Visit the Optimized Code Map on first call rather than closure creation.

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/assert-scope.h"
@@ skipping 6676 matching lines @@
   static const int kEntriesStart = 1;
   static const int kContextOffset = 0;
   static const int kCachedCodeOffset = 1;
   static const int kLiteralsOffset = 2;
   static const int kOsrAstIdOffset = 3;
   static const int kEntryLength = 4;
   static const int kInitialLength = kEntriesStart + kEntryLength;
 
   static const int kNotFound = -1;
 
+  // Helpers for assembly code that does a backwards walk of the optimized code
+  // map.
+  static const int kOffsetToPreviousContext =
+      FixedArray::kHeaderSize + kPointerSize * (kContextOffset - kEntryLength);
+  static const int kOffsetToPreviousCachedCode =
+      FixedArray::kHeaderSize +
+      kPointerSize * (kCachedCodeOffset - kEntryLength);
+  static const int kOffsetToPreviousLiterals =
+      FixedArray::kHeaderSize + kPointerSize * (kLiteralsOffset - kEntryLength);
+  static const int kOffsetToPreviousOsrAstId =
+      FixedArray::kHeaderSize + kPointerSize * (kOsrAstIdOffset - kEntryLength);
+
   // [scope_info]: Scope info.
   DECL_ACCESSORS(scope_info, ScopeInfo)
 
   // [construct stub]: Code stub for constructing instances of this function.
   DECL_ACCESSORS(construct_stub, Code)
 
   // Returns if this function has been compiled to native code yet.
   inline bool is_compiled();
 
   // [length]: The function length - usually the number of declared parameters.
@@ skipping 4061 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_