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diff src/share/vm/opto/loopnode.hpp @ 401:ee8f06bfb27c

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6743188: incomplete fix for 6700047 C2 failed in idom_no_update Reviewed-by: rasbold, kvn
author never
date Fri, 03 Oct 2008 13:58:20 -0700
parents 194b8e3a2fc4
children 98cb887364d3
line wrap: on
line diff
--- a/src/share/vm/opto/loopnode.hpp	Thu Oct 02 08:37:44 2008 -0700
+++ b/src/share/vm/opto/loopnode.hpp	Fri Oct 03 13:58:20 2008 -0700
@@ -325,12 +325,14 @@
   // Returns TRUE if loop tree is structurally changed.
   bool beautify_loops( PhaseIdealLoop *phase );
 
-  // Perform iteration-splitting on inner loops.  Split iterations to avoid
-  // range checks or one-shot null checks.
-  void iteration_split( PhaseIdealLoop *phase, Node_List &old_new );
+  // Perform iteration-splitting on inner loops.  Split iterations to
+  // avoid range checks or one-shot null checks.  Returns false if the
+  // current round of loop opts should stop.
+  bool iteration_split( PhaseIdealLoop *phase, Node_List &old_new );
 
-  // Driver for various flavors of iteration splitting
-  void iteration_split_impl( PhaseIdealLoop *phase, Node_List &old_new );
+  // Driver for various flavors of iteration splitting.  Returns false
+  // if the current round of loop opts should stop.
+  bool iteration_split_impl( PhaseIdealLoop *phase, Node_List &old_new );
 
   // Given dominators, try to find loops with calls that must always be
   // executed (call dominates loop tail).  These loops do not need non-call