https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63661
--- Comment #18 from Martin Jambor <jamborm at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #14) > Started with r204698 , you can use -O2 -fpic -mtune=corei7 in compilers that > don't grok -mtune=nehalem. So it's probably mine. I will take a look but please be patient, it may take a week or probably two.