FFmpeg
checkasm.c
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1 /*
2  * Assembly testing and benchmarking tool
3  * Copyright (c) 2015 Henrik Gramner
4  * Copyright (c) 2008 Loren Merritt
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  */
22 
23 #include "config.h"
24 #include "config_components.h"
25 
26 #ifndef _GNU_SOURCE
27 # define _GNU_SOURCE // for syscall (performance monitoring API), strsignal()
28 #endif
29 
30 #include <signal.h>
31 #include <stdarg.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include "checkasm.h"
36 #include "libavutil/common.h"
37 #include "libavutil/cpu.h"
38 #include "libavutil/intfloat.h"
39 #include "libavutil/random_seed.h"
40 
41 #if HAVE_IO_H
42 #include <io.h>
43 #endif
44 
45 #if defined(_WIN32) && !defined(SIGBUS)
46 /* non-standard, use the same value as mingw-w64 */
47 #define SIGBUS 10
48 #endif
49 
50 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
51 #include <windows.h>
52 #define COLOR_RED FOREGROUND_RED
53 #define COLOR_GREEN FOREGROUND_GREEN
54 #define COLOR_YELLOW (FOREGROUND_RED|FOREGROUND_GREEN)
55 #else
56 #define COLOR_RED 1
57 #define COLOR_GREEN 2
58 #define COLOR_YELLOW 3
59 #endif
60 
61 #if HAVE_UNISTD_H
62 #include <unistd.h>
63 #endif
64 
65 #if !HAVE_ISATTY
66 #define isatty(fd) 1
67 #endif
68 
69 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
70 #include "libavutil/arm/cpu.h"
71 
72 void (*checkasm_checked_call)(void *func, int dummy, ...) = checkasm_checked_call_novfp;
73 #endif
74 
75 /* List of tests to invoke */
76 static const struct {
77  const char *name;
78  void (*func)(void);
79 } tests[] = {
80 #if CONFIG_AVCODEC
81  #if CONFIG_AAC_DECODER
82  { "aacpsdsp", checkasm_check_aacpsdsp },
83  { "sbrdsp", checkasm_check_sbrdsp },
84  #endif
85  #if CONFIG_AAC_ENCODER
86  { "aacencdsp", checkasm_check_aacencdsp },
87  #endif
88  #if CONFIG_AC3DSP
89  { "ac3dsp", checkasm_check_ac3dsp },
90  #endif
91  #if CONFIG_ALAC_DECODER
92  { "alacdsp", checkasm_check_alacdsp },
93  #endif
94  #if CONFIG_AUDIODSP
95  { "audiodsp", checkasm_check_audiodsp },
96  #endif
97  #if CONFIG_BLOCKDSP
98  { "blockdsp", checkasm_check_blockdsp },
99  #endif
100  #if CONFIG_BSWAPDSP
101  { "bswapdsp", checkasm_check_bswapdsp },
102  #endif
103  #if CONFIG_DCA_DECODER
104  { "synth_filter", checkasm_check_synth_filter },
105  #endif
106  #if CONFIG_EXR_DECODER
107  { "exrdsp", checkasm_check_exrdsp },
108  #endif
109  #if CONFIG_FLAC_DECODER
110  { "flacdsp", checkasm_check_flacdsp },
111  #endif
112  #if CONFIG_FMTCONVERT
113  { "fmtconvert", checkasm_check_fmtconvert },
114  #endif
115  #if CONFIG_G722DSP
116  { "g722dsp", checkasm_check_g722dsp },
117  #endif
118  #if CONFIG_H264CHROMA
119  { "h264chroma", checkasm_check_h264chroma },
120  #endif
121  #if CONFIG_H264DSP
122  { "h264dsp", checkasm_check_h264dsp },
123  #endif
124  #if CONFIG_H264PRED
125  { "h264pred", checkasm_check_h264pred },
126  #endif
127  #if CONFIG_H264QPEL
128  { "h264qpel", checkasm_check_h264qpel },
129  #endif
130  #if CONFIG_HEVC_DECODER
131  { "hevc_add_res", checkasm_check_hevc_add_res },
132  { "hevc_deblock", checkasm_check_hevc_deblock },
133  { "hevc_idct", checkasm_check_hevc_idct },
134  { "hevc_pel", checkasm_check_hevc_pel },
135  { "hevc_sao", checkasm_check_hevc_sao },
136  #endif
137  #if CONFIG_HUFFYUV_DECODER
138  { "huffyuvdsp", checkasm_check_huffyuvdsp },
139  #endif
140  #if CONFIG_IDCTDSP
141  { "idctdsp", checkasm_check_idctdsp },
142  #endif
143  #if CONFIG_JPEG2000_DECODER
144  { "jpeg2000dsp", checkasm_check_jpeg2000dsp },
145  #endif
146  #if CONFIG_LLAUDDSP
147  { "llauddsp", checkasm_check_llauddsp },
148  #endif
149  #if CONFIG_HUFFYUVDSP
150  { "llviddsp", checkasm_check_llviddsp },
151  #endif
152  #if CONFIG_LLVIDENCDSP
153  { "llviddspenc", checkasm_check_llviddspenc },
154  #endif
155  #if CONFIG_LPC
156  { "lpc", checkasm_check_lpc },
157  #endif
158  #if CONFIG_ME_CMP
159  { "motion", checkasm_check_motion },
160  #endif
161  #if CONFIG_OPUS_DECODER
162  { "opusdsp", checkasm_check_opusdsp },
163  #endif
164  #if CONFIG_PIXBLOCKDSP
165  { "pixblockdsp", checkasm_check_pixblockdsp },
166  #endif
167  #if CONFIG_RV34DSP
168  { "rv34dsp", checkasm_check_rv34dsp },
169  #endif
170  #if CONFIG_SVQ1_ENCODER
171  { "svq1enc", checkasm_check_svq1enc },
172  #endif
173  #if CONFIG_TAK_DECODER
174  { "takdsp", checkasm_check_takdsp },
175  #endif
176  #if CONFIG_UTVIDEO_DECODER
177  { "utvideodsp", checkasm_check_utvideodsp },
178  #endif
179  #if CONFIG_V210_DECODER
180  { "v210dec", checkasm_check_v210dec },
181  #endif
182  #if CONFIG_V210_ENCODER
183  { "v210enc", checkasm_check_v210enc },
184  #endif
185  #if CONFIG_VC1DSP
186  { "vc1dsp", checkasm_check_vc1dsp },
187  #endif
188  #if CONFIG_VP8DSP
189  { "vp8dsp", checkasm_check_vp8dsp },
190  #endif
191  #if CONFIG_VP9_DECODER
192  { "vp9dsp", checkasm_check_vp9dsp },
193  #endif
194  #if CONFIG_VIDEODSP
195  { "videodsp", checkasm_check_videodsp },
196  #endif
197  #if CONFIG_VORBIS_DECODER
198  { "vorbisdsp", checkasm_check_vorbisdsp },
199  #endif
200  #if CONFIG_VVC_DECODER
201  { "vvc_mc", checkasm_check_vvc_mc },
202  #endif
203 #endif
204 #if CONFIG_AVFILTER
205  #if CONFIG_AFIR_FILTER
206  { "af_afir", checkasm_check_afir },
207  #endif
208  #if CONFIG_BLEND_FILTER
209  { "vf_blend", checkasm_check_blend },
210  #endif
211  #if CONFIG_BWDIF_FILTER
212  { "vf_bwdif", checkasm_check_vf_bwdif },
213  #endif
214  #if CONFIG_COLORSPACE_FILTER
215  { "vf_colorspace", checkasm_check_colorspace },
216  #endif
217  #if CONFIG_EQ_FILTER
218  { "vf_eq", checkasm_check_vf_eq },
219  #endif
220  #if CONFIG_GBLUR_FILTER
221  { "vf_gblur", checkasm_check_vf_gblur },
222  #endif
223  #if CONFIG_HFLIP_FILTER
224  { "vf_hflip", checkasm_check_vf_hflip },
225  #endif
226  #if CONFIG_NLMEANS_FILTER
227  { "vf_nlmeans", checkasm_check_nlmeans },
228  #endif
229  #if CONFIG_THRESHOLD_FILTER
230  { "vf_threshold", checkasm_check_vf_threshold },
231  #endif
232  #if CONFIG_SOBEL_FILTER
233  { "vf_sobel", checkasm_check_vf_sobel },
234  #endif
235 #endif
236 #if CONFIG_SWSCALE
237  { "sw_gbrp", checkasm_check_sw_gbrp },
238  { "sw_rgb", checkasm_check_sw_rgb },
239  { "sw_scale", checkasm_check_sw_scale },
240 #endif
241 #if CONFIG_AVUTIL
242  { "fixed_dsp", checkasm_check_fixed_dsp },
243  { "float_dsp", checkasm_check_float_dsp },
244  { "av_tx", checkasm_check_av_tx },
245 #endif
246  { NULL }
247 };
248 
249 /* List of cpu flags to check */
250 static const struct {
251  const char *name;
252  const char *suffix;
253  int flag;
254 } cpus[] = {
255 #if ARCH_AARCH64
256  { "ARMV8", "armv8", AV_CPU_FLAG_ARMV8 },
257  { "NEON", "neon", AV_CPU_FLAG_NEON },
258  { "DOTPROD", "dotprod", AV_CPU_FLAG_DOTPROD },
259  { "I8MM", "i8mm", AV_CPU_FLAG_I8MM },
260 #elif ARCH_ARM
261  { "ARMV5TE", "armv5te", AV_CPU_FLAG_ARMV5TE },
262  { "ARMV6", "armv6", AV_CPU_FLAG_ARMV6 },
263  { "ARMV6T2", "armv6t2", AV_CPU_FLAG_ARMV6T2 },
264  { "VFP", "vfp", AV_CPU_FLAG_VFP },
265  { "VFP_VM", "vfp_vm", AV_CPU_FLAG_VFP_VM },
266  { "VFPV3", "vfp3", AV_CPU_FLAG_VFPV3 },
267  { "NEON", "neon", AV_CPU_FLAG_NEON },
268 #elif ARCH_PPC
269  { "ALTIVEC", "altivec", AV_CPU_FLAG_ALTIVEC },
270  { "VSX", "vsx", AV_CPU_FLAG_VSX },
271  { "POWER8", "power8", AV_CPU_FLAG_POWER8 },
272 #elif ARCH_RISCV
273  { "RVI", "rvi", AV_CPU_FLAG_RVI },
274  { "RVF", "rvf", AV_CPU_FLAG_RVF },
275  { "RVD", "rvd", AV_CPU_FLAG_RVD },
276  { "RVBaddr", "rvb_a", AV_CPU_FLAG_RVB_ADDR },
277  { "RVBbasic", "rvb_b", AV_CPU_FLAG_RVB_BASIC },
278  { "RVVi32", "rvv_i32", AV_CPU_FLAG_RVV_I32 },
279  { "RVVf32", "rvv_f32", AV_CPU_FLAG_RVV_F32 },
280  { "RVVi64", "rvv_i64", AV_CPU_FLAG_RVV_I64 },
281  { "RVVf64", "rvv_f64", AV_CPU_FLAG_RVV_F64 },
282 #elif ARCH_MIPS
283  { "MMI", "mmi", AV_CPU_FLAG_MMI },
284  { "MSA", "msa", AV_CPU_FLAG_MSA },
285 #elif ARCH_X86
286  { "MMX", "mmx", AV_CPU_FLAG_MMX|AV_CPU_FLAG_CMOV },
287  { "MMXEXT", "mmxext", AV_CPU_FLAG_MMXEXT },
288  { "3DNOW", "3dnow", AV_CPU_FLAG_3DNOW },
289  { "3DNOWEXT", "3dnowext", AV_CPU_FLAG_3DNOWEXT },
290  { "SSE", "sse", AV_CPU_FLAG_SSE },
291  { "SSE2", "sse2", AV_CPU_FLAG_SSE2|AV_CPU_FLAG_SSE2SLOW },
292  { "SSE3", "sse3", AV_CPU_FLAG_SSE3|AV_CPU_FLAG_SSE3SLOW },
293  { "SSSE3", "ssse3", AV_CPU_FLAG_SSSE3|AV_CPU_FLAG_ATOM },
294  { "SSE4.1", "sse4", AV_CPU_FLAG_SSE4 },
295  { "SSE4.2", "sse42", AV_CPU_FLAG_SSE42 },
296  { "AES-NI", "aesni", AV_CPU_FLAG_AESNI },
297  { "AVX", "avx", AV_CPU_FLAG_AVX },
298  { "XOP", "xop", AV_CPU_FLAG_XOP },
299  { "FMA3", "fma3", AV_CPU_FLAG_FMA3 },
300  { "FMA4", "fma4", AV_CPU_FLAG_FMA4 },
301  { "AVX2", "avx2", AV_CPU_FLAG_AVX2 },
302  { "AVX-512", "avx512", AV_CPU_FLAG_AVX512 },
303  { "AVX-512ICL", "avx512icl", AV_CPU_FLAG_AVX512ICL },
304 #elif ARCH_LOONGARCH
305  { "LSX", "lsx", AV_CPU_FLAG_LSX },
306  { "LASX", "lasx", AV_CPU_FLAG_LASX },
307 #endif
308  { NULL }
309 };
310 
311 typedef struct CheckasmFuncVersion {
313  void *func;
314  int ok;
315  int cpu;
318 
319 /* Binary search tree node */
320 typedef struct CheckasmFunc {
321  struct CheckasmFunc *child[2];
323  uint8_t color; /* 0 = red, 1 = black */
324  char name[1];
325 } CheckasmFunc;
326 
327 /* Internal state */
328 static struct {
332  const char *current_test_name;
333  const char *bench_pattern;
337 
338  /* perf */
339  int nop_time;
340  int sysfd;
341 
342  int cpu_flag;
343  const char *cpu_flag_name;
344  const char *test_name;
345  int verbose;
346  volatile sig_atomic_t catch_signals;
347 } state;
348 
349 /* PRNG state */
351 
352 /* float compare support code */
353 static int is_negative(union av_intfloat32 u)
354 {
355  return u.i >> 31;
356 }
357 
358 int float_near_ulp(float a, float b, unsigned max_ulp)
359 {
360  union av_intfloat32 x, y;
361 
362  x.f = a;
363  y.f = b;
364 
365  if (is_negative(x) != is_negative(y)) {
366  // handle -0.0 == +0.0
367  return a == b;
368  }
369 
370  if (llabs((int64_t)x.i - y.i) <= max_ulp)
371  return 1;
372 
373  return 0;
374 }
375 
376 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
377  unsigned len)
378 {
379  unsigned i;
380 
381  for (i = 0; i < len; i++) {
382  if (!float_near_ulp(a[i], b[i], max_ulp))
383  return 0;
384  }
385  return 1;
386 }
387 
388 int float_near_abs_eps(float a, float b, float eps)
389 {
390  float abs_diff = fabsf(a - b);
391  if (abs_diff < eps)
392  return 1;
393 
394  fprintf(stderr, "test failed comparing %g with %g (abs diff=%g with EPS=%g)\n", a, b, abs_diff, eps);
395 
396  return 0;
397 }
398 
399 int float_near_abs_eps_array(const float *a, const float *b, float eps,
400  unsigned len)
401 {
402  unsigned i;
403 
404  for (i = 0; i < len; i++) {
405  if (!float_near_abs_eps(a[i], b[i], eps))
406  return 0;
407  }
408  return 1;
409 }
410 
411 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp)
412 {
413  return float_near_ulp(a, b, max_ulp) || float_near_abs_eps(a, b, eps);
414 }
415 
416 int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
417  unsigned max_ulp, unsigned len)
418 {
419  unsigned i;
420 
421  for (i = 0; i < len; i++) {
422  if (!float_near_abs_eps_ulp(a[i], b[i], eps, max_ulp))
423  return 0;
424  }
425  return 1;
426 }
427 
428 int double_near_abs_eps(double a, double b, double eps)
429 {
430  double abs_diff = fabs(a - b);
431 
432  return abs_diff < eps;
433 }
434 
435 int double_near_abs_eps_array(const double *a, const double *b, double eps,
436  unsigned len)
437 {
438  unsigned i;
439 
440  for (i = 0; i < len; i++) {
441  if (!double_near_abs_eps(a[i], b[i], eps))
442  return 0;
443  }
444  return 1;
445 }
446 
447 /* Print colored text to stderr if the terminal supports it */
448 static void color_printf(int color, const char *fmt, ...)
449 {
450  static int use_color = -1;
451  va_list arg;
452 
453 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
454  static HANDLE con;
455  static WORD org_attributes;
456 
457  if (use_color < 0) {
458  CONSOLE_SCREEN_BUFFER_INFO con_info;
459  con = GetStdHandle(STD_ERROR_HANDLE);
460  if (con && con != INVALID_HANDLE_VALUE && GetConsoleScreenBufferInfo(con, &con_info)) {
461  org_attributes = con_info.wAttributes;
462  use_color = 1;
463  } else
464  use_color = 0;
465  }
466  if (use_color)
467  SetConsoleTextAttribute(con, (org_attributes & 0xfff0) | (color & 0x0f));
468 #else
469  if (use_color < 0) {
470  const char *term = getenv("TERM");
471  use_color = term && strcmp(term, "dumb") && isatty(2);
472  }
473  if (use_color)
474  fprintf(stderr, "\x1b[%d;3%dm", (color & 0x08) >> 3, color & 0x07);
475 #endif
476 
477  va_start(arg, fmt);
478  vfprintf(stderr, fmt, arg);
479  va_end(arg);
480 
481  if (use_color) {
482 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
483  SetConsoleTextAttribute(con, org_attributes);
484 #else
485  fprintf(stderr, "\x1b[0m");
486 #endif
487  }
488 }
489 
490 /* Deallocate a tree */
492 {
493  if (f) {
494  CheckasmFuncVersion *v = f->versions.next;
495  while (v) {
496  CheckasmFuncVersion *next = v->next;
497  free(v);
498  v = next;
499  }
500 
501  destroy_func_tree(f->child[0]);
502  destroy_func_tree(f->child[1]);
503  free(f);
504  }
505 }
506 
507 /* Allocate a zero-initialized block, clean up and exit on failure */
508 static void *checkasm_malloc(size_t size)
509 {
510  void *ptr = calloc(1, size);
511  if (!ptr) {
512  fprintf(stderr, "checkasm: malloc failed\n");
513  destroy_func_tree(state.funcs);
514  exit(1);
515  }
516  return ptr;
517 }
518 
519 /* Get the suffix of the specified cpu flag */
520 static const char *cpu_suffix(int cpu)
521 {
522  int i = FF_ARRAY_ELEMS(cpus);
523 
524  while (--i >= 0)
525  if (cpu & cpus[i].flag)
526  return cpus[i].suffix;
527 
528  return "c";
529 }
530 
531 static int cmp_nop(const void *a, const void *b)
532 {
533  return *(const uint16_t*)a - *(const uint16_t*)b;
534 }
535 
536 /* Measure the overhead of the timing code (in decicycles) */
537 static int measure_nop_time(void)
538 {
539  uint16_t nops[10000];
540  int i, nop_sum = 0;
541  av_unused const int sysfd = state.sysfd;
542 
543  uint64_t t = 0;
544  for (i = 0; i < 10000; i++) {
545  PERF_START(t);
546  PERF_STOP(t);
547  nops[i] = t;
548  }
549 
550  qsort(nops, 10000, sizeof(uint16_t), cmp_nop);
551  for (i = 2500; i < 7500; i++)
552  nop_sum += nops[i];
553 
554  return nop_sum / 500;
555 }
556 
557 /* Print benchmark results */
559 {
560  if (f) {
561  print_benchs(f->child[0]);
562 
563  /* Only print functions with at least one assembly version */
564  if (f->versions.cpu || f->versions.next) {
565  CheckasmFuncVersion *v = &f->versions;
566  do {
567  CheckasmPerf *p = &v->perf;
568  if (p->iterations) {
569  int decicycles = (10*p->cycles/p->iterations - state.nop_time) / 4;
570  printf("%s_%s: %d.%d\n", f->name, cpu_suffix(v->cpu), decicycles/10, decicycles%10);
571  }
572  } while ((v = v->next));
573  }
574 
575  print_benchs(f->child[1]);
576  }
577 }
578 
579 /* ASCIIbetical sort except preserving natural order for numbers */
580 static int cmp_func_names(const char *a, const char *b)
581 {
582  const char *start = a;
583  int ascii_diff, digit_diff;
584 
585  for (; !(ascii_diff = *(const unsigned char*)a - *(const unsigned char*)b) && *a; a++, b++);
586  for (; av_isdigit(*a) && av_isdigit(*b); a++, b++);
587 
588  if (a > start && av_isdigit(a[-1]) && (digit_diff = av_isdigit(*a) - av_isdigit(*b)))
589  return digit_diff;
590 
591  return ascii_diff;
592 }
593 
594 /* Perform a tree rotation in the specified direction and return the new root */
596 {
597  CheckasmFunc *r = f->child[dir^1];
598  f->child[dir^1] = r->child[dir];
599  r->child[dir] = f;
600  r->color = f->color;
601  f->color = 0;
602  return r;
603 }
604 
605 #define is_red(f) ((f) && !(f)->color)
606 
607 /* Balance a left-leaning red-black tree at the specified node */
608 static void balance_tree(CheckasmFunc **root)
609 {
610  CheckasmFunc *f = *root;
611 
612  if (is_red(f->child[0]) && is_red(f->child[1])) {
613  f->color ^= 1;
614  f->child[0]->color = f->child[1]->color = 1;
615  }
616 
617  if (!is_red(f->child[0]) && is_red(f->child[1]))
618  *root = rotate_tree(f, 0); /* Rotate left */
619  else if (is_red(f->child[0]) && is_red(f->child[0]->child[0]))
620  *root = rotate_tree(f, 1); /* Rotate right */
621 }
622 
623 /* Get a node with the specified name, creating it if it doesn't exist */
624 static CheckasmFunc *get_func(CheckasmFunc **root, const char *name)
625 {
626  CheckasmFunc *f = *root;
627 
628  if (f) {
629  /* Search the tree for a matching node */
630  int cmp = cmp_func_names(name, f->name);
631  if (cmp) {
632  f = get_func(&f->child[cmp > 0], name);
633 
634  /* Rebalance the tree on the way up if a new node was inserted */
635  if (!f->versions.func)
636  balance_tree(root);
637  }
638  } else {
639  /* Allocate and insert a new node into the tree */
640  int name_length = strlen(name);
641  f = *root = checkasm_malloc(sizeof(CheckasmFunc) + name_length);
642  memcpy(f->name, name, name_length + 1);
643  }
644 
645  return f;
646 }
647 
649 
650 /* Crash handling: attempt to catch crashes and handle them
651  * gracefully instead of just aborting abruptly. */
652 #ifdef _WIN32
653 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
654 static LONG NTAPI signal_handler(EXCEPTION_POINTERS *e) {
655  int s;
656 
657  if (!state.catch_signals)
658  return EXCEPTION_CONTINUE_SEARCH;
659 
660  switch (e->ExceptionRecord->ExceptionCode) {
661  case EXCEPTION_FLT_DIVIDE_BY_ZERO:
662  case EXCEPTION_INT_DIVIDE_BY_ZERO:
663  s = SIGFPE;
664  break;
665  case EXCEPTION_ILLEGAL_INSTRUCTION:
666  case EXCEPTION_PRIV_INSTRUCTION:
667  s = SIGILL;
668  break;
669  case EXCEPTION_ACCESS_VIOLATION:
670  case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
671  case EXCEPTION_DATATYPE_MISALIGNMENT:
672  case EXCEPTION_STACK_OVERFLOW:
673  s = SIGSEGV;
674  break;
675  case EXCEPTION_IN_PAGE_ERROR:
676  s = SIGBUS;
677  break;
678  default:
679  return EXCEPTION_CONTINUE_SEARCH;
680  }
681  state.catch_signals = 0;
683  return EXCEPTION_CONTINUE_EXECUTION; /* never reached, but shuts up gcc */
684 }
685 #endif
686 #else
687 static void signal_handler(int s);
688 
689 static const struct sigaction signal_handler_act = {
690  .sa_handler = signal_handler,
691  .sa_flags = SA_RESETHAND,
692 };
693 
694 static void signal_handler(int s) {
695  if (state.catch_signals) {
696  state.catch_signals = 0;
697  sigaction(s, &signal_handler_act, NULL);
699  }
700 }
701 #endif
702 
703 /* Perform tests and benchmarks for the specified cpu flag if supported by the host */
704 static void check_cpu_flag(const char *name, int flag)
705 {
706  int old_cpu_flag = state.cpu_flag;
707 
708  flag |= old_cpu_flag;
709  av_force_cpu_flags(-1);
710  state.cpu_flag = flag & av_get_cpu_flags();
711  av_force_cpu_flags(state.cpu_flag);
712 
713  if (!flag || state.cpu_flag != old_cpu_flag) {
714  int i;
715 
716  state.cpu_flag_name = name;
717  for (i = 0; tests[i].func; i++) {
718  if (state.test_name && strcmp(tests[i].name, state.test_name))
719  continue;
720  state.current_test_name = tests[i].name;
721  tests[i].func();
722  }
723  }
724 }
725 
726 /* Print the name of the current CPU flag, but only do it once */
727 static void print_cpu_name(void)
728 {
729  if (state.cpu_flag_name) {
730  color_printf(COLOR_YELLOW, "%s:\n", state.cpu_flag_name);
731  state.cpu_flag_name = NULL;
732  }
733 }
734 
735 #if CONFIG_LINUX_PERF
736 static int bench_init_linux(void)
737 {
738  struct perf_event_attr attr = {
739  .type = PERF_TYPE_HARDWARE,
740  .size = sizeof(struct perf_event_attr),
741  .config = PERF_COUNT_HW_CPU_CYCLES,
742  .disabled = 1, // start counting only on demand
743  .exclude_kernel = 1,
744  .exclude_hv = 1,
745  };
746 
747  printf("benchmarking with Linux Perf Monitoring API\n");
748 
749  state.sysfd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0);
750  if (state.sysfd == -1) {
751  perror("perf_event_open");
752  return -1;
753  }
754  return 0;
755 }
756 #elif CONFIG_MACOS_KPERF
757 static int bench_init_kperf(void)
758 {
759  ff_kperf_init();
760  return 0;
761 }
762 #else
763 static int bench_init_ffmpeg(void)
764 {
765 #ifdef AV_READ_TIME
766  if (!checkasm_save_context()) {
768  AV_READ_TIME();
770  } else {
771  fprintf(stderr, "checkasm: unable to execute platform specific timer\n");
772  return -1;
773  }
774  printf("benchmarking with native FFmpeg timers\n");
775  return 0;
776 #else
777  fprintf(stderr, "checkasm: --bench is not supported on your system\n");
778  return -1;
779 #endif
780 }
781 #endif
782 
783 static int bench_init(void)
784 {
785 #if CONFIG_LINUX_PERF
786  int ret = bench_init_linux();
787 #elif CONFIG_MACOS_KPERF
788  int ret = bench_init_kperf();
789 #else
790  int ret = bench_init_ffmpeg();
791 #endif
792  if (ret < 0)
793  return ret;
794 
795  state.nop_time = measure_nop_time();
796  printf("nop: %d.%d\n", state.nop_time/10, state.nop_time%10);
797  return 0;
798 }
799 
800 static void bench_uninit(void)
801 {
802 #if CONFIG_LINUX_PERF
803  if (state.sysfd > 0)
804  close(state.sysfd);
805 #endif
806 }
807 
808 static int usage(const char *path)
809 {
810  fprintf(stderr,
811  "Usage: %s [--bench] [--test=<pattern>] [--verbose] [seed]\n",
812  path);
813  return 1;
814 }
815 
816 int main(int argc, char *argv[])
817 {
818  unsigned int seed = av_get_random_seed();
819  int i, ret = 0;
820 
821 #ifdef _WIN32
822 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
823  AddVectoredExceptionHandler(0, signal_handler);
824 #endif
825 #else
826  sigaction(SIGBUS, &signal_handler_act, NULL);
827  sigaction(SIGFPE, &signal_handler_act, NULL);
828  sigaction(SIGILL, &signal_handler_act, NULL);
829  sigaction(SIGSEGV, &signal_handler_act, NULL);
830 #endif
831 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
833  checkasm_checked_call = checkasm_checked_call_vfp;
834 #endif
835 
836  if (!tests[0].func || !cpus[0].flag) {
837  fprintf(stderr, "checkasm: no tests to perform\n");
838  return 0;
839  }
840 
841  for (i = 1; i < argc; i++) {
842  const char *arg = argv[i];
843  unsigned long l;
844  char *end;
845 
846  if (!strncmp(arg, "--bench", 7)) {
847  if (bench_init() < 0)
848  return 1;
849  if (arg[7] == '=') {
850  state.bench_pattern = arg + 8;
851  state.bench_pattern_len = strlen(state.bench_pattern);
852  } else
853  state.bench_pattern = "";
854  } else if (!strncmp(arg, "--test=", 7)) {
855  state.test_name = arg + 7;
856  } else if (!strcmp(arg, "--verbose") || !strcmp(arg, "-v")) {
857  state.verbose = 1;
858  } else if ((l = strtoul(arg, &end, 10)) <= UINT_MAX &&
859  *end == '\0') {
860  seed = l;
861  } else {
862  return usage(argv[0]);
863  }
864  }
865 
866  fprintf(stderr, "checkasm: using random seed %u\n", seed);
868 
869  check_cpu_flag(NULL, 0);
870  for (i = 0; cpus[i].flag; i++)
872 
873  if (state.num_failed) {
874  fprintf(stderr, "checkasm: %d of %d tests have failed\n", state.num_failed, state.num_checked);
875  ret = 1;
876  } else {
877  fprintf(stderr, "checkasm: all %d tests passed\n", state.num_checked);
878  if (state.bench_pattern) {
879  print_benchs(state.funcs);
880  }
881  }
882 
883  destroy_func_tree(state.funcs);
884  bench_uninit();
885  return ret;
886 }
887 
888 /* Decide whether or not the specified function needs to be tested and
889  * allocate/initialize data structures if needed. Returns a pointer to a
890  * reference function if the function should be tested, otherwise NULL */
891 void *checkasm_check_func(void *func, const char *name, ...)
892 {
893  char name_buf[256];
894  void *ref = func;
896  int name_length;
897  va_list arg;
898 
899  va_start(arg, name);
900  name_length = vsnprintf(name_buf, sizeof(name_buf), name, arg);
901  va_end(arg);
902 
903  if (!func || name_length <= 0 || name_length >= sizeof(name_buf))
904  return NULL;
905 
906  state.current_func = get_func(&state.funcs, name_buf);
907  state.funcs->color = 1;
908  v = &state.current_func->versions;
909 
910  if (v->func) {
911  CheckasmFuncVersion *prev;
912  do {
913  /* Only test functions that haven't already been tested */
914  if (v->func == func)
915  return NULL;
916 
917  if (v->ok)
918  ref = v->func;
919 
920  prev = v;
921  } while ((v = v->next));
922 
923  v = prev->next = checkasm_malloc(sizeof(CheckasmFuncVersion));
924  }
925 
926  v->func = func;
927  v->ok = 1;
928  v->cpu = state.cpu_flag;
929  state.current_func_ver = v;
930 
931  if (state.cpu_flag)
932  state.num_checked++;
933 
934  return ref;
935 }
936 
937 /* Decide whether or not the current function needs to be benchmarked */
939 {
940  return !state.num_failed && state.bench_pattern &&
941  !strncmp(state.current_func->name, state.bench_pattern, state.bench_pattern_len);
942 }
943 
944 /* Indicate that the current test has failed */
945 void checkasm_fail_func(const char *msg, ...)
946 {
947  if (state.current_func_ver && state.current_func_ver->cpu &&
948  state.current_func_ver->ok)
949  {
950  va_list arg;
951 
952  print_cpu_name();
953  fprintf(stderr, " %s_%s (", state.current_func->name, cpu_suffix(state.current_func_ver->cpu));
954  va_start(arg, msg);
955  vfprintf(stderr, msg, arg);
956  va_end(arg);
957  fprintf(stderr, ")\n");
958 
959  state.current_func_ver->ok = 0;
960  state.num_failed++;
961  }
962 }
963 
965  state.catch_signals = enabled;
966 }
967 
969  if (s) {
970 #ifdef __GLIBC__
971  checkasm_fail_func("fatal signal %d: %s", s, strsignal(s));
972 #else
973  checkasm_fail_func(s == SIGFPE ? "fatal arithmetic error" :
974  s == SIGILL ? "illegal instruction" :
975  s == SIGBUS ? "bus error" :
976  "segmentation fault");
977 #endif
978  }
979  return s;
980 }
981 
982 /* Get the benchmark context of the current function */
984 {
985  CheckasmPerf *perf = &state.current_func_ver->perf;
986  memset(perf, 0, sizeof(*perf));
987  perf->sysfd = state.sysfd;
988  return perf;
989 }
990 
991 /* Print the outcome of all tests performed since the last time this function was called */
992 void checkasm_report(const char *name, ...)
993 {
994  static int prev_checked, prev_failed, max_length;
995 
996  if (state.num_checked > prev_checked) {
997  int pad_length = max_length + 4;
998  va_list arg;
999 
1000  print_cpu_name();
1001  pad_length -= fprintf(stderr, " - %s.", state.current_test_name);
1002  va_start(arg, name);
1003  pad_length -= vfprintf(stderr, name, arg);
1004  va_end(arg);
1005  fprintf(stderr, "%*c", FFMAX(pad_length, 0) + 2, '[');
1006 
1007  if (state.num_failed == prev_failed)
1008  color_printf(COLOR_GREEN, "OK");
1009  else
1010  color_printf(COLOR_RED, "FAILED");
1011  fprintf(stderr, "]\n");
1012 
1013  prev_checked = state.num_checked;
1014  prev_failed = state.num_failed;
1015  } else if (!state.cpu_flag) {
1016  /* Calculate the amount of padding required to make the output vertically aligned */
1017  int length = strlen(state.current_test_name);
1018  va_list arg;
1019 
1020  va_start(arg, name);
1021  length += vsnprintf(NULL, 0, name, arg);
1022  va_end(arg);
1023 
1024  if (length > max_length)
1025  max_length = length;
1026  }
1027 }
1028 
1029 #define DEF_CHECKASM_CHECK_FUNC(type, fmt) \
1030 int checkasm_check_##type(const char *file, int line, \
1031  const type *buf1, ptrdiff_t stride1, \
1032  const type *buf2, ptrdiff_t stride2, \
1033  int w, int h, const char *name) \
1034 { \
1035  int y = 0; \
1036  stride1 /= sizeof(*buf1); \
1037  stride2 /= sizeof(*buf2); \
1038  for (y = 0; y < h; y++) \
1039  if (memcmp(&buf1[y*stride1], &buf2[y*stride2], w*sizeof(*buf1))) \
1040  break; \
1041  if (y == h) \
1042  return 0; \
1043  checkasm_fail_func("%s:%d", file, line); \
1044  if (!state.verbose) \
1045  return 1; \
1046  fprintf(stderr, "%s:\n", name); \
1047  while (h--) { \
1048  for (int x = 0; x < w; x++) \
1049  fprintf(stderr, " " fmt, buf1[x]); \
1050  fprintf(stderr, " "); \
1051  for (int x = 0; x < w; x++) \
1052  fprintf(stderr, " " fmt, buf2[x]); \
1053  fprintf(stderr, " "); \
1054  for (int x = 0; x < w; x++) \
1055  fprintf(stderr, "%c", buf1[x] != buf2[x] ? 'x' : '.'); \
1056  buf1 += stride1; \
1057  buf2 += stride2; \
1058  fprintf(stderr, "\n"); \
1059  } \
1060  return 1; \
1061 }
1062 
1063 DEF_CHECKASM_CHECK_FUNC(uint8_t, "%02x")
1064 DEF_CHECKASM_CHECK_FUNC(uint16_t, "%04x")
1065 DEF_CHECKASM_CHECK_FUNC(uint32_t, "%08x")
1066 DEF_CHECKASM_CHECK_FUNC(int16_t, "%6d")
checkasm_check_nlmeans
void checkasm_check_nlmeans(void)
Definition: vf_nlmeans.c:31
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#define AV_CPU_FLAG_VFP
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Definition: random_seed.c:167
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Vectors of float's *‍/.
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int nop_time
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CheckasmPerf perf
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static struct @376 state
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#define AV_CPU_FLAG_SSE4
Penryn SSE4.1 functions.
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#define AV_CPU_FLAG_RVB_ADDR
Address bit-manipulations.
Definition: cpu.h:92
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void checkasm_check_hevc_pel(void)
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static const struct @375 cpus[]
cmp
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
Definition: motion_est.c:262
CheckasmPerf::iterations
int iterations
Definition: checkasm.h:304
CheckasmFuncVersion::ok
int ok
Definition: checkasm.c:314
arg
const char * arg
Definition: jacosubdec.c:67
func
void(* func)(void)
Definition: checkasm.c:78
AV_CPU_FLAG_RVD
#define AV_CPU_FLAG_RVD
D (double precision FP)
Definition: cpu.h:86
fabs
static __device__ float fabs(float a)
Definition: cuda_runtime.h:182
NULL
#define NULL
Definition: coverity.c:32
measure_nop_time
static int measure_nop_time(void)
Definition: checkasm.c:537
checkasm_check_takdsp
void checkasm_check_takdsp(void)
Definition: takdsp.c:145
double_near_abs_eps_array
int double_near_abs_eps_array(const double *a, const double *b, double eps, unsigned len)
Definition: checkasm.c:435
AV_CPU_FLAG_LASX
#define AV_CPU_FLAG_LASX
Definition: cpu.h:81
AV_CPU_FLAG_AVX512ICL
#define AV_CPU_FLAG_AVX512ICL
F/CD/BW/DQ/VL/VNNI/IFMA/VBMI/VBMI2/VPOPCNTDQ/BITALG/GFNI/VAES/VPCLMULQDQ.
Definition: cpu.h:57
checkasm_check_fmtconvert
void checkasm_check_fmtconvert(void)
Definition: fmtconvert.c:46
checkasm_load_context
#define checkasm_load_context(s)
Definition: checkasm.h:73
AV_CPU_FLAG_MSA
#define AV_CPU_FLAG_MSA
Definition: cpu.h:77
checkasm_save_context
#define checkasm_save_context()
Definition: checkasm.h:72
COLOR_GREEN
#define COLOR_GREEN
Definition: checkasm.c:57
checkasm_check_aacencdsp
void checkasm_check_aacencdsp(void)
Definition: aacencdsp.c:64
checkasm_check_vorbisdsp
void checkasm_check_vorbisdsp(void)
Definition: vorbisdsp.c:78
cpu.h
av_intfloat32
Definition: intfloat.h:27
AV_CPU_FLAG_CMOV
#define AV_CPU_FLAG_CMOV
supports cmov instruction
Definition: cpu.h:51
seed
static unsigned int seed
Definition: videogen.c:78
AV_CPU_FLAG_ALTIVEC
#define AV_CPU_FLAG_ALTIVEC
standard
Definition: cpu.h:60
print_benchs
static void print_benchs(CheckasmFunc *f)
Definition: checkasm.c:558
current_func
CheckasmFunc * current_func
Definition: checkasm.c:330
AV_CPU_FLAG_I8MM
#define AV_CPU_FLAG_I8MM
Definition: cpu.h:73
checkasm_check_vc1dsp
void checkasm_check_vc1dsp(void)
Definition: vc1dsp.c:441
catch_signals
volatile sig_atomic_t catch_signals
Definition: checkasm.c:346
checkasm_check_h264chroma
void checkasm_check_h264chroma(void)
Definition: h264chroma.c:81
AV_CPU_FLAG_SSE2
#define AV_CPU_FLAG_SSE2
PIV SSE2 functions.
Definition: cpu.h:34
CheckasmFunc::color
uint8_t color
Definition: checkasm.c:323
AVLFG
Context structure for the Lagged Fibonacci PRNG.
Definition: lfg.h:33
f
f
Definition: af_crystalizer.c:121
checkasm_check_llauddsp
void checkasm_check_llauddsp(void)
Definition: llauddsp.c:108
AV_CPU_FLAG_AVX
#define AV_CPU_FLAG_AVX
AVX functions: requires OS support even if YMM registers aren't used.
Definition: cpu.h:47
AV_CPU_FLAG_FMA4
#define AV_CPU_FLAG_FMA4
Bulldozer FMA4 functions.
Definition: cpu.h:50
cpu.h
AV_CPU_FLAG_AVX2
#define AV_CPU_FLAG_AVX2
AVX2 functions: requires OS support even if YMM registers aren't used.
Definition: cpu.h:52
checkasm_check_llviddsp
void checkasm_check_llviddsp(void)
Definition: llviddsp.c:195
checkasm_handle_signal
int checkasm_handle_signal(int s)
Definition: checkasm.c:968
AV_CPU_FLAG_SSE2SLOW
#define AV_CPU_FLAG_SSE2SLOW
SSE2 supported, but usually not faster.
Definition: cpu.h:35
AV_CPU_FLAG_NEON
#define AV_CPU_FLAG_NEON
Definition: cpu.h:69
size
int size
Definition: twinvq_data.h:10344
DEF_CHECKASM_CHECK_FUNC
#define DEF_CHECKASM_CHECK_FUNC(type, fmt)
Definition: checkasm.c:1029
printf
printf("static const uint8_t my_array[100] = {\n")
sysfd
int sysfd
Definition: checkasm.c:340
have_neon
#define have_neon(flags)
Definition: cpu.h:26
CheckasmFuncVersion::func
void * func
Definition: checkasm.c:313
checkasm_check_h264pred
void checkasm_check_h264pred(void)
Definition: h264pred.c:233
av_isdigit
static av_const int av_isdigit(int c)
Locale-independent conversion of ASCII isdigit.
Definition: avstring.h:202
AV_CPU_FLAG_FMA3
#define AV_CPU_FLAG_FMA3
Haswell FMA3 functions.
Definition: cpu.h:53
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
ff_kperf_init
void ff_kperf_init(void)
Definition: macos_kperf.c:99
checkasm_check_huffyuvdsp
void checkasm_check_huffyuvdsp(void)
Definition: huffyuvdsp.c:95
float_near_abs_eps_array_ulp
int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps, unsigned max_ulp, unsigned len)
Definition: checkasm.c:416
test_name
const char * test_name
Definition: checkasm.c:344
CheckasmPerf::cycles
uint64_t cycles
Definition: checkasm.h:303
checkasm_get_perf_context
CheckasmPerf * checkasm_get_perf_context(void)
Definition: checkasm.c:983
checkasm_check_fixed_dsp
void checkasm_check_fixed_dsp(void)
Definition: fixed_dsp.c:133
checkasm_check_colorspace
void checkasm_check_colorspace(void)
Definition: vf_colorspace.c:309
checkasm_check_utvideodsp
void checkasm_check_utvideodsp(void)
Definition: utvideodsp.c:91
is_negative
static int is_negative(union av_intfloat32 u)
Definition: checkasm.c:353
checkasm_check_audiodsp
void checkasm_check_audiodsp(void)
Definition: audiodsp.c:52
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:245
checkasm_check_flacdsp
void checkasm_check_flacdsp(void)
Definition: flacdsp.c:79
checkasm_check_func
void * checkasm_check_func(void *func, const char *name,...)
Definition: checkasm.c:891
AV_CPU_FLAG_SSE42
#define AV_CPU_FLAG_SSE42
Nehalem SSE4.2 functions.
Definition: cpu.h:45
checkasm_check_idctdsp
void checkasm_check_idctdsp(void)
Definition: idctdsp.c:95
CheckasmFuncVersion::next
struct CheckasmFuncVersion * next
Definition: checkasm.c:312
vsnprintf
#define vsnprintf
Definition: snprintf.h:36
common.h
use_color
static int use_color
Definition: log.c:123
AV_CPU_FLAG_RVV_I32
#define AV_CPU_FLAG_RVV_I32
Vectors of 8/16/32-bit int's *‍/.
Definition: cpu.h:87
checkasm_check_synth_filter
void checkasm_check_synth_filter(void)
Definition: synth_filter.c:47
cmp_func_names
static int cmp_func_names(const char *a, const char *b)
Definition: checkasm.c:580
AV_CPU_FLAG_ARMV8
#define AV_CPU_FLAG_ARMV8
Definition: cpu.h:70
checkasm_check_lpc
void checkasm_check_lpc(void)
Definition: lpc.c:60
len
int len
Definition: vorbis_enc_data.h:426
checkasm_check_g722dsp
void checkasm_check_g722dsp(void)
Definition: g722dsp.c:53
checkasm_check_ac3dsp
void checkasm_check_ac3dsp(void)
Definition: ac3dsp.c:64
PERF_STOP
#define PERF_STOP(t)
Definition: checkasm.h:360
is_red
#define is_red(f)
Definition: checkasm.c:605
AV_CPU_FLAG_ATOM
#define AV_CPU_FLAG_ATOM
Atom processor, some SSSE3 instructions are slower.
Definition: cpu.h:43
have_vfp
#define have_vfp(flags)
Definition: cpu.h:27
checkasm_check_svq1enc
void checkasm_check_svq1enc(void)
Definition: svq1enc.c:62
checkasm_check_vf_hflip
void checkasm_check_vf_hflip(void)
Definition: vf_hflip.c:72
ret
ret
Definition: filter_design.txt:187
checkasm_check_blend
void checkasm_check_blend(void)
Definition: vf_blend.c:88
verbose
int verbose
Definition: checkasm.c:345
tests
static const struct @374 tests[]
AV_CPU_FLAG_VFPV3
#define AV_CPU_FLAG_VFPV3
Definition: cpu.h:68
checkasm_check_bswapdsp
void checkasm_check_bswapdsp(void)
Definition: bswapdsp.c:60
checkasm_context_buf
checkasm_context checkasm_context_buf
Definition: checkasm.c:648
AV_CPU_FLAG_ARMV5TE
#define AV_CPU_FLAG_ARMV5TE
Definition: cpu.h:64
AV_CPU_FLAG_MMX
#define AV_CPU_FLAG_MMX
standard MMX
Definition: cpu.h:29
suffix
const char * suffix
Definition: checkasm.c:252
checkasm_malloc
static void * checkasm_malloc(size_t size)
Definition: checkasm.c:508
AV_CPU_FLAG_RVI
#define AV_CPU_FLAG_RVI
I (full GPR bank)
Definition: cpu.h:84
checkasm_check_h264qpel
void checkasm_check_h264qpel(void)
Definition: h264qpel.c:51
random_seed.h
signal_handler
static void signal_handler(int s)
Definition: checkasm.c:694
AV_CPU_FLAG_AESNI
#define AV_CPU_FLAG_AESNI
Advanced Encryption Standard functions.
Definition: cpu.h:46
checkasm_bench_func
int checkasm_bench_func(void)
Definition: checkasm.c:938
AV_CPU_FLAG_POWER8
#define AV_CPU_FLAG_POWER8
ISA 2.07.
Definition: cpu.h:62
cpu_flag_name
const char * cpu_flag_name
Definition: checkasm.c:343
checkasm_check_vf_sobel
void checkasm_check_vf_sobel(void)
Definition: vf_convolution.c:100
AV_CPU_FLAG_SSE
#define AV_CPU_FLAG_SSE
SSE functions.
Definition: cpu.h:33
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:112
float_near_ulp_array
int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp, unsigned len)
Definition: checkasm.c:376
signal_handler_act
static const struct sigaction signal_handler_act
Definition: checkasm.c:689
AV_CPU_FLAG_MMXEXT
#define AV_CPU_FLAG_MMXEXT
SSE integer functions or AMD MMX ext.
Definition: cpu.h:30
checkasm_check_av_tx
void checkasm_check_av_tx(void)
Definition: av_tx.c:101
av_intfloat32::f
float f
Definition: intfloat.h:29
flag
int flag
Definition: checkasm.c:253
checkasm_check_v210enc
void checkasm_check_v210enc(void)
Definition: v210enc.c:84
checkasm_check_sbrdsp
void checkasm_check_sbrdsp(void)
Definition: sbrdsp.c:257
checkasm_check_hevc_deblock
void checkasm_check_hevc_deblock(void)
Definition: hevc_deblock.c:91
usage
static int usage(const char *path)
Definition: checkasm.c:808
AV_CPU_FLAG_VFP_VM
#define AV_CPU_FLAG_VFP_VM
VFPv2 vector mode, deprecated in ARMv7-A and unavailable in various CPUs implementations.
Definition: cpu.h:71
AV_CPU_FLAG_MMI
#define AV_CPU_FLAG_MMI
Definition: cpu.h:76
checkasm_check_jpeg2000dsp
void checkasm_check_jpeg2000dsp(void)
Definition: jpeg2000dsp.c:92
d
d
Definition: ffmpeg_filter.c:424
checkasm_check_hevc_add_res
void checkasm_check_hevc_add_res(void)
Definition: hevc_add_res.c:87
int32_t
int32_t
Definition: audioconvert.c:56
float_near_ulp
int float_near_ulp(float a, float b, unsigned max_ulp)
Definition: checkasm.c:358
current_func_ver
CheckasmFuncVersion * current_func_ver
Definition: checkasm.c:331
check_cpu_flag
static void check_cpu_flag(const char *name, int flag)
Definition: checkasm.c:704
checkasm_context
sigjmp_buf checkasm_context
Definition: checkasm.h:71
bench_init_ffmpeg
static int bench_init_ffmpeg(void)
Definition: checkasm.c:763
checkasm_check_rv34dsp
void checkasm_check_rv34dsp(void)
Definition: rv34dsp.c:82
CheckasmFunc::versions
CheckasmFuncVersion versions
Definition: checkasm.c:322
isatty
#define isatty(fd)
Definition: checkasm.c:66
AV_CPU_FLAG_RVV_I64
#define AV_CPU_FLAG_RVV_I64
Vectors of 64-bit int's *‍/.
Definition: cpu.h:89
CheckasmFunc::name
char name[1]
Definition: checkasm.c:324
checkasm_check_exrdsp
void checkasm_check_exrdsp(void)
Definition: exrdsp.c:77
balance_tree
static void balance_tree(CheckasmFunc **root)
Definition: checkasm.c:608
AV_CPU_FLAG_ARMV6T2
#define AV_CPU_FLAG_ARMV6T2
Definition: cpu.h:66
funcs
CheckasmFunc * funcs
Definition: checkasm.c:329
checkasm_check_opusdsp
void checkasm_check_opusdsp(void)
Definition: opusdsp.c:85