FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/checkasm.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 199 348 57.2%
Functions: 28 42 66.7%
Branches: 124 316 39.2%
Line Branch Exec Source
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 * Copyright © 2018, VideoLAN and dav1d authors
23 * Copyright © 2018, Two Orioles, LLC
24 * All rights reserved.
25 *
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions are met:
28 *
29 * 1. Redistributions of source code must retain the above copyright notice, this
30 * list of conditions and the following disclaimer.
31 *
32 * 2. Redistributions in binary form must reproduce the above copyright notice,
33 * this list of conditions and the following disclaimer in the documentation
34 * and/or other materials provided with the distribution.
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
37 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
38 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
40 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
41 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
45 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
46 */
47
48 #include "config.h"
49 #include "config_components.h"
50
51 #ifndef _GNU_SOURCE
52 # define _GNU_SOURCE // for syscall (performance monitoring API), strsignal()
53 #endif
54
55 #include <signal.h>
56 #include <stdarg.h>
57 #include <stdio.h>
58 #include <stdlib.h>
59 #include <string.h>
60 #include "checkasm.h"
61 #include "libavutil/common.h"
62 #include "libavutil/cpu.h"
63 #include "libavutil/intfloat.h"
64 #include "libavutil/random_seed.h"
65
66 #if HAVE_IO_H
67 #include <io.h>
68 #endif
69 #if HAVE_PRCTL
70 #include <sys/prctl.h>
71 #endif
72
73 #if defined(_WIN32) && !defined(SIGBUS)
74 /* non-standard, use the same value as mingw-w64 */
75 #define SIGBUS 10
76 #endif
77
78 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
79 #include <windows.h>
80 #define COLOR_RED FOREGROUND_RED
81 #define COLOR_GREEN FOREGROUND_GREEN
82 #define COLOR_YELLOW (FOREGROUND_RED|FOREGROUND_GREEN)
83 #else
84 #define COLOR_RED 1
85 #define COLOR_GREEN 2
86 #define COLOR_YELLOW 3
87 #endif
88
89 #if HAVE_UNISTD_H
90 #include <unistd.h>
91 #endif
92
93 #if !HAVE_ISATTY
94 #define isatty(fd) 1
95 #endif
96
97 #if ARCH_AARCH64
98 #include "libavutil/aarch64/cpu.h"
99 #elif ARCH_RISCV
100 #include "libavutil/riscv/cpu.h"
101 #endif
102
103 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
104 #include "libavutil/arm/cpu.h"
105
106 void (*checkasm_checked_call)(void *func, int dummy, ...) = checkasm_checked_call_novfp;
107 #endif
108
109 /* Trade-off between speed and accuracy */
110 uint64_t bench_runs = 1U << 10;
111
112 /* List of tests to invoke */
113 static const struct {
114 const char *name;
115 void (*func)(void);
116 } tests[] = {
117 #if CONFIG_AVCODEC
118 #if CONFIG_AAC_DECODER
119 { "aacpsdsp", checkasm_check_aacpsdsp },
120 { "sbrdsp", checkasm_check_sbrdsp },
121 #endif
122 #if CONFIG_AAC_ENCODER
123 { "aacencdsp", checkasm_check_aacencdsp },
124 #endif
125 #if CONFIG_AC3DSP
126 { "ac3dsp", checkasm_check_ac3dsp },
127 #endif
128 #if CONFIG_ALAC_DECODER
129 { "alacdsp", checkasm_check_alacdsp },
130 #endif
131 #if CONFIG_AUDIODSP
132 { "audiodsp", checkasm_check_audiodsp },
133 #endif
134 #if CONFIG_BLOCKDSP
135 { "blockdsp", checkasm_check_blockdsp },
136 #endif
137 #if CONFIG_BSWAPDSP
138 { "bswapdsp", checkasm_check_bswapdsp },
139 #endif
140 #if CONFIG_DCA_DECODER
141 { "synth_filter", checkasm_check_synth_filter },
142 #endif
143 #if CONFIG_DIRAC_DECODER
144 { "diracdsp", checkasm_check_diracdsp },
145 #endif
146 #if CONFIG_EXR_DECODER
147 { "exrdsp", checkasm_check_exrdsp },
148 #endif
149 #if CONFIG_FDCTDSP
150 { "fdctdsp", checkasm_check_fdctdsp },
151 #endif
152 #if CONFIG_FLAC_DECODER
153 { "flacdsp", checkasm_check_flacdsp },
154 #endif
155 #if CONFIG_FMTCONVERT
156 { "fmtconvert", checkasm_check_fmtconvert },
157 #endif
158 #if CONFIG_G722DSP
159 { "g722dsp", checkasm_check_g722dsp },
160 #endif
161 #if CONFIG_H263DSP
162 { "h263dsp", checkasm_check_h263dsp },
163 #endif
164 #if CONFIG_H264CHROMA
165 { "h264chroma", checkasm_check_h264chroma },
166 #endif
167 #if CONFIG_H264DSP
168 { "h264dsp", checkasm_check_h264dsp },
169 #endif
170 #if CONFIG_H264PRED
171 { "h264pred", checkasm_check_h264pred },
172 #endif
173 #if CONFIG_H264QPEL
174 { "h264qpel", checkasm_check_h264qpel },
175 #endif
176 #if CONFIG_HEVC_DECODER
177 { "hevc_add_res", checkasm_check_hevc_add_res },
178 { "hevc_deblock", checkasm_check_hevc_deblock },
179 { "hevc_idct", checkasm_check_hevc_idct },
180 { "hevc_pel", checkasm_check_hevc_pel },
181 { "hevc_sao", checkasm_check_hevc_sao },
182 #endif
183 #if CONFIG_HUFFYUV_DECODER
184 { "huffyuvdsp", checkasm_check_huffyuvdsp },
185 #endif
186 #if CONFIG_IDCTDSP
187 { "idctdsp", checkasm_check_idctdsp },
188 #endif
189 #if CONFIG_JPEG2000_DECODER
190 { "jpeg2000dsp", checkasm_check_jpeg2000dsp },
191 #endif
192 #if CONFIG_LLAUDDSP
193 { "llauddsp", checkasm_check_llauddsp },
194 #endif
195 #if CONFIG_HUFFYUVDSP
196 { "llviddsp", checkasm_check_llviddsp },
197 #endif
198 #if CONFIG_LLVIDENCDSP
199 { "llviddspenc", checkasm_check_llviddspenc },
200 #endif
201 #if CONFIG_LPC
202 { "lpc", checkasm_check_lpc },
203 #endif
204 #if CONFIG_ME_CMP
205 { "motion", checkasm_check_motion },
206 #endif
207 #if CONFIG_MPEGVIDEOENC
208 { "mpegvideoencdsp", checkasm_check_mpegvideoencdsp },
209 #endif
210 #if CONFIG_OPUS_DECODER
211 { "opusdsp", checkasm_check_opusdsp },
212 #endif
213 #if CONFIG_PIXBLOCKDSP
214 { "pixblockdsp", checkasm_check_pixblockdsp },
215 #endif
216 #if CONFIG_RV34DSP
217 { "rv34dsp", checkasm_check_rv34dsp },
218 #endif
219 #if CONFIG_RV40_DECODER
220 { "rv40dsp", checkasm_check_rv40dsp },
221 #endif
222 #if CONFIG_SVQ1_ENCODER
223 { "svq1enc", checkasm_check_svq1enc },
224 #endif
225 #if CONFIG_TAK_DECODER
226 { "takdsp", checkasm_check_takdsp },
227 #endif
228 #if CONFIG_UTVIDEO_DECODER
229 { "utvideodsp", checkasm_check_utvideodsp },
230 #endif
231 #if CONFIG_V210_DECODER
232 { "v210dec", checkasm_check_v210dec },
233 #endif
234 #if CONFIG_V210_ENCODER
235 { "v210enc", checkasm_check_v210enc },
236 #endif
237 #if CONFIG_VC1DSP
238 { "vc1dsp", checkasm_check_vc1dsp },
239 #endif
240 #if CONFIG_VP8DSP
241 { "vp8dsp", checkasm_check_vp8dsp },
242 #endif
243 #if CONFIG_VP9_DECODER
244 { "vp9dsp", checkasm_check_vp9dsp },
245 #endif
246 #if CONFIG_VIDEODSP
247 { "videodsp", checkasm_check_videodsp },
248 #endif
249 #if CONFIG_VORBIS_DECODER
250 { "vorbisdsp", checkasm_check_vorbisdsp },
251 #endif
252 #if CONFIG_VVC_DECODER
253 { "vvc_alf", checkasm_check_vvc_alf },
254 { "vvc_mc", checkasm_check_vvc_mc },
255 #endif
256 #endif
257 #if CONFIG_AVFILTER
258 #if CONFIG_AFIR_FILTER
259 { "af_afir", checkasm_check_afir },
260 #endif
261 #if CONFIG_BLEND_FILTER
262 { "vf_blend", checkasm_check_blend },
263 #endif
264 #if CONFIG_BWDIF_FILTER
265 { "vf_bwdif", checkasm_check_vf_bwdif },
266 #endif
267 #if CONFIG_COLORSPACE_FILTER
268 { "vf_colorspace", checkasm_check_colorspace },
269 #endif
270 #if CONFIG_EQ_FILTER
271 { "vf_eq", checkasm_check_vf_eq },
272 #endif
273 #if CONFIG_GBLUR_FILTER
274 { "vf_gblur", checkasm_check_vf_gblur },
275 #endif
276 #if CONFIG_HFLIP_FILTER
277 { "vf_hflip", checkasm_check_vf_hflip },
278 #endif
279 #if CONFIG_NLMEANS_FILTER
280 { "vf_nlmeans", checkasm_check_nlmeans },
281 #endif
282 #if CONFIG_THRESHOLD_FILTER
283 { "vf_threshold", checkasm_check_vf_threshold },
284 #endif
285 #if CONFIG_SOBEL_FILTER
286 { "vf_sobel", checkasm_check_vf_sobel },
287 #endif
288 #endif
289 #if CONFIG_SWSCALE
290 { "sw_gbrp", checkasm_check_sw_gbrp },
291 { "sw_range_convert", checkasm_check_sw_range_convert },
292 { "sw_rgb", checkasm_check_sw_rgb },
293 { "sw_scale", checkasm_check_sw_scale },
294 { "sw_yuv2rgb", checkasm_check_sw_yuv2rgb },
295 { "sw_yuv2yuv", checkasm_check_sw_yuv2yuv },
296 #endif
297 #if CONFIG_AVUTIL
298 { "fixed_dsp", checkasm_check_fixed_dsp },
299 { "float_dsp", checkasm_check_float_dsp },
300 { "lls", checkasm_check_lls },
301 { "av_tx", checkasm_check_av_tx },
302 #endif
303 { NULL }
304 };
305
306 /* List of cpu flags to check */
307 static const struct {
308 const char *name;
309 const char *suffix;
310 int flag;
311 } cpus[] = {
312 #if ARCH_AARCH64
313 { "ARMV8", "armv8", AV_CPU_FLAG_ARMV8 },
314 { "NEON", "neon", AV_CPU_FLAG_NEON },
315 { "DOTPROD", "dotprod", AV_CPU_FLAG_DOTPROD },
316 { "I8MM", "i8mm", AV_CPU_FLAG_I8MM },
317 { "SVE", "sve", AV_CPU_FLAG_SVE },
318 { "SVE2", "sve2", AV_CPU_FLAG_SVE2 },
319 #elif ARCH_ARM
320 { "ARMV5TE", "armv5te", AV_CPU_FLAG_ARMV5TE },
321 { "ARMV6", "armv6", AV_CPU_FLAG_ARMV6 },
322 { "ARMV6T2", "armv6t2", AV_CPU_FLAG_ARMV6T2 },
323 { "VFP", "vfp", AV_CPU_FLAG_VFP },
324 { "VFP_VM", "vfp_vm", AV_CPU_FLAG_VFP_VM },
325 { "VFPV3", "vfp3", AV_CPU_FLAG_VFPV3 },
326 { "NEON", "neon", AV_CPU_FLAG_NEON },
327 #elif ARCH_PPC
328 { "ALTIVEC", "altivec", AV_CPU_FLAG_ALTIVEC },
329 { "VSX", "vsx", AV_CPU_FLAG_VSX },
330 { "POWER8", "power8", AV_CPU_FLAG_POWER8 },
331 #elif ARCH_RISCV
332 { "RVI", "rvi", AV_CPU_FLAG_RVI },
333 { "misaligned", "misaligned", AV_CPU_FLAG_RV_MISALIGNED },
334 { "RV_zbb", "rvb_b", AV_CPU_FLAG_RVB_BASIC },
335 { "RVB", "rvb", AV_CPU_FLAG_RVB },
336 { "RV_zve32x","rvv_i32", AV_CPU_FLAG_RVV_I32 },
337 { "RV_zve32f","rvv_f32", AV_CPU_FLAG_RVV_F32 },
338 { "RV_zve64x","rvv_i64", AV_CPU_FLAG_RVV_I64 },
339 { "RV_zve64d","rvv_f64", AV_CPU_FLAG_RVV_F64 },
340 { "RV_zvbb", "rv_zvbb", AV_CPU_FLAG_RV_ZVBB },
341 #elif ARCH_MIPS
342 { "MMI", "mmi", AV_CPU_FLAG_MMI },
343 { "MSA", "msa", AV_CPU_FLAG_MSA },
344 #elif ARCH_X86
345 { "MMX", "mmx", AV_CPU_FLAG_MMX|AV_CPU_FLAG_CMOV },
346 { "MMXEXT", "mmxext", AV_CPU_FLAG_MMXEXT },
347 { "3DNOW", "3dnow", AV_CPU_FLAG_3DNOW },
348 { "3DNOWEXT", "3dnowext", AV_CPU_FLAG_3DNOWEXT },
349 { "SSE", "sse", AV_CPU_FLAG_SSE },
350 { "SSE2", "sse2", AV_CPU_FLAG_SSE2|AV_CPU_FLAG_SSE2SLOW },
351 { "SSE3", "sse3", AV_CPU_FLAG_SSE3|AV_CPU_FLAG_SSE3SLOW },
352 { "SSSE3", "ssse3", AV_CPU_FLAG_SSSE3|AV_CPU_FLAG_ATOM },
353 { "SSE4.1", "sse4", AV_CPU_FLAG_SSE4 },
354 { "SSE4.2", "sse42", AV_CPU_FLAG_SSE42 },
355 { "AES-NI", "aesni", AV_CPU_FLAG_AESNI },
356 { "AVX", "avx", AV_CPU_FLAG_AVX },
357 { "XOP", "xop", AV_CPU_FLAG_XOP },
358 { "FMA3", "fma3", AV_CPU_FLAG_FMA3 },
359 { "FMA4", "fma4", AV_CPU_FLAG_FMA4 },
360 { "AVX2", "avx2", AV_CPU_FLAG_AVX2 },
361 { "AVX-512", "avx512", AV_CPU_FLAG_AVX512 },
362 { "AVX-512ICL", "avx512icl", AV_CPU_FLAG_AVX512ICL },
363 #elif ARCH_LOONGARCH
364 { "LSX", "lsx", AV_CPU_FLAG_LSX },
365 { "LASX", "lasx", AV_CPU_FLAG_LASX },
366 #endif
367 { NULL }
368 };
369
370 typedef struct CheckasmFuncVersion {
371 struct CheckasmFuncVersion *next;
372 void *func;
373 int ok;
374 int cpu;
375 CheckasmPerf perf;
376 } CheckasmFuncVersion;
377
378 /* Binary search tree node */
379 typedef struct CheckasmFunc {
380 struct CheckasmFunc *child[2];
381 CheckasmFuncVersion versions;
382 uint8_t color; /* 0 = red, 1 = black */
383 char name[1];
384 } CheckasmFunc;
385
386 /* Internal state */
387 static struct {
388 CheckasmFunc *funcs;
389 CheckasmFunc *current_func;
390 CheckasmFuncVersion *current_func_ver;
391 const char *current_test_name;
392 const char *bench_pattern;
393 int bench_pattern_len;
394 int num_checked;
395 int num_failed;
396
397 /* perf */
398 int nop_time;
399 int sysfd;
400
401 int cpu_flag;
402 const char *cpu_flag_name;
403 const char *test_pattern;
404 int verbose;
405 int csv;
406 int tsv;
407 volatile sig_atomic_t catch_signals;
408 } state;
409
410 /* PRNG state */
411 AVLFG checkasm_lfg;
412
413 /* float compare support code */
414 4493960 static int is_negative(union av_intfloat32 u)
415 {
416 4493960 return u.i >> 31;
417 }
418
419 2246980 int float_near_ulp(float a, float b, unsigned max_ulp)
420 {
421 union av_intfloat32 x, y;
422
423 2246980 x.f = a;
424 2246980 y.f = b;
425
426
1/2
✗ Branch 2 not taken.
✓ Branch 3 taken 2246980 times.
 2246980 if (is_negative(x) != is_negative(y)) {
427 // handle -0.0 == +0.0
428 ✗ return a == b;
429 }
430
431
1/2
✓ Branch 0 taken 2246980 times.
✗ Branch 1 not taken.
 2246980 if (llabs((int64_t)x.i - y.i) <= max_ulp)
432 2246980 return 1;
433
434 ✗ return 0;
435 }
436
437 4379 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
438 unsigned len)
439 {
440 unsigned i;
441
442
2/2
✓ Branch 0 taken 2241860 times.
✓ Branch 1 taken 4379 times.
 2246239 for (i = 0; i < len; i++) {
443
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2241860 times.
 2241860 if (!float_near_ulp(a[i], b[i], max_ulp))
444 ✗ return 0;
445 }
446 4379 return 1;
447 }
448
449 882133 int float_near_abs_eps(float a, float b, float eps)
450 {
451 882133 float abs_diff = fabsf(a - b);
452
1/2
✓ Branch 0 taken 882133 times.
✗ Branch 1 not taken.
 882133 if (abs_diff < eps)
453 882133 return 1;
454
455 ✗ fprintf(stderr, "test failed comparing %g with %g (abs diff=%g with EPS=%g)\n", a, b, abs_diff, eps);
456
457 ✗ return 0;
458 }
459
460 189 int float_near_abs_eps_array(const float *a, const float *b, float eps,
461 unsigned len)
462 {
463 unsigned i;
464
465
2/2
✓ Branch 0 taken 872138 times.
✓ Branch 1 taken 189 times.
 872327 for (i = 0; i < len; i++) {
466
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 872138 times.
 872138 if (!float_near_abs_eps(a[i], b[i], eps))
467 ✗ return 0;
468 }
469 189 return 1;
470 }
471
472 5120 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp)
473 {
474
1/4
✗ Branch 1 not taken.
✓ Branch 2 taken 5120 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 5120 return float_near_ulp(a, b, max_ulp) || float_near_abs_eps(a, b, eps);
475 }
476
477 ✗ int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
478 unsigned max_ulp, unsigned len)
479 {
480 unsigned i;
481
482 ✗ for (i = 0; i < len; i++) {
483 ✗ if (!float_near_abs_eps_ulp(a[i], b[i], eps, max_ulp))
484 ✗ return 0;
485 }
486 ✗ return 1;
487 }
488
489 69731 int double_near_abs_eps(double a, double b, double eps)
490 {
491 69731 double abs_diff = fabs(a - b);
492
493 69731 return abs_diff < eps;
494 }
495
496 11 int double_near_abs_eps_array(const double *a, const double *b, double eps,
497 unsigned len)
498 {
499 unsigned i;
500
501
2/2
✓ Branch 0 taken 41068 times.
✓ Branch 1 taken 11 times.
 41079 for (i = 0; i < len; i++) {
502
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 41068 times.
 41068 if (!double_near_abs_eps(a[i], b[i], eps))
503 ✗ return 0;
504 }
505 11 return 1;
506 }
507
508 /* Print colored text to stderr if the terminal supports it */
509 576 static void color_printf(int color, const char *fmt, ...)
510 {
511 static int use_color = -1;
512 va_list arg;
513
514 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
515 static HANDLE con;
516 static WORD org_attributes;
517
518 if (use_color < 0) {
519 CONSOLE_SCREEN_BUFFER_INFO con_info;
520 con = GetStdHandle(STD_ERROR_HANDLE);
521 if (con && con != INVALID_HANDLE_VALUE && GetConsoleScreenBufferInfo(con, &con_info)) {
522 org_attributes = con_info.wAttributes;
523 use_color = 1;
524 } else
525 use_color = 0;
526 }
527 if (use_color)
528 SetConsoleTextAttribute(con, (org_attributes & 0xfff0) | (color & 0x0f));
529 #else
530
2/2
✓ Branch 0 taken 67 times.
✓ Branch 1 taken 509 times.
 576 if (use_color < 0) {
531 67 const char *term = getenv("TERM");
532
3/6
✓ Branch 0 taken 67 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 67 times.
✗ Branch 3 not taken.
✗ Branch 5 not taken.
✓ Branch 6 taken 67 times.
 67 use_color = term && strcmp(term, "dumb") && isatty(2);
533 }
534
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 576 times.
 576 if (use_color)
535 ✗ fprintf(stderr, "\x1b[%d;3%dm", (color & 0x08) >> 3, color & 0x07);
536 #endif
537
538 576 va_start(arg, fmt);
539 576 vfprintf(stderr, fmt, arg);
540 576 va_end(arg);
541
542
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 576 times.
 576 if (use_color) {
543 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
544 SetConsoleTextAttribute(con, org_attributes);
545 #else
546 ✗ fprintf(stderr, "\x1b[0m");
547 #endif
548 }
549 576 }
550
551 /* Deallocate a tree */
552 20880 static void destroy_func_tree(CheckasmFunc *f)
553 {
554
2/2
✓ Branch 0 taken 10405 times.
✓ Branch 1 taken 10475 times.
 20880 if (f) {
555 10405 CheckasmFuncVersion *v = f->versions.next;
556
2/2
✓ Branch 0 taken 13454 times.
✓ Branch 1 taken 10405 times.
 23859 while (v) {
557 13454 CheckasmFuncVersion *next = v->next;
558 13454 free(v);
559 13454 v = next;
560 }
561
562 10405 destroy_func_tree(f->child[0]);
563 10405 destroy_func_tree(f->child[1]);
564 10405 free(f);
565 }
566 20880 }
567
568 /* Allocate a zero-initialized block, clean up and exit on failure */
569 23859 static void *checkasm_malloc(size_t size)
570 {
571 23859 void *ptr = calloc(1, size);
572
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 23859 times.
 23859 if (!ptr) {
573 ✗ fprintf(stderr, "checkasm: malloc failed\n");
574 ✗ destroy_func_tree(state.funcs);
575 ✗ exit(1);
576 }
577 23859 return ptr;
578 }
579
580 /* Get the suffix of the specified cpu flag */
581 ✗ static const char *cpu_suffix(int cpu)
582 {
583 ✗ int i = FF_ARRAY_ELEMS(cpus);
584
585 ✗ while (--i >= 0)
586 ✗ if (cpu & cpus[i].flag)
587 ✗ return cpus[i].suffix;
588
589 ✗ return "c";
590 }
591
592 ✗ static int cmp_nop(const void *a, const void *b)
593 {
594 ✗ return *(const uint16_t*)a - *(const uint16_t*)b;
595 }
596
597 /* Measure the overhead of the timing code (in decicycles) */
598 ✗ static int measure_nop_time(void)
599 {
600 uint16_t nops[10000];
601 ✗ int i, nop_sum = 0;
602 ✗ av_unused const int sysfd = state.sysfd;
603
604 ✗ uint64_t t = 0;
605 ✗ for (i = 0; i < 10000; i++) {
606 ✗ PERF_START(t);
607 ✗ PERF_STOP(t);
608 ✗ nops[i] = t;
609 }
610
611 ✗ qsort(nops, 10000, sizeof(uint16_t), cmp_nop);
612 ✗ for (i = 2500; i < 7500; i++)
613 ✗ nop_sum += nops[i];
614
615 ✗ return nop_sum / 500;
616 }
617
618 ✗ static inline double avg_cycles_per_call(const CheckasmPerf *const p)
619 {
620 ✗ if (p->iterations) {
621 ✗ const double cycles = (double)(10 * p->cycles) / p->iterations - state.nop_time;
622 ✗ if (cycles > 0.0)
623 ✗ return cycles / 4.0; /* 4 calls per iteration */
624 }
625 ✗ return 0.0;
626 }
627
628 /* Print benchmark results */
629 ✗ static void print_benchs(CheckasmFunc *f)
630 {
631 ✗ if (f) {
632 ✗ print_benchs(f->child[0]);
633
634 /* Only print functions with at least one assembly version */
635 ✗ if (f->versions.cpu || f->versions.next) {
636 ✗ CheckasmFuncVersion *v = &f->versions;
637 ✗ const CheckasmPerf *p = &v->perf;
638 ✗ const double baseline = avg_cycles_per_call(p);
639 double decicycles;
640 do {
641 ✗ if (p->iterations) {
642 ✗ p = &v->perf;
643 ✗ decicycles = avg_cycles_per_call(p);
644 ✗ if (state.csv || state.tsv) {
645 ✗ const char sep = state.csv ? ',' : '\t';
646 ✗ printf("%s%c%s%c%.1f\n", f->name, sep,
647 cpu_suffix(v->cpu), sep,
648 decicycles / 10.0);
649 } else {
650 ✗ const int pad_length = 10 + 50 -
651 ✗ printf("%s_%s:", f->name, cpu_suffix(v->cpu));
652 ✗ const double ratio = decicycles ?
653 ✗ baseline / decicycles : 0.0;
654 ✗ printf("%*.1f (%5.2fx)\n", FFMAX(pad_length, 0),
655 decicycles / 10.0, ratio);
656 }
657 }
658 ✗ } while ((v = v->next));
659 }
660
661 ✗ print_benchs(f->child[1]);
662 }
663 ✗ }
664
665 /* ASCIIbetical sort except preserving natural order for numbers */
666 1348075 static int cmp_func_names(const char *a, const char *b)
667 {
668 1348075 const char *start = a;
669 int ascii_diff, digit_diff;
670
671
4/4
✓ Branch 0 taken 23253724 times.
✓ Branch 1 taken 1216585 times.
✓ Branch 2 taken 23122234 times.
✓ Branch 3 taken 131490 times.
 24470309 for (; !(ascii_diff = *(const unsigned char*)a - *(const unsigned char*)b) && *a; a++, b++);
672
4/4
✓ Branch 0 taken 1363066 times.
✓ Branch 1 taken 1130845 times.
✓ Branch 2 taken 1145836 times.
✓ Branch 3 taken 217230 times.
 2493911 for (; av_isdigit(*a) && av_isdigit(*b); a++, b++);
673
674
6/6
✓ Branch 0 taken 1294284 times.
✓ Branch 1 taken 53791 times.
✓ Branch 2 taken 915729 times.
✓ Branch 3 taken 378555 times.
✓ Branch 4 taken 328201 times.
✓ Branch 5 taken 587528 times.
 1348075 if (a > start && av_isdigit(a[-1]) && (digit_diff = av_isdigit(*a) - av_isdigit(*b)))
675 328201 return digit_diff;
676
677 1019874 return ascii_diff;
678 }
679
680 /* Perform a tree rotation in the specified direction and return the new root */
681 9761 static CheckasmFunc *rotate_tree(CheckasmFunc *f, int dir)
682 {
683 9761 CheckasmFunc *r = f->child[dir^1];
684 9761 f->child[dir^1] = r->child[dir];
685 9761 r->child[dir] = f;
686 9761 r->color = f->color;
687 9761 f->color = 0;
688 9761 return r;
689 }
690
691 #define is_red(f) ((f) && !(f)->color)
692
693 /* Balance a left-leaning red-black tree at the specified node */
694 96497 static void balance_tree(CheckasmFunc **root)
695 {
696 96497 CheckasmFunc *f = *root;
697
698
8/8
✓ Branch 0 taken 91507 times.
✓ Branch 1 taken 4990 times.
✓ Branch 2 taken 37287 times.
✓ Branch 3 taken 54220 times.
✓ Branch 4 taken 33868 times.
✓ Branch 5 taken 3419 times.
✓ Branch 6 taken 7390 times.
✓ Branch 7 taken 26478 times.
 96497 if (is_red(f->child[0]) && is_red(f->child[1])) {
699 7390 f->color ^= 1;
700 7390 f->child[0]->color = f->child[1]->color = 1;
701 }
702
703
7/8
✓ Branch 0 taken 91507 times.
✓ Branch 1 taken 4990 times.
✓ Branch 2 taken 61610 times.
✓ Branch 3 taken 29897 times.
✓ Branch 4 taken 66600 times.
✗ Branch 5 not taken.
✓ Branch 6 taken 7372 times.
✓ Branch 7 taken 59228 times.
 96497 if (!is_red(f->child[0]) && is_red(f->child[1]))
704 7372 *root = rotate_tree(f, 0); /* Rotate left */
705
7/8
✓ Branch 0 taken 89125 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 29897 times.
✓ Branch 3 taken 59228 times.
✓ Branch 4 taken 27615 times.
✓ Branch 5 taken 2282 times.
✓ Branch 6 taken 2389 times.
✓ Branch 7 taken 25226 times.
 89125 else if (is_red(f->child[0]) && is_red(f->child[0]->child[0]))
706 2389 *root = rotate_tree(f, 1); /* Rotate right */
707 96497 }
708
709 /* Get a node with the specified name, creating it if it doesn't exist */
710 1358480 static CheckasmFunc *get_func(CheckasmFunc **root, const char *name)
711 {
712 1358480 CheckasmFunc *f = *root;
713
714
2/2
✓ Branch 0 taken 1348075 times.
✓ Branch 1 taken 10405 times.
 1358480 if (f) {
715 /* Search the tree for a matching node */
716 1348075 int cmp = cmp_func_names(name, f->name);
717
2/2
✓ Branch 0 taken 1216585 times.
✓ Branch 1 taken 131490 times.
 1348075 if (cmp) {
718 1216585 f = get_func(&f->child[cmp > 0], name);
719
720 /* Rebalance the tree on the way up if a new node was inserted */
721
2/2
✓ Branch 0 taken 96497 times.
✓ Branch 1 taken 1120088 times.
 1216585 if (!f->versions.func)
722 96497 balance_tree(root);
723 }
724 } else {
725 /* Allocate and insert a new node into the tree */
726 10405 int name_length = strlen(name);
727 10405 f = *root = checkasm_malloc(sizeof(CheckasmFunc) + name_length);
728 10405 memcpy(f->name, name, name_length + 1);
729 }
730
731 1358480 return f;
732 }
733
734 checkasm_context checkasm_context_buf;
735
736 /* Crash handling: attempt to catch crashes and handle them
737 * gracefully instead of just aborting abruptly. */
738 #ifdef _WIN32
739 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
740 static LONG NTAPI signal_handler(EXCEPTION_POINTERS *e) {
741 int s;
742
743 if (!state.catch_signals)
744 return EXCEPTION_CONTINUE_SEARCH;
745
746 switch (e->ExceptionRecord->ExceptionCode) {
747 case EXCEPTION_FLT_DIVIDE_BY_ZERO:
748 case EXCEPTION_INT_DIVIDE_BY_ZERO:
749 s = SIGFPE;
750 break;
751 case EXCEPTION_ILLEGAL_INSTRUCTION:
752 case EXCEPTION_PRIV_INSTRUCTION:
753 s = SIGILL;
754 break;
755 case EXCEPTION_ACCESS_VIOLATION:
756 case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
757 case EXCEPTION_DATATYPE_MISALIGNMENT:
758 case EXCEPTION_STACK_OVERFLOW:
759 s = SIGSEGV;
760 break;
761 case EXCEPTION_IN_PAGE_ERROR:
762 s = SIGBUS;
763 break;
764 default:
765 return EXCEPTION_CONTINUE_SEARCH;
766 }
767 state.catch_signals = 0;
768 checkasm_load_context(s);
769 return EXCEPTION_CONTINUE_EXECUTION; /* never reached, but shuts up gcc */
770 }
771 #endif
772 #else
773 static void signal_handler(int s);
774
775 static const struct sigaction signal_handler_act = {
776 .sa_handler = signal_handler,
777 .sa_flags = SA_RESETHAND,
778 };
779
780 ✗ static void signal_handler(int s) {
781 ✗ if (state.catch_signals) {
782 ✗ state.catch_signals = 0;
783 ✗ sigaction(s, &signal_handler_act, NULL);
784 ✗ checkasm_load_context(s);
785 }
786 ✗ }
787 #endif
788
789 /* Compares a string with a wildcard pattern. */
790 63700 static int wildstrcmp(const char *str, const char *pattern)
791 {
792 63700 const char *wild = strchr(pattern, '*');
793
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 63700 times.
 63700 if (wild) {
794 ✗ const size_t len = wild - pattern;
795 ✗ if (strncmp(str, pattern, len)) return 1;
796 ✗ while (*++wild == '*');
797 ✗ if (!*wild) return 0;
798 ✗ str += len;
799 ✗ while (*str && wildstrcmp(str, wild)) str++;
800 ✗ return !*str;
801 }
802 63700 return strcmp(str, pattern);
803 }
804
805 /* Perform tests and benchmarks for the specified cpu flag if supported by the host */
806 1330 static void check_cpu_flag(const char *name, int flag)
807 {
808 1330 int old_cpu_flag = state.cpu_flag;
809
810 1330 flag |= old_cpu_flag;
811 1330 av_force_cpu_flags(-1);
812 1330 state.cpu_flag = flag & av_get_cpu_flags();
813 1330 av_force_cpu_flags(state.cpu_flag);
814
815
4/4
✓ Branch 0 taken 1260 times.
✓ Branch 1 taken 70 times.
✓ Branch 2 taken 840 times.
✓ Branch 3 taken 420 times.
 1330 if (!flag || state.cpu_flag != old_cpu_flag) {
816 int i;
817
818 910 state.cpu_flag_name = name;
819
2/2
✓ Branch 0 taken 63700 times.
✓ Branch 1 taken 910 times.
 64610 for (i = 0; tests[i].func; i++) {
820
3/4
✓ Branch 0 taken 63700 times.
✗ Branch 1 not taken.
✓ Branch 3 taken 62790 times.
✓ Branch 4 taken 910 times.
 63700 if (state.test_pattern && wildstrcmp(tests[i].name, state.test_pattern))
821 62790 continue;
822 910 state.current_test_name = tests[i].name;
823 910 tests[i].func();
824 }
825 }
826 1330 }
827
828 /* Print the name of the current CPU flag, but only do it once */
829 381 static void print_cpu_name(void)
830 {
831
2/2
✓ Branch 0 taken 195 times.
✓ Branch 1 taken 186 times.
 381 if (state.cpu_flag_name) {
832 195 color_printf(COLOR_YELLOW, "%s:\n", state.cpu_flag_name);
833 195 state.cpu_flag_name = NULL;
834 }
835 381 }
836
837 #if CONFIG_LINUX_PERF
838 static int bench_init_linux(void)
839 {
840 struct perf_event_attr attr = {
841 .type = PERF_TYPE_HARDWARE,
842 .size = sizeof(struct perf_event_attr),
843 .config = PERF_COUNT_HW_CPU_CYCLES,
844 .disabled = 1, // start counting only on demand
845 .exclude_kernel = 1,
846 .exclude_hv = 1,
847 #if !ARCH_X86
848 .exclude_guest = 1,
849 #endif
850 };
851
852 fprintf(stderr, "benchmarking with Linux Perf Monitoring API\n");
853
854 state.sysfd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0);
855 if (state.sysfd == -1) {
856 perror("perf_event_open");
857 return -1;
858 }
859 return 0;
860 }
861 #elif CONFIG_MACOS_KPERF
862 static int bench_init_kperf(void)
863 {
864 ff_kperf_init();
865 return 0;
866 }
867 #else
868 ✗ static int bench_init_ffmpeg(void)
869 {
870 #ifdef AV_READ_TIME
871 ✗ if (!checkasm_save_context()) {
872 ✗ checkasm_set_signal_handler_state(1);
873 ✗ AV_READ_TIME();
874 ✗ checkasm_set_signal_handler_state(0);
875 } else {
876 ✗ fprintf(stderr, "checkasm: unable to execute platform specific timer\n");
877 ✗ return -1;
878 }
879 ✗ fprintf(stderr, "benchmarking with native FFmpeg timers\n");
880 ✗ return 0;
881 #else
882 fprintf(stderr, "checkasm: --bench is not supported on your system\n");
883 return -1;
884 #endif
885 }
886 #endif
887
888 ✗ static int bench_init(void)
889 {
890 #if CONFIG_LINUX_PERF
891 int ret = bench_init_linux();
892 #elif CONFIG_MACOS_KPERF
893 int ret = bench_init_kperf();
894 #else
895 ✗ int ret = bench_init_ffmpeg();
896 #endif
897 ✗ if (ret < 0)
898 ✗ return ret;
899
900 ✗ state.nop_time = measure_nop_time();
901 ✗ fprintf(stderr, "nop: %d.%d\n", state.nop_time/10, state.nop_time%10);
902 ✗ return 0;
903 }
904
905 70 static void bench_uninit(void)
906 {
907 #if CONFIG_LINUX_PERF
908 close(state.sysfd);
909 #endif
910 70 }
911
912 ✗ static int usage(const char *path)
913 {
914 ✗ fprintf(stderr,
915 "Usage: %s [options...] [seed]\n"
916 " --test=<pattern> Run specific test.\n"
917 " --bench Run benchmark.\n"
918 " --csv, --tsv Output results in rows of comma or tab separated values.\n"
919 " --runs=<ptwo> Manual number of benchmark iterations to run 2**<ptwo>.\n"
920 " --verbose Increase verbosity.\n",
921 path);
922 ✗ return 1;
923 }
924
925 70 int main(int argc, char *argv[])
926 {
927 70 unsigned int seed = av_get_random_seed();
928 70 int i, ret = 0;
929 70 char arch_info_buf[50] = "";
930
931 #ifdef _WIN32
932 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
933 AddVectoredExceptionHandler(0, signal_handler);
934 #endif
935 #else
936 70 sigaction(SIGBUS, &signal_handler_act, NULL);
937 70 sigaction(SIGFPE, &signal_handler_act, NULL);
938 70 sigaction(SIGILL, &signal_handler_act, NULL);
939 70 sigaction(SIGSEGV, &signal_handler_act, NULL);
940 #endif
941 #if HAVE_PRCTL && defined(PR_SET_UNALIGN)
942 70 prctl(PR_SET_UNALIGN, PR_UNALIGN_SIGBUS);
943 #endif
944 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
945 if (have_vfp(av_get_cpu_flags()) || have_neon(av_get_cpu_flags()))
946 checkasm_checked_call = checkasm_checked_call_vfp;
947 #endif
948
949
2/4
✓ Branch 0 taken 70 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 70 times.
 70 if (!tests[0].func || !cpus[0].flag) {
950 ✗ fprintf(stderr, "checkasm: no tests to perform\n");
951 ✗ return 0;
952 }
953
954
2/2
✓ Branch 0 taken 70 times.
✓ Branch 1 taken 70 times.
 140 for (i = 1; i < argc; i++) {
955 70 const char *arg = argv[i];
956 unsigned long l;
957 char *end;
958
959
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
 70 if (!strncmp(arg, "--bench", 7)) {
960 ✗ if (bench_init() < 0)
961 ✗ return 1;
962 ✗ if (arg[7] == '=') {
963 ✗ state.bench_pattern = arg + 8;
964 ✗ state.bench_pattern_len = strlen(state.bench_pattern);
965 } else
966 ✗ state.bench_pattern = "*";
967
1/2
✓ Branch 0 taken 70 times.
✗ Branch 1 not taken.
 70 } else if (!strncmp(arg, "--test=", 7)) {
968 70 state.test_pattern = arg + 7;
969 ✗ } else if (!strcmp(arg, "--csv")) {
970 ✗ state.csv = 1; state.tsv = 0;
971 ✗ } else if (!strcmp(arg, "--tsv")) {
972 ✗ state.csv = 0; state.tsv = 1;
973 ✗ } else if (!strcmp(arg, "--verbose") || !strcmp(arg, "-v")) {
974 ✗ state.verbose = 1;
975 ✗ } else if (!strncmp(arg, "--runs=", 7)) {
976 ✗ l = strtoul(arg + 7, &end, 10);
977 ✗ if (*end == '\0') {
978 ✗ if (l > 30) {
979 ✗ fprintf(stderr, "checkasm: error: runs exponent must be within the range 0 <= 30\n");
980 ✗ usage(argv[0]);
981 }
982 ✗ bench_runs = 1U << l;
983 } else {
984 ✗ return usage(argv[0]);
985 }
986 ✗ } else if ((l = strtoul(arg, &end, 10)) <= UINT_MAX &&
987 ✗ *end == '\0') {
988 ✗ seed = l;
989 } else {
990 ✗ return usage(argv[0]);
991 }
992 }
993
994 #if ARCH_AARCH64 && HAVE_SVE
995 if (have_sve(av_get_cpu_flags()))
996 snprintf(arch_info_buf, sizeof(arch_info_buf),
997 "SVE %d bits, ", 8 * ff_aarch64_sve_length());
998 #elif ARCH_RISCV && HAVE_RVV
999 if (av_get_cpu_flags() & AV_CPU_FLAG_RVV_I32)
1000 snprintf(arch_info_buf, sizeof (arch_info_buf),
1001 "%zu-bit vectors, ", 8 * ff_get_rv_vlenb());
1002 #endif
1003 70 fprintf(stderr, "checkasm: %susing random seed %u\n", arch_info_buf, seed);
1004 70 av_lfg_init(&checkasm_lfg, seed);
1005
1006
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
 70 if (state.bench_pattern)
1007 ✗ fprintf(stderr, "checkasm: bench runs %" PRIu64 " (1 << %i)\n", bench_runs, av_log2(bench_runs));
1008
1009 70 check_cpu_flag(NULL, 0);
1010
2/2
✓ Branch 0 taken 1260 times.
✓ Branch 1 taken 70 times.
 1330 for (i = 0; cpus[i].flag; i++)
1011 1260 check_cpu_flag(cpus[i].name, cpus[i].flag);
1012
1013
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
 70 if (state.num_failed) {
1014 ✗ fprintf(stderr, "checkasm: %d of %d tests have failed\n", state.num_failed, state.num_checked);
1015 ✗ ret = 1;
1016 } else {
1017 70 fprintf(stderr, "checkasm: all %d tests passed\n", state.num_checked);
1018
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 70 times.
 70 if (state.bench_pattern) {
1019 ✗ print_benchs(state.funcs);
1020 }
1021 }
1022
1023 70 destroy_func_tree(state.funcs);
1024 70 bench_uninit();
1025 70 return ret;
1026 }
1027
1028 /* Decide whether or not the specified function needs to be tested and
1029 * allocate/initialize data structures if needed. Returns a pointer to a
1030 * reference function if the function should be tested, otherwise NULL */
1031 141895 void *checkasm_check_func(void *func, const char *name, ...)
1032 {
1033 char name_buf[256];
1034 141895 void *ref = func;
1035 CheckasmFuncVersion *v;
1036 int name_length;
1037 va_list arg;
1038
1039 141895 va_start(arg, name);
1040 141895 name_length = vsnprintf(name_buf, sizeof(name_buf), name, arg);
1041 141895 va_end(arg);
1042
1043
3/6
✓ Branch 0 taken 141895 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 141895 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 141895 times.
 141895 if (!func || name_length <= 0 || name_length >= sizeof(name_buf))
1044 ✗ return NULL;
1045
1046 141895 state.current_func = get_func(&state.funcs, name_buf);
1047 141895 state.funcs->color = 1;
1048 141895 v = &state.current_func->versions;
1049
1050
2/2
✓ Branch 0 taken 131490 times.
✓ Branch 1 taken 10405 times.
 141895 if (v->func) {
1051 CheckasmFuncVersion *prev;
1052 do {
1053 /* Only test functions that haven't already been tested */
1054
2/2
✓ Branch 0 taken 118036 times.
✓ Branch 1 taken 60623 times.
 178659 if (v->func == func)
1055 118036 return NULL;
1056
1057
1/2
✓ Branch 0 taken 60623 times.
✗ Branch 1 not taken.
 60623 if (v->ok)
1058 60623 ref = v->func;
1059
1060 60623 prev = v;
1061
2/2
✓ Branch 0 taken 47169 times.
✓ Branch 1 taken 13454 times.
 60623 } while ((v = v->next));
1062
1063 13454 v = prev->next = checkasm_malloc(sizeof(CheckasmFuncVersion));
1064 }
1065
1066 23859 v->func = func;
1067 23859 v->ok = 1;
1068 23859 v->cpu = state.cpu_flag;
1069 23859 state.current_func_ver = v;
1070
1071
2/2
✓ Branch 0 taken 13454 times.
✓ Branch 1 taken 10405 times.
 23859 if (state.cpu_flag)
1072 13454 state.num_checked++;
1073
1074 23859 return ref;
1075 }
1076
1077 /* Decide whether or not the current function needs to be benchmarked */
1078 38694 int checkasm_bench_func(void)
1079 {
1080
2/6
✓ Branch 0 taken 38694 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 38694 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 38694 return !state.num_failed && state.bench_pattern &&
1081 ✗ !wildstrcmp(state.current_func->name, state.bench_pattern);
1082 }
1083
1084 /* Indicate that the current test has failed */
1085 ✗ void checkasm_fail_func(const char *msg, ...)
1086 {
1087 ✗ if (state.current_func_ver && state.current_func_ver->cpu &&
1088 ✗ state.current_func_ver->ok)
1089 {
1090 va_list arg;
1091
1092 ✗ print_cpu_name();
1093 ✗ fprintf(stderr, " %s_%s (", state.current_func->name, cpu_suffix(state.current_func_ver->cpu));
1094 ✗ va_start(arg, msg);
1095 ✗ vfprintf(stderr, msg, arg);
1096 ✗ va_end(arg);
1097 ✗ fprintf(stderr, ")\n");
1098
1099 ✗ state.current_func_ver->ok = 0;
1100 ✗ state.num_failed++;
1101 }
1102 ✗ }
1103
1104 302296 void checkasm_set_signal_handler_state(int enabled) {
1105 302296 state.catch_signals = enabled;
1106 302296 }
1107
1108 141895 int checkasm_handle_signal(int s) {
1109
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 141895 times.
 141895 if (s) {
1110 #ifdef __GLIBC__
1111 ✗ checkasm_fail_func("fatal signal %d: %s", s, strsignal(s));
1112 #else
1113 checkasm_fail_func(s == SIGFPE ? "fatal arithmetic error" :
1114 s == SIGILL ? "illegal instruction" :
1115 s == SIGBUS ? "bus error" :
1116 "segmentation fault");
1117 #endif
1118 }
1119 141895 return s;
1120 }
1121
1122 /* Get the benchmark context of the current function */
1123 ✗ CheckasmPerf *checkasm_get_perf_context(void)
1124 {
1125 ✗ CheckasmPerf *perf = &state.current_func_ver->perf;
1126 ✗ memset(perf, 0, sizeof(*perf));
1127 ✗ perf->sysfd = state.sysfd;
1128 ✗ return perf;
1129 }
1130
1131 /* Print the outcome of all tests performed since the last time this function was called */
1132 2514 void checkasm_report(const char *name, ...)
1133 {
1134 static int prev_checked, prev_failed, max_length;
1135
1136
2/2
✓ Branch 0 taken 381 times.
✓ Branch 1 taken 2133 times.
 2514 if (state.num_checked > prev_checked) {
1137 381 int pad_length = max_length + 4;
1138 va_list arg;
1139
1140 381 print_cpu_name();
1141 381 pad_length -= fprintf(stderr, " - %s.", state.current_test_name);
1142 381 va_start(arg, name);
1143 381 pad_length -= vfprintf(stderr, name, arg);
1144 381 va_end(arg);
1145 381 fprintf(stderr, "%*c", FFMAX(pad_length, 0) + 2, '[');
1146
1147
1/2
✓ Branch 0 taken 381 times.
✗ Branch 1 not taken.
 381 if (state.num_failed == prev_failed)
1148 381 color_printf(COLOR_GREEN, "OK");
1149 else
1150 ✗ color_printf(COLOR_RED, "FAILED");
1151 381 fprintf(stderr, "]\n");
1152
1153 381 prev_checked = state.num_checked;
1154 381 prev_failed = state.num_failed;
1155
2/2
✓ Branch 0 taken 198 times.
✓ Branch 1 taken 1935 times.
 2133 } else if (!state.cpu_flag) {
1156 /* Calculate the amount of padding required to make the output vertically aligned */
1157 198 int length = strlen(state.current_test_name);
1158 va_list arg;
1159
1160 198 va_start(arg, name);
1161 198 length += vsnprintf(NULL, 0, name, arg);
1162 198 va_end(arg);
1163
1164
2/2
✓ Branch 0 taken 122 times.
✓ Branch 1 taken 76 times.
 198 if (length > max_length)
1165 122 max_length = length;
1166 }
1167 2514 }
1168
1169 #define DEF_CHECKASM_CHECK_FUNC(type, fmt) \
1170 int checkasm_check_##type(const char *file, int line, \
1171 const type *buf1, ptrdiff_t stride1, \
1172 const type *buf2, ptrdiff_t stride2, \
1173 int w, int h, const char *name) \
1174 { \
1175 int y = 0; \
1176 stride1 /= sizeof(*buf1); \
1177 stride2 /= sizeof(*buf2); \
1178 for (y = 0; y < h; y++) \
1179 if (memcmp(&buf1[y*stride1], &buf2[y*stride2], w*sizeof(*buf1))) \
1180 break; \
1181 if (y == h) \
1182 return 0; \
1183 checkasm_fail_func("%s:%d", file, line); \
1184 if (!state.verbose) \
1185 return 1; \
1186 fprintf(stderr, "%s:\n", name); \
1187 while (h--) { \
1188 for (int x = 0; x < w; x++) \
1189 fprintf(stderr, " " fmt, buf1[x]); \
1190 fprintf(stderr, " "); \
1191 for (int x = 0; x < w; x++) \
1192 fprintf(stderr, " " fmt, buf2[x]); \
1193 fprintf(stderr, " "); \
1194 for (int x = 0; x < w; x++) \
1195 fprintf(stderr, "%c", buf1[x] != buf2[x] ? 'x' : '.'); \
1196 buf1 += stride1; \
1197 buf2 += stride2; \
1198 fprintf(stderr, "\n"); \
1199 } \
1200 return 1; \
1201 }
1202
1203
4/18
✗ Branch 0 not taken.
✓ Branch 1 taken 123417 times.
✓ Branch 2 taken 123417 times.
✓ Branch 3 taken 4846 times.
✓ Branch 4 taken 4846 times.
✗ Branch 5 not taken.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✗ Branch 11 not taken.
✗ Branch 12 not taken.
✗ Branch 15 not taken.
✗ Branch 16 not taken.
✗ Branch 18 not taken.
✗ Branch 19 not taken.
✗ Branch 21 not taken.
✗ Branch 22 not taken.
✗ Branch 24 not taken.
✗ Branch 25 not taken.
 128263 DEF_CHECKASM_CHECK_FUNC(uint8_t, "%02x")
1204
4/18
✗ Branch 0 not taken.
✓ Branch 1 taken 342752 times.
✓ Branch 2 taken 342752 times.
✓ Branch 3 taken 14206 times.
✓ Branch 4 taken 14206 times.
✗ Branch 5 not taken.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✗ Branch 11 not taken.
✗ Branch 12 not taken.
✗ Branch 15 not taken.
✗ Branch 16 not taken.
✗ Branch 18 not taken.
✗ Branch 19 not taken.
✗ Branch 21 not taken.
✗ Branch 22 not taken.
✗ Branch 24 not taken.
✗ Branch 25 not taken.
 356958 DEF_CHECKASM_CHECK_FUNC(uint16_t, "%04x")
1205 ✗ DEF_CHECKASM_CHECK_FUNC(uint32_t, "%08x")
1206
4/18
✗ Branch 0 not taken.
✓ Branch 1 taken 14082 times.
✓ Branch 2 taken 14082 times.
✓ Branch 3 taken 548 times.
✓ Branch 4 taken 548 times.
✗ Branch 5 not taken.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✗ Branch 11 not taken.
✗ Branch 12 not taken.
✗ Branch 15 not taken.
✗ Branch 16 not taken.
✗ Branch 18 not taken.
✗ Branch 19 not taken.
✗ Branch 21 not taken.
✗ Branch 22 not taken.
✗ Branch 24 not taken.
✗ Branch 25 not taken.
 14630 DEF_CHECKASM_CHECK_FUNC(int16_t, "%6d")
1207 ✗ DEF_CHECKASM_CHECK_FUNC(int32_t, "%9d")
1208