Eliminate Turbofan shims with CodeFactory

src/compiler/js-generic-lowering.h

 // Copyright 2014 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_COMPILER_JS_GENERIC_LOWERING_H_
 #define V8_COMPILER_JS_GENERIC_LOWERING_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
+#include "src/code-factory.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/graph-reducer.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/opcodes.h"
 #include "src/unique.h"
 
 namespace v8 {
 namespace internal {
 
 // Forward declarations.
 class HydrogenCodeStub;

[Michael Starzinger, 2014/09/11 12:26:54]

We can now drop this forward declare. Yay!

 
 namespace compiler {
 
 // Forward declarations.
 class CommonOperatorBuilder;
 class MachineOperatorBuilder;
 class Linkage;
 
 // Lowers JS-level operators to runtime and IC calls in the "generic" case.
 class JSGenericLowering : public Reducer {
@@ skipping 16 matching lines @@
   Node* CodeConstant(Handle<Code> code);
   Node* FunctionConstant(Handle<JSFunction> function);
   Node* ExternalConstant(ExternalReference ref);
 
   // Helpers to patch existing nodes in the graph.
   void PatchOperator(Node* node, const Operator* new_op);
   void PatchInsertInput(Node* node, int index, Node* input);
 
   // Helpers to replace existing nodes with a generic call.
   void ReplaceWithCompareIC(Node* node, Token::Value token, bool pure);
-  void ReplaceWithStubCall(Node* node, HydrogenCodeStub* stub,
+  void ReplaceWithStubCall(Node* node, Callable callable,
                            CallDescriptor::Flags flags);
   void ReplaceWithBuiltinCall(Node* node, Builtins::JavaScript id, int args);
   void ReplaceWithRuntimeCall(Node* node, Runtime::FunctionId f, int args = -1);
 
   Zone* zone() const { return graph()->zone(); }
   Isolate* isolate() const { return zone()->isolate(); }
   JSGraph* jsgraph() const { return jsgraph_; }
   Graph* graph() const { return jsgraph()->graph(); }
   Linkage* linkage() const { return linkage_; }
   CompilationInfo* info() const { return info_; }
   CommonOperatorBuilder* common() const { return jsgraph()->common(); }
   MachineOperatorBuilder* machine() const { return machine_; }
 
  private:
   CompilationInfo* info_;
   JSGraph* jsgraph_;
   Linkage* linkage_;
   MachineOperatorBuilder* machine_;
   SetOncePointer<Node> centrystub_constant_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_GENERIC_LOWERING_H_