7976ca2cbc
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
142 lines
3.7 KiB
C++
142 lines
3.7 KiB
C++
// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_REGISTER_ALLOCATOR_INL_H_
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#define V8_REGISTER_ALLOCATOR_INL_H_
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#include "codegen.h"
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#include "register-allocator.h"
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#if V8_TARGET_ARCH_IA32
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#include "ia32/register-allocator-ia32-inl.h"
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#elif V8_TARGET_ARCH_X64
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#include "x64/register-allocator-x64-inl.h"
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#elif V8_TARGET_ARCH_ARM
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#include "arm/register-allocator-arm-inl.h"
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#elif V8_TARGET_ARCH_MIPS
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#include "mips/register-allocator-mips-inl.h"
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#else
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#error Unsupported target architecture.
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#endif
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namespace v8 {
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namespace internal {
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Result::Result(const Result& other) {
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other.CopyTo(this);
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}
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Result& Result::operator=(const Result& other) {
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if (this != &other) {
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Unuse();
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other.CopyTo(this);
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}
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return *this;
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}
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Result::~Result() {
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if (is_register()) {
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CodeGeneratorScope::Current(Isolate::Current())->allocator()->Unuse(reg());
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}
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}
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void Result::Unuse() {
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if (is_register()) {
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CodeGeneratorScope::Current(Isolate::Current())->allocator()->Unuse(reg());
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}
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invalidate();
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}
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void Result::CopyTo(Result* destination) const {
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destination->value_ = value_;
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if (is_register()) {
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CodeGeneratorScope::Current(Isolate::Current())->allocator()->Use(reg());
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}
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}
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bool RegisterAllocator::is_used(Register reg) {
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return registers_.is_used(ToNumber(reg));
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}
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int RegisterAllocator::count(Register reg) {
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return registers_.count(ToNumber(reg));
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}
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void RegisterAllocator::Use(Register reg) {
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registers_.Use(ToNumber(reg));
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}
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void RegisterAllocator::Unuse(Register reg) {
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registers_.Unuse(ToNumber(reg));
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}
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TypeInfo Result::type_info() const {
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ASSERT(is_valid());
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return TypeInfo::FromInt(TypeInfoField::decode(value_));
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}
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void Result::set_type_info(TypeInfo info) {
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ASSERT(is_valid());
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value_ &= ~TypeInfoField::mask();
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value_ |= TypeInfoField::encode(info.ToInt());
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}
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bool Result::is_number() const {
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return type_info().IsNumber();
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}
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bool Result::is_smi() const {
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return type_info().IsSmi();
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}
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bool Result::is_integer32() const {
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return type_info().IsInteger32();
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}
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bool Result::is_double() const {
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return type_info().IsDouble();
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}
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} } // namespace v8::internal
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#endif // V8_REGISTER_ALLOCATOR_INL_H_
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