
UD		 592#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
593 cmp $4, REM
904057bc
L		 594 jbe L(eq)
595#endif
6abf3465
UD		 596#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
597 psrldq $4, %xmm3
598 psrldq $4, %xmm4
599 movd %xmm3, %ecx
600 movd %xmm4, %edi
601 cmp %edi, %ecx
602 mov %ecx, %edi
603#else
904057bc
L		 604 mov 4(%edx), %ecx
605 cmp 4(%eax), %ecx
6abf3465 606#endif
904057bc
L		 607 jne L(more4bytes)
608 add $0xfefefeff, %ecx
609 jnc L(more4bytes)
6abf3465
UD		 610#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
611 xor %edi, %ecx
612#else
904057bc 613 xor 4(%edx), %ecx
6abf3465 614#endif
904057bc
L		 615 or $0xfefefeff, %ecx
616 add $1, %ecx
617 jnz L(more4bytes)
618
6abf3465
UD		 619#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
620 sub $8, REM
904057bc
L		 621 jbe L(eq)
622#endif
623
624 add $8, %edx
625 add $8, %eax
626L(less4bytes):
627
628 movzbl (%eax), %ecx
6abf3465
UD		 629#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
630 movzbl (%edx), %edi
631# ifdef PIC
632 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
633 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
634# else
635 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
636 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
637# endif
638 cmpl %ecx, %edi
639#else
904057bc 640 cmpb %cl, (%edx)
6abf3465 641#endif
904057bc
L		 642 jne L(neq)
643 cmpl $0, %ecx
644 je L(eq)
645
6abf3465
UD		 646#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
647 cmp $1, REM
904057bc
L		 648 je L(eq)
649#endif
650 movzbl 1(%eax), %ecx
6abf3465
UD		 651#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
652 movzbl 1(%edx), %edi
653# ifdef PIC
654 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
655 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
656# else
657 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
658 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
659# endif
660 cmpl %ecx, %edi
661#else
904057bc 662 cmpb %cl, 1(%edx)
6abf3465 663#endif
904057bc
L		 664 jne L(neq)
665 cmpl $0, %ecx
666 je L(eq)
667
6abf3465
UD		 668#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
669 cmp $2, REM
904057bc
L		 670 je L(eq)
671#endif
672
673 movzbl 2(%eax), %ecx
6abf3465
UD		 674#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
675 movzbl 2(%edx), %edi
676# ifdef PIC
677 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
678 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
679# else
680 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
681 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
682# endif
683 cmpl %ecx, %edi
684#else
904057bc 685 cmpb %cl, 2(%edx)
6abf3465 686#endif
904057bc
L		 687 jne L(neq)
688 cmpl $0, %ecx
689 je L(eq)
690
6abf3465
UD		 691#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
692 cmp $3, REM
904057bc
L		 693 je L(eq)
694#endif
695 movzbl 3(%eax), %ecx
6abf3465
UD		 696#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
697 movzbl 3(%edx), %edi
698# ifdef PIC
699 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
700 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
701# else
702 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
703 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
704# endif
705 cmpl %ecx, %edi
706#else
904057bc 707 cmpb %cl, 3(%edx)
6abf3465 708#endif
904057bc
L		 709 jne L(neq)
710 cmpl $0, %ecx
711 je L(eq)
712
713L(more4bytes):
6abf3465
UD		 714#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
715 cmp $4, REM
904057bc
L		 716 je L(eq)
717#endif
718 movzbl 4(%eax), %ecx
6abf3465
UD		 719#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
720 movzbl 4(%edx), %edi
721# ifdef PIC
722 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
723 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
724# else
725 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
726 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
727# endif
728 cmpl %ecx, %edi
729#else
904057bc 730 cmpb %cl, 4(%edx)
6abf3465 731#endif
904057bc
L		 732 jne L(neq)
733 cmpl $0, %ecx
734 je L(eq)
735
736
6abf3465
UD		 737#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
738 cmp $5, REM
904057bc
L		 739 je L(eq)
740#endif
741 movzbl 5(%eax), %ecx
6abf3465
UD		 742#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
743 movzbl 5(%edx), %edi
744# ifdef PIC
745 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
746 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
747# else
748 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
749 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
750# endif
751 cmpl %ecx, %edi
752#else
904057bc 753 cmpb %cl, 5(%edx)
6abf3465 754#endif
904057bc
L		 755 jne L(neq)
756 cmpl $0, %ecx
757 je L(eq)
758
6abf3465
UD		 759#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
760 cmp $6, REM
904057bc
L		 761 je L(eq)
762#endif
763 movzbl 6(%eax), %ecx
6abf3465
UD		 764#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
765 movzbl 6(%edx), %edi
766# ifdef PIC
767 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
768 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
769# else
770 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
771 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
772# endif
773 cmpl %ecx, %edi
774#else
904057bc 775 cmpb %cl, 6(%edx)
6abf3465 776#endif
904057bc
L		 777 jne L(neq)
778 cmpl $0, %ecx
779 je L(eq)
780
6abf3465
UD		 781#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
782 cmp $7, REM
904057bc
L		 783 je L(eq)
784#endif
785 movzbl 7(%eax), %ecx
6abf3465
UD		 786#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
787 movzbl 7(%edx), %edi
788# ifdef PIC
789 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
790 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
791# else
792 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
793 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
794# endif
795 cmpl %ecx, %edi
796#else
904057bc 797 cmpb %cl, 7(%edx)
6abf3465 798#endif
904057bc 799 jne L(neq)
6bb74d9f 800 jmp L(eq)
904057bc
L		 801
802END (STRCMP)
803
804#endif
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