*** old/src/share/vm/compiler/compileBroker.hpp	Wed Apr 13 14:48:45 2016
--- new/src/share/vm/compiler/compileBroker.hpp	Wed Apr 13 14:48:45 2016

*** 230,240 ****
--- 230,240 ----
                                            const methodHandle& method,
                                            int                 osr_bci,
                                            int                 comp_level,
                                            const methodHandle& hot_method,
                                            int                 hot_count,
!                                           const char*         comment,
!                                           int                 compile_reason,
                                            bool                blocking);
    static void wait_for_completion(CompileTask* task);
  #if INCLUDE_JVMCI
    static bool wait_for_jvmci_completion(JVMCICompiler* comp, CompileTask* task, JavaThread* thread);
  #endif

*** 249,268 ****
--- 249,287 ----
    static void compile_method_base(const methodHandle& method,
                                    int osr_bci,
                                    int comp_level,
                                    const methodHandle& hot_method,
                                    int hot_count,
!                                   const char* comment,
!                                   int compile_reason,
                                    bool blocking,
                                    Thread* thread);
  
    static CompileQueue* compile_queue(int comp_level);
    static bool init_compiler_runtime();
    static void shutdown_compiler_runtime(AbstractCompiler* comp, CompilerThread* thread);
  
  public:
  
+   // Different reasons for a compilation
+   // The order is important - Reason_Whitebox and higher can not become stale, see
+   // CompileTask::can_become_stale()
+   // Also mapped to reason_names[]
+   enum CompileReason {
+     Reason_None,
+     Reason_InvocationCount,  // Simple/StackWalk-policy
+     Reason_BackedgeCount,    // Simple/StackWalk-policy
+     Reason_Tiered,           // Tiered-policy
+     Reason_CTW,              // Compile the world
+     Reason_Replay,           // ciReplay
+     Reason_Whitebox,         // Whitebox API
+     Reason_MustBeCompiled,   // Java callHelper, LinkResolver
+     Reason_Bootstrap,        // JVMCI bootstrap
+     Reason_Count
+   };
+ 
+   static const char * reason_names[];
+ 
    static DirectivesStack* dirstack();
    static void set_dirstack(DirectivesStack* stack);
  
    enum {
      // The entry bci used for non-OSR compilations.

*** 287,304 ****
--- 306,323 ----
    static nmethod* compile_method(const methodHandle& method,
                                   int osr_bci,
                                   int comp_level,
                                   const methodHandle& hot_method,
                                   int hot_count,
!                                  const char* comment, Thread* thread);
!                                  int compile_reason, Thread* thread);
  
    static nmethod* compile_method(const methodHandle& method,
                                     int osr_bci,
                                     int comp_level,
                                     const methodHandle& hot_method,
                                     int hot_count,
!                                    const char* comment,
!                                    int compile_reason,
                                     DirectiveSet* directive,
                                     Thread* thread);
  
    // Acquire any needed locks and assign a compile id
    static uint assign_compile_id_unlocked(Thread* thread, const methodHandle& method, int osr_bci);