/* Natural loop analysis code for GNU compiler.
- Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
edge e;
edge_iterator ei;
- if (loop->header->count)
+ if (loop->latch->count || loop->header->count)
{
gcov_type count_in, count_latch, expected;
return cost;
}
+/* Sets EDGE_LOOP_EXIT flag for all exits of LOOPS. */
+
+void
+mark_loop_exit_edges (struct loops *loops)
+{
+ basic_block bb;
+ edge e;
+
+ if (loops->num <= 1)
+ return;
+
+ FOR_EACH_BB (bb)
+ {
+ edge_iterator ei;
+
+ FOR_EACH_EDGE (e, ei, bb->succs)
+ {
+ if (bb->loop_father->outer
+ && loop_exit_edge_p (bb->loop_father, e))
+ e->flags |= EDGE_LOOP_EXIT;
+ else
+ e->flags &= ~EDGE_LOOP_EXIT;
+ }
+ }
+}
+