diff -r f4edb0d9f109 -r 21d113ecbf6a hotspot/src/share/vm/opto/chaitin.cpp
--- a/hotspot/src/share/vm/opto/chaitin.cpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/hotspot/src/share/vm/opto/chaitin.cpp	Sun Apr 13 17:43:42 2008 -0400
@@ -682,6 +682,7 @@
           break;
         case Op_RegF:
         case Op_RegI:
+        case Op_RegN:
         case Op_RegFlags:
         case 0:                 // not an ideal register
           lrg.set_num_regs(1);