https://gcc.gnu.org/bugzilla/show_bug.cgi?id=74765
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- I wonder if we can somehow "annotate" locations with NO_WARNING (warning-option) instead of relying on bits on tree nodes / stmts. Maybe even as simple as a global hash_map <location, diag-desc> that could also be used to tack warnings to locations and emit those only if the location remains in the IL stream after dead code elimination...
