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27 lines
922 B

2013-06-07 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/53658
* pt.c (lookup_template_class_1): Consistently use TYPE_MAIN_DECL,
not TYPE_STUB_DECL, to access the _DECL for a _TYPE.
--- gcc/cp/pt.c
+++ gcc/cp/pt.c
@@ -7561,7 +7561,7 @@ lookup_template_class_1 (tree d1, tree arglist, tree in_decl, tree context,
if (CLASS_TYPE_P (template_type) && is_dependent_type)
/* If the type makes use of template parameters, the
code that generates debugging information will crash. */
- DECL_IGNORED_P (TYPE_STUB_DECL (t)) = 1;
+ DECL_IGNORED_P (TYPE_MAIN_DECL (t)) = 1;
/* Possibly limit visibility based on template args. */
TREE_PUBLIC (type_decl) = 1;
--- /dev/null
+++ gcc/testsuite/g++.dg/cpp0x/alias-decl-36.C
@@ -0,0 +1,6 @@
+// PR c++/53658
+// { dg-do compile { target c++11 } }
+
+struct A;
+template <typename> using Foo = const A;
+template <typename Item> Foo <Item> bar();