Pass PC offset into runtime when compiling for OSR.

src/optimizing-compiler-thread.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 53 matching lines @@
 
   void Run();
   void Stop();
   void Flush();
   void QueueForOptimization(OptimizingCompiler* optimizing_compiler);
   void InstallOptimizedFunctions();
   OptimizingCompiler* FindReadyOSRCandidate(Handle<JSFunction> function,
                                             uint32_t osr_pc_offset);
   bool IsQueuedForOSR(Handle<JSFunction> function, uint32_t osr_pc_offset);
 
-  // Remove the oldest OSR candidates that are ready so that we
-  // only have |limit| left waiting.
-  void RemoveStaleOSRCandidates(int limit = kReadyForOSRLimit);
+  bool IsQueuedForOSR(JSFunction* function);
 
   inline bool IsQueueAvailable() {
     // We don't need a barrier since we have a data dependency right
     // after.
     Atomic32 current_length = NoBarrier_Load(&queue_length_);
 
     // This can be queried only from the execution thread.
     ASSERT(!IsOptimizerThread());
     // Since only the execution thread increments queue_length_ and
     // only one thread can run inside an Isolate at one time, a direct
     // doesn't introduce a race -- queue_length_ may decreased in
     // meantime, but not increased.
     return (current_length < FLAG_concurrent_recompilation_queue_length);
   }
 
 #ifdef DEBUG
   bool IsOptimizerThread();
 #endif
 
  private:
   enum StopFlag { CONTINUE, STOP, FLUSH };
 
+  // Remove the oldest OSR candidates that are ready so that we
+  // only have |limit| left waiting.
+  void RemoveStaleOSRCandidates(int limit = kReadyForOSRLimit);
+
   void FlushInputQueue(bool restore_function_code);
   void FlushOutputQueue(bool restore_function_code);
   void CompileNext();
 
 #ifdef DEBUG
   int thread_id_;
   Mutex thread_id_mutex_;
 #endif
 
   Isolate* isolate_;
@@ skipping 18 matching lines @@
   Mutex osr_list_mutex_;
   int osr_hits_;
   int osr_attempts_;
 
   static const int kReadyForOSRLimit = 4;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OPTIMIZING_COMPILER_THREAD_H_