re PR c++/38637 (ICE with template declaration of enum)

	PR c++/38637
	* decl.c (start_enum): If enumtype is error_mark_node, exit early.

	* g++.dg/cpp0x/enum2.C: New test.

From-SVN: r142946

gcc/cp/ChangeLog

+2008-12-29  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/38637
+	* decl.c (start_enum): If enumtype is error_mark_node, exit early.
+
 2008-12-28  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/38650

gcc/cp/decl.c

@@ -10891,6 +10891,9 @@ start_enum (tree name, tree underlying_type, bool scoped_enum_p)
       enumtype = pushtag (name, enumtype, /*tag_scope=*/ts_current);
     }
 
+  if (enumtype == error_mark_node)
+    return enumtype;
+
   if (scoped_enum_p)
     {
       SET_SCOPED_ENUM_P (enumtype, 1);

gcc/testsuite/ChangeLog

+2008-12-29  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/38637
+	* g++.dg/cpp0x/enum2.C: New test.
+
 2008-12-28  Andrew Pinski  <pinskia@gmail.com>
 
 	PR libobjc/36610

gcc/testsuite/g++.dg/cpp0x/enum2.C

+// PR c++/38637
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+
+template<int> enum E : int { e };	// { dg-error "template declaration of" }