[profiler] Web UI: add summary of opts/deopts.

src/code-events.h

 // Copyright 2016 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.
 
 #ifndef V8_CODE_EVENTS_H_
 #define V8_CODE_EVENTS_H_
 
 #include <unordered_set>
 
 #include "src/base/platform/mutex.h"
@@ skipping 87 matching lines @@
                                int args_count) = 0;
   virtual void CallbackEvent(Name* name, Address entry_point) = 0;
   virtual void GetterCallbackEvent(Name* name, Address entry_point) = 0;
   virtual void SetterCallbackEvent(Name* name, Address entry_point) = 0;
   virtual void RegExpCodeCreateEvent(AbstractCode* code, String* source) = 0;
   virtual void CodeMoveEvent(AbstractCode* from, Address to) = 0;
   virtual void SharedFunctionInfoMoveEvent(Address from, Address to) = 0;
   virtual void CodeMovingGCEvent() = 0;
   virtual void CodeDisableOptEvent(AbstractCode* code,
                                    SharedFunctionInfo* shared) = 0;
-  virtual void CodeDeoptEvent(Code* code, Address pc, int fp_to_sp_delta) = 0;
+  enum DeoptKind { kSoft, kLazy, kEager };
+  virtual void CodeDeoptEvent(DeoptKind kind, Code* code, Address pc,

[Leszek Swirski, 2017/03/21 14:28:39]

nit: it would be neater if the Code was the first parameter, for consistency
with the other methods.

+                              int fp_to_sp_delta) = 0;
 };
 
 class CodeEventDispatcher {
  public:
   using LogEventsAndTags = CodeEventListener::LogEventsAndTags;
 
   CodeEventDispatcher() {}
 
   bool AddListener(CodeEventListener* listener) {
     base::LockGuard<base::Mutex> guard(&mutex_);
@@ skipping 44 matching lines @@
   void CodeMoveEvent(AbstractCode* from, Address to) {
     CODE_EVENT_DISPATCH(CodeMoveEvent(from, to));
   }
   void SharedFunctionInfoMoveEvent(Address from, Address to) {
     CODE_EVENT_DISPATCH(SharedFunctionInfoMoveEvent(from, to));
   }
   void CodeMovingGCEvent() { CODE_EVENT_DISPATCH(CodeMovingGCEvent()); }
   void CodeDisableOptEvent(AbstractCode* code, SharedFunctionInfo* shared) {
     CODE_EVENT_DISPATCH(CodeDisableOptEvent(code, shared));
   }
-  void CodeDeoptEvent(Code* code, Address pc, int fp_to_sp_delta) {
-    CODE_EVENT_DISPATCH(CodeDeoptEvent(code, pc, fp_to_sp_delta));
+  void CodeDeoptEvent(CodeEventListener::DeoptKind kind, Code* code, Address pc,
+                      int fp_to_sp_delta) {
+    CODE_EVENT_DISPATCH(CodeDeoptEvent(kind, code, pc, fp_to_sp_delta));
   }
 #undef CODE_EVENT_DISPATCH
 
  private:
   std::unordered_set<CodeEventListener*> listeners_;
   base::Mutex mutex_;
 
   DISALLOW_COPY_AND_ASSIGN(CodeEventDispatcher);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_EVENTS_H_