https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83997
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Seems nothing actually handles the late attributes in TYPE_ATTRIBUTES that
aren't {RECORD,UNION,CLASS,ENUMERAL}_TYPE.
Tried:
--- pt.c.jj5 2018-01-24 17:18:42.393392254 +0100
+++ pt.c 2018-01-26 14:12:46.470745138 +0100
@@ -13662,18 +13662,43 @@ tsubst (tree t, tree args, tsubst_flags_
case ERROR_MARK:
case IDENTIFIER_NODE:
case VOID_TYPE:
+ case LANG_TYPE:
+ return t;
+
case REAL_TYPE:
case COMPLEX_TYPE:
case VECTOR_TYPE:
case BOOLEAN_TYPE:
case NULLPTR_TYPE:
- case LANG_TYPE:
+ if (TYPE_ATTRIBUTES (t))
+ {
+ tree orig_t = t;
+ tree attributes = TYPE_ATTRIBUTES (t);
+ TYPE_ATTRIBUTES (t) = NULL_TREE;
+ apply_late_template_attributes (&t, attributes, 0,
+ args, complain, NULL_TREE);
+ if (t != orig_t)
+ TYPE_ATTRIBUTES (orig_t) = attributes;
+ fixup_attribute_variants (t);
+ }
return t;
case INTEGER_TYPE:
if (t == integer_type_node)
return t;
+ if (TYPE_ATTRIBUTES (t))
+ {
+ tree orig_t = t;
+ tree attributes = TYPE_ATTRIBUTES (t);
+ TYPE_ATTRIBUTES (t) = NULL_TREE;
+ apply_late_template_attributes (&t, attributes, 0,
+ args, complain, NULL_TREE);
+ if (t != orig_t)
+ TYPE_ATTRIBUTES (orig_t) = attributes;
+ fixup_attribute_variants (t);
+ }
+
if (TREE_CODE (TYPE_MIN_VALUE (t)) == INTEGER_CST
&& TREE_CODE (TYPE_MAX_VALUE (t)) == INTEGER_CST)
return t;
but even that is already ugly hack, but would need to deal with t becoming
something else after the apply_late_template_attributes call (VECTOR_TYPE in
this case).
