src/cpu/x86/vm/globals_x86.hpp

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

*** 35,45 ****
  define_pd_global(bool, ShareVtableStubs,         true);
  define_pd_global(bool, CountInterpCalls,         true);
  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, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
  
  // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
  // assign a different value for C2 without touching a number of files. Use
  // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
  // c1 doesn't have this problem because the fix to 4858033 assures us
--- 35,46 ----
  define_pd_global(bool, ShareVtableStubs,         true);
  define_pd_global(bool, CountInterpCalls,         true);
  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,      false); // Not needed on x86.
! define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs passed to check cast
  
  // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
  // assign a different value for C2 without touching a number of files. Use
  // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
  // c1 doesn't have this problem because the fix to 4858033 assures us