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904057bc 1/* strcmp with SSE4.2
6abf3465 2 Copyright (C) 2010, 2011 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
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
20
21#ifndef NOT_IN_libc
22
23#include <sysdep.h>
24#include "asm-syntax.h"
25
26#define CFI_PUSH(REG) \
27 cfi_adjust_cfa_offset (4); \
28 cfi_rel_offset (REG, 0)
29
30#define CFI_POP(REG) \
31 cfi_adjust_cfa_offset (-4); \
32 cfi_restore (REG)
33
34#define PUSH(REG) pushl REG; CFI_PUSH (REG)
35#define POP(REG) popl REG; CFI_POP (REG)
36
6abf3465 37#ifdef USE_AS_STRNCMP
904057bc 38# ifndef STRCMP
6abf3465 39# define STRCMP __strncmp_sse4_2
904057bc 40# endif
6abf3465 41# define STR1 8
904057bc 42# define STR2 STR1+4
6abf3465
UD		 43# define CNT STR2+4
44# define RETURN POP (REM); ret; .p2align 4; CFI_PUSH (REM)
45# define REM %ebp
46#elif defined USE_AS_STRCASECMP_L
47# include "locale-defines.h"
904057bc 48# ifndef STRCMP
6abf3465 49# define STRCMP __strcasecmp_l_sse4_2
904057bc 50# endif
6abf3465
UD		 51# define STR1 12
52# define STR2 STR1+4
53# define LOCALE 12 /* Loaded before the adjustement. */
54# ifdef PIC
55# define RETURN POP (%edi); POP (%ebx); ret; \
56 .p2align 4; CFI_PUSH (%ebx); CFI_PUSH (%edi)
57# else
58# define RETURN POP (%edi); ret; .p2align 4; CFI_PUSH (%edi)
59# endif
60# define NONASCII __strcasecmp_nonascii
61#elif defined USE_AS_STRNCASECMP_L
62# include "locale-defines.h"
63# ifndef STRCMP
64# define STRCMP __strncasecmp_l_sse4_2
65# endif
66# define STR1 16
904057bc
L		 67# define STR2 STR1+4
68# define CNT STR2+4
6abf3465
UD		 69# define LOCALE 16 /* Loaded before the adjustement. */
70# ifdef PIC
71# define RETURN POP (%edi); POP (REM); POP (%ebx); ret; \
72 .p2align 4; \
73 CFI_PUSH (%ebx); CFI_PUSH (REM); CFI_PUSH (%edi)
74# else
75# define RETURN POP (%edi); POP (REM); ret; \
76 .p2align 4; CFI_PUSH (REM); CFI_PUSH (%edi)
77# endif
78# define REM %ebp
79# define NONASCII __strncasecmp_nonascii
80#else
81# ifndef STRCMP
82# define STRCMP __strcmp_sse4_2
83# endif
84# define STR1 4
85# define STR2 STR1+4
86# define RETURN ret; .p2align 4
904057bc
L		 87#endif
88
89 .section .text.sse4.2,"ax",@progbits
6abf3465
UD		 90
91#ifdef USE_AS_STRCASECMP_L
92ENTRY (__strcasecmp_sse4_2)
93# ifdef PIC
94 PUSH (%ebx)
95 call __i686.get_pc_thunk.bx
96 addl $_GLOBAL_OFFSET_TABLE_, %ebx
97 movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
98# else
99 movl __libc_tsd_LOCALE@NTPOFF, %eax
100# endif
101 movl %gs:(%eax), %eax
102# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
103 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
104# else
105 movl (%eax), %eax
106# endif
107 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
108 jne __strcasecmp_nonascii
109 jmp L(ascii)
110END (__strcasecmp_sse4_2)
111#endif
112
113#ifdef USE_AS_STRNCASECMP_L
114ENTRY (__strncasecmp_sse4_2)
115# ifdef PIC
116 PUSH (%ebx)
117 call __i686.get_pc_thunk.bx
118 addl $_GLOBAL_OFFSET_TABLE_, %ebx
119 movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
120# else
121 movl __libc_tsd_LOCALE@NTPOFF, %eax
122# endif
123 movl %gs:(%eax), %eax
124# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
125 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
126# else
127 movl (%eax), %eax
128# endif
129 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
130 jne __strncasecmp_nonascii
131 jmp L(ascii)
132END (__strncasecmp_sse4_2)
133#endif
134
135 ENTRY (STRCMP)
136#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
137 movl LOCALE(%esp), %eax
138# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
139 movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
140# else
141 movl (%eax), %eax
142# endif
143 testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
144 jne NONASCII
145
146# ifdef PIC
147 PUSH (%ebx)
148 call __i686.get_pc_thunk.bx
149 addl $_GLOBAL_OFFSET_TABLE_, %ebx
150# endif
151L(ascii):
152 .section .rodata.cst16,"aM",@progbits,16
153 .align 16
154.Lbelowupper:
155 .quad 0x4040404040404040
156 .quad 0x4040404040404040
157.Ltopupper:
158 .quad 0x5b5b5b5b5b5b5b5b
159 .quad 0x5b5b5b5b5b5b5b5b
160.Ltouppermask:
161 .quad 0x2020202020202020
162 .quad 0x2020202020202020
163 .previous
164
165# ifdef PIC
166# define UCLOW_reg .Lbelowupper@GOTOFF(%ebx)
167# define UCHIGH_reg .Ltopupper@GOTOFF(%ebx)
168# define LCQWORD_reg .Ltouppermask@GOTOFF(%ebx)
169# else
170# define UCLOW_reg .Lbelowupper
171# define UCHIGH_reg .Ltopupper
172# define LCQWORD_reg .Ltouppermask
173# endif
174#endif
175
176#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
177 PUSH (REM)
178#endif
179#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
180 PUSH (%edi)
904057bc
L		 181#endif
182 mov STR1(%esp), %edx
183 mov STR2(%esp), %eax
6abf3465
UD		 184#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
185 movl CNT(%esp), REM
186 test REM, REM
904057bc
L		 187 je L(eq)
188#endif
189 mov %dx, %cx
190 and $0xfff, %cx
191 cmp $0xff0, %cx
192 ja L(first4bytes)
193 movdqu (%edx), %xmm2
194 mov %eax, %ecx
195 and $0xfff, %ecx
196 cmp $0xff0, %ecx
197 ja L(first4bytes)
6abf3465
UD		 198#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
199# define TOLOWER(reg1, reg2) \
200 movdqa reg1, %xmm3; \
201 movdqa UCHIGH_reg, %xmm4; \
202 movdqa reg2, %xmm5; \
203 movdqa UCHIGH_reg, %xmm6; \
204 pcmpgtb UCLOW_reg, %xmm3; \
205 pcmpgtb reg1, %xmm4; \
206 pcmpgtb UCLOW_reg, %xmm5; \
207 pcmpgtb reg2, %xmm6; \
208 pand %xmm4, %xmm3; \
209 pand %xmm6, %xmm5; \
210 pand LCQWORD_reg, %xmm3; \
211 pand LCQWORD_reg, %xmm5; \
212 por %xmm3, reg1; \
213 por %xmm5, reg2
214
215 movdqu (%eax), %xmm1
216 TOLOWER (%xmm2, %xmm1)
217 movd %xmm2, %ecx
218 movd %xmm1, %edi
219 movdqa %xmm2, %xmm3
220 movdqa %xmm1, %xmm4
221 cmpl %edi, %ecx
222#else
223# define TOLOWER(reg1, reg)
224
904057bc
L		 225 movd %xmm2, %ecx
226 cmp (%eax), %ecx
6abf3465 227#endif
904057bc 228 jne L(less4bytes)
6abf3465 229#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
904057bc 230 movdqu (%eax), %xmm1
6abf3465 231#endif
904057bc
L		 232 pxor %xmm2, %xmm1
233 pxor %xmm0, %xmm0
234 ptest %xmm1, %xmm0
235 jnc L(less16bytes)
236 pcmpeqb %xmm0, %xmm2
237 ptest %xmm2, %xmm0
238 jnc L(less16bytes)
239
6abf3465
UD		 240#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
241 sub $16, REM
904057bc
L		 242 jbe L(eq)
243#endif
244 add $16, %edx
245 add $16, %eax
246L(first4bytes):
247 movzbl (%eax), %ecx
6abf3465
UD		 248#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
249 movzbl (%edx), %edi
250# ifdef PIC
251 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
252 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
253# else
254 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
255 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
256# endif
257 cmpl %ecx, %edi
258#else
904057bc 259 cmpb %cl, (%edx)
6abf3465 260#endif
904057bc
L		 261 jne L(neq)
262 cmpl $0, %ecx
263 je L(eq)
264
6abf3465
UD		 265#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
266 cmp $1, REM
904057bc
L		 267 je L(eq)
268#endif
269
270 movzbl 1(%eax), %ecx
6abf3465
UD		 271#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
272 movzbl 1(%edx), %edi
273# ifdef PIC
274 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
275 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
276# else
277 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
278 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
279# endif
280 cmpl %ecx, %edi
281#else
904057bc 282 cmpb %cl, 1(%edx)
6abf3465 283#endif
904057bc
L		 284 jne L(neq)
285 cmpl $0, %ecx
286 je L(eq)
287
6abf3465
UD		 288#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
289 cmp $2, REM
904057bc
L		 290 je L(eq)
291#endif
292 movzbl 2(%eax), %ecx
6abf3465
UD		 293#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
294 movzbl 2(%edx), %edi
295# ifdef PIC
296 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
297 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
298# else
299 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
300 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
301# endif
302 cmpl %ecx, %edi
303#else
904057bc 304 cmpb %cl, 2(%edx)
6abf3465 305#endif
904057bc
L		 306 jne L(neq)
307 cmpl $0, %ecx
308 je L(eq)
309
6abf3465
UD		 310#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
311 cmp $3, REM
904057bc
L		 312 je L(eq)
313#endif
314 movzbl 3(%eax), %ecx
6abf3465
UD		 315#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
316 movzbl 3(%edx), %edi
317# ifdef PIC
318 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
319 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
320# else
321 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
322 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
323# endif
324 cmpl %ecx, %edi
325#else
904057bc 326 cmpb %cl, 3(%edx)
6abf3465 327#endif
904057bc
L		 328 jne L(neq)
329 cmpl $0, %ecx
330 je L(eq)
331
6abf3465
UD		 332#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
333 cmp $4, REM
904057bc
L		 334 je L(eq)
335#endif
336 movzbl 4(%eax), %ecx
6abf3465
UD		 337#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
338 movzbl 4(%edx), %edi
339# ifdef PIC
340 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
341 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
342# else
343 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
344 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
345# endif
346 cmpl %ecx, %edi
347#else
904057bc 348 cmpb %cl, 4(%edx)
6abf3465 349#endif
904057bc
L		 350 jne L(neq)
351 cmpl $0, %ecx
352 je L(eq)
353
6abf3465
UD		 354#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
355 cmp $5, REM
904057bc
L		 356 je L(eq)
357#endif
358 movzbl 5(%eax), %ecx
6abf3465
UD		 359#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
360 movzbl 5(%edx), %edi
361# ifdef PIC
362 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
363 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
364# else
365 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
366 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
367# endif
368 cmpl %ecx, %edi
369#else
904057bc 370 cmpb %cl, 5(%edx)
6abf3465 371#endif
904057bc
L		 372 jne L(neq)
373 cmpl $0, %ecx
374 je L(eq)
375
6abf3465
UD		 376#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
377 cmp $6, REM
904057bc
L		 378 je L(eq)
379#endif
380 movzbl 6(%eax), %ecx
6abf3465
UD		 381#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
382 movzbl 6(%edx), %edi
383# ifdef PIC
384 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
385 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
386# else
387 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
388 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
389# endif
390 cmpl %ecx, %edi
391#else
904057bc 392 cmpb %cl, 6(%edx)
6abf3465 393#endif
904057bc
L		 394 jne L(neq)
395 cmpl $0, %ecx
396 je L(eq)
397
6abf3465
UD		 398#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
399 cmp $7, REM
904057bc
L		 400 je L(eq)
401#endif
402 movzbl 7(%eax), %ecx
6abf3465
UD		 403#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
404 movzbl 7(%edx), %edi
405# ifdef PIC
406 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
407 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
408# else
409 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
410 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
411# endif
412 cmpl %ecx, %edi
413#else
904057bc 414 cmpb %cl, 7(%edx)
6abf3465 415#endif
904057bc
L		 416 jne L(neq)
417 cmpl $0, %ecx
418 je L(eq)
419
6abf3465
UD		 420#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
421 sub $8, REM
904057bc
L		 422 je L(eq)
423#endif
424 add $8, %eax
425 add $8, %edx
426
6abf3465 427#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
904057bc 428 PUSH (%edi)
6abf3465 429#endif
904057bc 430 PUSH (%esi)
6abf3465 431#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
6bb74d9f 432 cfi_remember_state
dc21aae6 433#endif
904057bc
L		 434 mov %edx, %edi
435 mov %eax, %esi
436 xorl %eax, %eax
437L(check_offset):
6abf3465 438 movl %edi, %edx
904057bc 439 movl %esi, %ecx
6abf3465 440 andl $0xfff, %edx
904057bc 441 andl $0xfff, %ecx
6abf3465
UD		 442 cmpl %edx, %ecx
443 cmovl %edx, %ecx
904057bc
L		 444 lea -0xff0(%ecx), %edx
445 sub %edx, %edi
446 sub %edx, %esi
447 testl %edx, %edx
448 jg L(crosspage)
449L(loop):
450 movdqu (%esi,%edx), %xmm2
451 movdqu (%edi,%edx), %xmm1
6abf3465 452 TOLOWER (%xmm2, %xmm1)
904057bc
L		 453 pcmpistri $0x1a, %xmm2, %xmm1
454 jbe L(end)
455
6abf3465
UD		 456#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
457 sub $16, REM
904057bc
L		 458 jbe L(more16byteseq)
459#endif
460
461 add $16, %edx
462 jle L(loop)
463L(crosspage):
464 movzbl (%edi,%edx), %eax
6abf3465
UD		 465 movzbl (%esi,%edx), %ecx
466#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
467# ifdef PIC
468 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
469 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
470# else
471 movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
472 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
473# endif
474#endif
475 subl %ecx, %eax
904057bc 476 jne L(ret)
6abf3465 477 testl %ecx, %ecx
904057bc 478 je L(ret)
6abf3465
UD		 479#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
480 sub $1, REM
904057bc
L		 481 jbe L(more16byteseq)
482#endif
483 inc %edx
484 cmp $15, %edx
485 jle L(crosspage)
6cc2b8a6
L		 486 add %edx, %edi
487 add %edx, %esi
904057bc
L		 488 jmp L(check_offset)
489
28be6098 490 .p2align 4
904057bc
L		 491L(end):
492 jnc L(ret)
6abf3465
UD		 493#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
494 sub %ecx, REM
904057bc
L		 495 jbe L(more16byteseq)
496#endif
6abf3465
UD		 497 lea (%ecx,%edx), %ecx
498 movzbl (%edi,%ecx), %eax
499 movzbl (%esi,%ecx), %ecx
500#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
501# ifdef PIC
502 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
503 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
504# else
505 movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
506 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
507# endif
508#endif
904057bc
L		 509 subl %ecx, %eax
510L(ret):
511 POP (%esi)
512 POP (%edi)
6abf3465
UD		 513#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
514 POP (REM)
515#endif
516#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
517# ifdef PIC
904057bc 518 POP (%ebx)
6abf3465 519# endif
904057bc
L		 520#endif
521 ret
522
28be6098 523 .p2align 4
6abf3465 524#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
dc21aae6 525 cfi_restore_state
904057bc
L		 526L(more16byteseq):
527 POP (%esi)
6abf3465 528# ifdef USE_AS_STRNCMP
904057bc 529 POP (%edi)
6abf3465 530# endif
904057bc
L		 531#endif
532L(eq):
533 xorl %eax, %eax
28be6098 534 RETURN
6bb74d9f 535
904057bc
L		 536L(neq):
537 mov $1, %eax
538 ja L(neq_bigger)
539 neg %eax
540L(neq_bigger):
28be6098
L		 541 RETURN
542
904057bc
L		 543L(less16bytes):
544 add $0xfefefeff, %ecx
545 jnc L(less4bytes)
6abf3465
UD		 546#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
547 movd %xmm3, %edi
548 xor %edi, %ecx
549#else
904057bc 550 xor (%edx), %ecx
6abf3465 551#endif
904057bc
L		 552 or $0xfefefeff, %ecx
553 add $1, %ecx
554 jnz L(less4bytes)
555
6abf3465
UD		 556#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
557 cmp $4, REM
904057bc
L		 558 jbe L(eq)
559#endif
6abf3465
UD		 560#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
561 psrldq $4, %xmm3
562 psrldq $4, %xmm4
563 movd %xmm3, %ecx
564 movd %xmm4, %edi
565 cmp %edi, %ecx
566 mov %ecx, %edi
567#else
904057bc
L		 568 mov 4(%edx), %ecx
569 cmp 4(%eax), %ecx
6abf3465 570#endif
904057bc
L		 571 jne L(more4bytes)
572 add $0xfefefeff, %ecx
573 jnc L(more4bytes)
6abf3465
UD		 574#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
575 xor %edi, %ecx
576#else
904057bc 577 xor 4(%edx), %ecx
6abf3465 578#endif
904057bc
L		 579 or $0xfefefeff, %ecx
580 add $1, %ecx
581 jnz L(more4bytes)
582
6abf3465
UD		 583#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
584 sub $8, REM
904057bc
L		 585 jbe L(eq)
586#endif
587
588 add $8, %edx
589 add $8, %eax
590L(less4bytes):
591
592 movzbl (%eax), %ecx
6abf3465
UD		 593#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
594 movzbl (%edx), %edi
595# ifdef PIC
596 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
597 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
598# else
599 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
600 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
601# endif
602 cmpl %ecx, %edi
603#else
904057bc 604 cmpb %cl, (%edx)
6abf3465 605#endif
904057bc
L		 606 jne L(neq)
607 cmpl $0, %ecx
608 je L(eq)
609
6abf3465
UD		 610#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
611 cmp $1, REM
904057bc
L		 612 je L(eq)
613#endif
614 movzbl 1(%eax), %ecx
6abf3465
UD		 615#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
616 movzbl 1(%edx), %edi
617# ifdef PIC
618 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
619 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
620# else
621 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
622 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
623# endif
624 cmpl %ecx, %edi
625#else
904057bc 626 cmpb %cl, 1(%edx)
6abf3465 627#endif
904057bc
L		 628 jne L(neq)
629 cmpl $0, %ecx
630 je L(eq)
631
6abf3465
UD		 632#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
633 cmp $2, REM
904057bc
L		 634 je L(eq)
635#endif
636
637 movzbl 2(%eax), %ecx
6abf3465
UD		 638#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
639 movzbl 2(%edx), %edi
640# ifdef PIC
641 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
642 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
643# else
644 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
645 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
646# endif
647 cmpl %ecx, %edi
648#else
904057bc 649 cmpb %cl, 2(%edx)
6abf3465 650#endif
904057bc
L		 651 jne L(neq)
652 cmpl $0, %ecx
653 je L(eq)
654
6abf3465
UD		 655#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
656 cmp $3, REM
904057bc
L		 657 je L(eq)
658#endif
659 movzbl 3(%eax), %ecx
6abf3465
UD		 660#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
661 movzbl 3(%edx), %edi
662# ifdef PIC
663 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
664 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
665# else
666 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
667 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
668# endif
669 cmpl %ecx, %edi
670#else
904057bc 671 cmpb %cl, 3(%edx)
6abf3465 672#endif
904057bc
L		 673 jne L(neq)
674 cmpl $0, %ecx
675 je L(eq)
676
677L(more4bytes):
6abf3465
UD		 678#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
679 cmp $4, REM
904057bc
L		 680 je L(eq)
681#endif
682 movzbl 4(%eax), %ecx
6abf3465
UD		 683#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
684 movzbl 4(%edx), %edi
685# ifdef PIC
686 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
687 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
688# else
689 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
690 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
691# endif
692 cmpl %ecx, %edi
693#else
904057bc 694 cmpb %cl, 4(%edx)
6abf3465 695#endif
904057bc
L		 696 jne L(neq)
697 cmpl $0, %ecx
698 je L(eq)
699
700
6abf3465
UD		 701#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
702 cmp $5, REM
904057bc
L		 703 je L(eq)
704#endif
705 movzbl 5(%eax), %ecx
6abf3465
UD		 706#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
707 movzbl 5(%edx), %edi
708# ifdef PIC
709 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
710 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
711# else
712 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
713 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
714# endif
715 cmpl %ecx, %edi
716#else
904057bc 717 cmpb %cl, 5(%edx)
6abf3465 718#endif
904057bc
L		 719 jne L(neq)
720 cmpl $0, %ecx
721 je L(eq)
722
6abf3465
UD		 723#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
724 cmp $6, REM
904057bc
L		 725 je L(eq)
726#endif
727 movzbl 6(%eax), %ecx
6abf3465
UD		 728#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
729 movzbl 6(%edx), %edi
730# ifdef PIC
731 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
732 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
733# else
734 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
735 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
736# endif
737 cmpl %ecx, %edi
738#else
904057bc 739 cmpb %cl, 6(%edx)
6abf3465 740#endif
904057bc
L		 741 jne L(neq)
742 cmpl $0, %ecx
743 je L(eq)
744
6abf3465
UD		 745#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
746 cmp $7, REM
904057bc
L		 747 je L(eq)
748#endif
749 movzbl 7(%eax), %ecx
6abf3465
UD		 750#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
751 movzbl 7(%edx), %edi
752# ifdef PIC
753 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
754 movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
755# else
756 movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
757 movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
758# endif
759 cmpl %ecx, %edi
760#else
904057bc 761 cmpb %cl, 7(%edx)
6abf3465 762#endif
904057bc 763 jne L(neq)
6bb74d9f 764 jmp L(eq)
904057bc
L		 765
766END (STRCMP)
767
768#endif
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