[compiler] Profiler reconstructs inlined frames for deopts.

src/profiler/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_PROFILER_PROFILE_GENERATOR_H_
 #define V8_PROFILER_PROFILE_GENERATOR_H_
 
 #include <map>
 #include "include/v8-profiler.h"
 #include "src/allocation.h"
@@ skipping 29 matching lines @@
   // CodeEntry doesn't own name strings, just references them.
   inline CodeEntry(Logger::LogEventsAndTags tag, const char* name,
                    const char* name_prefix = CodeEntry::kEmptyNamePrefix,
                    const char* resource_name = CodeEntry::kEmptyResourceName,
                    int line_number = v8::CpuProfileNode::kNoLineNumberInfo,
                    int column_number = v8::CpuProfileNode::kNoColumnNumberInfo,
                    JITLineInfoTable* line_info = NULL,
                    Address instruction_start = NULL);
   ~CodeEntry();
 
+  // Container describing inlined frames at eager deopt points. Is eventually
+  // being translated into v8::CpuProfileDeoptFrame by the profiler.
+  struct DeoptInlinedFrame {
+    int position;
+    int script_id;
+  };
+
   const char* name_prefix() const { return name_prefix_; }
   bool has_name_prefix() const { return name_prefix_[0] != '\0'; }
   const char* name() const { return name_; }
   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_; }
   int script_id() const { return script_id_; }
   void set_script_id(int script_id) { script_id_ = script_id; }
   int position() const { return position_; }
   void set_position(int position) { position_ = position; }
   void set_bailout_reason(const char* bailout_reason) {
     bailout_reason_ = bailout_reason;
   }
   const char* bailout_reason() const { return bailout_reason_; }
 
   void set_deopt_info(const char* deopt_reason, SourcePosition position,
-                      int inlining_id) {
+                      int deopt_id) {
     DCHECK(deopt_position_.IsUnknown());
     deopt_reason_ = deopt_reason;
     deopt_position_ = position;
-    deopt_inlining_id_ = inlining_id;
+    deopt_id_ = deopt_id;
   }
   CpuProfileDeoptInfo GetDeoptInfo();
   const char* deopt_reason() const { return deopt_reason_; }
   SourcePosition deopt_position() const { return deopt_position_; }
   bool has_deopt_info() const { return !deopt_position_.IsUnknown(); }
   void clear_deopt_info() {
     deopt_reason_ = kNoDeoptReason;
     deopt_position_ = SourcePosition::Unknown();
   }
 
   void FillFunctionInfo(SharedFunctionInfo* shared);
 
-  void set_inlined_function_infos(
-      const std::vector<InlinedFunctionInfo>& infos) {
-    inlined_function_infos_ = infos;
-  }
-  const std::vector<InlinedFunctionInfo> inlined_function_infos() {
-    return inlined_function_infos_;
-  }
-
   void SetBuiltinId(Builtins::Name id);
   Builtins::Name builtin_id() const {
     return BuiltinIdField::decode(bit_field_);
   }
 
   uint32_t GetHash() const;
   bool IsSameFunctionAs(CodeEntry* entry) const;
 
   int GetSourceLine(int pc_offset) const;
 
   void AddInlineStack(int pc_offset, std::vector<CodeEntry*>& inline_stack);
   const std::vector<CodeEntry*>* GetInlineStack(int pc_offset) const;
 
+  void AddDeoptInlinedFrames(int deopt_id, std::vector<DeoptInlinedFrame>&);
+  bool HasDeoptInlinedFramesFor(int deopt_id) const;
+
   Address instruction_start() const { return instruction_start_; }
   Logger::LogEventsAndTags tag() const { return TagField::decode(bit_field_); }
 
   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> {};
 
   uint32_t bit_field_;
   const char* name_prefix_;
   const char* name_;
   const char* resource_name_;
   int line_number_;
   int column_number_;
   int script_id_;
   int position_;
   const char* bailout_reason_;
   const char* deopt_reason_;
   SourcePosition deopt_position_;
-  int deopt_inlining_id_;
+  int deopt_id_;
   JITLineInfoTable* line_info_;
   Address instruction_start_;
   // Should be an unordered_map, but it doesn't currently work on Win & MacOS.
   std::map<int, std::vector<CodeEntry*>> inline_locations_;
-
-  std::vector<InlinedFunctionInfo> inlined_function_infos_;
+  std::map<int, std::vector<DeoptInlinedFrame>> deopt_inlined_frames_;
 
   DISALLOW_COPY_AND_ASSIGN(CodeEntry);
 };
 
 
 class ProfileTree;
 
 class ProfileNode {
  public:
   inline ProfileNode(ProfileTree* tree, CodeEntry* entry);
@@ skipping 241 matching lines @@
   CodeEntry* unresolved_entry_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileGenerator);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PROFILER_PROFILE_GENERATOR_H_