https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84780
--- Comment #9 from Zdenek Sojka <zsojka at seznam dot cz> --- (In reply to Segher Boessenkool from comment #8) > Created attachment 43631 [details] > proposed patch > > I cannot reproduce that exact generated code; maybe it needs tuning for some > particular CPU? > > Could you try the attached patch? Thanks! I can confirm that r258444 FAILs, but r258449+patch PASSes the testcases (both original and reduced).