src/share/vm/runtime/globals.hpp

rev 5728 : 8029015: PPC64 (part 216): opto: trap based null and range checks

@@ -2498,10 +2498,16 @@
           "Generate range checks for array accesses")                       \
                                                                             \
   develop_pd(bool, ImplicitNullChecks,                                      \
           "Generate code for implicit null checks")                         \
                                                                             \
+  product_pd(bool, TrapBasedNullChecks,                                     \
+          "Generate code for null checks that uses a cmp and trap "         \
+          "instruction raising SIGTRAP.  This is only used if an access to" \
+          "null (+offset) will not raise a SIGSEGV, i.e.,"                  \
+          "ImplicitNullChecks don't work (PPC64).")                         \
+                                                                            \
   product(bool, PrintSafepointStatistics, false,                            \
           "Print statistics about safepoint synchronization")               \
                                                                             \
   product(intx, PrintSafepointStatisticsCount, 300,                         \
           "Total number of safepoint statistics collected "                 \