CPUProfiler: Push deopt reason further to ProfileNode.

src/profile-generator.h

 // Copyright 2011 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_PROFILE_GENERATOR_H_
 #define V8_PROFILE_GENERATOR_H_
 
 #include <map>
 #include "include/v8-profiler.h"
 #include "src/allocation.h"
@@ skipping 72 matching lines @@
   const char* resource_name() const { return resource_name_; }
   int line_number() const { return line_number_; }
   int column_number() const { return column_number_; }
   const JITLineInfoTable* line_info() const { return line_info_; }
   void set_shared_id(int shared_id) { shared_id_ = shared_id; }
   int script_id() const { return script_id_; }
   void set_script_id(int script_id) { script_id_ = script_id; }
   void set_bailout_reason(const char* bailout_reason) {
     bailout_reason_ = bailout_reason;
   }
-  void set_deopt_reason(const char* deopt_reason) {
+  const char* bailout_reason() const { return bailout_reason_; }
+
+  void set_deopt_info(const char* deopt_reason, int location) {
+    DCHECK(deopt_reason_ == kNoDeoptReason);
+    DCHECK(!deopt_location_);
     deopt_reason_ = deopt_reason;
+    deopt_location_ = location;
   }
-  void set_deopt_location(int location) { deopt_location_ = location; }
-  const char* bailout_reason() const { return bailout_reason_; }
+  const char* deopt_reason() const { return deopt_reason_; }
+  int deopt_location() const { return deopt_location_; }
+  bool has_deopt_info() const { return deopt_reason_ != kNoDeoptReason; }
+  void clear_deopt_info() {
+    deopt_reason_ = kNoDeoptReason;
+    deopt_location_ = 0;
+  }
 
   static inline bool is_js_function_tag(Logger::LogEventsAndTags tag);
 
   List<OffsetRange>* no_frame_ranges() const { return no_frame_ranges_; }
   void set_no_frame_ranges(List<OffsetRange>* ranges) {
     no_frame_ranges_ = ranges;
   }
 
   void SetBuiltinId(Builtins::Name id);
   Builtins::Name builtin_id() const {
     return BuiltinIdField::decode(bit_field_);
   }
 
   uint32_t GetCallUid() const;
   bool IsSameAs(CodeEntry* entry) const;
 
   int GetSourceLine(int pc_offset) const;
 
   Address instruction_start() const { return instruction_start_; }
 
   static const char* const kEmptyNamePrefix;
   static const char* const kEmptyResourceName;
   static const char* const kEmptyBailoutReason;
+  static const char* const kNoDeoptReason;
 
  private:
   class TagField : public BitField<Logger::LogEventsAndTags, 0, 8> {};
   class BuiltinIdField : public BitField<Builtins::Name, 8, 8> {};
   Logger::LogEventsAndTags tag() const { return TagField::decode(bit_field_); }
 
   uint32_t bit_field_;
   const char* name_prefix_;
   const char* name_;
   const char* resource_name_;
   int line_number_;
   int column_number_;
   int shared_id_;
   int script_id_;
   List<OffsetRange>* no_frame_ranges_;
   const char* bailout_reason_;
   const char* deopt_reason_;
   int deopt_location_;
   JITLineInfoTable* line_info_;
   Address instruction_start_;
 
   DISALLOW_COPY_AND_ASSIGN(CodeEntry);
 };
 
 
 class ProfileTree;
 
 class ProfileNode {
+ private:
+  struct DeoptInfo {
+    DeoptInfo(const char* deopt_reason, int deopt_location)
+        : deopt_reason(deopt_reason), deopt_location(deopt_location) {}
+    DeoptInfo(const DeoptInfo& info)
+        : deopt_reason(info.deopt_reason),
+          deopt_location(info.deopt_location) {}
+    const char* deopt_reason;
+    int deopt_location;
+  };
+
  public:
   inline ProfileNode(ProfileTree* tree, CodeEntry* entry);
 
   ProfileNode* FindChild(CodeEntry* entry);
   ProfileNode* FindOrAddChild(CodeEntry* entry);
   void IncrementSelfTicks() { ++self_ticks_; }
   void IncreaseSelfTicks(unsigned amount) { self_ticks_ += amount; }
   void IncrementLineTicks(int src_line);
 
   CodeEntry* entry() const { return entry_; }
   unsigned self_ticks() const { return self_ticks_; }
   const List<ProfileNode*>* children() const { return &children_list_; }
   unsigned id() const { return id_; }
   unsigned int GetHitLineCount() const { return line_ticks_.occupancy(); }
   bool GetLineTicks(v8::CpuProfileNode::LineTick* entries,
                     unsigned int length) const;
+  void CollectDeoptInfo(CodeEntry* entry);
+  const List<DeoptInfo>& deopt_infos() const { return deopt_infos_; }
 
   void Print(int indent);
 
  private:
   static bool CodeEntriesMatch(void* entry1, void* entry2) {
     return reinterpret_cast<CodeEntry*>(entry1)->IsSameAs(
         reinterpret_cast<CodeEntry*>(entry2));
   }
 
   static uint32_t CodeEntryHash(CodeEntry* entry) {
     return entry->GetCallUid();
   }
 
   static bool LineTickMatch(void* a, void* b) { return a == b; }
 
   ProfileTree* tree_;
   CodeEntry* entry_;
   unsigned self_ticks_;
   // Mapping from CodeEntry* to ProfileNode*
   HashMap children_;
   List<ProfileNode*> children_list_;
   unsigned id_;
   HashMap line_ticks_;
 
+  List<DeoptInfo> deopt_infos_;
   DISALLOW_COPY_AND_ASSIGN(ProfileNode);
 };
 
 
 class ProfileTree {
  public:
   ProfileTree();
   ~ProfileTree();
 
   ProfileNode* AddPathFromEnd(
@@ skipping 178 matching lines @@
   CodeEntry* gc_entry_;
   CodeEntry* unresolved_entry_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileGenerator);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_PROFILE_GENERATOR_H_