src/share/vm/jvmci/jvmciRuntime.hpp

@@ -64,26 +64,33 @@
   bool is_aborted() { return _abort; }
   void set_filename(char* path) {_filename = path; _lineNo = 0;}
 };
 
 class JVMCIRuntime: public AllStatic {
+ public:
+  // Constants describing whether JVMCI wants to be able to adjust the compilation
+  // level selected for a method by the VM compilation policy and if so, based on
+  // what information about the method being schedule for compilation.
+  enum CompLevelAdjustment {
+     none = 0,             // no adjustment
+     by_holder = 1,        // adjust based on declaring class of method
+     by_full_signature = 2 // adjust based on declaring class, name and signature of method
+  };
+
  private:
   static jobject _HotSpotJVMCIRuntime_instance;
   static bool _HotSpotJVMCIRuntime_initialized;
   static bool _well_known_classes_initialized;
 
   static int _trivial_prefixes_count;
   static char** _trivial_prefixes;
 
+  static CompLevelAdjustment _comp_level_adjustment;
+
   static bool _shutdown_called;
 
-  /**
-   * Instantiates a service object, calls its default constructor and returns it.
-   *
-   * @param name the name of a class implementing jdk.vm.ci.service.Service
-   */
-  static Handle create_Service(const char* name, TRAPS);
+  static CompLevel adjust_comp_level_inner(methodHandle method, bool is_osr, CompLevel level, JavaThread* thread);
 
  public:
   static bool is_HotSpotJVMCIRuntime_initialized() {
     return _HotSpotJVMCIRuntime_initialized;
   }

@@ -124,10 +131,22 @@
     return _shutdown_called;
   }
 
   static bool treat_as_trivial(Method* method);
 
+  /**
+   * Lets JVMCI modify the compilation level currently selected for a method by
+   * the VM compilation policy.
+   *
+   * @param method the method being scheduled for compilation
+   * @param is_osr specifies if the compilation is an OSR compilation
+   * @param level the compilation level currently selected by the VM compilation policy
+   * @param thread the current thread
+   * @return the compilation level to use for the compilation
+   */
+  static CompLevel adjust_comp_level(methodHandle method, bool is_osr, CompLevel level, JavaThread* thread);
+
   static BasicType kindToBasicType(Handle kind, TRAPS);
 
   // The following routines are all called from compiled JVMCI code
 
   static void new_instance(JavaThread* thread, Klass* klass);