https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80197
--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> --- On Tue, 28 Mar 2017, amonakov at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80197 > > --- Comment #5 from Alexander Monakov <amonakov at gcc dot gnu.org> --- > On trunk, manually fixing up inlining is not enough: trunk additionally needs > -fno-tracer, otherwise crucial if-conversion of 'if (k < 0) k += m1;' is > prevented. That means -ftracer has similar issues as path splitting. -ftracer simply looks for a path with high probability so supposedly the distorted profile might be the reason for this?