Mercurial > hg > graal-jvmci-8
comparison src/cpu/sparc/vm/globals_sparc.hpp @ 14440:41b780b43b74
8029015: PPC64 (part 216): opto: trap based null and range checks
Summary: On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks.
Reviewed-by: kvn
author | goetz |
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date | Wed, 27 Nov 2013 16:16:21 -0800 |
parents | d13d7aba8c12 |
children | abec000618bf |
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14439:50fdb38839eb | 14440:41b780b43b74 |
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41 define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress | 41 define_pd_global(bool, ShareVtableStubs, false); // improves performance markedly for mtrt and compress |
42 define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter | 42 define_pd_global(bool, CountInterpCalls, false); // not implemented in the interpreter |
43 define_pd_global(bool, NeedsDeoptSuspend, true); // register window machines need this | 43 define_pd_global(bool, NeedsDeoptSuspend, true); // register window machines need this |
44 | 44 |
45 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks | 45 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks |
46 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast | 46 define_pd_global(bool, TrapBasedNullChecks, false); // Not needed on sparc. |
47 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast | |
47 | 48 |
48 define_pd_global(intx, CodeEntryAlignment, 32); | 49 define_pd_global(intx, CodeEntryAlignment, 32); |
49 // The default setting 16/16 seems to work best. | 50 // The default setting 16/16 seems to work best. |
50 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) | 51 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) |
51 define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize | 52 define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize |