re PR c++/42358 ([C++0x] Assembler failure on…

re PR c++/42358 ([C++0x] Assembler failure on libstdc++-v3/testsuite/23_containers/multimap/init-list.cc with -O0)

	PR c++/42358
	* pt.c (iterative_hash_template_arg): Completely ignore
	ARGUMENT_PACK_SELECT.

From-SVN: r155267

gcc/cp/ChangeLog

+2009-12-15  Jason Merrill  <jason@redhat.com>
+
+	PR c++/42358
+	* pt.c (iterative_hash_template_arg): Completely ignore
+	ARGUMENT_PACK_SELECT.
+
 2009-12-15  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/41183

gcc/cp/pt.c

@@ -1457,6 +1457,11 @@ iterative_hash_template_arg (tree arg, hashval_t val)
   if (!TYPE_P (arg))
     STRIP_NOPS (arg);
 
+  if (TREE_CODE (arg) == ARGUMENT_PACK_SELECT)
+    /* We can get one of these when re-hashing a previous entry in the middle
+       of substituting into a pack expansion.  Just look through it.  */
+    arg = ARGUMENT_PACK_SELECT_FROM_PACK (arg);
+
   code = TREE_CODE (arg);
   tclass = TREE_CODE_CLASS (code);
 
@@ -1482,11 +1487,6 @@ iterative_hash_template_arg (tree arg, hashval_t val)
     case EXPR_PACK_EXPANSION:
       return iterative_hash_template_arg (PACK_EXPANSION_PATTERN (arg), val);
 
-    case ARGUMENT_PACK_SELECT:
-      /* We can get one of these when re-hashing a previous entry in the middle
-         of substituting into a pack expansion.  Just look through it...  */
-      arg = ARGUMENT_PACK_SELECT_FROM_PACK (arg);
-      /* ...and fall through.  */
     case TYPE_ARGUMENT_PACK:
     case NONTYPE_ARGUMENT_PACK:
       return iterative_hash_template_arg (ARGUMENT_PACK_ARGS (arg), val);

gcc/testsuite/ChangeLog

+2009-12-15  Jason Merrill  <jason@redhat.com>
+
+	PR c++/42358
+	* g++.dg/cpp0x/variadic98.C: New.
+
 2009-12-14  Jason Merrill  <jason@redhat.com>
 
 	PR c++/42373