https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121593
--- Comment #12 from Marc Mutz <marc.mutz at hotmail dot com> ---
> Lemme throw ubsan/asan on the noinline code.
Passes, no report :(
> Does -fno-ipa-modref work?
> Does -fno-strict-alias work?
Both (independent of each other) fix the issue, yes.
Lemme try a C++20 build to exclude `enum class qchar8_t : uchar {};`.
