[Interpreter] Introduce IncStub and DecStub.

src/interpreter/interpreter.cc

 // Copyright 2015 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/interpreter/interpreter.h"
 
 #include <fstream>
 
 #include "src/ast/prettyprinter.h"
 #include "src/code-factory.h"
@@ skipping 796 matching lines @@
 // ShiftRightLogical <src>
 //
 // Right Shifts register <src> by the count specified in the accumulator.
 // Result is zero-filled. The accumulator and register <src> are converted to
 // uint32 before the operation 5 lsb bits from the accumulator are used as
 // count i.e. <src> << (accumulator & 0x1F).
 void Interpreter::DoShiftRightLogical(InterpreterAssembler* assembler) {
   DoBinaryOp<ShiftRightLogicalStub>(assembler);
 }
 
-void Interpreter::DoCountOp(Runtime::FunctionId function_id,
+void Interpreter::DoCountOp(Callable callable,
                             InterpreterAssembler* assembler) {
+  Node* target = __ HeapConstant(callable.code());
   Node* value = __ GetAccumulator();
-  Node* one = __ NumberConstant(1);
   Node* context = __ GetContext();
-  Node* result = __ CallRuntime(function_id, context, value, one);
+  Node* result = __ CallStub(callable.descriptor(), target, context, value);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
 
 // Inc
 //
 // Increments value in the accumulator by one.
 void Interpreter::DoInc(InterpreterAssembler* assembler) {
-  DoCountOp(Runtime::kAdd, assembler);
+  DoCountOp(CodeFactory::Inc(isolate_), assembler);
 }
 
 
 // Dec
 //
 // Decrements value in the accumulator by one.
 void Interpreter::DoDec(InterpreterAssembler* assembler) {
-  DoCountOp(Runtime::kSubtract, assembler);
+  DoCountOp(CodeFactory::Dec(isolate_), assembler);
 }
 
 
 // LogicalNot
 //
 // Perform logical-not on the accumulator, first casting the
 // accumulator to a boolean value if required.
 void Interpreter::DoLogicalNot(InterpreterAssembler* assembler) {
   Callable callable = CodeFactory::ToBoolean(isolate_);
   Node* target = __ HeapConstant(callable.code());
@@ skipping 883 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8