hotspot/src/share/vm/jvmci/jvmci_globals.hpp
author ccheung
Thu, 07 Apr 2016 22:03:04 -0700
changeset 37439 e8970711113b
parent 36313 e7eff81d7f1d
child 38273 2634194d7555
permissions -rw-r--r--
8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive Summary: This optimization reduces the size of the RW region of the CDS archive. It also reduces the amount of pages in the RW region that are actually written into during runtime. Reviewed-by: dlong, iklam, jiangli Contributed-by: ioi.lam@oracle.com, calvin.cheung@oracle.com, goetz.lindenmaier@sap.com

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#ifndef SHARE_VM_JVMCI_JVMCIGLOBALS_HPP
#define SHARE_VM_JVMCI_JVMCIGLOBALS_HPP

#include "runtime/globals.hpp"

//
// Defines all global flags used by the JVMCI compiler. Only flags that need
// to be accessible to the JVMCI C++ code should be defined here. All other
// JVMCI flags should be defined in JVMCIOptions.java.
//
#define JVMCI_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct, range, constraint) \
                                                                            \
  experimental(bool, EnableJVMCI, false,                                    \
          "Enable JVMCI")                                                   \
                                                                            \
  experimental(bool, UseJVMCICompiler, false,                               \
          "Use JVMCI as the default compiler")                              \
                                                                            \
  experimental(bool, BootstrapJVMCI, false,                                 \
          "Bootstrap JVMCI before running Java main method")                \
                                                                            \
  experimental(bool, PrintBootstrap, true,                                  \
          "Print JVMCI bootstrap progress and summary")                     \
                                                                            \
  experimental(intx, JVMCIThreads, 1,                                       \
          "Force number of JVMCI compiler threads to use")                  \
          range(1, max_jint)                                                \
                                                                            \
  experimental(intx, JVMCIHostThreads, 1,                                   \
          "Force number of compiler threads for JVMCI host compiler")       \
          range(1, max_jint)                                                \
                                                                            \
  experimental(bool, CodeInstallSafepointChecks, true,                      \
          "Perform explicit safepoint checks while installing code")        \
                                                                            \
  NOT_COMPILER2(product(intx, MaxVectorSize, 64,                            \
          "Max vector size in bytes, "                                      \
          "actual size could be less depending on elements type"))          \
                                                                            \
  NOT_COMPILER2(product(bool, ReduceInitialCardMarks, true,                 \
          "Defer write barriers of young objects"))                         \
                                                                            \
  experimental(intx, JVMCITraceLevel, 0,                                    \
          "Trace level for JVMCI: "                                         \
          "1 means emit a message for each CompilerToVM call,"              \
          "levels greater than 1 provide progressively greater detail")     \
                                                                            \
  experimental(intx, JVMCICounterSize, 0,                                   \
          "Reserved size for benchmark counters")                           \
          range(0, max_jint)                                                \
                                                                            \
  experimental(bool, JVMCICountersExcludeCompiler, true,                    \
          "Exclude JVMCI compiler threads from benchmark counters")         \
                                                                            \
  develop(bool, JVMCIUseFastLocking, true,                                  \
          "Use fast inlined locking code")                                  \
                                                                            \
  experimental(intx, JVMCINMethodSizeLimit, (80*K)*wordSize,                \
          "Maximum size of a compiled method.")                             \
                                                                            \
  develop(bool, TraceUncollectedSpeculations, false,                        \
          "Print message when a failed speculation was not collected")


// Read default values for JVMCI globals

JVMCI_FLAGS(DECLARE_DEVELOPER_FLAG, \
            DECLARE_PD_DEVELOPER_FLAG, \
            DECLARE_PRODUCT_FLAG, \
            DECLARE_PD_PRODUCT_FLAG, \
            DECLARE_DIAGNOSTIC_FLAG, \
            DECLARE_EXPERIMENTAL_FLAG, \
            DECLARE_NOTPRODUCT_FLAG, \
            IGNORE_RANGE, \
            IGNORE_CONSTRAINT)

class JVMCIGlobals {
 public:
  // Return true if jvmci flags are consistent.
  static bool check_jvmci_flags_are_consistent();
  // Print jvmci arguments inconsistency error message.
  static void print_jvmci_args_inconsistency_error_message();
};
#endif // SHARE_VM_JVMCI_JVMCIGLOBALS_HPP