src/cpu/ppc/vm/globals_ppc.hpp

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

*** 36,45 ****
--- 36,46 ----
  define_pd_global(bool, ShareVtableStubs,      false); // Improves performance markedly for mtrt and compress.
  define_pd_global(bool, NeedsDeoptSuspend,     false); // Only register window machines need this.
  
  
  define_pd_global(bool, ImplicitNullChecks,    true);  // Generate code for implicit null checks.
+ define_pd_global(bool, TrapBasedNullChecks,   true);
  define_pd_global(bool, UncommonNullCast,      true);  // Uncommon-trap NULLs passed to check cast.
  
  // Use large code-entry alignment.
  define_pd_global(intx, CodeEntryAlignment,    128);
  define_pd_global(intx, OptoLoopAlignment,     16);
*** 98,113 ****
    product(bool, TrapBasedICMissChecks, true,                                \
            "Raise and handle SIGTRAP if inline cache miss detected.")        \
    product(bool, TrapBasedNotEntrantChecks, true,                            \
            "Raise and handle SIGTRAP if calling not entrant or zombie"       \
            " method.")                                                       \
-   product(bool, TrapBasedNullChecks, true,                                  \
-           "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.")                       \
-   product(bool, TrapBasedRangeChecks, true,                                 \
-           "Raise and handle SIGTRAP if array out of bounds check fails.")   \
    product(bool, TraceTraps, false, "Trace all traps the signal handler"     \
            "handles.")                                                       \
                                                                              \
    product(bool, ZapMemory, false, "Write 0x0101... to empty memory."        \
            " Use this to ease debugging.")                                   \
--- 99,108 ----