https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101995
--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> --- >I don't see any problem with aarch64 fwiw. I have to try it on aarch64 but it failed there at one point. (In reply to Segher Boessenkool from comment #8) > Also, what is fragile here? This is *removing* fragility and premature > choices! (In reply to Segher Boessenkool from comment #9) > (In reply to Segher Boessenkool from comment #7) > > What is this REG_RETURNED thing? > > Ah, something added in ira-lives.c, and you call *that* code fragile? > I agree :-) You got to what I thought was fragile in the end. And yes the whole REG_RETURNED mechanism seems very fragile (not the change r9-3594 ). I could not figure out how it was being known to be set on which function call even.
