src/share/vm/runtime/simpleThresholdPolicy.hpp

Print this page




  81 
  82   // Get a compilation level for a given method.
  83   static CompLevel comp_level(Method* method) {
  84     nmethod *nm = method->code();
  85     if (nm != NULL && nm->is_in_use()) {
  86       return (CompLevel)nm->comp_level();
  87     }
  88     return CompLevel_none;
  89   }
  90   virtual void method_invocation_event(methodHandle method, methodHandle inlinee,
  91                                        CompLevel level, nmethod* nm, JavaThread* thread);
  92   virtual void method_back_branch_event(methodHandle method, methodHandle inlinee,
  93                                         int bci, CompLevel level, nmethod* nm, JavaThread* thread);
  94 public:
  95   SimpleThresholdPolicy() : _c1_count(0), _c2_count(0) { }
  96   virtual int compiler_count(CompLevel comp_level) {
  97     if (is_c1_compile(comp_level)) return c1_count();
  98     if (is_c2_compile(comp_level)) return c2_count();
  99     return 0;
 100   }
 101   virtual CompLevel initial_compile_level() { return MIN2((CompLevel)TieredStopAtLevel, CompLevel_initial_compile); }
 102   virtual void do_safepoint_work() { }
 103   virtual void delay_compilation(Method* method) { }
 104   virtual void disable_compilation(Method* method) { }
 105   virtual void reprofile(ScopeDesc* trap_scope, bool is_osr);
 106   virtual nmethod* event(methodHandle method, methodHandle inlinee,
 107                          int branch_bci, int bci, CompLevel comp_level, nmethod* nm, JavaThread* thread);
 108   // Select task is called by CompileBroker. We should return a task or NULL.
 109   virtual CompileTask* select_task(CompileQueue* compile_queue);
 110   // Tell the runtime if we think a given method is adequately profiled.
 111   virtual bool is_mature(Method* method);
 112   // Initialize: set compiler thread count
 113   virtual void initialize();
 114   virtual bool should_not_inline(ciEnv* env, ciMethod* callee) {
 115     return (env->comp_level() == CompLevel_limited_profile ||
 116             env->comp_level() == CompLevel_full_profile) &&
 117             callee->has_loops();
 118   }
 119 };
 120 
 121 #endif // SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_HPP


  81 
  82   // Get a compilation level for a given method.
  83   static CompLevel comp_level(Method* method) {
  84     nmethod *nm = method->code();
  85     if (nm != NULL && nm->is_in_use()) {
  86       return (CompLevel)nm->comp_level();
  87     }
  88     return CompLevel_none;
  89   }
  90   virtual void method_invocation_event(methodHandle method, methodHandle inlinee,
  91                                        CompLevel level, nmethod* nm, JavaThread* thread);
  92   virtual void method_back_branch_event(methodHandle method, methodHandle inlinee,
  93                                         int bci, CompLevel level, nmethod* nm, JavaThread* thread);
  94 public:
  95   SimpleThresholdPolicy() : _c1_count(0), _c2_count(0) { }
  96   virtual int compiler_count(CompLevel comp_level) {
  97     if (is_c1_compile(comp_level)) return c1_count();
  98     if (is_c2_compile(comp_level)) return c2_count();
  99     return 0;
 100   }
 101   virtual CompLevel initial_compile_level() { return MIN2((CompLevel)TieredStopAtLevel, (CompLevel)TieredStartAtLevel); }
 102   virtual void do_safepoint_work() { }
 103   virtual void delay_compilation(Method* method) { }
 104   virtual void disable_compilation(Method* method) { }
 105   virtual void reprofile(ScopeDesc* trap_scope, bool is_osr);
 106   virtual nmethod* event(methodHandle method, methodHandle inlinee,
 107                          int branch_bci, int bci, CompLevel comp_level, nmethod* nm, JavaThread* thread);
 108   // Select task is called by CompileBroker. We should return a task or NULL.
 109   virtual CompileTask* select_task(CompileQueue* compile_queue);
 110   // Tell the runtime if we think a given method is adequately profiled.
 111   virtual bool is_mature(Method* method);
 112   // Initialize: set compiler thread count
 113   virtual void initialize();
 114   virtual bool should_not_inline(ciEnv* env, ciMethod* callee) {
 115     return (env->comp_level() == CompLevel_limited_profile ||
 116             env->comp_level() == CompLevel_full_profile) &&
 117             callee->has_loops();
 118   }
 119 };
 120 
 121 #endif // SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_HPP