https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95726
--- Comment #2 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> --- (In reply to Jason Merrill from comment #1) > Does the aarch64 port expect __Float32x4_t type to be considered equivalent > to the GNU vector type or not? If so, why use build_distinct_type_copy over > build_variant_type_copy? If not, they might want to set TYPE_INDIVISIBLE_P > so that structural_comptypes treats them as different. They mangle differently, and e.g.: void f(float32x4_t); void f(V); aren't ODR equivalent. But a lot of code relies on the GNU vector extensions being available for float32x4_t as well as V, and on V and float32x4_t being mutually and implicitly interconvertible.
