Simplify feedback vector creation and store in SharedFunctionInfo.

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3113 matching lines @@
   ASSERT(target_shared->code()->gc_metadata() == NULL);
   ASSERT(source_shared->code()->gc_metadata() == NULL);
   target_shared->set_dont_flush(true);
   source_shared->set_dont_flush(true);
 
   // Set the code, scope info, formal parameter count, and the length
   // of the target shared function info.
   target_shared->ReplaceCode(source_shared->code());
   target_shared->set_scope_info(source_shared->scope_info());
   target_shared->set_length(source_shared->length());
+  target_shared->set_feedback_vector(source_shared->feedback_vector());
   target_shared->set_formal_parameter_count(
       source_shared->formal_parameter_count());
   target_shared->set_script(source_shared->script());
   target_shared->set_start_position_and_type(
       source_shared->start_position_and_type());
   target_shared->set_end_position(source_shared->end_position());
   bool was_native = target_shared->native();
   target_shared->set_compiler_hints(source_shared->compiler_hints());
   target_shared->set_native(was_native);
 
@@ skipping 5466 matching lines @@
   Deoptimizer::DeoptimizeFunction(*function);
 
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_ClearFunctionTypeFeedback) {
   HandleScope scope(isolate);
   ASSERT(args.length() == 1);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
+  function->shared()->ClearTypeFeedbackInfo();
   Code* unoptimized = function->shared()->code();
   if (unoptimized->kind() == Code::FUNCTION) {
     unoptimized->ClearInlineCaches();
-    unoptimized->ClearTypeFeedbackInfo(isolate->heap());
   }
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_RunningInSimulator) {
   SealHandleScope shs(isolate);
   ASSERT(args.length() == 0);
 #if defined(USE_SIMULATOR)
   return isolate->heap()->true_value();
@@ skipping 6510 matching lines @@
   }
   return NULL;
 }
 
 
 const Runtime::Function* Runtime::FunctionForId(Runtime::FunctionId id) {
   return &(kIntrinsicFunctions[static_cast<int>(id)]);
 }
 
 } }  // namespace v8::internal