work around callgraph/cgana problems

[r22189]

diff --git a/ir/ana/callgraph.c b/ir/ana/callgraph.c
index b03a0f0..b9102de 100644 (file)
--- a/ir/ana/callgraph.c
+++ b/ir/ana/callgraph.c
@@ -388,7 +388,7 @@ static void do_walk(ir_graph *irg, callgraph_walk_func *pre, callgraph_walk_func
 
 void callgraph_walk(ir_entity **roots, unsigned n_roots,
                callgraph_walk_func *pre, callgraph_walk_func *post, void *env) {
-       //int i, n_irgs = get_irp_n_irgs();
+       int i, n_irgs = get_irp_n_irgs();
        unsigned r;
        ++master_cg_visited;
 
@@ -400,18 +400,15 @@ void callgraph_walk(ir_entity **roots, unsigned n_roots,
                do_walk(irg, pre, post, env);
        }
 
-#if 0
-       for (i = 0; i < n_irgs; i++) {
-               ir_graph *irg = get_irp_irg(i);
-               if (!cg_irg_visited(irg) && get_irg_n_callers(irg) == 0)
-                       do_walk(irg, pre, post, env);
-       }
+       /* cgana "optimizes" the graph instead of just analysing it so the
+        * roots list isn't even correct anymore when passed to this method...
+        * so we hack around this and search for more unreferenced/free
+        * methods... */
        for (i = 0; i < n_irgs; i++) {
                ir_graph *irg = get_irp_irg(i);
                if (!cg_irg_visited(irg))
                        do_walk(irg, pre, post, env);
        }
-#endif
 }
 
 /* ----------------------------------------------------------------------------------- */