https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78685
mark at hotpy dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mark at hotpy dot org --- Comment #21 from mark at hotpy dot org --- Debugging CPython is a real pain with GCC. (gdb) p almost-any-useful-value value has been optimised out Isn't the point of -Og that values should be visible to the debugger?