Move of the type feedback vector to the closure.

src/full-codegen/full-codegen.cc

 // Copyright 2012 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.
 
 #include "src/full-codegen/full-codegen.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopeinfo.h"
@@ skipping 978 matching lines @@
       return;
     }
     current = current->Exit(&context_length);
   }
   EmitReturnSequence();
 }
 
 void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info,
                                        bool pretenure) {
   // Use the fast case closure allocation code that allocates in new
   // space for nested functions that don't need literals cloning. If

[Michael Starzinger, 2016/05/10 13:47:20]

nit: Comment is outdated.

[mvstanton, 2016/05/24 16:31:49]

Done.

   // we're running with the --always-opt or the --prepare-always-opt
   // flag, we need to use the runtime function so that the new function
   // we are creating here gets a chance to have its code optimized and
   // doesn't just get a copy of the existing unoptimized code.
-  if (!FLAG_always_opt &&
-      !FLAG_prepare_always_opt &&
-      !pretenure &&
-      scope()->is_function_scope() &&
-      info->num_literals() == 0) {
+  if (!FLAG_always_opt && !FLAG_prepare_always_opt && !pretenure &&
+      scope()->is_function_scope()) {
     FastNewClosureStub stub(isolate(), info->language_mode(), info->kind());
     __ Move(stub.GetCallInterfaceDescriptor().GetRegisterParameter(0), info);
     __ CallStub(&stub);
   } else {
     __ Push(info);
     __ CallRuntime(pretenure ? Runtime::kNewClosure_Tenured
                              : Runtime::kNewClosure);
   }
   context()->Plug(result_register());
 }
@@ skipping 920 matching lines @@
   return var->scope()->is_nonlinear() ||
          var->initializer_position() >= proxy->position();
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8