https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79224
Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2017-01-25 CC| |marxin at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- On my Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz, I see: gcc c-ray-f.c -O3 -ffast-math -funroll-loops -march=core-avx2 -lm && cat scene | time ./a.out -s 3000x2000: r244442: 2434 milliseconds r244441: 2310 milliseconds