https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70577
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Kirill Yukhin from comment #8) > This commit caused miscompare of spec2000/178.galgel on > -march=skylake-avx512 (-Ofast -flto -funroll-loops): > Newton iteration # 0 Maximal derivative = 0.1526E-07 > Newton iteration # 0 Maximal derivative = 0.3901E-07 Please file a separate bugreport for this.