https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94537
Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID CC| |jason at gcc dot gnu.org --- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> --- As described in my patch for PR 94034, these testcases are not guaranteed to work because A is trivially copyable and therefore the implementation can introduce an extra temporary on return.