https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65076
--- Comment #51 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to rguent...@suse.de from comment #48) > > Maybe we regressed optimizing GCC itself? (does not bootstrapping > but compiling gcc 5 with gcc 4.9 improve things?) No, gcc configured with "--disable-bootstrap --enable-checking=release" and build with gcc-5 vs. gcc-4.9 does not show any difference.