2004-07-16 Frank Ch. Eigler <fche@redhat.com>

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

diff --git a/gcc/cfgloop.c b/gcc/cfgloop.c
index 3d13386..7709a03 100644 (file)
--- a/gcc/cfgloop.c
+++ b/gcc/cfgloop.c
@@ -101,6 +101,20 @@ flow_loop_nested_p (const struct loop *outer, const struct loop *loop)
         && loop->pred[outer->depth] == outer;
 }
 
+/* Returns superloop of LOOP at given DEPTH.  */
+
+struct loop *
+superloop_at_depth (struct loop *loop, unsigned depth)
+{
+  if (depth > (unsigned) loop->depth)
+    abort ();
+
+  if (depth == (unsigned) loop->depth)
+    return loop;
+
+  return loop->pred[depth];
+}
+
 /* Dump the loop information specified by LOOP to the stream FILE
    using auxiliary dump callback function LOOP_DUMP_AUX if non null.  */