https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103989
--- Comment #7 from hubicka at kam dot mff.cuni.cz --- > --- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- > Honza, -Og was supposed to not do so much work, I intended to disable IPA > inlining but there's no knob for that. I wonder where to best put such > guard? I set flag_inline_small_functions to zero for -Og but we still > run inline_small_functions (). Basically -Og was supposed to only do > early opts and then what is necessary for correct RTL expansion. Doing > IPA inlining defeats this :/ > > Can you help? Is it safe to simply gate the inline_small_functions () > call? Do we want an extra -f[no-]ipa-inline like we have -fearly-inlining? > > Using -fdisable-ipa-inline gets rid of the diagnostic You can not disable an IPA pass becasuse then we will mishandle optimize attributes. I think you simply want to set flag_inline_small_functions = 0 flag_inline_functions_called_once = 0 and we should only inline always_inlines. inline_small_functions will still loop and check inlinability of functions but if everything is compiled with -Og it will not find anything inlinable and exit. Perhaps we may also extend initialize_inline_failed to add CIF_DEBUG_OPTIMIZE so -Winline does say something more useufl then "function not considered" Honza
