[Bug tree-optimization/126486] codesize regression by 17.5% for spec2017 507.catcuBSSN_r caused by r15-6657 with O2

"liuhongt at gcc dot gnu.org via Gcc-bugs" <[email protected]> Thu, 30 Jul 2026 03:34:17 +0000

Newsgroups	gmane.comp.gcc.bugs
Message-ID	<[email protected]/bugzilla/>

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