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diff src/cpu/sparc/vm/globals_sparc.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 d13d7aba8c12
children abec000618bf
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--- a/src/cpu/sparc/vm/globals_sparc.hpp	Tue Nov 26 18:38:19 2013 -0800
+++ b/src/cpu/sparc/vm/globals_sparc.hpp	Wed Nov 27 16:16:21 2013 -0800
@@ -43,7 +43,8 @@
 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(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.