re PR c++/38640 (ICE with decltype of template value parameter)

	PR c++/38640
	* semantics.c (finish_decltype_type): Handle TEMPLATE_PARM_INDEX.

	* g++.dg/cpp0x/decltype15.C: New test.

From-SVN: r142973

gcc/cp/ChangeLog

+2008-12-31  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/38640
+	* semantics.c (finish_decltype_type): Handle TEMPLATE_PARM_INDEX.
+
 2008-12-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/38635

gcc/cp/semantics.c

@@ -4640,6 +4640,7 @@ finish_decltype_type (tree expr, bool id_expression_or_member_access_p)
         case CONST_DECL:
         case PARM_DECL:
         case RESULT_DECL:
+        case TEMPLATE_PARM_INDEX:
           type = TREE_TYPE (expr);
           break;
 

gcc/testsuite/ChangeLog

 2008-12-31  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/38640
+	* g++.dg/cpp0x/decltype15.C: New test.
+
 	PR middle-end/38676
 	* gcc.dg/gomp/pr38676.c: New test.
 

gcc/testsuite/g++.dg/cpp0x/decltype15.C

+// PR c++/38640
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+
+template<int N> void foo (decltype (N));
+template<long int N> void foo (decltype (N));
+
+void
+bar (void)
+{
+  foo<5> (6);
+  foo<5L> (6L);
+}