[turbofan] delete graph and schedule before register allocation.

src/compiler/js-operator.h

 // Copyright 2013 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_OPERATOR_H_
 #define V8_COMPILER_JS_OPERATOR_H_
 
 #include "src/runtime/runtime.h"
 #include "src/unique.h"
 
@@ skipping 177 matching lines @@
 size_t hash_value(StoreNamedParameters const&);
 
 std::ostream& operator<<(std::ostream&, StoreNamedParameters const&);
 
 const StoreNamedParameters& StoreNamedParametersOf(const Operator* op);
 
 
 // Interface for building JavaScript-level operators, e.g. directly from the
 // AST. Most operators have no parameters, thus can be globally shared for all
 // graphs.
-class JSOperatorBuilder FINAL {
+class JSOperatorBuilder FINAL : public ZoneObject {
  public:
   explicit JSOperatorBuilder(Zone* zone);
 
   const Operator* Equal();
   const Operator* NotEqual();
   const Operator* StrictEqual();
   const Operator* StrictNotEqual();
   const Operator* LessThan();
   const Operator* GreaterThan();
   const Operator* LessThanOrEqual();
@@ skipping 50 matching lines @@
   const Operator* CreateWithContext();
   const Operator* CreateBlockContext();
   const Operator* CreateModuleContext();
   const Operator* CreateGlobalContext();
 
  private:
   Zone* zone() const { return zone_; }
 
   const JSOperatorBuilderImpl& impl_;
   Zone* const zone_;
+
+  DISALLOW_COPY_AND_ASSIGN(JSOperatorBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_OPERATOR_H_