===================================================================
@@ -5138,7 +5138,17 @@ need_assembler_name_p (tree decl)
&& DECL_NAME (decl)
&& decl == TYPE_NAME (TREE_TYPE (decl))
&& !is_lang_specific (TREE_TYPE (decl))
- && AGGREGATE_TYPE_P (TREE_TYPE (decl))
+ /* Save some work. Names of builtin types are always derived from
+ properties of its main variant. A special case are integer types
+ where mangling do make differences between char/signed char/unsigned
+ char etc. Storing name for these makes e.g.
+ -fno-signed-char/-fsigned-char mismatches to be handled well.
+
+ See cp/mangle.c:write_builtin_type for details. */
+ && (TREE_CODE (TREE_TYPE (decl)) != VOID_TYPE
+ && TREE_CODE (TREE_TYPE (decl)) != BOOLEAN_TYPE
+ && TREE_CODE (TREE_TYPE (decl)) != REAL_TYPE
+ && TREE_CODE (TREE_TYPE (decl)) != FIXED_POINT_TYPE)
&& !TYPE_ARTIFICIAL (TREE_TYPE (decl))
&& !variably_modified_type_p (TREE_TYPE (decl), NULL_TREE)
&& !type_in_anonymous_namespace_p (TREE_TYPE (decl)))
===================================================================
@@ -675,7 +675,8 @@ odr_subtypes_equivalent_p (tree t1, tree
have to be compared structurally. */
if (TREE_CODE (t1) != TREE_CODE (t2))
return false;
- if ((TYPE_NAME (t1) == NULL_TREE) != (TYPE_NAME (t2) == NULL_TREE))
+ if (AGGREGATE_TYPE_P (t1)
+ && (TYPE_NAME (t1) == NULL_TREE) != (TYPE_NAME (t2) == NULL_TREE))
return false;
type_pair pair={t1,t2};