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comparison src/cpu/x86/vm/globals_x86.hpp @ 14440:41b780b43b74

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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
date Wed, 27 Nov 2013 16:16:21 -0800
parents 5ccbab1c69f3
children d8041d695d19 9e9af3aa4278 62c54fcc0a35
comparison
equal deleted inserted replaced
14439:50fdb38839eb 14440:41b780b43b74
35 define_pd_global(bool, ShareVtableStubs, true); 35 define_pd_global(bool, ShareVtableStubs, true);
36 define_pd_global(bool, CountInterpCalls, true); 36 define_pd_global(bool, CountInterpCalls, true);
37 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this 37 define_pd_global(bool, NeedsDeoptSuspend, false); // only register window machines need this
38 38
39 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks 39 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks
40 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs past to check cast 40 define_pd_global(bool, TrapBasedNullChecks, false); // Not needed on x86.
41 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast
41 42
42 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't 43 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
43 // assign a different value for C2 without touching a number of files. Use 44 // assign a different value for C2 without touching a number of files. Use
44 // #ifdef to minimize the change as it's late in Mantis. -- FIXME. 45 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
45 // c1 doesn't have this problem because the fix to 4858033 assures us 46 // c1 doesn't have this problem because the fix to 4858033 assures us