PR c++/33506
* langhooks.h (struct lang_hooks_for_types): Add type_hash_eq
field.
* langhooks-def.h (LANG_HOOKS_TYPE_HASH_EQ): Define.
(LANG_HOOKS_FOR_TYPES_INITIALIZER): Add LANG_HOOKS_TYPE_HASH_EQ.
* tree.c (type_hash_eq): For FUNCTION_TYPE use
lang_hooks.type.type_hash_eq in addition to generic tests.
* cp-tree.h (cxx_type_hash_eq): New prototype.
* cp-objcp-common.h (LANG_HOOKS_TYPE_HASH_EQ): Redefine.
* tree.c (cxx_type_hash_eq): New function.
* g++.dg/ext/attrib29.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128718
138bc75d-0d04-0410-961f-
82ee72b054a4