[Interpreter] Enable tracing of bytecode handler dispatches.

src/d8.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 // Defined when linking against shared lib on Windows.
 #if defined(USING_V8_SHARED) && !defined(V8_SHARED)
 #define V8_SHARED
 #endif
 
@@ skipping 23 matching lines @@
 #include "src/ostreams.h"
 
 #include "include/libplatform/libplatform.h"
 #ifndef V8_SHARED
 #include "src/api.h"
 #include "src/base/cpu.h"
 #include "src/base/logging.h"
 #include "src/base/platform/platform.h"
 #include "src/base/sys-info.h"
 #include "src/basic-block-profiler.h"
+#include "src/interpreter/interpreter.h"
 #include "src/snapshot/natives.h"
 #include "src/utils.h"
 #include "src/v8.h"
 #endif  // !V8_SHARED
 
 #if !defined(_WIN32) && !defined(_WIN64)
 #include <unistd.h>  // NOLINT
 #else
 #include <windows.h>  // NOLINT
 #if defined(_MSC_VER)
@@ skipping 1251 matching lines @@
         printf("| c:%-60s | %11i |\n", key, counter->count());
         printf("| t:%-60s | %11i |\n", key, counter->sample_total());
       } else {
         printf("| %-62s | %11i |\n", key, counter->count());
       }
     }
     printf("+----------------------------------------------------------------+"
            "-------------+\n");
     delete [] counters;
   }
+
+  if (i::FLAG_trace_ignition_dispatches) {
+    reinterpret_cast<i::Isolate*>(isolate)
+        ->interpreter()
+        ->WriteDispatchCounters();
+  }
+
   delete counters_file_;
   delete counter_map_;
 #endif  // !V8_SHARED
 }
 
 
 
 static FILE* FOpen(const char* path, const char* mode) {
 #if defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64))
   FILE* result;
@@ skipping 1173 matching lines @@
 }
 
 }  // namespace v8
 
 
 #ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
 #endif