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
|
/* functable.c -- Choose relevant optimized functions at runtime
* Copyright (C) 2017 Hans Kristian Rosbach
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#include "zbuild.h"
#include "zendian.h"
#include "crc32_braid_p.h"
#include "deflate.h"
#include "deflate_p.h"
#include "functable.h"
#include "cpu_features.h"
Z_INTERNAL Z_TLS struct functable_s functable;
/* stub functions */
Z_INTERNAL uint32_t update_hash_stub(deflate_state *const s, uint32_t h, uint32_t val) {
// Initialize default
functable.update_hash = &update_hash_c;
cpu_check_features();
#ifdef X86_SSE42_CRC_HASH
if (x86_cpu_has_sse42)
functable.update_hash = &update_hash_sse4;
#elif defined(ARM_ACLE_CRC_HASH)
if (arm_cpu_has_crc32)
functable.update_hash = &update_hash_acle;
#endif
return functable.update_hash(s, h, val);
}
Z_INTERNAL void insert_string_stub(deflate_state *const s, uint32_t str, uint32_t count) {
// Initialize default
functable.insert_string = &insert_string_c;
cpu_check_features();
#ifdef X86_SSE42_CRC_HASH
if (x86_cpu_has_sse42)
functable.insert_string = &insert_string_sse4;
#elif defined(ARM_ACLE_CRC_HASH)
if (arm_cpu_has_crc32)
functable.insert_string = &insert_string_acle;
#endif
functable.insert_string(s, str, count);
}
Z_INTERNAL Pos quick_insert_string_stub(deflate_state *const s, const uint32_t str) {
functable.quick_insert_string = &quick_insert_string_c;
#ifdef X86_SSE42_CRC_HASH
if (x86_cpu_has_sse42)
functable.quick_insert_string = &quick_insert_string_sse4;
#elif defined(ARM_ACLE_CRC_HASH)
if (arm_cpu_has_crc32)
functable.quick_insert_string = &quick_insert_string_acle;
#endif
return functable.quick_insert_string(s, str);
}
Z_INTERNAL void slide_hash_stub(deflate_state *s) {
functable.slide_hash = &slide_hash_c;
cpu_check_features();
#ifdef X86_SSE2
# if !defined(__x86_64__) && !defined(_M_X64) && !defined(X86_NOCHECK_SSE2)
if (x86_cpu_has_sse2)
# endif
functable.slide_hash = &slide_hash_sse2;
#elif defined(ARM_NEON_SLIDEHASH)
# ifndef ARM_NOCHECK_NEON
if (arm_cpu_has_neon)
# endif
functable.slide_hash = &slide_hash_neon;
#endif
#ifdef X86_AVX2
if (x86_cpu_has_avx2)
functable.slide_hash = &slide_hash_avx2;
#endif
#ifdef PPC_VMX_SLIDEHASH
if (power_cpu_has_altivec)
functable.slide_hash = &slide_hash_vmx;
#endif
#ifdef POWER8_VSX_SLIDEHASH
if (power_cpu_has_arch_2_07)
functable.slide_hash = &slide_hash_power8;
#endif
functable.slide_hash(s);
}
Z_INTERNAL uint32_t longest_match_stub(deflate_state *const s, Pos cur_match) {
#ifdef UNALIGNED_OK
# if defined(UNALIGNED64_OK) && defined(HAVE_BUILTIN_CTZLL)
functable.longest_match = &longest_match_unaligned_64;
# elif defined(HAVE_BUILTIN_CTZ)
functable.longest_match = &longest_match_unaligned_32;
# else
functable.longest_match = &longest_match_unaligned_16;
# endif
#else
functable.longest_match = &longest_match_c;
#endif
#if defined(X86_SSE2) && defined(HAVE_BUILTIN_CTZ)
if (x86_cpu_has_sse2)
functable.longest_match = &longest_match_sse2;
#endif
#if defined(X86_AVX2) && defined(HAVE_BUILTIN_CTZ)
if (x86_cpu_has_avx2)
functable.longest_match = &longest_match_avx2;
#endif
#if defined(ARM_NEON) && defined(HAVE_BUILTIN_CTZLL)
if (arm_cpu_has_neon)
functable.longest_match = &longest_match_neon;
#endif
#ifdef POWER9
if (power_cpu_has_arch_3_00)
functable.longest_match = &longest_match_power9;
#endif
return functable.longest_match(s, cur_match);
}
Z_INTERNAL uint32_t longest_match_slow_stub(deflate_state *const s, Pos cur_match) {
#ifdef UNALIGNED_OK
# if defined(UNALIGNED64_OK) && defined(HAVE_BUILTIN_CTZLL)
functable.longest_match_slow = &longest_match_slow_unaligned_64;
# elif defined(HAVE_BUILTIN_CTZ)
functable.longest_match_slow = &longest_match_slow_unaligned_32;
# else
functable.longest_match_slow = &longest_match_slow_unaligned_16;
# endif
#else
functable.longest_match_slow = &longest_match_slow_c;
#endif
#if defined(X86_SSE2) && defined(HAVE_BUILTIN_CTZ)
if (x86_cpu_has_sse2)
functable.longest_match_slow = &longest_match_slow_sse2;
#endif
#if defined(X86_AVX2) && defined(HAVE_BUILTIN_CTZ)
if (x86_cpu_has_avx2)
functable.longest_match_slow = &longest_match_slow_avx2;
#endif
#if defined(ARM_NEON) && defined(HAVE_BUILTIN_CTZLL)
if (arm_cpu_has_neon)
functable.longest_match_slow = &longest_match_slow_neon;
#endif
#ifdef POWER9
if (power_cpu_has_arch_3_00)
functable.longest_match_slow = &longest_match_slow_power9;
#endif
return functable.longest_match_slow(s, cur_match);
}
Z_INTERNAL uint32_t adler32_stub(uint32_t adler, const unsigned char *buf, size_t len) {
// Initialize default
functable.adler32 = &adler32_c;
cpu_check_features();
#ifdef ARM_NEON_ADLER32
# ifndef ARM_NOCHECK_NEON
if (arm_cpu_has_neon)
# endif
functable.adler32 = &adler32_neon;
#endif
#ifdef X86_SSSE3_ADLER32
if (x86_cpu_has_ssse3)
functable.adler32 = &adler32_ssse3;
#endif
#ifdef X86_AVX2_ADLER32
if (x86_cpu_has_avx2)
functable.adler32 = &adler32_avx2;
#endif
#ifdef X86_AVX512_ADLER32
if (x86_cpu_has_avx512)
functable.adler32 = &adler32_avx512;
#endif
#ifdef X86_AVX512VNNI_ADLER32
if (x86_cpu_has_avx512vnni) {
functable.adler32 = &adler32_avx512_vnni;
}
#endif
#ifdef PPC_VMX_ADLER32
if (power_cpu_has_altivec)
functable.adler32 = &adler32_vmx;
#endif
#ifdef POWER8_VSX_ADLER32
if (power_cpu_has_arch_2_07)
functable.adler32 = &adler32_power8;
#endif
return functable.adler32(adler, buf, len);
}
Z_INTERNAL uint32_t adler32_fold_copy_stub(uint32_t adler, uint8_t *dst, const uint8_t *src, size_t len) {
functable.adler32_fold_copy = &adler32_fold_copy_c;
#if (defined X86_SSE42_ADLER32)
if (x86_cpu_has_sse42)
functable.adler32_fold_copy = &adler32_fold_copy_sse42;
#endif
#ifdef X86_AVX2_ADLER32
if (x86_cpu_has_avx2)
functable.adler32_fold_copy = &adler32_fold_copy_avx2;
#endif
#ifdef X86_AVX512_ADLER32
if (x86_cpu_has_avx512)
functable.adler32_fold_copy = &adler32_fold_copy_avx512;
#endif
#ifdef X86_AVX512VNNI_ADLER32
if (x86_cpu_has_avx512vnni)
functable.adler32_fold_copy = &adler32_fold_copy_avx512_vnni;
#endif
return functable.adler32_fold_copy(adler, dst, src, len);
}
Z_INTERNAL uint32_t crc32_fold_reset_stub(crc32_fold *crc) {
functable.crc32_fold_reset = &crc32_fold_reset_c;
cpu_check_features();
#ifdef X86_PCLMULQDQ_CRC
if (x86_cpu_has_pclmulqdq)
functable.crc32_fold_reset = &crc32_fold_reset_pclmulqdq;
#endif
return functable.crc32_fold_reset(crc);
}
Z_INTERNAL void crc32_fold_copy_stub(crc32_fold *crc, uint8_t *dst, const uint8_t *src, size_t len) {
functable.crc32_fold_copy = &crc32_fold_copy_c;
cpu_check_features();
#ifdef X86_PCLMULQDQ_CRC
if (x86_cpu_has_pclmulqdq)
functable.crc32_fold_copy = &crc32_fold_copy_pclmulqdq;
#endif
functable.crc32_fold_copy(crc, dst, src, len);
}
Z_INTERNAL void crc32_fold_stub(crc32_fold *crc, const uint8_t *src, size_t len, uint32_t init_crc) {
functable.crc32_fold = &crc32_fold_c;
cpu_check_features();
#ifdef X86_PCLMULQDQ_CRC
if (x86_cpu_has_pclmulqdq)
functable.crc32_fold = &crc32_fold_pclmulqdq;
#endif
functable.crc32_fold(crc, src, len, init_crc);
}
Z_INTERNAL uint32_t crc32_fold_final_stub(crc32_fold *crc) {
functable.crc32_fold_final = &crc32_fold_final_c;
cpu_check_features();
#ifdef X86_PCLMULQDQ_CRC
if (x86_cpu_has_pclmulqdq)
functable.crc32_fold_final = &crc32_fold_final_pclmulqdq;
#endif
return functable.crc32_fold_final(crc);
}
Z_INTERNAL uint32_t chunksize_stub(void) {
// Initialize default
functable.chunksize = &chunksize_c;
cpu_check_features();
#ifdef X86_SSE2_CHUNKSET
# if !defined(__x86_64__) && !defined(_M_X64) && !defined(X86_NOCHECK_SSE2)
if (x86_cpu_has_sse2)
# endif
functable.chunksize = &chunksize_sse2;
#endif
#ifdef X86_AVX_CHUNKSET
if (x86_cpu_has_avx2)
functable.chunksize = &chunksize_avx;
#endif
#ifdef ARM_NEON_CHUNKSET
if (arm_cpu_has_neon)
functable.chunksize = &chunksize_neon;
#endif
#ifdef POWER8_VSX_CHUNKSET
if (power_cpu_has_arch_2_07)
functable.chunksize = &chunksize_power8;
#endif
return functable.chunksize();
}
Z_INTERNAL uint8_t* chunkcopy_stub(uint8_t *out, uint8_t const *from, unsigned len) {
// Initialize default
functable.chunkcopy = &chunkcopy_c;
#ifdef X86_SSE2_CHUNKSET
# if !defined(__x86_64__) && !defined(_M_X64) && !defined(X86_NOCHECK_SSE2)
if (x86_cpu_has_sse2)
# endif
functable.chunkcopy = &chunkcopy_sse2;
#endif
#ifdef X86_AVX_CHUNKSET
if (x86_cpu_has_avx2)
functable.chunkcopy = &chunkcopy_avx;
#endif
#ifdef ARM_NEON_CHUNKSET
if (arm_cpu_has_neon)
functable.chunkcopy = &chunkcopy_neon;
#endif
#ifdef POWER8_VSX_CHUNKSET
if (power_cpu_has_arch_2_07)
functable.chunkcopy = &chunkcopy_power8;
#endif
return functable.chunkcopy(out, from, len);
}
Z_INTERNAL uint8_t* chunkunroll_stub(uint8_t *out, unsigned *dist, unsigned *len) {
// Initialize default
functable.chunkunroll = &chunkunroll_c;
#ifdef X86_SSE2_CHUNKSET
# if !defined(__x86_64__) && !defined(_M_X64) && !defined(X86_NOCHECK_SSE2)
if (x86_cpu_has_sse2)
# endif
functable.chunkunroll = &chunkunroll_sse2;
#endif
#ifdef X86_AVX_CHUNKSET
if (x86_cpu_has_avx2)
functable.chunkunroll = &chunkunroll_avx;
#endif
#ifdef ARM_NEON_CHUNKSET
if (arm_cpu_has_neon)
functable.chunkunroll = &chunkunroll_neon;
#endif
#ifdef POWER8_VSX_CHUNKSET
if (power_cpu_has_arch_2_07)
functable.chunkunroll = &chunkunroll_power8;
#endif
return functable.chunkunroll(out, dist, len);
}
Z_INTERNAL uint8_t* chunkmemset_stub(uint8_t *out, unsigned dist, unsigned len) {
// Initialize default
functable.chunkmemset = &chunkmemset_c;
#ifdef X86_SSE2_CHUNKSET
# if !defined(__x86_64__) && !defined(_M_X64) && !defined(X86_NOCHECK_SSE2)
if (x86_cpu_has_sse2)
# endif
functable.chunkmemset = &chunkmemset_sse2;
#endif
#if defined(X86_SSE41) && defined(X86_SSE2)
if (x86_cpu_has_sse41)
functable.chunkmemset = &chunkmemset_sse41;
#endif
#ifdef X86_AVX_CHUNKSET
if (x86_cpu_has_avx2)
functable.chunkmemset = &chunkmemset_avx;
#endif
#ifdef ARM_NEON_CHUNKSET
if (arm_cpu_has_neon)
functable.chunkmemset = &chunkmemset_neon;
#endif
#ifdef POWER8_VSX_CHUNKSET
if (power_cpu_has_arch_2_07)
functable.chunkmemset = &chunkmemset_power8;
#endif
return functable.chunkmemset(out, dist, len);
}
Z_INTERNAL uint8_t* chunkmemset_safe_stub(uint8_t *out, unsigned dist, unsigned len, unsigned left) {
// Initialize default
functable.chunkmemset_safe = &chunkmemset_safe_c;
#ifdef X86_SSE2_CHUNKSET
# if !defined(__x86_64__) && !defined(_M_X64) && !defined(X86_NOCHECK_SSE2)
if (x86_cpu_has_sse2)
# endif
functable.chunkmemset_safe = &chunkmemset_safe_sse2;
#endif
#if defined(X86_SSE41) && defined(X86_SSE2)
if (x86_cpu_has_sse41)
functable.chunkmemset_safe = &chunkmemset_safe_sse41;
#endif
#ifdef X86_AVX_CHUNKSET
if (x86_cpu_has_avx2)
functable.chunkmemset_safe = &chunkmemset_safe_avx;
#endif
#ifdef ARM_NEON_CHUNKSET
if (arm_cpu_has_neon)
functable.chunkmemset_safe = &chunkmemset_safe_neon;
#endif
#ifdef POWER8_VSX_CHUNKSET
if (power_cpu_has_arch_2_07)
functable.chunkmemset_safe = &chunkmemset_safe_power8;
#endif
return functable.chunkmemset_safe(out, dist, len, left);
}
Z_INTERNAL uint32_t crc32_stub(uint32_t crc, const unsigned char *buf, uint64_t len) {
Assert(sizeof(uint64_t) >= sizeof(size_t),
"crc32_z takes size_t but internally we have a uint64_t len");
functable.crc32 = &crc32_braid;
cpu_check_features();
#ifdef ARM_ACLE_CRC_HASH
if (arm_cpu_has_crc32)
functable.crc32 = &crc32_acle;
#elif defined(POWER8_VSX_CRC32)
if (power_cpu_has_arch_2_07)
functable.crc32 = &crc32_power8;
#elif defined(S390_CRC32_VX)
if (PREFIX(s390_cpu_has_vx))
functable.crc32 = &PREFIX(s390_crc32_vx);
#elif defined(X86_PCLMULQDQ_CRC)
if (x86_cpu_has_pclmulqdq)
functable.crc32 = &crc32_pclmulqdq;
#endif
return functable.crc32(crc, buf, len);
}
Z_INTERNAL uint32_t compare256_stub(const uint8_t *src0, const uint8_t *src1) {
#ifdef UNALIGNED_OK
# if defined(UNALIGNED64_OK) && defined(HAVE_BUILTIN_CTZLL)
functable.compare256 = &compare256_unaligned_64;
# elif defined(HAVE_BUILTIN_CTZ)
functable.compare256 = &compare256_unaligned_32;
# else
functable.compare256 = &compare256_unaligned_16;
# endif
#else
functable.compare256 = &compare256_c;
#endif
#if defined(X86_SSE2) && defined(HAVE_BUILTIN_CTZ)
if (x86_cpu_has_sse2)
functable.compare256 = &compare256_sse2;
#endif
#if defined(X86_AVX2) && defined(HAVE_BUILTIN_CTZ)
if (x86_cpu_has_avx2)
functable.compare256 = &compare256_avx2;
#endif
#ifdef POWER9
if (power_cpu_has_arch_3_00)
functable.compare256 = &compare256_power9;
#endif
return functable.compare256(src0, src1);
}
/* functable init */
Z_INTERNAL Z_TLS struct functable_s functable = {
adler32_stub,
adler32_fold_copy_stub,
crc32_stub,
crc32_fold_reset_stub,
crc32_fold_copy_stub,
crc32_fold_stub,
crc32_fold_final_stub,
compare256_stub,
chunksize_stub,
chunkcopy_stub,
chunkunroll_stub,
chunkmemset_stub,
chunkmemset_safe_stub,
insert_string_stub,
longest_match_stub,
longest_match_slow_stub,
quick_insert_string_stub,
slide_hash_stub,
update_hash_stub
};
|
