Libav
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 Libav.
7  *
8  * Libav 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  * Libav 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 Libav; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  */
22 
23 #include <stdarg.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include "checkasm.h"
28 #include "libavutil/common.h"
29 #include "libavutil/cpu.h"
30 #include "libavutil/intfloat.h"
31 #include "libavutil/random_seed.h"
32 
33 #if HAVE_IO_H
34 #include <io.h>
35 #endif
36 
37 #if HAVE_SETCONSOLETEXTATTRIBUTE
38 #include <windows.h>
39 #define COLOR_RED FOREGROUND_RED
40 #define COLOR_GREEN FOREGROUND_GREEN
41 #define COLOR_YELLOW (FOREGROUND_RED|FOREGROUND_GREEN)
42 #else
43 #define COLOR_RED 1
44 #define COLOR_GREEN 2
45 #define COLOR_YELLOW 3
46 #endif
47 
48 #if HAVE_UNISTD_H
49 #include <unistd.h>
50 #endif
51 
52 #if !HAVE_ISATTY
53 #define isatty(fd) 1
54 #endif
55 
56 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
57 #include "libavutil/arm/cpu.h"
58 
59 void (*checkasm_checked_call)(void *func, int dummy, ...) = checkasm_checked_call_novfp;
60 #endif
61 
62 /* List of tests to invoke */
63 static const struct {
64  const char *name;
65  void (*func)(void);
66 } tests[] = {
67 #if CONFIG_BSWAPDSP
68  { "bswapdsp", checkasm_check_bswapdsp },
69 #endif
70 #if CONFIG_DCA_DECODER
71  { "dcadsp", checkasm_check_dcadsp },
72  { "synth_filter", checkasm_check_synth_filter },
73 #endif
74 #if CONFIG_FMTCONVERT
75  { "fmtconvert", checkasm_check_fmtconvert },
76 #endif
77 #if CONFIG_H264DSP
78  { "h264dsp", checkasm_check_h264dsp },
79 #endif
80 #if CONFIG_H264PRED
81  { "h264pred", checkasm_check_h264pred },
82 #endif
83 #if CONFIG_H264QPEL
84  { "h264qpel", checkasm_check_h264qpel },
85 #endif
86 #if CONFIG_HEVC_DECODER
87  { "hevc_mc", checkasm_check_hevc_mc },
88  { "hevc_idct", checkasm_check_hevc_idct },
89 #endif
90 #if CONFIG_V210_ENCODER
91  { "v210enc", checkasm_check_v210enc },
92 #endif
93 #if CONFIG_VP8DSP
94  { "vp8dsp", checkasm_check_vp8dsp },
95 #endif
96 #if CONFIG_VP9_DECODER
97  { "vp9dsp", checkasm_check_vp9dsp },
98 #endif
99  { NULL }
100 };
101 
102 /* List of cpu flags to check */
103 static const struct {
104  const char *name;
105  const char *suffix;
106  int flag;
107 } cpus[] = {
108 #if ARCH_AARCH64
109  { "ARMV8", "armv8", AV_CPU_FLAG_ARMV8 },
110  { "NEON", "neon", AV_CPU_FLAG_NEON },
111 #elif ARCH_ARM
112  { "ARMV5TE", "armv5te", AV_CPU_FLAG_ARMV5TE },
113  { "ARMV6", "armv6", AV_CPU_FLAG_ARMV6 },
114  { "ARMV6T2", "armv6t2", AV_CPU_FLAG_ARMV6T2 },
115  { "VFP", "vfp", AV_CPU_FLAG_VFP },
116  { "VFP_VM", "vfp_vm", AV_CPU_FLAG_VFP_VM },
117  { "VFPV3", "vfp3", AV_CPU_FLAG_VFPV3 },
118  { "NEON", "neon", AV_CPU_FLAG_NEON },
119 #elif ARCH_PPC
120  { "ALTIVEC", "altivec", AV_CPU_FLAG_ALTIVEC },
121  { "VSX", "vsx", AV_CPU_FLAG_VSX },
122  { "POWER8", "power8", AV_CPU_FLAG_POWER8 },
123 #elif ARCH_X86
124  { "MMX", "mmx", AV_CPU_FLAG_MMX|AV_CPU_FLAG_CMOV },
125  { "MMXEXT", "mmxext", AV_CPU_FLAG_MMXEXT },
126  { "3DNOW", "3dnow", AV_CPU_FLAG_3DNOW },
127  { "3DNOWEXT", "3dnowext", AV_CPU_FLAG_3DNOWEXT },
128  { "SSE", "sse", AV_CPU_FLAG_SSE },
129  { "SSE2", "sse2", AV_CPU_FLAG_SSE2|AV_CPU_FLAG_SSE2SLOW },
130  { "SSE3", "sse3", AV_CPU_FLAG_SSE3|AV_CPU_FLAG_SSE3SLOW },
131  { "SSSE3", "ssse3", AV_CPU_FLAG_SSSE3|AV_CPU_FLAG_ATOM },
132  { "SSE4.1", "sse4", AV_CPU_FLAG_SSE4 },
133  { "SSE4.2", "sse42", AV_CPU_FLAG_SSE42 },
134  { "AVX", "avx", AV_CPU_FLAG_AVX },
135  { "XOP", "xop", AV_CPU_FLAG_XOP },
136  { "FMA3", "fma3", AV_CPU_FLAG_FMA3 },
137  { "FMA4", "fma4", AV_CPU_FLAG_FMA4 },
138  { "AVX2", "avx2", AV_CPU_FLAG_AVX2 },
139 #endif
140  { NULL }
141 };
142 
143 typedef struct CheckasmFuncVersion {
145  void *func;
146  int ok;
147  int cpu;
149  uint64_t cycles;
151 
152 /* Binary search tree node */
153 typedef struct CheckasmFunc {
154  struct CheckasmFunc *child[2];
156  uint8_t color; /* 0 = red, 1 = black */
157  char name[1];
158 } CheckasmFunc;
159 
160 /* Internal state */
161 static struct {
165  const char *current_test_name;
166  const char *bench_pattern;
170  int nop_time;
171  int cpu_flag;
172  const char *cpu_flag_name;
173 } state;
174 
175 /* PRNG state */
177 
178 /* float compare support code */
179 static int is_negative(union av_intfloat32 u)
180 {
181  return u.i >> 31;
182 }
183 
184 int float_near_ulp(float a, float b, unsigned max_ulp)
185 {
186  union av_intfloat32 x, y;
187 
188  x.f = a;
189  y.f = b;
190 
191  if (is_negative(x) != is_negative(y)) {
192  // handle -0.0 == +0.0
193  return a == b;
194  }
195 
196  if (llabs((int64_t)x.i - y.i) <= max_ulp)
197  return 1;
198 
199  return 0;
200 }
201 
202 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
203  unsigned len)
204 {
205  unsigned i;
206 
207  for (i = 0; i < len; i++) {
208  if (!float_near_ulp(a[i], b[i], max_ulp))
209  return 0;
210  }
211  return 1;
212 }
213 
214 int float_near_abs_eps(float a, float b, float eps)
215 {
216  float abs_diff = fabsf(a - b);
217 
218  return abs_diff < eps;
219 }
220 
221 int float_near_abs_eps_array(const float *a, const float *b, float eps,
222  unsigned len)
223 {
224  unsigned i;
225 
226  for (i = 0; i < len; i++) {
227  if (!float_near_abs_eps(a[i], b[i], eps))
228  return 0;
229  }
230  return 1;
231 }
232 
233 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp)
234 {
235  return float_near_ulp(a, b, max_ulp) || float_near_abs_eps(a, b, eps);
236 }
237 
238 int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
239  unsigned max_ulp, unsigned len)
240 {
241  unsigned i;
242 
243  for (i = 0; i < len; i++) {
244  if (!float_near_abs_eps_ulp(a[i], b[i], eps, max_ulp))
245  return 0;
246  }
247  return 1;
248 }
249 
250 /* Print colored text to stderr if the terminal supports it */
251 static void color_printf(int color, const char *fmt, ...)
252 {
253  static int use_color = -1;
254  va_list arg;
255 
256 #if HAVE_SETCONSOLETEXTATTRIBUTE
257  static HANDLE con;
258  static WORD org_attributes;
259 
260  if (use_color < 0) {
261  CONSOLE_SCREEN_BUFFER_INFO con_info;
262  con = GetStdHandle(STD_ERROR_HANDLE);
263  if (con && con != INVALID_HANDLE_VALUE && GetConsoleScreenBufferInfo(con, &con_info)) {
264  org_attributes = con_info.wAttributes;
265  use_color = 1;
266  } else
267  use_color = 0;
268  }
269  if (use_color)
270  SetConsoleTextAttribute(con, (org_attributes & 0xfff0) | (color & 0x0f));
271 #else
272  if (use_color < 0) {
273  const char *term = getenv("TERM");
274  use_color = term && strcmp(term, "dumb") && isatty(2);
275  }
276  if (use_color)
277  fprintf(stderr, "\x1b[%d;3%dm", (color & 0x08) >> 3, color & 0x07);
278 #endif
279 
280  va_start(arg, fmt);
281  vfprintf(stderr, fmt, arg);
282  va_end(arg);
283 
284  if (use_color) {
285 #if HAVE_SETCONSOLETEXTATTRIBUTE
286  SetConsoleTextAttribute(con, org_attributes);
287 #else
288  fprintf(stderr, "\x1b[0m");
289 #endif
290  }
291 }
292 
293 /* Deallocate a tree */
295 {
296  if (f) {
298  while (v) {
300  free(v);
301  v = next;
302  }
303 
304  destroy_func_tree(f->child[0]);
305  destroy_func_tree(f->child[1]);
306  free(f);
307  }
308 }
309 
310 /* Allocate a zero-initialized block, clean up and exit on failure */
311 static void *checkasm_malloc(size_t size)
312 {
313  void *ptr = calloc(1, size);
314  if (!ptr) {
315  fprintf(stderr, "checkasm: malloc failed\n");
316  destroy_func_tree(state.funcs);
317  exit(1);
318  }
319  return ptr;
320 }
321 
322 /* Get the suffix of the specified cpu flag */
323 static const char *cpu_suffix(int cpu)
324 {
325  int i = FF_ARRAY_ELEMS(cpus);
326 
327  while (--i >= 0)
328  if (cpu & cpus[i].flag)
329  return cpus[i].suffix;
330 
331  return "c";
332 }
333 
334 #ifdef AV_READ_TIME
335 static int cmp_nop(const void *a, const void *b)
336 {
337  return *(const uint16_t*)a - *(const uint16_t*)b;
338 }
339 
340 /* Measure the overhead of the timing code (in decicycles) */
341 static int measure_nop_time(void)
342 {
343  uint16_t nops[10000];
344  int i, nop_sum = 0;
345 
346  for (i = 0; i < 10000; i++) {
347  uint64_t t = AV_READ_TIME();
348  nops[i] = AV_READ_TIME() - t;
349  }
350 
351  qsort(nops, 10000, sizeof(uint16_t), cmp_nop);
352  for (i = 2500; i < 7500; i++)
353  nop_sum += nops[i];
354 
355  return nop_sum / 500;
356 }
357 
358 /* Print benchmark results */
359 static void print_benchs(CheckasmFunc *f)
360 {
361  if (f) {
362  print_benchs(f->child[0]);
363 
364  /* Only print functions with at least one assembly version */
365  if (f->versions.cpu || f->versions.next) {
366  CheckasmFuncVersion *v = &f->versions;
367  do {
368  if (v->iterations) {
369  int decicycles = (10*v->cycles/v->iterations - state.nop_time) / 4;
370  printf("%s_%s: %d.%d\n", f->name, cpu_suffix(v->cpu), decicycles/10, decicycles%10);
371  }
372  } while ((v = v->next));
373  }
374 
375  print_benchs(f->child[1]);
376  }
377 }
378 #endif
379 
380 /* ASCIIbetical sort except preserving natural order for numbers */
381 static int cmp_func_names(const char *a, const char *b)
382 {
383  const char *start = a;
384  int ascii_diff, digit_diff;
385 
386  for (; !(ascii_diff = *(const unsigned char*)a - *(const unsigned char*)b) && *a; a++, b++);
387  for (; av_isdigit(*a) && av_isdigit(*b); a++, b++);
388 
389  if (a > start && av_isdigit(a[-1]) && (digit_diff = av_isdigit(*a) - av_isdigit(*b)))
390  return digit_diff;
391 
392  return ascii_diff;
393 }
394 
395 /* Perform a tree rotation in the specified direction and return the new root */
397 {
398  CheckasmFunc *r = f->child[dir^1];
399  f->child[dir^1] = r->child[dir];
400  r->child[dir] = f;
401  r->color = f->color;
402  f->color = 0;
403  return r;
404 }
405 
406 #define is_red(f) ((f) && !(f)->color)
407 
408 /* Balance a left-leaning red-black tree at the specified node */
409 static void balance_tree(CheckasmFunc **root)
410 {
411  CheckasmFunc *f = *root;
412 
413  if (is_red(f->child[0]) && is_red(f->child[1])) {
414  f->color ^= 1;
415  f->child[0]->color = f->child[1]->color = 1;
416  }
417 
418  if (!is_red(f->child[0]) && is_red(f->child[1]))
419  *root = rotate_tree(f, 0); /* Rotate left */
420  else if (is_red(f->child[0]) && is_red(f->child[0]->child[0]))
421  *root = rotate_tree(f, 1); /* Rotate right */
422 }
423 
424 /* Get a node with the specified name, creating it if it doesn't exist */
425 static CheckasmFunc *get_func(CheckasmFunc **root, const char *name)
426 {
427  CheckasmFunc *f = *root;
428 
429  if (f) {
430  /* Search the tree for a matching node */
431  int cmp = cmp_func_names(name, f->name);
432  if (cmp) {
433  f = get_func(&f->child[cmp > 0], name);
434 
435  /* Rebalance the tree on the way up if a new node was inserted */
436  if (!f->versions.func)
437  balance_tree(root);
438  }
439  } else {
440  /* Allocate and insert a new node into the tree */
441  int name_length = strlen(name);
442  f = *root = checkasm_malloc(sizeof(CheckasmFunc) + name_length);
443  memcpy(f->name, name, name_length + 1);
444  }
445 
446  return f;
447 }
448 
449 /* Perform tests and benchmarks for the specified cpu flag if supported by the host */
450 static void check_cpu_flag(const char *name, int flag)
451 {
452  int old_cpu_flag = state.cpu_flag;
453 
454  flag |= old_cpu_flag;
455  av_set_cpu_flags_mask(flag);
456  state.cpu_flag = av_get_cpu_flags();
457 
458  if (!flag || state.cpu_flag != old_cpu_flag) {
459  int i;
460 
461  state.cpu_flag_name = name;
462  for (i = 0; tests[i].func; i++) {
463  state.current_test_name = tests[i].name;
464  tests[i].func();
465  }
466  }
467 }
468 
469 /* Print the name of the current CPU flag, but only do it once */
470 static void print_cpu_name(void)
471 {
472  if (state.cpu_flag_name) {
473  color_printf(COLOR_YELLOW, "%s:\n", state.cpu_flag_name);
474  state.cpu_flag_name = NULL;
475  }
476 }
477 
478 int main(int argc, char *argv[])
479 {
480  int i, seed, ret = 0;
481 
482 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
484  checkasm_checked_call = checkasm_checked_call_vfp;
485 #endif
486 
487  if (!tests[0].func || !cpus[0].flag) {
488  fprintf(stderr, "checkasm: no tests to perform\n");
489  return 0;
490  }
491 
492  if (argc > 1 && !strncmp(argv[1], "--bench", 7)) {
493 #ifndef AV_READ_TIME
494  fprintf(stderr, "checkasm: --bench is not supported on your system\n");
495  return 1;
496 #endif
497  if (argv[1][7] == '=') {
498  state.bench_pattern = argv[1] + 8;
499  state.bench_pattern_len = strlen(state.bench_pattern);
500  } else
501  state.bench_pattern = "";
502 
503  argc--;
504  argv++;
505  }
506 
507  seed = (argc > 1) ? atoi(argv[1]) : av_get_random_seed();
508  fprintf(stderr, "checkasm: using random seed %u\n", seed);
509  av_lfg_init(&checkasm_lfg, seed);
510 
511  check_cpu_flag(NULL, 0);
512  for (i = 0; cpus[i].flag; i++)
513  check_cpu_flag(cpus[i].name, cpus[i].flag);
514 
515  if (state.num_failed) {
516  fprintf(stderr, "checkasm: %d of %d tests have failed\n", state.num_failed, state.num_checked);
517  ret = 1;
518  } else {
519  fprintf(stderr, "checkasm: all %d tests passed\n", state.num_checked);
520 #ifdef AV_READ_TIME
521  if (state.bench_pattern) {
522  state.nop_time = measure_nop_time();
523  printf("nop: %d.%d\n", state.nop_time/10, state.nop_time%10);
524  print_benchs(state.funcs);
525  }
526 #endif
527  }
528 
529  destroy_func_tree(state.funcs);
530  return ret;
531 }
532 
533 /* Decide whether or not the specified function needs to be tested and
534  * allocate/initialize data structures if needed. Returns a pointer to a
535  * reference function if the function should be tested, otherwise NULL */
536 void *checkasm_check_func(void *func, const char *name, ...)
537 {
538  char name_buf[256];
539  void *ref = func;
541  int name_length;
542  va_list arg;
543 
544  va_start(arg, name);
545  name_length = vsnprintf(name_buf, sizeof(name_buf), name, arg);
546  va_end(arg);
547 
548  if (!func || name_length <= 0 || name_length >= sizeof(name_buf))
549  return NULL;
550 
551  state.current_func = get_func(&state.funcs, name_buf);
552  state.funcs->color = 1;
553  v = &state.current_func->versions;
554 
555  if (v->func) {
556  CheckasmFuncVersion *prev;
557  do {
558  /* Only test functions that haven't already been tested */
559  if (v->func == func)
560  return NULL;
561 
562  if (v->ok)
563  ref = v->func;
564 
565  prev = v;
566  } while ((v = v->next));
567 
568  v = prev->next = checkasm_malloc(sizeof(CheckasmFuncVersion));
569  }
570 
571  v->func = func;
572  v->ok = 1;
573  v->cpu = state.cpu_flag;
574  state.current_func_ver = v;
575 
576  if (state.cpu_flag)
577  state.num_checked++;
578 
579  return ref;
580 }
581 
582 /* Decide whether or not the current function needs to be benchmarked */
584 {
585  return !state.num_failed && state.bench_pattern &&
586  !strncmp(state.current_func->name, state.bench_pattern, state.bench_pattern_len);
587 }
588 
589 /* Indicate that the current test has failed */
590 void checkasm_fail_func(const char *msg, ...)
591 {
592  if (state.current_func_ver->cpu && state.current_func_ver->ok) {
593  va_list arg;
594 
595  print_cpu_name();
596  fprintf(stderr, " %s_%s (", state.current_func->name, cpu_suffix(state.current_func_ver->cpu));
597  va_start(arg, msg);
598  vfprintf(stderr, msg, arg);
599  va_end(arg);
600  fprintf(stderr, ")\n");
601 
602  state.current_func_ver->ok = 0;
603  state.num_failed++;
604  }
605 }
606 
607 /* Update benchmark results of the current function */
609 {
610  state.current_func_ver->iterations += iterations;
611  state.current_func_ver->cycles += cycles;
612 }
613 
614 /* Print the outcome of all tests performed since the last time this function was called */
615 void checkasm_report(const char *name, ...)
616 {
617  static int prev_checked, prev_failed, max_length;
618 
619  if (state.num_checked > prev_checked) {
620  int pad_length = max_length + 4;
621  va_list arg;
622 
623  print_cpu_name();
624  pad_length -= fprintf(stderr, " - %s.", state.current_test_name);
625  va_start(arg, name);
626  pad_length -= vfprintf(stderr, name, arg);
627  va_end(arg);
628  fprintf(stderr, "%*c", FFMAX(pad_length, 0) + 2, '[');
629 
630  if (state.num_failed == prev_failed)
631  color_printf(COLOR_GREEN, "OK");
632  else
633  color_printf(COLOR_RED, "FAILED");
634  fprintf(stderr, "]\n");
635 
636  prev_checked = state.num_checked;
637  prev_failed = state.num_failed;
638  } else if (!state.cpu_flag) {
639  /* Calculate the amount of padding required to make the output vertically aligned */
640  int length = strlen(state.current_test_name);
641  va_list arg;
642 
643  va_start(arg, name);
644  length += vsnprintf(NULL, 0, name, arg);
645  va_end(arg);
646 
647  if (length > max_length)
648  max_length = length;
649  }
650 }
Definition: lfg.h:25
const char * name
Definition: checkasm.c:64
#define AV_CPU_FLAG_AVX
AVX functions: requires OS support even if YMM registers aren&#39;t used.
Definition: cpu.h:45
#define AV_CPU_FLAG_ALTIVEC
standard
Definition: cpu.h:55
void checkasm_check_v210enc(void)
Definition: v210enc.c:81
static av_const int av_isdigit(int c)
Locale-independent conversion of ASCII isdigit.
Definition: avstring.h:157
int size
CheckasmFunc * current_func
Definition: checkasm.c:163
int float_near_abs_eps_array(const float *a, const float *b, float eps, unsigned len)
Definition: checkasm.c:221
static int is_negative(union av_intfloat32 u)
Definition: checkasm.c:179
void checkasm_check_hevc_mc(void)
Definition: hevc_mc.c:292
#define AV_CPU_FLAG_SSE
SSE functions.
Definition: cpu.h:32
void checkasm_check_vp9dsp(void)
Definition: vp9dsp.c:124
void av_set_cpu_flags_mask(int mask)
Set a mask on flags returned by av_get_cpu_flags().
Definition: cpu.c:69
#define AV_CPU_FLAG_CMOV
i686 cmov
Definition: cpu.h:49
void checkasm_check_h264pred(void)
Definition: h264pred.c:232
#define AV_CPU_FLAG_VFP
Definition: cpu.h:62
#define FF_ARRAY_ELEMS(a)
static const char * cpu_suffix(int cpu)
Definition: checkasm.c:323
CheckasmFuncVersion * current_func_ver
Definition: checkasm.c:164
static int cmp_func_names(const char *a, const char *b)
Definition: checkasm.c:381
int float_near_abs_eps(float a, float b, float eps)
Definition: checkasm.c:214
void * checkasm_check_func(void *func, const char *name,...)
Definition: checkasm.c:536
void checkasm_check_vp8dsp(void)
Definition: vp8dsp.c:507
struct CheckasmFunc * child[2]
Definition: checkasm.c:154
uint8_t
const char * cpu_flag_name
Definition: checkasm.c:172
int checkasm_bench_func(void)
Definition: checkasm.c:583
#define b
Definition: input.c:52
#define AV_CPU_FLAG_FMA3
Haswell FMA3 functions.
Definition: cpu.h:51
char name[1]
Definition: checkasm.c:157
#define AV_CPU_FLAG_NEON
Definition: cpu.h:64
#define AV_CPU_FLAG_MMXEXT
SSE integer functions or AMD MMX ext.
Definition: cpu.h:30
int main(int argc, char *argv[])
Definition: checkasm.c:478
#define AV_CPU_FLAG_ATOM
Atom processor, some SSSE3 instructions are slower.
Definition: cpu.h:42
#define COLOR_YELLOW
Definition: checkasm.c:45
#define AV_READ_TIME
Definition: timer.h:26
#define AV_CPU_FLAG_AVX2
AVX2 functions: requires OS support even if YMM registers aren&#39;t used.
Definition: cpu.h:50
#define AV_CPU_FLAG_SSE2SLOW
SSE2 supported, but usually not faster.
Definition: cpu.h:34
void checkasm_check_h264qpel(void)
Definition: h264qpel.c:50
CheckasmFunc * funcs
Definition: checkasm.c:162
#define AV_CPU_FLAG_XOP
Bulldozer XOP functions.
Definition: cpu.h:47
int flag
Definition: checkasm.c:106
#define r
Definition: input.c:51
#define AV_CPU_FLAG_SSE42
Nehalem SSE4.2 functions.
Definition: cpu.h:44
#define isatty(fd)
Definition: checkasm.c:53
static CheckasmFunc * get_func(CheckasmFunc **root, const char *name)
Definition: checkasm.c:425
CheckasmFuncVersion versions
Definition: checkasm.c:155
const char * suffix
Definition: checkasm.c:105
#define AV_CPU_FLAG_SSSE3
Conroe SSSE3 functions.
Definition: cpu.h:40
int float_near_ulp(float a, float b, unsigned max_ulp)
Definition: checkasm.c:184
void checkasm_check_h264dsp(void)
Definition: h264dsp.c:229
int num_checked
Definition: checkasm.c:168
#define COLOR_GREEN
Definition: checkasm.c:44
#define AV_CPU_FLAG_ARMV6T2
Definition: cpu.h:61
AVLFG checkasm_lfg
Definition: checkasm.c:176
#define AV_CPU_FLAG_VFP_VM
VFPv2 vector mode, deprecated in ARMv7-A and unavailable in various CPUs implementations.
Definition: cpu.h:66
#define FFMAX(a, b)
Definition: common.h:64
static const struct @172 tests[]
#define AV_CPU_FLAG_ARMV5TE
Definition: cpu.h:59
#define have_neon(flags)
Definition: cpu.h:27
#define AV_CPU_FLAG_SSE3
Prescott SSE3 functions.
Definition: cpu.h:37
#define is_red(f)
Definition: checkasm.c:406
uint32_t i
Definition: intfloat.h:28
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:257
#define AV_CPU_FLAG_VFPV3
Definition: cpu.h:63
static void * checkasm_malloc(size_t size)
Definition: checkasm.c:311
const char * bench_pattern
Definition: checkasm.c:166
int bench_pattern_len
Definition: checkasm.c:167
void checkasm_report(const char *name,...)
Definition: checkasm.c:615
void checkasm_check_hevc_idct(void)
Definition: hevc_idct.c:62
int cpu_flag
Definition: checkasm.c:171
int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp, unsigned len)
Definition: checkasm.c:202
#define AV_CPU_FLAG_3DNOW
AMD 3DNOW.
Definition: cpu.h:31
int nop_time
Definition: checkasm.c:170
NULL
Definition: eval.c:55
#define AV_CPU_FLAG_ARMV6
Definition: cpu.h:60
int num_failed
Definition: checkasm.c:169
#define AV_CPU_FLAG_SSE3SLOW
SSE3 supported, but usually not faster.
Definition: cpu.h:38
#define COLOR_RED
Definition: checkasm.c:43
void(* func)(void)
Definition: checkasm.c:65
#define AV_CPU_FLAG_MMX
standard MMX
Definition: cpu.h:29
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
static unsigned int seed
Definition: videogen.c:78
static const struct @173 cpus[]
void checkasm_check_fmtconvert(void)
Definition: fmtconvert.c:44
static CheckasmFunc * rotate_tree(CheckasmFunc *f, int dir)
Definition: checkasm.c:396
static const uint8_t color[NB_LEVELS]
Definition: log.c:62
#define AV_CPU_FLAG_FMA4
Bulldozer FMA4 functions.
Definition: cpu.h:48
#define AV_CPU_FLAG_SSE4
Penryn SSE4.1 functions.
Definition: cpu.h:43
#define AV_CPU_FLAG_VSX
ISA 2.06.
Definition: cpu.h:56
av_cold void av_lfg_init(AVLFG *c, unsigned int seed)
Definition: lfg.c:30
#define u(width,...)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:47
static void color_printf(int color, const char *fmt,...)
Definition: checkasm.c:251
#define AV_CPU_FLAG_3DNOWEXT
AMD 3DNowExt.
Definition: cpu.h:36
#define AV_CPU_FLAG_POWER8
ISA 2.07.
Definition: cpu.h:57
int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp)
Definition: checkasm.c:233
void checkasm_update_bench(int iterations, uint64_t cycles)
Definition: checkasm.c:608
static struct @174 state
static void destroy_func_tree(CheckasmFunc *f)
Definition: checkasm.c:294
common internal and external API header
struct CheckasmFuncVersion * next
Definition: checkasm.c:144
#define AV_CPU_FLAG_ARMV8
Definition: cpu.h:65
const char * current_test_name
Definition: checkasm.c:165
static void check_cpu_flag(const char *name, int flag)
Definition: checkasm.c:450
static int use_color
Definition: log.c:69
#define have_vfp(flags)
Definition: cpu.h:28
int len
void checkasm_check_dcadsp(void)
Definition: dcadsp.c:78
void checkasm_check_synth_filter(void)
Definition: synth_filter.c:44
int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps, unsigned max_ulp, unsigned len)
Definition: checkasm.c:238
#define AV_CPU_FLAG_SSE2
PIV SSE2 functions.
Definition: cpu.h:33
uint32_t av_get_random_seed(void)
Get random data.
Definition: random_seed.c:95
void checkasm_fail_func(const char *msg,...)
Definition: checkasm.c:590
void checkasm_check_bswapdsp(void)
Definition: bswapdsp.c:59
static void balance_tree(CheckasmFunc **root)
Definition: checkasm.c:409
static void print_cpu_name(void)
Definition: checkasm.c:470
uint8_t color
Definition: checkasm.c:156