1/* memset with SSE2 and REP string.
2 Copyright (C) 2010-2024 Free Software Foundation, Inc.
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
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#if IS_IN (libc)
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
35#define DEST PARMS
36#define CHR DEST+4
37#define LEN CHR+4
38#define SETRTNVAL movl DEST(%esp), %eax
39
40#ifdef PIC
41# define ENTRANCE PUSH (%ebx);
42# define RETURN_END POP (%ebx); ret
43# define RETURN RETURN_END; CFI_PUSH (%ebx)
44# define PARMS 8 /* Preserve EBX. */
45# define JMPTBL(I, B) I - B
46
47/* Load an entry in a jump table into EBX and branch to it. TABLE is a
48 jump table with relative offsets. */
49# define BRANCH_TO_JMPTBL_ENTRY(TABLE) \
50 /* We first load PC into EBX. */ \
51 SETUP_PIC_REG(bx); \
52 /* Get the address of the jump table. */ \
53 add $(TABLE - .), %ebx; \
54 /* Get the entry and convert the relative offset to the \
55 absolute address. */ \
56 add (%ebx,%ecx,4), %ebx; \
57 add %ecx, %edx; \
58 /* We loaded the jump table and adjusted EDX. Go. */ \
59 jmp *%ebx
60#else
61# define ENTRANCE
62# define RETURN_END ret
63# define RETURN RETURN_END
64# define PARMS 4
65# define JMPTBL(I, B) I
66
67/* Branch to an entry in a jump table. TABLE is a jump table with
68 absolute offsets. */
69# define BRANCH_TO_JMPTBL_ENTRY(TABLE) \
70 add %ecx, %edx; \
71 jmp *TABLE(,%ecx,4)
72#endif
73
74 .section .text.sse2,"ax",@progbits
75#if defined SHARED && IS_IN (libc)
76ENTRY (__memset_chk_sse2_rep)
77 movl 12(%esp), %eax
78 cmpl %eax, 16(%esp)
79 jb HIDDEN_JUMPTARGET (__chk_fail)
80END (__memset_chk_sse2_rep)
81#endif
82ENTRY (__memset_sse2_rep)
83 ENTRANCE
84
85 movl LEN(%esp), %ecx
86 movzbl CHR(%esp), %eax
87 movb %al, %ah
88 /* Fill the whole EAX with pattern. */
89 movl %eax, %edx
90 shl $16, %eax
91 or %edx, %eax
92 movl DEST(%esp), %edx
93 cmp $32, %ecx
94 jae L(32bytesormore)
95
96L(write_less32bytes):
97 BRANCH_TO_JMPTBL_ENTRY (L(table_less_32bytes))
98
99
100 .pushsection .rodata.sse2,"a",@progbits
101 ALIGN (2)
102L(table_less_32bytes):
103 .int JMPTBL (L(write_0bytes), L(table_less_32bytes))
104 .int JMPTBL (L(write_1bytes), L(table_less_32bytes))
105 .int JMPTBL (L(write_2bytes), L(table_less_32bytes))
106 .int JMPTBL (L(write_3bytes), L(table_less_32bytes))
107 .int JMPTBL (L(write_4bytes), L(table_less_32bytes))
108 .int JMPTBL (L(write_5bytes), L(table_less_32bytes))
109 .int JMPTBL (L(write_6bytes), L(table_less_32bytes))
110 .int JMPTBL (L(write_7bytes), L(table_less_32bytes))
111 .int JMPTBL (L(write_8bytes), L(table_less_32bytes))
112 .int JMPTBL (L(write_9bytes), L(table_less_32bytes))
113 .int JMPTBL (L(write_10bytes), L(table_less_32bytes))
114 .int JMPTBL (L(write_11bytes), L(table_less_32bytes))
115 .int JMPTBL (L(write_12bytes), L(table_less_32bytes))
116 .int JMPTBL (L(write_13bytes), L(table_less_32bytes))
117 .int JMPTBL (L(write_14bytes), L(table_less_32bytes))
118 .int JMPTBL (L(write_15bytes), L(table_less_32bytes))
119 .int JMPTBL (L(write_16bytes), L(table_less_32bytes))
120 .int JMPTBL (L(write_17bytes), L(table_less_32bytes))
121 .int JMPTBL (L(write_18bytes), L(table_less_32bytes))
122 .int JMPTBL (L(write_19bytes), L(table_less_32bytes))
123 .int JMPTBL (L(write_20bytes), L(table_less_32bytes))
124 .int JMPTBL (L(write_21bytes), L(table_less_32bytes))
125 .int JMPTBL (L(write_22bytes), L(table_less_32bytes))
126 .int JMPTBL (L(write_23bytes), L(table_less_32bytes))
127 .int JMPTBL (L(write_24bytes), L(table_less_32bytes))
128 .int JMPTBL (L(write_25bytes), L(table_less_32bytes))
129 .int JMPTBL (L(write_26bytes), L(table_less_32bytes))
130 .int JMPTBL (L(write_27bytes), L(table_less_32bytes))
131 .int JMPTBL (L(write_28bytes), L(table_less_32bytes))
132 .int JMPTBL (L(write_29bytes), L(table_less_32bytes))
133 .int JMPTBL (L(write_30bytes), L(table_less_32bytes))
134 .int JMPTBL (L(write_31bytes), L(table_less_32bytes))
135 .popsection
136
137 ALIGN (4)
138L(write_28bytes):
139 movl %eax, -28(%edx)
140L(write_24bytes):
141 movl %eax, -24(%edx)
142L(write_20bytes):
143 movl %eax, -20(%edx)
144L(write_16bytes):
145 movl %eax, -16(%edx)
146L(write_12bytes):
147 movl %eax, -12(%edx)
148L(write_8bytes):
149 movl %eax, -8(%edx)
150L(write_4bytes):
151 movl %eax, -4(%edx)
152L(write_0bytes):
153 SETRTNVAL
154 RETURN
155
156 ALIGN (4)
157L(write_29bytes):
158 movl %eax, -29(%edx)
159L(write_25bytes):
160 movl %eax, -25(%edx)
161L(write_21bytes):
162 movl %eax, -21(%edx)
163L(write_17bytes):
164 movl %eax, -17(%edx)
165L(write_13bytes):
166 movl %eax, -13(%edx)
167L(write_9bytes):
168 movl %eax, -9(%edx)
169L(write_5bytes):
170 movl %eax, -5(%edx)
171L(write_1bytes):
172 movb %al, -1(%edx)
173 SETRTNVAL
174 RETURN
175
176 ALIGN (4)
177L(write_30bytes):
178 movl %eax, -30(%edx)
179L(write_26bytes):
180 movl %eax, -26(%edx)
181L(write_22bytes):
182 movl %eax, -22(%edx)
183L(write_18bytes):
184 movl %eax, -18(%edx)
185L(write_14bytes):
186 movl %eax, -14(%edx)
187L(write_10bytes):
188 movl %eax, -10(%edx)
189L(write_6bytes):
190 movl %eax, -6(%edx)
191L(write_2bytes):
192 movw %ax, -2(%edx)
193 SETRTNVAL
194 RETURN
195
196 ALIGN (4)
197L(write_31bytes):
198 movl %eax, -31(%edx)
199L(write_27bytes):
200 movl %eax, -27(%edx)
201L(write_23bytes):
202 movl %eax, -23(%edx)
203L(write_19bytes):
204 movl %eax, -19(%edx)
205L(write_15bytes):
206 movl %eax, -15(%edx)
207L(write_11bytes):
208 movl %eax, -11(%edx)
209L(write_7bytes):
210 movl %eax, -7(%edx)
211L(write_3bytes):
212 movw %ax, -3(%edx)
213 movb %al, -1(%edx)
214 SETRTNVAL
215 RETURN
216
217 ALIGN (4)
218/* ECX > 32 and EDX is 4 byte aligned. */
219L(32bytesormore):
220 /* Fill xmm0 with the pattern. */
221 movd %eax, %xmm0
222 pshufd $0, %xmm0, %xmm0
223 testl $0xf, %edx
224 jz L(aligned_16)
225/* ECX > 32 and EDX is not 16 byte aligned. */
226L(not_aligned_16):
227 movdqu %xmm0, (%edx)
228 movl %edx, %eax
229 and $-16, %edx
230 add $16, %edx
231 sub %edx, %eax
232 add %eax, %ecx
233 movd %xmm0, %eax
234
235 ALIGN (4)
236L(aligned_16):
237 cmp $128, %ecx
238 jae L(128bytesormore)
239
240L(aligned_16_less128bytes):
241 BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes))
242
243 ALIGN (4)
244L(128bytesormore):
245 PUSH (%edi)
246#ifdef DATA_CACHE_SIZE
247 PUSH (%ebx)
248 mov $DATA_CACHE_SIZE, %ebx
249#else
250# ifdef PIC
251 SETUP_PIC_REG(bx)
252 add $_GLOBAL_OFFSET_TABLE_, %ebx
253 mov __x86_data_cache_size@GOTOFF(%ebx), %ebx
254# else
255 PUSH (%ebx)
256 mov __x86_data_cache_size, %ebx
257# endif
258#endif
259 mov %ebx, %edi
260 shr $4, %ebx
261 sub %ebx, %edi
262#if defined DATA_CACHE_SIZE || !defined PIC
263 POP (%ebx)
264#endif
265/*
266 * When data size approximate the end of L1 cache,
267 * fast string will prefetch and combine data efficiently.
268 */
269 cmp %edi, %ecx
270 jae L(128bytesormore_endof_L1)
271 subl $128, %ecx
272L(128bytesormore_normal):
273 sub $128, %ecx
274 movdqa %xmm0, (%edx)
275 movdqa %xmm0, 0x10(%edx)
276 movdqa %xmm0, 0x20(%edx)
277 movdqa %xmm0, 0x30(%edx)
278 movdqa %xmm0, 0x40(%edx)
279 movdqa %xmm0, 0x50(%edx)
280 movdqa %xmm0, 0x60(%edx)
281 movdqa %xmm0, 0x70(%edx)
282 lea 128(%edx), %edx
283 jb L(128bytesless_normal)
284
285
286 sub $128, %ecx
287 movdqa %xmm0, (%edx)
288 movdqa %xmm0, 0x10(%edx)
289 movdqa %xmm0, 0x20(%edx)
290 movdqa %xmm0, 0x30(%edx)
291 movdqa %xmm0, 0x40(%edx)
292 movdqa %xmm0, 0x50(%edx)
293 movdqa %xmm0, 0x60(%edx)
294 movdqa %xmm0, 0x70(%edx)
295 lea 128(%edx), %edx
296 jae L(128bytesormore_normal)
297
298L(128bytesless_normal):
299 POP (%edi)
300 add $128, %ecx
301 BRANCH_TO_JMPTBL_ENTRY (L(table_16_128bytes))
302
303 CFI_PUSH (%edi)
304 ALIGN (4)
305L(128bytesormore_endof_L1):
306 mov %edx, %edi
307 mov %ecx, %edx
308 shr $2, %ecx
309 and $3, %edx
310 rep stosl
311 jz L(copy_page_by_rep_exit)
312 cmp $2, %edx
313 jb L(copy_page_by_rep_left_1)
314 movw %ax, (%edi)
315 add $2, %edi
316 sub $2, %edx
317 jz L(copy_page_by_rep_exit)
318L(copy_page_by_rep_left_1):
319 movb %al, (%edi)
320L(copy_page_by_rep_exit):
321 POP (%edi)
322 SETRTNVAL
323 RETURN
324
325 .pushsection .rodata.sse2,"a",@progbits
326 ALIGN (2)
327L(table_16_128bytes):
328 .int JMPTBL (L(aligned_16_0bytes), L(table_16_128bytes))
329 .int JMPTBL (L(aligned_16_1bytes), L(table_16_128bytes))
330 .int JMPTBL (L(aligned_16_2bytes), L(table_16_128bytes))
331 .int JMPTBL (L(aligned_16_3bytes), L(table_16_128bytes))
332 .int JMPTBL (L(aligned_16_4bytes), L(table_16_128bytes))
333 .int JMPTBL (L(aligned_16_5bytes), L(table_16_128bytes))
334 .int JMPTBL (L(aligned_16_6bytes), L(table_16_128bytes))
335 .int JMPTBL (L(aligned_16_7bytes), L(table_16_128bytes))
336 .int JMPTBL (L(aligned_16_8bytes), L(table_16_128bytes))
337 .int JMPTBL (L(aligned_16_9bytes), L(table_16_128bytes))
338 .int JMPTBL (L(aligned_16_10bytes), L(table_16_128bytes))
339 .int JMPTBL (L(aligned_16_11bytes), L(table_16_128bytes))
340 .int JMPTBL (L(aligned_16_12bytes), L(table_16_128bytes))
341 .int JMPTBL (L(aligned_16_13bytes), L(table_16_128bytes))
342 .int JMPTBL (L(aligned_16_14bytes), L(table_16_128bytes))
343 .int JMPTBL (L(aligned_16_15bytes), L(table_16_128bytes))
344 .int JMPTBL (L(aligned_16_16bytes), L(table_16_128bytes))
345 .int JMPTBL (L(aligned_16_17bytes), L(table_16_128bytes))
346 .int JMPTBL (L(aligned_16_18bytes), L(table_16_128bytes))
347 .int JMPTBL (L(aligned_16_19bytes), L(table_16_128bytes))
348 .int JMPTBL (L(aligned_16_20bytes), L(table_16_128bytes))
349 .int JMPTBL (L(aligned_16_21bytes), L(table_16_128bytes))
350 .int JMPTBL (L(aligned_16_22bytes), L(table_16_128bytes))
351 .int JMPTBL (L(aligned_16_23bytes), L(table_16_128bytes))
352 .int JMPTBL (L(aligned_16_24bytes), L(table_16_128bytes))
353 .int JMPTBL (L(aligned_16_25bytes), L(table_16_128bytes))
354 .int JMPTBL (L(aligned_16_26bytes), L(table_16_128bytes))
355 .int JMPTBL (L(aligned_16_27bytes), L(table_16_128bytes))
356 .int JMPTBL (L(aligned_16_28bytes), L(table_16_128bytes))
357 .int JMPTBL (L(aligned_16_29bytes), L(table_16_128bytes))
358 .int JMPTBL (L(aligned_16_30bytes), L(table_16_128bytes))
359 .int JMPTBL (L(aligned_16_31bytes), L(table_16_128bytes))
360 .int JMPTBL (L(aligned_16_32bytes), L(table_16_128bytes))
361 .int JMPTBL (L(aligned_16_33bytes), L(table_16_128bytes))
362 .int JMPTBL (L(aligned_16_34bytes), L(table_16_128bytes))
363 .int JMPTBL (L(aligned_16_35bytes), L(table_16_128bytes))
364 .int JMPTBL (L(aligned_16_36bytes), L(table_16_128bytes))
365 .int JMPTBL (L(aligned_16_37bytes), L(table_16_128bytes))
366 .int JMPTBL (L(aligned_16_38bytes), L(table_16_128bytes))
367 .int JMPTBL (L(aligned_16_39bytes), L(table_16_128bytes))
368 .int JMPTBL (L(aligned_16_40bytes), L(table_16_128bytes))
369 .int JMPTBL (L(aligned_16_41bytes), L(table_16_128bytes))
370 .int JMPTBL (L(aligned_16_42bytes), L(table_16_128bytes))
371 .int JMPTBL (L(aligned_16_43bytes), L(table_16_128bytes))
372 .int JMPTBL (L(aligned_16_44bytes), L(table_16_128bytes))
373 .int JMPTBL (L(aligned_16_45bytes), L(table_16_128bytes))
374 .int JMPTBL (L(aligned_16_46bytes), L(table_16_128bytes))
375 .int JMPTBL (L(aligned_16_47bytes), L(table_16_128bytes))
376 .int JMPTBL (L(aligned_16_48bytes), L(table_16_128bytes))
377 .int JMPTBL (L(aligned_16_49bytes), L(table_16_128bytes))
378 .int JMPTBL (L(aligned_16_50bytes), L(table_16_128bytes))
379 .int JMPTBL (L(aligned_16_51bytes), L(table_16_128bytes))
380 .int JMPTBL (L(aligned_16_52bytes), L(table_16_128bytes))
381 .int JMPTBL (L(aligned_16_53bytes), L(table_16_128bytes))
382 .int JMPTBL (L(aligned_16_54bytes), L(table_16_128bytes))
383 .int JMPTBL (L(aligned_16_55bytes), L(table_16_128bytes))
384 .int JMPTBL (L(aligned_16_56bytes), L(table_16_128bytes))
385 .int JMPTBL (L(aligned_16_57bytes), L(table_16_128bytes))
386 .int JMPTBL (L(aligned_16_58bytes), L(table_16_128bytes))
387 .int JMPTBL (L(aligned_16_59bytes), L(table_16_128bytes))
388 .int JMPTBL (L(aligned_16_60bytes), L(table_16_128bytes))
389 .int JMPTBL (L(aligned_16_61bytes), L(table_16_128bytes))
390 .int JMPTBL (L(aligned_16_62bytes), L(table_16_128bytes))
391 .int JMPTBL (L(aligned_16_63bytes), L(table_16_128bytes))
392 .int JMPTBL (L(aligned_16_64bytes), L(table_16_128bytes))
393 .int JMPTBL (L(aligned_16_65bytes), L(table_16_128bytes))
394 .int JMPTBL (L(aligned_16_66bytes), L(table_16_128bytes))
395 .int JMPTBL (L(aligned_16_67bytes), L(table_16_128bytes))
396 .int JMPTBL (L(aligned_16_68bytes), L(table_16_128bytes))
397 .int JMPTBL (L(aligned_16_69bytes), L(table_16_128bytes))
398 .int JMPTBL (L(aligned_16_70bytes), L(table_16_128bytes))
399 .int JMPTBL (L(aligned_16_71bytes), L(table_16_128bytes))
400 .int JMPTBL (L(aligned_16_72bytes), L(table_16_128bytes))
401 .int JMPTBL (L(aligned_16_73bytes), L(table_16_128bytes))
402 .int JMPTBL (L(aligned_16_74bytes), L(table_16_128bytes))
403 .int JMPTBL (L(aligned_16_75bytes), L(table_16_128bytes))
404 .int JMPTBL (L(aligned_16_76bytes), L(table_16_128bytes))
405 .int JMPTBL (L(aligned_16_77bytes), L(table_16_128bytes))
406 .int JMPTBL (L(aligned_16_78bytes), L(table_16_128bytes))
407 .int JMPTBL (L(aligned_16_79bytes), L(table_16_128bytes))
408 .int JMPTBL (L(aligned_16_80bytes), L(table_16_128bytes))
409 .int JMPTBL (L(aligned_16_81bytes), L(table_16_128bytes))
410 .int JMPTBL (L(aligned_16_82bytes), L(table_16_128bytes))
411 .int JMPTBL (L(aligned_16_83bytes), L(table_16_128bytes))
412 .int JMPTBL (L(aligned_16_84bytes), L(table_16_128bytes))
413 .int JMPTBL (L(aligned_16_85bytes), L(table_16_128bytes))
414 .int JMPTBL (L(aligned_16_86bytes), L(table_16_128bytes))
415 .int JMPTBL (L(aligned_16_87bytes), L(table_16_128bytes))
416 .int JMPTBL (L(aligned_16_88bytes), L(table_16_128bytes))
417 .int JMPTBL (L(aligned_16_89bytes), L(table_16_128bytes))
418 .int JMPTBL (L(aligned_16_90bytes), L(table_16_128bytes))
419 .int JMPTBL (L(aligned_16_91bytes), L(table_16_128bytes))
420 .int JMPTBL (L(aligned_16_92bytes), L(table_16_128bytes))
421 .int JMPTBL (L(aligned_16_93bytes), L(table_16_128bytes))
422 .int JMPTBL (L(aligned_16_94bytes), L(table_16_128bytes))
423 .int JMPTBL (L(aligned_16_95bytes), L(table_16_128bytes))
424 .int JMPTBL (L(aligned_16_96bytes), L(table_16_128bytes))
425 .int JMPTBL (L(aligned_16_97bytes), L(table_16_128bytes))
426 .int JMPTBL (L(aligned_16_98bytes), L(table_16_128bytes))
427 .int JMPTBL (L(aligned_16_99bytes), L(table_16_128bytes))
428 .int JMPTBL (L(aligned_16_100bytes), L(table_16_128bytes))
429 .int JMPTBL (L(aligned_16_101bytes), L(table_16_128bytes))
430 .int JMPTBL (L(aligned_16_102bytes), L(table_16_128bytes))
431 .int JMPTBL (L(aligned_16_103bytes), L(table_16_128bytes))
432 .int JMPTBL (L(aligned_16_104bytes), L(table_16_128bytes))
433 .int JMPTBL (L(aligned_16_105bytes), L(table_16_128bytes))
434 .int JMPTBL (L(aligned_16_106bytes), L(table_16_128bytes))
435 .int JMPTBL (L(aligned_16_107bytes), L(table_16_128bytes))
436 .int JMPTBL (L(aligned_16_108bytes), L(table_16_128bytes))
437 .int JMPTBL (L(aligned_16_109bytes), L(table_16_128bytes))
438 .int JMPTBL (L(aligned_16_110bytes), L(table_16_128bytes))
439 .int JMPTBL (L(aligned_16_111bytes), L(table_16_128bytes))
440 .int JMPTBL (L(aligned_16_112bytes), L(table_16_128bytes))
441 .int JMPTBL (L(aligned_16_113bytes), L(table_16_128bytes))
442 .int JMPTBL (L(aligned_16_114bytes), L(table_16_128bytes))
443 .int JMPTBL (L(aligned_16_115bytes), L(table_16_128bytes))
444 .int JMPTBL (L(aligned_16_116bytes), L(table_16_128bytes))
445 .int JMPTBL (L(aligned_16_117bytes), L(table_16_128bytes))
446 .int JMPTBL (L(aligned_16_118bytes), L(table_16_128bytes))
447 .int JMPTBL (L(aligned_16_119bytes), L(table_16_128bytes))
448 .int JMPTBL (L(aligned_16_120bytes), L(table_16_128bytes))
449 .int JMPTBL (L(aligned_16_121bytes), L(table_16_128bytes))
450 .int JMPTBL (L(aligned_16_122bytes), L(table_16_128bytes))
451 .int JMPTBL (L(aligned_16_123bytes), L(table_16_128bytes))
452 .int JMPTBL (L(aligned_16_124bytes), L(table_16_128bytes))
453 .int JMPTBL (L(aligned_16_125bytes), L(table_16_128bytes))
454 .int JMPTBL (L(aligned_16_126bytes), L(table_16_128bytes))
455 .int JMPTBL (L(aligned_16_127bytes), L(table_16_128bytes))
456 .popsection
457
458 ALIGN (4)
459L(aligned_16_112bytes):
460 movdqa %xmm0, -112(%edx)
461L(aligned_16_96bytes):
462 movdqa %xmm0, -96(%edx)
463L(aligned_16_80bytes):
464 movdqa %xmm0, -80(%edx)
465L(aligned_16_64bytes):
466 movdqa %xmm0, -64(%edx)
467L(aligned_16_48bytes):
468 movdqa %xmm0, -48(%edx)
469L(aligned_16_32bytes):
470 movdqa %xmm0, -32(%edx)
471L(aligned_16_16bytes):
472 movdqa %xmm0, -16(%edx)
473L(aligned_16_0bytes):
474 SETRTNVAL
475 RETURN
476
477 ALIGN (4)
478L(aligned_16_113bytes):
479 movdqa %xmm0, -113(%edx)
480L(aligned_16_97bytes):
481 movdqa %xmm0, -97(%edx)
482L(aligned_16_81bytes):
483 movdqa %xmm0, -81(%edx)
484L(aligned_16_65bytes):
485 movdqa %xmm0, -65(%edx)
486L(aligned_16_49bytes):
487 movdqa %xmm0, -49(%edx)
488L(aligned_16_33bytes):
489 movdqa %xmm0, -33(%edx)
490L(aligned_16_17bytes):
491 movdqa %xmm0, -17(%edx)
492L(aligned_16_1bytes):
493 movb %al, -1(%edx)
494 SETRTNVAL
495 RETURN
496
497 ALIGN (4)
498L(aligned_16_114bytes):
499 movdqa %xmm0, -114(%edx)
500L(aligned_16_98bytes):
501 movdqa %xmm0, -98(%edx)
502L(aligned_16_82bytes):
503 movdqa %xmm0, -82(%edx)
504L(aligned_16_66bytes):
505 movdqa %xmm0, -66(%edx)
506L(aligned_16_50bytes):
507 movdqa %xmm0, -50(%edx)
508L(aligned_16_34bytes):
509 movdqa %xmm0, -34(%edx)
510L(aligned_16_18bytes):
511 movdqa %xmm0, -18(%edx)
512L(aligned_16_2bytes):
513 movw %ax, -2(%edx)
514 SETRTNVAL
515 RETURN
516
517 ALIGN (4)
518L(aligned_16_115bytes):
519 movdqa %xmm0, -115(%edx)
520L(aligned_16_99bytes):
521 movdqa %xmm0, -99(%edx)
522L(aligned_16_83bytes):
523 movdqa %xmm0, -83(%edx)
524L(aligned_16_67bytes):
525 movdqa %xmm0, -67(%edx)
526L(aligned_16_51bytes):
527 movdqa %xmm0, -51(%edx)
528L(aligned_16_35bytes):
529 movdqa %xmm0, -35(%edx)
530L(aligned_16_19bytes):
531 movdqa %xmm0, -19(%edx)
532L(aligned_16_3bytes):
533 movw %ax, -3(%edx)
534 movb %al, -1(%edx)
535 SETRTNVAL
536 RETURN
537
538 ALIGN (4)
539L(aligned_16_116bytes):
540 movdqa %xmm0, -116(%edx)
541L(aligned_16_100bytes):
542 movdqa %xmm0, -100(%edx)
543L(aligned_16_84bytes):
544 movdqa %xmm0, -84(%edx)
545L(aligned_16_68bytes):
546 movdqa %xmm0, -68(%edx)
547L(aligned_16_52bytes):
548 movdqa %xmm0, -52(%edx)
549L(aligned_16_36bytes):
550 movdqa %xmm0, -36(%edx)
551L(aligned_16_20bytes):
552 movdqa %xmm0, -20(%edx)
553L(aligned_16_4bytes):
554 movl %eax, -4(%edx)
555 SETRTNVAL
556 RETURN
557
558 ALIGN (4)
559L(aligned_16_117bytes):
560 movdqa %xmm0, -117(%edx)
561L(aligned_16_101bytes):
562 movdqa %xmm0, -101(%edx)
563L(aligned_16_85bytes):
564 movdqa %xmm0, -85(%edx)
565L(aligned_16_69bytes):
566 movdqa %xmm0, -69(%edx)
567L(aligned_16_53bytes):
568 movdqa %xmm0, -53(%edx)
569L(aligned_16_37bytes):
570 movdqa %xmm0, -37(%edx)
571L(aligned_16_21bytes):
572 movdqa %xmm0, -21(%edx)
573L(aligned_16_5bytes):
574 movl %eax, -5(%edx)
575 movb %al, -1(%edx)
576 SETRTNVAL
577 RETURN
578
579 ALIGN (4)
580L(aligned_16_118bytes):
581 movdqa %xmm0, -118(%edx)
582L(aligned_16_102bytes):
583 movdqa %xmm0, -102(%edx)
584L(aligned_16_86bytes):
585 movdqa %xmm0, -86(%edx)
586L(aligned_16_70bytes):
587 movdqa %xmm0, -70(%edx)
588L(aligned_16_54bytes):
589 movdqa %xmm0, -54(%edx)
590L(aligned_16_38bytes):
591 movdqa %xmm0, -38(%edx)
592L(aligned_16_22bytes):
593 movdqa %xmm0, -22(%edx)
594L(aligned_16_6bytes):
595 movl %eax, -6(%edx)
596 movw %ax, -2(%edx)
597 SETRTNVAL
598 RETURN
599
600 ALIGN (4)
601L(aligned_16_119bytes):
602 movdqa %xmm0, -119(%edx)
603L(aligned_16_103bytes):
604 movdqa %xmm0, -103(%edx)
605L(aligned_16_87bytes):
606 movdqa %xmm0, -87(%edx)
607L(aligned_16_71bytes):
608 movdqa %xmm0, -71(%edx)
609L(aligned_16_55bytes):
610 movdqa %xmm0, -55(%edx)
611L(aligned_16_39bytes):
612 movdqa %xmm0, -39(%edx)
613L(aligned_16_23bytes):
614 movdqa %xmm0, -23(%edx)
615L(aligned_16_7bytes):
616 movl %eax, -7(%edx)
617 movw %ax, -3(%edx)
618 movb %al, -1(%edx)
619 SETRTNVAL
620 RETURN
621
622 ALIGN (4)
623L(aligned_16_120bytes):
624 movdqa %xmm0, -120(%edx)
625L(aligned_16_104bytes):
626 movdqa %xmm0, -104(%edx)
627L(aligned_16_88bytes):
628 movdqa %xmm0, -88(%edx)
629L(aligned_16_72bytes):
630 movdqa %xmm0, -72(%edx)
631L(aligned_16_56bytes):
632 movdqa %xmm0, -56(%edx)
633L(aligned_16_40bytes):
634 movdqa %xmm0, -40(%edx)
635L(aligned_16_24bytes):
636 movdqa %xmm0, -24(%edx)
637L(aligned_16_8bytes):
638 movq %xmm0, -8(%edx)
639 SETRTNVAL
640 RETURN
641
642 ALIGN (4)
643L(aligned_16_121bytes):
644 movdqa %xmm0, -121(%edx)
645L(aligned_16_105bytes):
646 movdqa %xmm0, -105(%edx)
647L(aligned_16_89bytes):
648 movdqa %xmm0, -89(%edx)
649L(aligned_16_73bytes):
650 movdqa %xmm0, -73(%edx)
651L(aligned_16_57bytes):
652 movdqa %xmm0, -57(%edx)
653L(aligned_16_41bytes):
654 movdqa %xmm0, -41(%edx)
655L(aligned_16_25bytes):
656 movdqa %xmm0, -25(%edx)
657L(aligned_16_9bytes):
658 movq %xmm0, -9(%edx)
659 movb %al, -1(%edx)
660 SETRTNVAL
661 RETURN
662
663 ALIGN (4)
664L(aligned_16_122bytes):
665 movdqa %xmm0, -122(%edx)
666L(aligned_16_106bytes):
667 movdqa %xmm0, -106(%edx)
668L(aligned_16_90bytes):
669 movdqa %xmm0, -90(%edx)
670L(aligned_16_74bytes):
671 movdqa %xmm0, -74(%edx)
672L(aligned_16_58bytes):
673 movdqa %xmm0, -58(%edx)
674L(aligned_16_42bytes):
675 movdqa %xmm0, -42(%edx)
676L(aligned_16_26bytes):
677 movdqa %xmm0, -26(%edx)
678L(aligned_16_10bytes):
679 movq %xmm0, -10(%edx)
680 movw %ax, -2(%edx)
681 SETRTNVAL
682 RETURN
683
684 ALIGN (4)
685L(aligned_16_123bytes):
686 movdqa %xmm0, -123(%edx)
687L(aligned_16_107bytes):
688 movdqa %xmm0, -107(%edx)
689L(aligned_16_91bytes):
690 movdqa %xmm0, -91(%edx)
691L(aligned_16_75bytes):
692 movdqa %xmm0, -75(%edx)
693L(aligned_16_59bytes):
694 movdqa %xmm0, -59(%edx)
695L(aligned_16_43bytes):
696 movdqa %xmm0, -43(%edx)
697L(aligned_16_27bytes):
698 movdqa %xmm0, -27(%edx)
699L(aligned_16_11bytes):
700 movq %xmm0, -11(%edx)
701 movw %ax, -3(%edx)
702 movb %al, -1(%edx)
703 SETRTNVAL
704 RETURN
705
706 ALIGN (4)
707L(aligned_16_124bytes):
708 movdqa %xmm0, -124(%edx)
709L(aligned_16_108bytes):
710 movdqa %xmm0, -108(%edx)
711L(aligned_16_92bytes):
712 movdqa %xmm0, -92(%edx)
713L(aligned_16_76bytes):
714 movdqa %xmm0, -76(%edx)
715L(aligned_16_60bytes):
716 movdqa %xmm0, -60(%edx)
717L(aligned_16_44bytes):
718 movdqa %xmm0, -44(%edx)
719L(aligned_16_28bytes):
720 movdqa %xmm0, -28(%edx)
721L(aligned_16_12bytes):
722 movq %xmm0, -12(%edx)
723 movl %eax, -4(%edx)
724 SETRTNVAL
725 RETURN
726
727 ALIGN (4)
728L(aligned_16_125bytes):
729 movdqa %xmm0, -125(%edx)
730L(aligned_16_109bytes):
731 movdqa %xmm0, -109(%edx)
732L(aligned_16_93bytes):
733 movdqa %xmm0, -93(%edx)
734L(aligned_16_77bytes):
735 movdqa %xmm0, -77(%edx)
736L(aligned_16_61bytes):
737 movdqa %xmm0, -61(%edx)
738L(aligned_16_45bytes):
739 movdqa %xmm0, -45(%edx)
740L(aligned_16_29bytes):
741 movdqa %xmm0, -29(%edx)
742L(aligned_16_13bytes):
743 movq %xmm0, -13(%edx)
744 movl %eax, -5(%edx)
745 movb %al, -1(%edx)
746 SETRTNVAL
747 RETURN
748
749 ALIGN (4)
750L(aligned_16_126bytes):
751 movdqa %xmm0, -126(%edx)
752L(aligned_16_110bytes):
753 movdqa %xmm0, -110(%edx)
754L(aligned_16_94bytes):
755 movdqa %xmm0, -94(%edx)
756L(aligned_16_78bytes):
757 movdqa %xmm0, -78(%edx)
758L(aligned_16_62bytes):
759 movdqa %xmm0, -62(%edx)
760L(aligned_16_46bytes):
761 movdqa %xmm0, -46(%edx)
762L(aligned_16_30bytes):
763 movdqa %xmm0, -30(%edx)
764L(aligned_16_14bytes):
765 movq %xmm0, -14(%edx)
766 movl %eax, -6(%edx)
767 movw %ax, -2(%edx)
768 SETRTNVAL
769 RETURN
770
771 ALIGN (4)
772L(aligned_16_127bytes):
773 movdqa %xmm0, -127(%edx)
774L(aligned_16_111bytes):
775 movdqa %xmm0, -111(%edx)
776L(aligned_16_95bytes):
777 movdqa %xmm0, -95(%edx)
778L(aligned_16_79bytes):
779 movdqa %xmm0, -79(%edx)
780L(aligned_16_63bytes):
781 movdqa %xmm0, -63(%edx)
782L(aligned_16_47bytes):
783 movdqa %xmm0, -47(%edx)
784L(aligned_16_31bytes):
785 movdqa %xmm0, -31(%edx)
786L(aligned_16_15bytes):
787 movq %xmm0, -15(%edx)
788 movl %eax, -7(%edx)
789 movw %ax, -3(%edx)
790 movb %al, -1(%edx)
791 SETRTNVAL
792 RETURN_END
793
794END (__memset_sse2_rep)
795
796#endif
797

source code of glibc/sysdeps/i386/i686/multiarch/memset-sse2-rep.S