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diff src/cpu/ppc/vm/globals_ppc.hpp @ 14436:b0133e4187d3

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8028471: PPC64 (part 215): opto: Extend ImplicitNullCheck optimization. Summary: Fixed Implicit NULL check optimization for AIX, where the page at address '0' is only write-protected. Reviewed-by: kvn
author goetz
date Thu, 21 Nov 2013 18:29:34 -0800
parents 2e3c546f46d9
children 41b780b43b74
line wrap: on
line diff
--- a/src/cpu/ppc/vm/globals_ppc.hpp	Thu Nov 21 12:30:35 2013 -0800
+++ b/src/cpu/ppc/vm/globals_ppc.hpp	Thu Nov 21 18:29:34 2013 -0800
@@ -92,7 +92,7 @@
   /* Trap based checks use the ppc trap instructions to check certain */    \
   /* conditions. This instruction raises a SIGTRAP caught by the      */    \
   /* exception handler of the VM.                                     */    \
-  product(bool, UseSIGTRAP, false,                                          \
+  product(bool, UseSIGTRAP, true,                                           \
           "Allow trap instructions that make use of SIGTRAP. Use this to "  \
           "switch off all optimizations requiring SIGTRAP.")                \
   product(bool, TrapBasedICMissChecks, true,                                \