don't ICE when section attribute is used on things in comdats

gcc/

	PR ipa/63621
	* symtab.c (symtab_node::verify): Check for section attribute before
	asserting something isn't in a section and a comdat group.

From-SVN: r218476

gcc/ChangeLog

+2014-12-07  Trevor Saunders  <tsaunders@mozilla.com>
+
+	* symtab.c (symtab_node::verify): Check for section attribute before
+	asserting something isn't in a section and a comdat group.
+
 2014-12-07  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	PR target/50751

gcc/symtab.c

@@ -1102,7 +1102,8 @@ symtab_node::verify_base (void)
       error_found = true;
     }
   if (get_section () && get_comdat_group ()
-      && !implicit_section)
+      && !implicit_section
+      && !lookup_attribute ("section", DECL_ATTRIBUTES (decl)))
     {
       error ("Both section and comdat group is set");
       error_found = true;

gcc/testsuite/g++.dg/ipa/pr63621.C

+// { dg-do compile }
+ class A
+{
+	public:
+		int __attribute__((section("a"))) f1(bool);
+		int f2(void *);
+		int f3(bool);
+};
+
+inline int A::f1(bool b)
+{
+	static  int c;
+	if (c)
+		;
+	return 0;
+}
+
+inline int A::f3(bool b)
+{
+	static __attribute__((section(""))) int c;
+	if (c)
+		;
+	return 0;
+}
+
+int A::f2(void *c)
+{
+	return f1(c) + f3(c);
+}