https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111243
--- Comment #10 from Alex Mohr <amohr at amohr dot org> --- (In reply to Xi Ruoyao from comment #9) > I believe the only real issue is imprecise documentation: "It is a better > choice than -O0" has some caveats and it's not always true. Is there a way to explicitly enable the compiler passes that collect debug info that are disabled at -O0?