https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67628
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to ktkachov from comment #2) > (In reply to Andrew Pinski from comment #1) > > This is due to the fold-const.c optimization which should not be there any > > more. You need to do benchmarking on x86 also if you remove it. > > > > could you elaborate what optimization is that? > Is it a matter of fold-const.c or match.pd canonicalizing the expression in > some way? The optimization is converting andif into and. Basically ifcombine pass does not recombine them if fold-const does it early on.
