re PR c++/46400 (g++ Segmentation Fault on heavily templated project.)

	PR c++/46400
	* cp-tree.h (union lang_tree_node): Use TYPE_NEXT_VARIANT
	instead of TYPE_CHAIN for chain_next for types.

	* c-decl.c (union lang_tree_node): Use TYPE_NEXT_VARIANT
	instead of TYPE_CHAIN for chain_next for types.

From-SVN: r175389

gcc/ChangeLog

+2011-06-24  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/46400
+	* c-decl.c (union lang_tree_node): Use TYPE_NEXT_VARIANT
+	instead of TYPE_CHAIN for chain_next for types.
+
 2011-06-24  Richard Henderson  <rth@redhat.com>
 
 	* config/sparc/sparc.md (create_flat_frame_1<P:mode>): Remove.

gcc/c-decl.c

@@ -238,7 +238,7 @@ extern char C_SIZEOF_STRUCT_LANG_IDENTIFIER_isnt_accurate
 /* The resulting tree type.  */
 
 union GTY((desc ("TREE_CODE (&%h.generic) == IDENTIFIER_NODE"),
-       chain_next ("TREE_CODE (&%h.generic) == INTEGER_TYPE ? (union lang_tree_node *) TYPE_NEXT_VARIANT (&%h.generic) : CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_COMMON) ? ((union lang_tree_node *) TREE_CHAIN (&%h.generic)) : NULL")))  lang_tree_node
+       chain_next ("CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_TYPE_COMMON) ? (union lang_tree_node *) TYPE_NEXT_VARIANT (&%h.generic) : CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_COMMON) ? ((union lang_tree_node *) TREE_CHAIN (&%h.generic)) : NULL")))  lang_tree_node
  {
   union tree_node GTY ((tag ("0"),
 			desc ("tree_node_structure (&%h)")))

gcc/cp/ChangeLog

+2011-06-24  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/46400
+	* cp-tree.h (union lang_tree_node): Use TYPE_NEXT_VARIANT
+	instead of TYPE_CHAIN for chain_next for types.
+
 2011-06-23  Gabriel Charette  <gchare@google.com>
 
 	* name-lookup.h (cp_binding_level): Removed unused

gcc/cp/cp-tree.h

@@ -729,7 +729,7 @@ enum cp_tree_node_structure_enum {
 
 /* The resulting tree type.  */
 union GTY((desc ("cp_tree_node_structure (&%h)"),
-       chain_next ("CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_COMMON) ? ((union lang_tree_node *) TREE_CHAIN (&%h.generic)) : NULL"))) lang_tree_node {
+       chain_next ("CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_TYPE_COMMON) ? ((union lang_tree_node *) TYPE_NEXT_VARIANT (&%h.generic)) : CODE_CONTAINS_STRUCT (TREE_CODE (&%h.generic), TS_COMMON) ? ((union lang_tree_node *) TREE_CHAIN (&%h.generic)) : NULL"))) lang_tree_node {
   union tree_node GTY ((tag ("TS_CP_GENERIC"),
 			desc ("tree_node_structure (&%h)"))) generic;
   struct template_parm_index_s GTY ((tag ("TS_CP_TPI"))) tpi;