https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100188
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Richard Biener from comment #1) > At -O3 we inline less, keeping the call to d() in main(). We then fail to > constant propagate the const promoted 'b'. So yes we do inline less kinda of. At -O3, we inline a into main in einline (but not at -O1) and this somehow allows us to inline d into main during the IPA inline phase. > Not sure why IPA CP doesn't get it (promotion happens too late?). Yes promotion to constant of b happens after IPA CP. I wonder if could run static-var twice once before even eiline ...
