--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/ExecutionEngine/IntelJITEvents/IntelJITEventsWrapper.h	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,96 @@
+//===-- IntelJITEventsWrapper.h - Intel JIT Events API Wrapper --*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a wrapper for the Intel JIT Events API. It allows for the
+// implementation of the jitprofiling library to be swapped with an alternative
+// implementation (for testing). To include this file, you must have the
+// jitprofiling.h header available; it is available in Intel(R) VTune(TM)
+// Amplifier XE 2011.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INTEL_JIT_EVENTS_WRAPPER_H
+#define INTEL_JIT_EVENTS_WRAPPER_H
+
+#include "jitprofiling.h"
+
+namespace llvm {
+
+class IntelJITEventsWrapper {
+  // Function pointer types for testing implementation of Intel jitprofiling
+  // library
+  typedef int (*NotifyEventPtr)(iJIT_JVM_EVENT, void*);
+  typedef void (*RegisterCallbackExPtr)(void *, iJIT_ModeChangedEx );
+  typedef iJIT_IsProfilingActiveFlags (*IsProfilingActivePtr)(void);
+  typedef void (*FinalizeThreadPtr)(void);
+  typedef void (*FinalizeProcessPtr)(void);
+  typedef unsigned int (*GetNewMethodIDPtr)(void);
+
+  NotifyEventPtr NotifyEventFunc;
+  RegisterCallbackExPtr RegisterCallbackExFunc;
+  IsProfilingActivePtr IsProfilingActiveFunc;
+  GetNewMethodIDPtr GetNewMethodIDFunc;
+
+public:
+  bool isAmplifierRunning() {
+    return iJIT_IsProfilingActive() == iJIT_SAMPLING_ON;
+  }
+
+  IntelJITEventsWrapper()
+  : NotifyEventFunc(::iJIT_NotifyEvent),
+    RegisterCallbackExFunc(::iJIT_RegisterCallbackEx),
+    IsProfilingActiveFunc(::iJIT_IsProfilingActive),
+    GetNewMethodIDFunc(::iJIT_GetNewMethodID) {
+  }
+
+  IntelJITEventsWrapper(NotifyEventPtr NotifyEventImpl,
+                   RegisterCallbackExPtr RegisterCallbackExImpl,
+                   IsProfilingActivePtr IsProfilingActiveImpl,
+                   FinalizeThreadPtr FinalizeThreadImpl,
+                   FinalizeProcessPtr FinalizeProcessImpl,
+                   GetNewMethodIDPtr GetNewMethodIDImpl)
+  : NotifyEventFunc(NotifyEventImpl),
+    RegisterCallbackExFunc(RegisterCallbackExImpl),
+    IsProfilingActiveFunc(IsProfilingActiveImpl),
+    GetNewMethodIDFunc(GetNewMethodIDImpl) {
+  }
+
+  // Sends an event announcing that a function has been emitted
+  //   return values are event-specific.  See Intel documentation for details.
+  int  iJIT_NotifyEvent(iJIT_JVM_EVENT EventType, void *EventSpecificData) {
+    if (!NotifyEventFunc)
+      return -1;
+    return NotifyEventFunc(EventType, EventSpecificData);
+  }
+
+  // Registers a callback function to receive notice of profiling state changes
+  void iJIT_RegisterCallbackEx(void *UserData,
+                               iJIT_ModeChangedEx NewModeCallBackFuncEx) {
+    if (RegisterCallbackExFunc)
+      RegisterCallbackExFunc(UserData, NewModeCallBackFuncEx);
+  }
+
+  // Returns the current profiler mode
+  iJIT_IsProfilingActiveFlags iJIT_IsProfilingActive(void) {
+    if (!IsProfilingActiveFunc)
+      return iJIT_NOTHING_RUNNING;
+    return IsProfilingActiveFunc();
+  }
+
+  // Generates a locally unique method ID for use in code registration
+  unsigned int iJIT_GetNewMethodID(void) {
+    if (!GetNewMethodIDFunc)
+      return -1;
+    return GetNewMethodIDFunc();
+  }
+};
+
+} //namespace llvm
+
+#endif //INTEL_JIT_EVENTS_WRAPPER_H