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+// 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_