https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65866
--- Comment #8 from Matthijs van Duin <matthijsvanduin at gmail dot com> --- (In reply to Yuxuan Shui from comment #7) > IIUC now wrong codegen has all been fixed? so the only thing left should be > the diagnostic bug? It seems so yes, the combined testcase in Bug 70796 comment 5 fails for: 9.4, 10.3, 11.2 passes for: 9.5, 10.4, 11.2.1, 12.1 and later However the undefined behaviour warnings continue to be emitted unchanged (including in trunk), which tbh means it barely matters whether codegen is correct(*) since no programmer in their right mind is going to leave a construct in their code that causes the compiler to scream "undefined behaviour" at them. (*) for cases where a diagnostic is emitted at least; obviously wrong codegen without diagnostic (which also used to happen) is objectively worse than a wrong diagnostic with correct codegen.
