https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92729
--- Comment #48 from Senthil Kumar Selvaraj <saaadhu at gcc dot gnu.org> --- Submitted https://gcc.gnu.org/pipermail/gcc-patches/2021-January/563638.html, which addresses comments made when the work-in-progress version was submitted. There are no regression failures (save for some tests that fail because of code size increase) on atmega128, atxmega128a3, attiny40 and atmega8. Follow up patch https://gcc.gnu.org/pipermail/gcc-patches/2021-January/563779.html improves code size regressions. More patches along the way - fixing some define_splits, and adding CC_CZN and CC_ZN modes, along with enabling the cmpelim pass.
