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diff src/share/vm/opto/c2_globals.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 15120a36272d
children 2da20f966936
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--- a/src/share/vm/opto/c2_globals.hpp	Tue Nov 26 18:38:19 2013 -0800
+++ b/src/share/vm/opto/c2_globals.hpp	Wed Nov 27 16:16:21 2013 -0800
@@ -654,7 +654,11 @@
           "Propagate type improvements in callers of inlinee if possible")  \
                                                                             \
   experimental(bool, UseTypeSpeculation, false,                             \
-          "Speculatively propagate types from profiles")
+          "Speculatively propagate types from profiles")                    \
+                                                                            \
+  product_pd(bool, TrapBasedRangeChecks,                                    \
+          "Generate code for range checks that uses a cmp and trap "        \
+          "instruction raising SIGTRAP. Used on PPC64.")                    \
 
 C2_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG)