2008-07-07 Martin Jambor <mjambor@suse.cz>

	* cgraph.c (cgraph_edge_max_uid): New variable.
	(struct cgraph_edge_hook_list): New type.
	(struct cgraph_node_hook_list): New type.
	(struct cgraph_2edge_hook_list): New type.
	(struct cgraph_2node_hook_list): New type.
	(first_cgraph_edge_removal_hook): New variable.
	(first_cgraph_node_removal_hook): New variable.
	(first_cgraph_edge_duplicated_hook): New variable.
	(first_cgraph_node_duplicated_hook): New variable.
	(cgraph_add_edge_removal_hook): New function.
	(cgraph_remove_edge_removal_hook): New function.
	(cgraph_call_edge_removal_hooks):  New function.
	(cgraph_add_node_removal_hook):  New function.
	(cgraph_remove_node_removal_hook):  New function.
	(cgraph_call_node_removal_hooks):  New function.
	(cgraph_add_edge_duplication_hook):  New function.
	(cgraph_remove_edge_duplication_hook):  New function.
	(cgraph_call_edge_duplication_hooks):  New function.
	(cgraph_add_node_duplication_hook):  New function.
	(cgraph_remove_node_duplication_hook):  New function.
	(cgraph_call_node_duplication_hooks):  New function.
	(cgraph_create_edge): Assign to edge uid.
	(cgraph_remove_edge): Call edge removal hooks.
	(cgraph_node_remove_callees): Call edge removal hooks.
	(cgraph_node_remove_callers): Call edge removal hooks.
	(cgraph_remove_node): Call node removal hooks.
	(cgraph_clone_edge): Call edge duplication hooks.
	(cgraph_clone_node): Call node duplication hooks.

	* cgraph.h (cgraph_edge): New field uid.
	(cgraph_edge_hook): New type.
	(cgraph_node_hook): New type.
	(cgraph_2edge_hook): New type.
	(cgraph_2node_hook): New type.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@137591 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 23 insertions, 0 deletions

diff --git a/gcc/cgraph.h b/gcc/cgraph.h
index dda2a1891f5..ee79c9200f1 100644
--- a/gcc/cgraph.h
+++ b/gcc/cgraph.h
@@ -209,6 +209,8 @@ struct cgraph_edge GTY((chain_next ("%h.next_caller"), chain_prev ("%h.prev_call
   int frequency;
   /* Depth of loop nest, 1 means no loop nest.  */
   int loop_nest;
+  /* Unique id of the edge.  */
+  int uid;
 };
 
 #define CGRAPH_FREQ_BASE 1000
@@ -266,6 +268,7 @@ struct cgraph_asm_node GTY(())
 extern GTY(()) struct cgraph_node *cgraph_nodes;
 extern GTY(()) int cgraph_n_nodes;
 extern GTY(()) int cgraph_max_uid;
+extern GTY(()) int cgraph_edge_max_uid;
 extern GTY(()) int cgraph_max_pid;
 extern bool cgraph_global_info_ready;
 enum cgraph_state
@@ -351,6 +354,26 @@ struct cgraph_node *save_inline_function_body (struct cgraph_node *);
 void record_references_in_initializer (tree);
 bool cgraph_process_new_functions (void);
 
+typedef void (*cgraph_edge_hook)(struct cgraph_edge *, void *);
+typedef void (*cgraph_node_hook)(struct cgraph_node *, void *);
+typedef void (*cgraph_2edge_hook)(struct cgraph_edge *, struct cgraph_edge *,
+				  void *);
+typedef void (*cgraph_2node_hook)(struct cgraph_node *, struct cgraph_node *,
+				  void *);
+struct cgraph_edge_hook_list;
+struct cgraph_node_hook_list;
+struct cgraph_2edge_hook_list;
+struct cgraph_2node_hook_list;
+struct cgraph_edge_hook_list *cgraph_add_edge_removal_hook (cgraph_edge_hook, void *);
+void cgraph_remove_edge_removal_hook (struct cgraph_edge_hook_list *);
+struct cgraph_node_hook_list *cgraph_add_node_removal_hook (cgraph_node_hook,
+							    void *);
+void cgraph_remove_node_removal_hook (struct cgraph_node_hook_list *);
+struct cgraph_2edge_hook_list *cgraph_add_edge_duplication_hook (cgraph_2edge_hook, void *);
+void cgraph_remove_edge_duplication_hook (struct cgraph_2edge_hook_list *);
+struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook (cgraph_2node_hook, void *);
+void cgraph_remove_node_duplication_hook (struct cgraph_2node_hook_list *);
+
 /* In cgraphbuild.c  */
 unsigned int rebuild_cgraph_edges (void);