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comparison 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
comparison
equal deleted inserted replaced
14435:da862781b584 14436:b0133e4187d3
90 \ 90 \
91 /* Trap based checks. */ \ 91 /* Trap based checks. */ \
92 /* Trap based checks use the ppc trap instructions to check certain */ \ 92 /* Trap based checks use the ppc trap instructions to check certain */ \
93 /* conditions. This instruction raises a SIGTRAP caught by the */ \ 93 /* conditions. This instruction raises a SIGTRAP caught by the */ \
94 /* exception handler of the VM. */ \ 94 /* exception handler of the VM. */ \
95 product(bool, UseSIGTRAP, false, \ 95 product(bool, UseSIGTRAP, true, \
96 "Allow trap instructions that make use of SIGTRAP. Use this to " \ 96 "Allow trap instructions that make use of SIGTRAP. Use this to " \
97 "switch off all optimizations requiring SIGTRAP.") \ 97 "switch off all optimizations requiring SIGTRAP.") \
98 product(bool, TrapBasedICMissChecks, true, \ 98 product(bool, TrapBasedICMissChecks, true, \
99 "Raise and handle SIGTRAP if inline cache miss detected.") \ 99 "Raise and handle SIGTRAP if inline cache miss detected.") \
100 product(bool, TrapBasedNotEntrantChecks, true, \ 100 product(bool, TrapBasedNotEntrantChecks, true, \