1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
|
/* strcmp with SSE4.2
Copyright (C) 2010-2021 Free Software Foundation, Inc.
Contributed by Intel Corporation.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#if IS_IN (libc)
#include <sysdep.h>
#include "asm-syntax.h"
#define CFI_PUSH(REG) \
cfi_adjust_cfa_offset (4); \
cfi_rel_offset (REG, 0)
#define CFI_POP(REG) \
cfi_adjust_cfa_offset (-4); \
cfi_restore (REG)
#define PUSH(REG) pushl REG; CFI_PUSH (REG)
#define POP(REG) popl REG; CFI_POP (REG)
#ifdef USE_AS_STRNCMP
# ifndef STRCMP
# define STRCMP __strncmp_sse4_2
# endif
# define STR1 8
# define STR2 STR1+4
# define CNT STR2+4
# define RETURN POP (REM); ret; .p2align 4; CFI_PUSH (REM)
# define REM %ebp
#elif defined USE_AS_STRCASECMP_L
# include "locale-defines.h"
# ifndef STRCMP
# define STRCMP __strcasecmp_l_sse4_2
# endif
# ifdef PIC
# define STR1 12
# else
# define STR1 8
# endif
# define STR2 STR1+4
# define LOCALE 12 /* Loaded before the adjustment. */
# ifdef PIC
# define RETURN POP (%edi); POP (%ebx); ret; \
.p2align 4; CFI_PUSH (%ebx); CFI_PUSH (%edi)
# else
# define RETURN POP (%edi); ret; .p2align 4; CFI_PUSH (%edi)
# endif
# define NONASCII __strcasecmp_nonascii
#elif defined USE_AS_STRNCASECMP_L
# include "locale-defines.h"
# ifndef STRCMP
# define STRCMP __strncasecmp_l_sse4_2
# endif
# ifdef PIC
# define STR1 16
# else
# define STR1 12
# endif
# define STR2 STR1+4
# define CNT STR2+4
# define LOCALE 16 /* Loaded before the adjustment. */
# ifdef PIC
# define RETURN POP (%edi); POP (REM); POP (%ebx); ret; \
.p2align 4; \
CFI_PUSH (%ebx); CFI_PUSH (REM); CFI_PUSH (%edi)
# else
# define RETURN POP (%edi); POP (REM); ret; \
.p2align 4; CFI_PUSH (REM); CFI_PUSH (%edi)
# endif
# define REM %ebp
# define NONASCII __strncasecmp_nonascii
#else
# ifndef STRCMP
# define STRCMP __strcmp_sse4_2
# endif
# define STR1 4
# define STR2 STR1+4
# define RETURN ret; .p2align 4
#endif
.section .text.sse4.2,"ax",@progbits
#ifdef USE_AS_STRCASECMP_L
ENTRY (__strcasecmp_sse4_2)
# ifdef PIC
PUSH (%ebx)
LOAD_PIC_REG(bx)
movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
movl %gs:(%eax), %eax
# else
movl %gs:__libc_tsd_LOCALE@NTPOFF, %eax
# endif
# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
# else
movl (%eax), %eax
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
# ifdef PIC
je L(ascii)
POP (%ebx)
jmp __strcasecmp_nonascii
# else
jne __strcasecmp_nonascii
jmp L(ascii)
# endif
END (__strcasecmp_sse4_2)
#endif
#ifdef USE_AS_STRNCASECMP_L
ENTRY (__strncasecmp_sse4_2)
# ifdef PIC
PUSH (%ebx)
LOAD_PIC_REG(bx)
movl __libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
movl %gs:(%eax), %eax
# else
movl %gs:__libc_tsd_LOCALE@NTPOFF, %eax
# endif
# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
# else
movl (%eax), %eax
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
# ifdef PIC
je L(ascii)
POP (%ebx)
jmp __strncasecmp_nonascii
# else
jne __strncasecmp_nonascii
jmp L(ascii)
# endif
END (__strncasecmp_sse4_2)
#endif
ENTRY (STRCMP)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movl LOCALE(%esp), %eax
# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
movl LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
# else
movl (%eax), %eax
# endif
testl $1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%eax)
jne NONASCII
# ifdef PIC
PUSH (%ebx)
LOAD_PIC_REG(bx)
# endif
L(ascii):
.section .rodata.cst16,"aM",@progbits,16
.align 16
.Lbelowupper:
.quad 0x4040404040404040
.quad 0x4040404040404040
.Ltopupper:
.quad 0x5b5b5b5b5b5b5b5b
.quad 0x5b5b5b5b5b5b5b5b
.Ltouppermask:
.quad 0x2020202020202020
.quad 0x2020202020202020
.previous
# ifdef PIC
# define UCLOW_reg .Lbelowupper@GOTOFF(%ebx)
# define UCHIGH_reg .Ltopupper@GOTOFF(%ebx)
# define LCQWORD_reg .Ltouppermask@GOTOFF(%ebx)
# else
# define UCLOW_reg .Lbelowupper
# define UCHIGH_reg .Ltopupper
# define LCQWORD_reg .Ltouppermask
# endif
#endif
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
PUSH (REM)
#endif
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
PUSH (%edi)
#endif
mov STR1(%esp), %edx
mov STR2(%esp), %eax
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
movl CNT(%esp), REM
test REM, REM
je L(eq)
#endif
mov %dx, %cx
and $0xfff, %cx
cmp $0xff0, %cx
ja L(first4bytes)
movdqu (%edx), %xmm2
mov %eax, %ecx
and $0xfff, %ecx
cmp $0xff0, %ecx
ja L(first4bytes)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# define TOLOWER(reg1, reg2) \
movdqa reg1, %xmm3; \
movdqa UCHIGH_reg, %xmm4; \
movdqa reg2, %xmm5; \
movdqa UCHIGH_reg, %xmm6; \
pcmpgtb UCLOW_reg, %xmm3; \
pcmpgtb reg1, %xmm4; \
pcmpgtb UCLOW_reg, %xmm5; \
pcmpgtb reg2, %xmm6; \
pand %xmm4, %xmm3; \
pand %xmm6, %xmm5; \
pand LCQWORD_reg, %xmm3; \
pand LCQWORD_reg, %xmm5; \
por %xmm3, reg1; \
por %xmm5, reg2
movdqu (%eax), %xmm1
TOLOWER (%xmm2, %xmm1)
movd %xmm2, %ecx
movd %xmm1, %edi
movdqa %xmm2, %xmm3
movdqa %xmm1, %xmm4
cmpl %edi, %ecx
#else
# define TOLOWER(reg1, reg)
movd %xmm2, %ecx
cmp (%eax), %ecx
#endif
jne L(less4bytes)
#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
movdqu (%eax), %xmm1
#endif
pxor %xmm2, %xmm1
pxor %xmm0, %xmm0
ptest %xmm1, %xmm0
jnc L(less16bytes)
pcmpeqb %xmm0, %xmm2
ptest %xmm2, %xmm0
jnc L(less16bytes)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $16, REM
jbe L(eq)
#endif
add $16, %edx
add $16, %eax
L(first4bytes):
movzbl (%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl (%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, (%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $1, REM
je L(eq)
#endif
movzbl 1(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 1(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 1(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $2, REM
je L(eq)
#endif
movzbl 2(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 2(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 2(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $3, REM
je L(eq)
#endif
movzbl 3(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 3(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 3(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $4, REM
je L(eq)
#endif
movzbl 4(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 4(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 4(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $5, REM
je L(eq)
#endif
movzbl 5(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 5(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 5(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $6, REM
je L(eq)
#endif
movzbl 6(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 6(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 6(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $7, REM
je L(eq)
#endif
movzbl 7(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 7(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 7(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $8, REM
je L(eq)
#endif
add $8, %eax
add $8, %edx
#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
PUSH (%edi)
#endif
PUSH (%esi)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cfi_remember_state
#endif
mov %edx, %edi
mov %eax, %esi
xorl %eax, %eax
L(check_offset):
movl %edi, %edx
movl %esi, %ecx
andl $0xfff, %edx
andl $0xfff, %ecx
cmpl %edx, %ecx
cmovl %edx, %ecx
lea -0xff0(%ecx), %edx
sub %edx, %edi
sub %edx, %esi
testl %edx, %edx
jg L(crosspage)
L(loop):
movdqu (%esi,%edx), %xmm2
movdqu (%edi,%edx), %xmm1
TOLOWER (%xmm2, %xmm1)
pcmpistri $0x1a, %xmm2, %xmm1
jbe L(end)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $16, REM
jbe L(more16byteseq)
#endif
add $16, %edx
jle L(loop)
L(crosspage):
movzbl (%edi,%edx), %eax
movzbl (%esi,%edx), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
# endif
#endif
subl %ecx, %eax
jne L(ret)
testl %ecx, %ecx
je L(ret)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $1, REM
jbe L(more16byteseq)
#endif
inc %edx
cmp $15, %edx
jle L(crosspage)
add %edx, %edi
add %edx, %esi
jmp L(check_offset)
.p2align 4
L(end):
jnc L(ret)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub %ecx, REM
jbe L(more16byteseq)
#endif
lea (%ecx,%edx), %ecx
movzbl (%edi,%ecx), %eax
movzbl (%esi,%ecx), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%eax,4), %eax
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
# endif
#endif
subl %ecx, %eax
L(ret):
POP (%esi)
POP (%edi)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
POP (REM)
#endif
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
# ifdef PIC
POP (%ebx)
# endif
#endif
ret
.p2align 4
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cfi_restore_state
L(more16byteseq):
POP (%esi)
# ifdef USE_AS_STRNCMP
POP (%edi)
# endif
#endif
L(eq):
xorl %eax, %eax
RETURN
L(neq):
mov $1, %eax
ja L(neq_bigger)
neg %eax
L(neq_bigger):
RETURN
L(less16bytes):
add $0xfefefeff, %ecx
jnc L(less4bytes)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movd %xmm3, %edi
xor %edi, %ecx
#else
xor (%edx), %ecx
#endif
or $0xfefefeff, %ecx
add $1, %ecx
jnz L(less4bytes)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $4, REM
jbe L(eq)
#endif
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
psrldq $4, %xmm3
psrldq $4, %xmm4
movd %xmm3, %ecx
movd %xmm4, %edi
cmp %edi, %ecx
mov %ecx, %edi
#else
mov 4(%edx), %ecx
cmp 4(%eax), %ecx
#endif
jne L(more4bytes)
add $0xfefefeff, %ecx
jnc L(more4bytes)
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
xor %edi, %ecx
#else
xor 4(%edx), %ecx
#endif
or $0xfefefeff, %ecx
add $1, %ecx
jnz L(more4bytes)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
sub $8, REM
jbe L(eq)
#endif
add $8, %edx
add $8, %eax
L(less4bytes):
movzbl (%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl (%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, (%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $1, REM
je L(eq)
#endif
movzbl 1(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 1(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 1(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $2, REM
je L(eq)
#endif
movzbl 2(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 2(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 2(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $3, REM
je L(eq)
#endif
movzbl 3(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 3(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 3(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
L(more4bytes):
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $4, REM
je L(eq)
#endif
movzbl 4(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 4(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 4(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $5, REM
je L(eq)
#endif
movzbl 5(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 5(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 5(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $6, REM
je L(eq)
#endif
movzbl 6(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 6(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 6(%edx)
#endif
jne L(neq)
cmpl $0, %ecx
je L(eq)
#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
cmp $7, REM
je L(eq)
#endif
movzbl 7(%eax), %ecx
#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
movzbl 7(%edx), %edi
# ifdef PIC
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower@GOTOFF+128*4(%ebx,%edi,4), %edi
# else
movl _nl_C_LC_CTYPE_tolower+128*4(,%ecx,4), %ecx
movl _nl_C_LC_CTYPE_tolower+128*4(,%edi,4), %edi
# endif
cmpl %ecx, %edi
#else
cmpb %cl, 7(%edx)
#endif
jne L(neq)
jmp L(eq)
END (STRCMP)
#endif
|
