17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  27 #define CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Sets the default values for platform dependent flags used by the runtime system.
  33 // (see globals.hpp)
  34 
  35 define_pd_global(bool, ConvertSleepToYield,      true);
  36 define_pd_global(bool, ShareVtableStubs,         true);
  37 define_pd_global(bool, CountInterpCalls,         true);
  38 define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this
  39 
  40 define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
  41 define_pd_global(bool, TrapBasedNullChecks,  false);
  42 define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
  43 
  44 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
  45 // assign a different value for C2 without touching a number of files. Use
  46 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
  47 // c1 doesn't have this problem because the fix to 4858033 assures us
  48 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
  49 // the uep and the vep doesn't get real alignment but just slops on by
  50 // only assured that the entry instruction meets the 5 byte size requirement.
  51 #ifdef COMPILER2
  52 define_pd_global(intx, CodeEntryAlignment,       64);
  53 #else
  54 define_pd_global(intx, CodeEntryAlignment,       16);
  55 #endif // COMPILER2
  56 define_pd_global(intx, OptoLoopAlignment,        16);
  57 define_pd_global(intx, InlineFrequencyCount,     100);
  58 
  59 define_pd_global(intx, StackYellowPages, 2);
  60 define_pd_global(intx, StackRedPages, 1);
  61 
  62 define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));
  63 
  64 define_pd_global(intx, PreInflateSpin,           10);
  65 
  66 define_pd_global(bool, RewriteBytecodes,     true);
  67 define_pd_global(bool, RewriteFrequentPairs, true);
  68 
  69 define_pd_global(bool, UseMembar,            true);
  70 
  71 define_pd_global(bool, PreserveFramePointer, false);
  72 
  73 // GC Ergo Flags
  74 define_pd_global(uintx, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
  75 
  76 define_pd_global(uintx, TypeProfileLevel, 111);
  77 
  78 // avoid biased locking while we are bootstrapping the aarch64 build
  79 define_pd_global(bool, UseBiasedLocking, false);
  80 
  81 #if defined(COMPILER1) || defined(COMPILER2)
  82 define_pd_global(intx, InlineSmallCode,          1000);
  83 #endif
  84 

  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  27 #define CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Sets the default values for platform dependent flags used by the runtime system.
  33 // (see globals.hpp)
  34 
  35 define_pd_global(bool, ConvertSleepToYield,      true);
  36 define_pd_global(bool, ShareVtableStubs,         true);

  37 define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this
  38 
  39 define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
  40 define_pd_global(bool, TrapBasedNullChecks,  false);
  41 define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
  42 
  43 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
  44 // assign a different value for C2 without touching a number of files. Use
  45 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
  46 // c1 doesn't have this problem because the fix to 4858033 assures us
  47 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
  48 // the uep and the vep doesn't get real alignment but just slops on by
  49 // only assured that the entry instruction meets the 5 byte size requirement.
  50 #ifdef COMPILER2
  51 define_pd_global(intx, CodeEntryAlignment,       64);
  52 #else
  53 define_pd_global(intx, CodeEntryAlignment,       16);
  54 #endif // COMPILER2
  55 define_pd_global(intx, OptoLoopAlignment,        16);
  56 define_pd_global(intx, InlineFrequencyCount,     100);
  57 
  58 define_pd_global(intx, StackYellowPages, 2);
  59 define_pd_global(intx, StackRedPages, 1);
  60 
  61 define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));


  62 
  63 define_pd_global(bool, RewriteBytecodes,     true);
  64 define_pd_global(bool, RewriteFrequentPairs, true);
  65 
  66 define_pd_global(bool, UseMembar,            true);
  67 
  68 define_pd_global(bool, PreserveFramePointer, false);
  69 
  70 // GC Ergo Flags
  71 define_pd_global(uintx, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
  72 
  73 define_pd_global(uintx, TypeProfileLevel, 111);
  74 
  75 // avoid biased locking while we are bootstrapping the aarch64 build
  76 define_pd_global(bool, UseBiasedLocking, false);
  77 
  78 #if defined(COMPILER1) || defined(COMPILER2)
  79 define_pd_global(intx, InlineSmallCode,          1000);
  80 #endif
  81