[Bug c++/83187] [8 regression] internal compiler error: in get_alias_set, at alias.c:923

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83187

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The problem is that we have a type (complex double) where
TYPE_CANONICAL (TYPE_MAIN_VARIANT (t)) != TYPE_MAIN_VARIANT (TYPE_CANONICAL
(TYPE_MAIN_VARIANT (t)))
which get_alias_set code asserts on, because it does:
  t = TYPE_MAIN_VARIANT (t);
...
  if (TYPE_STRUCTURAL_EQUALITY_P (t))
    ...
  else
    t = TYPE_CANONICAL (t);
  gcc_checking_assert (t == TYPE_MAIN_VARIANT (t));

Nathan, can you please have a look?