39
40 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks.
41 define_pd_global(bool, TrapBasedNullChecks, true);
42 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast.
43
44 define_pd_global(uintx, CodeCacheSegmentSize, 256);
45 // This shall be at least 32 for proper branch target alignment.
46 // Ideally, this is 256 (cache line size). This keeps code end data
47 // on separate lines. But we reduced it to 64 since 256 increased
48 // code size significantly by padding nops between IVC and second UEP.
49 define_pd_global(intx, CodeEntryAlignment, 64);
50 define_pd_global(intx, OptoLoopAlignment, 2);
51 define_pd_global(intx, InlineFrequencyCount, 100);
52 define_pd_global(intx, InlineSmallCode, 2000);
53
54 #define DEFAULT_STACK_YELLOW_PAGES (2)
55 #define DEFAULT_STACK_RED_PAGES (1)
56 // Java_java_net_SocketOutputStream_socketWrite0() uses a 64k buffer on the
57 // stack. To pass stack overflow tests we need 20 shadow pages.
58 #define DEFAULT_STACK_SHADOW_PAGES (20 DEBUG_ONLY(+2))
59 #define DEFAULT_STACK_RESERVED_PAGES (0)
60
61 #define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
62 #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
63 #define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES
64 #define MIN_STACK_RESERVED_PAGES (0)
65
66 define_pd_global(intx, StackYellowPages, DEFAULT_STACK_YELLOW_PAGES);
67 define_pd_global(intx, StackRedPages, DEFAULT_STACK_RED_PAGES);
68 define_pd_global(intx, StackShadowPages, DEFAULT_STACK_SHADOW_PAGES);
69 define_pd_global(intx, StackReservedPages, DEFAULT_STACK_RESERVED_PAGES);
70
71 define_pd_global(bool, RewriteBytecodes, true);
72 define_pd_global(bool, RewriteFrequentPairs, true);
73
74 define_pd_global(bool, UseMembar, false);
75
76 define_pd_global(bool, PreserveFramePointer, false);
77
78 // GC Ergo Flags
79 define_pd_global(size_t, CMSYoungGenPerWorker, 16*M); // Default max size of CMS young gen, per GC worker thread.
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39
40 define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks.
41 define_pd_global(bool, TrapBasedNullChecks, true);
42 define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast.
43
44 define_pd_global(uintx, CodeCacheSegmentSize, 256);
45 // This shall be at least 32 for proper branch target alignment.
46 // Ideally, this is 256 (cache line size). This keeps code end data
47 // on separate lines. But we reduced it to 64 since 256 increased
48 // code size significantly by padding nops between IVC and second UEP.
49 define_pd_global(intx, CodeEntryAlignment, 64);
50 define_pd_global(intx, OptoLoopAlignment, 2);
51 define_pd_global(intx, InlineFrequencyCount, 100);
52 define_pd_global(intx, InlineSmallCode, 2000);
53
54 #define DEFAULT_STACK_YELLOW_PAGES (2)
55 #define DEFAULT_STACK_RED_PAGES (1)
56 // Java_java_net_SocketOutputStream_socketWrite0() uses a 64k buffer on the
57 // stack. To pass stack overflow tests we need 20 shadow pages.
58 #define DEFAULT_STACK_SHADOW_PAGES (20 DEBUG_ONLY(+2))
59 #define DEFAULT_STACK_RESERVED_PAGES (1)
60
61 #define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES
62 #define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES
63 #define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES
64 #define MIN_STACK_RESERVED_PAGES (0)
65
66 define_pd_global(intx, StackYellowPages, DEFAULT_STACK_YELLOW_PAGES);
67 define_pd_global(intx, StackRedPages, DEFAULT_STACK_RED_PAGES);
68 define_pd_global(intx, StackShadowPages, DEFAULT_STACK_SHADOW_PAGES);
69 define_pd_global(intx, StackReservedPages, DEFAULT_STACK_RESERVED_PAGES);
70
71 define_pd_global(bool, RewriteBytecodes, true);
72 define_pd_global(bool, RewriteFrequentPairs, true);
73
74 define_pd_global(bool, UseMembar, false);
75
76 define_pd_global(bool, PreserveFramePointer, false);
77
78 // GC Ergo Flags
79 define_pd_global(size_t, CMSYoungGenPerWorker, 16*M); // Default max size of CMS young gen, per GC worker thread.
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