https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114417
Matthias Kretz (Vir) <mkretz at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID Status|UNCONFIRMED |RESOLVED --- Comment #10 from Matthias Kretz (Vir) <mkretz at gcc dot gnu.org> --- Here's your example with the simd_abi::compatible ABI tag: https://godbolt.org/z/WbWr75EGW This is all working as intended. Note that no such ABI-stable ABI tag is currently planned for the TS merge to C++26. So I guess that will make you happy? :)