84 define_pd_global(bool, RewriteFrequentPairs, true);
  85 
  86 // GC Ergo Flags
  87 define_pd_global(size_t, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
  88 
  89 define_pd_global(uintx, TypeProfileLevel, 111);
  90 
  91 define_pd_global(bool, CompactStrings, true);
  92 
  93 define_pd_global(bool, PreserveFramePointer, false);
  94 
  95 define_pd_global(intx, InitArrayShortSize, 8*BytesPerLong);
  96 
  97 #if defined(_LP64) || defined(_WINDOWS)
  98 define_pd_global(bool, ThreadLocalHandshakes, true);
  99 #else
 100 // get_thread() is slow on linux 32 bit, therefore off by default
 101 define_pd_global(bool, ThreadLocalHandshakes, false);
 102 #endif
 103 



 104 #define ARCH_FLAGS(develop, \
 105                    product, \
 106                    diagnostic, \
 107                    experimental, \
 108                    notproduct, \
 109                    range, \
 110                    constraint, \
 111                    writeable) \
 112                                                                             \
 113   develop(bool, IEEEPrecision, true,                                        \
 114           "Enables IEEE precision (for INTEL only)")                        \
 115                                                                             \
 116   product(bool, UseStoreImmI16, true,                                       \
 117           "Use store immediate 16-bits value instruction on x86")           \
 118                                                                             \
 119   product(intx, UseAVX, 3,                                                  \
 120           "Highest supported AVX instructions set on x86/x64")              \
 121           range(0, 99)                                                      \
 122                                                                             \
 123   product(bool, UseCLMUL, false,                                            \

  84 define_pd_global(bool, RewriteFrequentPairs, true);
  85 
  86 // GC Ergo Flags
  87 define_pd_global(size_t, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
  88 
  89 define_pd_global(uintx, TypeProfileLevel, 111);
  90 
  91 define_pd_global(bool, CompactStrings, true);
  92 
  93 define_pd_global(bool, PreserveFramePointer, false);
  94 
  95 define_pd_global(intx, InitArrayShortSize, 8*BytesPerLong);
  96 
  97 #if defined(_LP64) || defined(_WINDOWS)
  98 define_pd_global(bool, ThreadLocalHandshakes, true);
  99 #else
 100 // get_thread() is slow on linux 32 bit, therefore off by default
 101 define_pd_global(bool, ThreadLocalHandshakes, false);
 102 #endif
 103 
 104 define_pd_global(bool, ValueTypePassFieldsAsArgs, LP64_ONLY(true) NOT_LP64(false));
 105 define_pd_global(bool, ValueTypeReturnedAsFields, LP64_ONLY(true) NOT_LP64(false));
 106 
 107 #define ARCH_FLAGS(develop, \
 108                    product, \
 109                    diagnostic, \
 110                    experimental, \
 111                    notproduct, \
 112                    range, \
 113                    constraint, \
 114                    writeable) \
 115                                                                             \
 116   develop(bool, IEEEPrecision, true,                                        \
 117           "Enables IEEE precision (for INTEL only)")                        \
 118                                                                             \
 119   product(bool, UseStoreImmI16, true,                                       \
 120           "Use store immediate 16-bits value instruction on x86")           \
 121                                                                             \
 122   product(intx, UseAVX, 3,                                                  \
 123           "Highest supported AVX instructions set on x86/x64")              \
 124           range(0, 99)                                                      \
 125                                                                             \
 126   product(bool, UseCLMUL, false,                                            \