[Bug sanitizer/85777] [7/8/9 Regression] -fsanitize=undefined makes a -Wmaybe-uninitialized warning disappear

[vincent-gcc at vinc17 dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85777

--- Comment #4 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
(In reply to Jakub Jelinek from comment #3)
> If you care about warnings as well as sanitization, I'd suggest separate
> builds for warnings and for sanitization, the latter perhaps with -w.

This is fine for code that is fixed, but this makes developing and debugging
harder, when testing code just after making changes.