Le 22 novembre 2023 16:30:44 GMT+02:00, flow gg <hlefthl...@gmail.com> a écrit : >> How did you test it? > >I wrote a test, but it was a bit rough, so I want to modify it before >submitting. I've added it to this reply. > >> This does not seem according to the C ABI. AFAIK `unsigned` is >sign-extended. > >I'm a bit confused... because this passed in the tests I wrote in qemu. >Maybe there's a problem with my test?
You probably didn't test sizes between 2^31 and 2^32-1. This might not even be feasible in QEMU. Ideally the prototype would use size_t, then the problem wouldn't exist. > >> ALU right before dependent conditional branch should be avoided. > >Should the sub be moved forward? I've modified it. > >> SHxADD can be used advantageously. > >Okay, I've made the modification > >Rémi Denis-Courmont <r...@remlab.net> 于2023年11月22日周三 21:41写道: > >> Hi, >> >> How did you test it? As per >> http://ffmpeg.org/pipermail/ffmpeg-devel/2023-June/310720.html we still >> don't have a FATE instance set up with the RISC-V Vector extension. The >> only testing consists of my manual runs of checkasm on a K230 board. (We >> *do* have Zba and Zbb now though, hence the existing extract_exponents()). >> >> Also: >> - This does not seem according to the C ABI. AFAIK `unsigned` is >> sign-extended. >> - ALU right before dependent conditional branch should be avoided. >> - SHxADD can be used advantageously. >> >> >> Le 22 novembre 2023 14:00:07 GMT+02:00, flow gg <hlefthl...@gmail.com> a >> écrit : >> >c910 >> > float_to_fixed24_c: 208.2 >> > float_to_fixed24_rvv_f32: 71.5 >> _______________________________________________ >> ffmpeg-devel mailing list >> ffmpeg-devel@ffmpeg.org >> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel >> >> To unsubscribe, visit link above, or email >> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". >> _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".