diff -r 616a07a75c3c -r ea18057223c4 src/share/vm/opto/ifg.cpp
--- a/src/share/vm/opto/ifg.cpp	Thu Aug 14 10:15:29 2008 -0700
+++ b/src/share/vm/opto/ifg.cpp	Mon Aug 18 23:17:51 2008 -0700
@@ -594,7 +594,7 @@
 
           // Insure high score for immediate-use spill copies so they get a color
           if( n->is_SpillCopy()
-              && lrgs(r)._def != NodeSentinel     // MultiDef live range can still split
+              && lrgs(r).is_singledef()        // MultiDef live range can still split
               && n->outcnt() == 1              // and use must be in this block
               && _cfg._bbs[n->unique_out()->_idx] == b ) {
             // All single-use MachSpillCopy(s) that immediately precede their