* cfgloop.h (struct loop): Add nb_iterations field.

[pf3gnuchains/gcc-fork.git] / gcc / cfgloop.h

diff --git a/gcc/cfgloop.h b/gcc/cfgloop.h
index 01b8d64..8ccffd3 100644 (file)
--- a/gcc/cfgloop.h
+++ b/gcc/cfgloop.h
@@ -176,6 +176,13 @@ struct loop
      loops nested inside it.  */
   int exit_count;
 
+  /* The probable number of times the loop is executed at runtime.
+     This is an INTEGER_CST or an expression containing symbolic
+     names.  Don't access this field directly:
+     number_of_iterations_in_loop computes and caches the computed
+     information in this field.  */
+  tree nb_iterations;
+
   /* Upper bound on number of iterations of a loop.  */
   struct nb_iter_bound *bounds;
 };
@@ -227,6 +234,10 @@ struct loops
   int state;
 };
 
+/* The loop tree currently optimized.  */
+
+extern struct loops *current_loops;
+
 /* Flags for loop discovery.  */
 
 #define LOOP_TREE              1       /* Build loop hierarchy tree.  */