Added comment

[libfirm] / ir / ir / irgwalk.c

diff --git a/ir/ir/irgwalk.c b/ir/ir/irgwalk.c
index b46a936..3c5ddac 100644 (file)
--- a/ir/ir/irgwalk.c
+++ b/ir/ir/irgwalk.c
@@ -28,6 +28,8 @@
 # include "irprog.h"
 # include "irgwalk.h"
 # include "typewalk.h"
+# include "firmstat.h"
+# include "ircgcons.h"
 
 # include "eset.h"
 # include "array.h"
@@ -150,10 +152,13 @@ irg_walk_2(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void * env)
 void irg_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void *env)
 {
   assert(node  && node->kind==k_ir_node);
+
   if (interprocedural_view) {
     eset * irg_set = eset_create();
     int visited;
     ir_graph * irg;
+    assert(get_irp_ip_view_state() == ip_view_valid);
+
     interprocedural_view = false;
     eset_insert(irg_set, current_ir_graph);
     irg_walk(node, (irg_walk_func *) collect_irgs, NULL, irg_set);
@@ -174,6 +179,8 @@ void irg_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void *env)
 
 void irg_walk_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *env) {
   ir_graph * rem = current_ir_graph;
+
+  stat_irg_walk(irg, (void *)pre, (void *)post);
   current_ir_graph = irg;
   irg_walk(get_irg_end(irg), pre, post, env);
   current_ir_graph = rem;
@@ -234,7 +241,8 @@ cg_walk_2(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void * env)
     if (is_no_Block(node))
       cg_walk_2(get_nodes_block(node), pre, post, env);
     for (i = get_irn_arity(node) - 1; i >= 0; --i) {
-      rem = switch_irg(node, i);
+      rem = switch_irg(node, i);  /* @@@ AS: Is this wrong? We do have to
+                                             switch to the irg of the predecessor, don't we? */
       cg_walk_2(get_irn_n(node, i), pre, post, env);
       current_ir_graph = rem;
     }
@@ -324,7 +332,6 @@ static ir_node *get_cf_op(ir_node *n) {
 static void irg_block_walk_2(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void *env)
 {
   int i;
-  assert(get_irn_opcode(node) == iro_Block);
 
   if(get_Block_block_visited(node) < get_irg_block_visited(current_ir_graph)) {
     set_Block_block_visited(node, get_irg_block_visited(current_ir_graph));
@@ -357,6 +364,8 @@ void irg_block_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post, void
   ir_node *block, *pred;
   int i;
 
+  stat_irg_block_walk(current_ir_graph, node, (void *)pre, (void *)post);
+
   assert(node);
   assert(!interprocedural_view);   /* interprocedural_view not implemented, because it
                                    * interleaves with irg_walk */