https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78621
--- Comment #1 from Nathan Sidwell <nathan at gcc dot gnu.org> --- Created attachment 40255 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40255&action=edit squangling too This testcase shows problems with the mangling of auto parms themeselves, and with subsequent fallout of squangling references. The two forwarding function instantiations should mangle similarly (with 'i'->'Da' substitution), but they mangle quite differently.