https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119665
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=78394, | |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=89723 Component|c |tree-optimization --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- So -Og runs a different optimization pipeline than the other optimization levels do. It does not do any jump threading nor other optimizations which will confuse debugging and in this case to see if the desc is uninitialized an optimization that is not done by -Og is needed.