Hi Albin, one of my students reported a little oddity about `-ffast-math`. Assume you want to set a float to -0, i.e. set the sign bit only. In this case `-ffast-math` seems to remove the sign bit.
In VOLK this might be an issue with `_mm256_conjugate_ps` in `include/volk/volk_avx_intrinsics.h`. I didn't check for other potential error sources. Cheers Johannes Am 01.09.19 um 16:10 schrieb Albin Stigö: > Anyone has experience with the real world impact of using gcc > -ffast-math with SDR in general, and GNURadio/Volk in particular? > > > --Albin SM6WJM > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
