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commit 3ed0dd076e12df55b069d4a709db105cadd81794 Author: Kacper Michajłow <[email protected]> AuthorDate: Wed Sep 30 00:10:42 2026 +0200 Commit: Kacper Michajłow <[email protected]> CommitDate: Wed Sep 30 14:40:12 2026 +0000 avutil/tests/softfloat: only run the timers with -t START_TIMER reads the PMU cycle counter on aarch64 and ARMv7 Linux, which user space usually cannot access, and the test died with SIGILL there. Time the add and mul loops only when -t is given, like the other lavu tests do, and otherwise compute only the last iteration, the one that is printed. Signed-off-by: Kacper Michajłow <[email protected]> --- libavutil/tests/softfloat.c | 53 ++++++++++++++++++++++++++++++--------------- 1 file changed, 36 insertions(+), 17 deletions(-) diff --git a/libavutil/tests/softfloat.c b/libavutil/tests/softfloat.c index a2e628fe81..2ec313f1cf 100644 --- a/libavutil/tests/softfloat.c +++ b/libavutil/tests/softfloat.c @@ -27,17 +27,38 @@ #include "libavutil/log.h" #include <stdio.h> +#include <string.h> static const SoftFloat FLOAT_0_017776489257 = {0x1234, 12}; static const SoftFloat FLOAT_1374_40625 = {0xabcd, 25}; static const SoftFloat FLOAT_0_1249694824218 = {0xFFF, 15}; +static double add_mul(int i) +{ + double d1 = i, d2 = i/100.0; -int main(void){ + for (int j = 0; j < 1000; j++) + d1 = (d1+1)*d2; + return d1; +} + +static SoftFloat add_mul_sf(int i) +{ + SoftFloat one = av_int2sf(1, 0); + SoftFloat sf1 = av_int2sf(i, 0); + SoftFloat sf2 = av_div_sf(av_int2sf(i, 2), av_int2sf(200, 3)); + + for (int j = 0; j < 1000; j++) + sf1 = av_mul_sf(av_add_sf(sf1, one), sf2); + return sf1; +} + +int main(int argc, char **argv){ SoftFloat one= av_int2sf(1, 0); SoftFloat sf1, sf2, sf3; double d1, d2, d3; int i, j; + int bench = argc > 1 && !strcmp(argv[1], "-t"); av_log_set_level(AV_LOG_DEBUG); d1= 1; @@ -53,26 +74,24 @@ int main(void){ printf("test1 sf =%d\n", av_sf2int(sf1, 24)); - for(i= 0; i<100; i++){ - START_TIMER - d1= i; - d2= i/100.0; - for(j= 0; j<1000; j++){ - d1= (d1+1)*d2; + if (bench) { + for(i= 0; i<100; i++){ + START_TIMER + d1= add_mul(i); + STOP_TIMER("float add mul") } - STOP_TIMER("float add mul") - } + } else + d1= add_mul(99); printf("test2 double=%d\n", (int)(d1 * (1<<24))); - for(i= 0; i<100; i++){ - START_TIMER - sf1= av_int2sf(i, 0); - sf2= av_div_sf(av_int2sf(i, 2), av_int2sf(200, 3)); - for(j= 0; j<1000; j++){ - sf1= av_mul_sf(av_add_sf(sf1, one),sf2); + if (bench) { + for(i= 0; i<100; i++){ + START_TIMER + sf1= add_mul_sf(i); + STOP_TIMER("softfloat add mul") } - STOP_TIMER("softfloat add mul") - } + } else + sf1= add_mul_sf(99); printf("test2 sf =%d (%d %d)\n", av_sf2int(sf1, 24), sf1.exp, sf1.mant); d1 = 0.0177764893; -- To stop receiving notification emails like this one, please contact [email protected]. _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
