diff -r 1a767c61ad01 -r 96964ebdb154 src/share/vm/opto/c2_globals.hpp
--- a/src/share/vm/opto/c2_globals.hpp	Tue Jan 06 16:10:11 2009 -0800
+++ b/src/share/vm/opto/c2_globals.hpp	Wed Jan 07 11:04:45 2009 -0800
@@ -191,6 +191,9 @@
   notproduct(bool, VerifyHashTableKeys, true,                               \
           "Verify the immutability of keys in the VN hash tables")          \
                                                                             \
+  notproduct(bool, VerifyRegisterAllocator , false,                         \
+          "Verify Register Allocator")                                      \
+                                                                            \
   develop_pd(intx, FLOATPRESSURE,                                           \
           "Number of float LRG's that constitute high register pressure")   \
                                                                             \