[Interpreter] Add CallRuntime support to the interpreter.

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 "src/code-factory.h"
 #include "src/compiler.h"
 #include "src/compiler/interpreter-assembler.h"
 #include "src/factory.h"
@@ skipping 325 matching lines @@
 
 
 // Mod <src>
 //
 // Modulo register <src> by accumulator.
 void Interpreter::DoMod(compiler::InterpreterAssembler* assembler) {
   DoBinaryOp(Runtime::kModulus, assembler);
 }
 
 
-// Call <receiver> <arg_count>
+// Call <callable> <receiver> <arg_count>
 //
-// Call a JS function with receiver and |arg_count| arguments in subsequent
-// registers. The JSfunction or Callable to call is in the accumulator.
+// Call a JSfunction or Callable in |callable| with receiver and |arg_count|
+// arguments in subsequent registers.
 void Interpreter::DoCall(compiler::InterpreterAssembler* assembler) {
   Node* function_reg = __ BytecodeOperandReg(0);
   Node* function = __ LoadRegister(function_reg);
   Node* receiver_reg = __ BytecodeOperandReg(1);
   Node* first_arg = __ RegisterLocation(receiver_reg);
   Node* args_count = __ BytecodeOperandCount(2);
   Node* result = __ CallJS(function, first_arg, args_count);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
 
+// CallRuntime <function_id> <first_arg> <arg_count>
+//
+// Call the runtime function |function_id| with first argument in register
+// |first_arg| and |arg_count| arguments in subsequent registers.
+void Interpreter::DoCallRuntime(compiler::InterpreterAssembler* assembler) {
+  Node* function_id = __ BytecodeOperandIdx(0);

[oth, 2015/09/25 09:49:27]

A TODO for the wider operand(s) discussed for function_id.

[rmcilroy, 2015/09/28 16:20:47]

Implemented as a wide operand now.

+  Node* first_arg_reg = __ BytecodeOperandReg(1);
+  Node* first_arg = __ RegisterLocation(first_arg_reg);
+  Node* args_count = __ BytecodeOperandCount(2);
+  Node* result = __ CallRuntime(function_id, first_arg, args_count);
+  __ SetAccumulator(result);
+  __ Dispatch();
+}
+
+
 // TestEqual <src>
 //
 // Test if the value in the <src> register equals the accumulator.
 void Interpreter::DoTestEqual(compiler::InterpreterAssembler* assembler) {
   DoCompareOp(Token::Value::EQ, assembler);
 }
 
 
 // TestNotEqual <src>
 //
@@ skipping 163 matching lines @@
 //
 // Return the value in register 0.
 void Interpreter::DoReturn(compiler::InterpreterAssembler* assembler) {
   __ Return();
 }
 
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8