[turbofan] First step of Operator refactoring.

src/compiler/operator.cc

+// 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.
+
+#include "src/compiler/operator.h"
+
+#include "src/assembler.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+Operator::~Operator() {}
+
+
+SimpleOperator::SimpleOperator(Opcode opcode, Properties properties,
+                               int input_count, int output_count,
+                               const char* mnemonic)
+    : Operator(opcode, properties, mnemonic),
+      input_count_(input_count),
+      output_count_(output_count) {}
+
+
+SimpleOperator::~SimpleOperator() {}
+
+
+// static
+OStream& StaticParameterTraits<ExternalReference>::PrintTo(
+    OStream& os, ExternalReference reference) {
+  os << reference.address();
+  // TODO(bmeurer): Move to operator<<(os, ExternalReference)
+  const Runtime::Function* function =
+      Runtime::FunctionForEntry(reference.address());
+  if (function) {
+    os << " <" << function->name << ".entry>";
+  }
+  return os;
+}
+
+
+// static
+int StaticParameterTraits<ExternalReference>::HashCode(
+    ExternalReference reference) {
+  return reinterpret_cast<intptr_t>(reference.address()) & 0xFFFFFFFF;
+}
+
+
+// static
+bool StaticParameterTraits<ExternalReference>::Equals(ExternalReference lhs,
+                                                      ExternalReference rhs) {
+  return lhs == rhs;
+}
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8