Remove some dead code.

src/register-allocator-inl.h

-// Copyright 2009 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#ifndef V8_REGISTER_ALLOCATOR_INL_H_
-#define V8_REGISTER_ALLOCATOR_INL_H_
-
-#include "codegen.h"
-#include "register-allocator.h"
-
-#if V8_TARGET_ARCH_IA32
-#include "ia32/register-allocator-ia32-inl.h"
-#elif V8_TARGET_ARCH_X64
-#include "x64/register-allocator-x64-inl.h"
-#elif V8_TARGET_ARCH_ARM
-#include "arm/register-allocator-arm-inl.h"
-#elif V8_TARGET_ARCH_MIPS
-#include "mips/register-allocator-mips-inl.h"
-#else
-#error Unsupported target architecture.
-#endif
-
-
-namespace v8 {
-namespace internal {
-
-Result::Result(const Result& other) {
-  other.CopyTo(this);
-}
-
-
-Result& Result::operator=(const Result& other) {
-  if (this != &other) {
-    Unuse();
-    other.CopyTo(this);
-  }
-  return *this;
-}
-
-
-Result::~Result() {
-  if (is_register()) {
-    CodeGeneratorScope::Current(Isolate::Current())->allocator()->Unuse(reg());
-  }
-}
-
-
-void Result::Unuse() {
-  if (is_register()) {
-    CodeGeneratorScope::Current(Isolate::Current())->allocator()->Unuse(reg());
-  }
-  invalidate();
-}
-
-
-void Result::CopyTo(Result* destination) const {
-  destination->value_ = value_;
-  if (is_register()) {
-    CodeGeneratorScope::Current(Isolate::Current())->allocator()->Use(reg());
-  }
-}
-
-
-bool RegisterAllocator::is_used(Register reg) {
-  return registers_.is_used(ToNumber(reg));
-}
-
-
-int RegisterAllocator::count(Register reg) {
-  return registers_.count(ToNumber(reg));
-}
-
-
-void RegisterAllocator::Use(Register reg) {
-  registers_.Use(ToNumber(reg));
-}
-
-
-void RegisterAllocator::Unuse(Register reg) {
-  registers_.Unuse(ToNumber(reg));
-}
-
-
-TypeInfo Result::type_info() const {
-  ASSERT(is_valid());
-  return TypeInfo::FromInt(TypeInfoField::decode(value_));
-}
-
-
-void Result::set_type_info(TypeInfo info) {
-  ASSERT(is_valid());
-  value_ &= ~TypeInfoField::mask();
-  value_ |= TypeInfoField::encode(info.ToInt());
-}
-
-
-bool Result::is_number() const {
-  return type_info().IsNumber();
-}
-
-
-bool Result::is_smi() const {
-  return type_info().IsSmi();
-}
-
-
-bool Result::is_integer32() const {
-  return type_info().IsInteger32();
-}
-
-
-bool Result::is_double() const {
-  return type_info().IsDouble();
-}
-
-} }  // namespace v8::internal
-
-#endif  // V8_REGISTER_ALLOCATOR_INL_H_