src/cpu/sparc/vm/globals_sparc.hpp

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

*** 41,51 ****
  define_pd_global(bool, ShareVtableStubs,            false); // improves performance markedly for mtrt and compress
  define_pd_global(bool, CountInterpCalls,            false); // not implemented in the interpreter
  define_pd_global(bool, NeedsDeoptSuspend,           true); // 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
  
  define_pd_global(intx, CodeEntryAlignment,    32);
  // The default setting 16/16 seems to work best.
  // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)
  define_pd_global(intx, OptoLoopAlignment,     16);  // = 4*wordSize
--- 41,52 ----
  define_pd_global(bool, ShareVtableStubs,            false); // improves performance markedly for mtrt and compress
  define_pd_global(bool, CountInterpCalls,            false); // not implemented in the interpreter
  define_pd_global(bool, NeedsDeoptSuspend,           true); // 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 sparc.
! define_pd_global(bool, UncommonNullCast,            true);  // Uncommon-trap NULLs passed to check cast
  
  define_pd_global(intx, CodeEntryAlignment,    32);
  // The default setting 16/16 seems to work best.
  // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)
  define_pd_global(intx, OptoLoopAlignment,     16);  // = 4*wordSize