https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121593
--- Comment #18 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Sam James from comment #17) > (In reply to Andrew Pinski from comment #16) > > This is NOT a GCC bug. > > > > `char*` and `qchar8_t *` don't alias according to the C++ aliasing rules. > > > > This came up in another bug (it ended up not being relevant) so I imagine Qt > will need to audit a lot of uses. The easy hack is may_alias on qchar8_t but > then you pay the performance price. Note may_alias on qchar8_t won't work here. because it is not char and qchar8_t that don't alias but rather the pointer types to them don't alias.
