https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126486
--- Comment #2 from Hongtao Liu <liuhongt at gcc dot gnu.org> --- (In reply to Hongtao Liu from comment #1) > The canonicalization introduced by r15-6657 make the loop invariant of inner > loop not simlified and caused extra use in the outer loop and regressed > performance. typo, codesize
