[turbofan] Add length operand to LoadElement and StoreElement.

src/compiler/generic-node.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_GENERIC_NODE_H_
 #define V8_COMPILER_GENERIC_NODE_H_
 
 #include "src/v8.h"
 
 #include "src/zone-containers.h"
@@ skipping 23 matching lines @@
 
   inline NodeId id() const { return id_; }
 
   int InputCount() const { return input_count_; }
   S* InputAt(int index) const {
     return static_cast<S*>(GetInputRecordPtr(index)->to);
   }
   inline void ReplaceInput(int index, GenericNode* new_input);
   inline void AppendInput(Zone* zone, GenericNode* new_input);
   inline void InsertInput(Zone* zone, int index, GenericNode* new_input);
+  inline void RemoveInput(int index);

[Michael Starzinger, 2014/09/24 08:59:12]

There is a copy of this method in js-generic-lowering.cc, now that you added
this one, please use it in JSGenericLowering::ReplaceWithCompareIC as well. Just
look for TODO(jarin) there.

Also, let's add a unit test for this to test-node.cc as well (just one unit test
would be good enough for me).

[Benedikt Meurer, 2014/09/24 09:24:48]

Done.

 
   int UseCount() { return use_count_; }
   S* UseAt(int index) {
     DCHECK(index < use_count_);
     Use* current = first_use_;
     while (index-- != 0) {
       current = current->next;
     }
     return static_cast<S*>(current->from);
   }
   inline void ReplaceUses(GenericNode* replace_to);
   template <class UnaryPredicate>
   inline void ReplaceUsesIf(UnaryPredicate pred, GenericNode* replace_to);
   inline void RemoveAllInputs();
 
-  void TrimInputCount(int input_count);
+  inline void TrimInputCount(int input_count);
 
   class Inputs {
    public:
     class iterator;
     iterator begin();
     iterator end();
 
     explicit Inputs(GenericNode* node) : node_(node) {}
 
    private:
@@ skipping 192 matching lines @@
   }
 
   typename GenericNode<B, S>::Use* current_;
   int index_;
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_GENERIC_NODE_H_