cgraph.h (struct cgraph_node): Mark former_clone_of by GTY ((skip)).

	* cgraph.h (struct cgraph_node): Mark former_clone_of by GTY ((skip)).
	* cgraphunit.c (clone_of_p): Compile only when checking is enabled.

From-SVN: r159925

gcc/ChangeLog

 2010-05-27  Jan Hubicka  <jh@suse.cz>
 
+	* cgraph.h (struct cgraph_node): Mark former_clone_of by GTY ((skip)).
+	* cgraphunit.c (clone_of_p): Compile only when checking is enabled.
+
+2010-05-27  Jan Hubicka  <jh@suse.cz>
+
 	* sched-ebb.c: Rename struct deps to struct deps_desc.
 	* ddg.c: Likewise.
 	* sel-sched-ir.c: Likewise.

gcc/cgraph.h

@@ -227,8 +227,9 @@ struct GTY((chain_next ("%h.next"), chain_prev ("%h.previous"))) cgraph_node {
      to the edge to speed up cgraph_edge function.  */
   htab_t GTY((param_is (struct cgraph_edge))) call_site_hash;
 #ifdef ENABLE_CHECKING
-  /* Declaration node used to be clone of.  Used for checking only.  */
-  tree former_clone_of;
+  /* Declaration node used to be clone of.  Used for checking only. 
+     We must skip it or we get references from release checking GGC files. */
+  tree GTY ((skip)) former_clone_of;
 #endif
 
   PTR GTY ((skip)) aux;

gcc/cgraphunit.c

@@ -557,6 +557,7 @@ cgraph_mark_if_needed (tree decl)
     cgraph_mark_needed_node (node);
 }
 
+#ifdef ENABLE_CHECKING
 /* Return TRUE if NODE2 is equivalent to NODE or its clone.  */
 static bool
 clone_of_p (struct cgraph_node *node, struct cgraph_node *node2)
@@ -565,6 +566,7 @@ clone_of_p (struct cgraph_node *node, struct cgraph_node *node2)
     node2 = node2->clone_of;
   return node2 != NULL;
 }
+#endif
 
 /* Verify cgraph nodes of given cgraph node.  */
 void