re PR c++/65811 (ice in vague_linkage_p)

/cp
2015-06-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/65811
	* decl.c (duplicate_decls): Adjust DECL_COMDAT of newdecl.

/testsuite
2015-06-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/65811
	* g++.dg/other/linkage2.C: New.

From-SVN: r224888

gcc/cp/ChangeLog

+2015-06-24  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/65811
+	* decl.c (duplicate_decls): Adjust DECL_COMDAT of newdecl.
+
 2015-06-23  Patrick Palka  <ppalka@gcc.gnu.org>
 
 	PR c++/30044

gcc/cp/decl.c

@@ -2106,6 +2106,8 @@ duplicate_decls (tree newdecl, tree olddecl, bool newdecl_is_friend)
   TREE_STATIC (olddecl) = TREE_STATIC (newdecl) |= TREE_STATIC (olddecl);
   if (! DECL_EXTERNAL (olddecl))
     DECL_EXTERNAL (newdecl) = 0;
+  if (! DECL_COMDAT (olddecl))
+    DECL_COMDAT (newdecl) = 0;
 
   new_template_info = NULL_TREE;
   if (DECL_LANG_SPECIFIC (newdecl) && DECL_LANG_SPECIFIC (olddecl))

gcc/testsuite/ChangeLog

+2015-06-24  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/65811
+	* g++.dg/other/linkage2.C: New.
+
 2015-06-24  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
 
 	PR target/63408

gcc/testsuite/g++.dg/other/linkage2.C

+// PR c++/65811
+
+struct foo { int i; };
+
+static void fn1 ();
+inline void
+fn1 ()
+{
+  static struct foo a[1];
+}