v8/src/register-allocator-inl.h
fschneider@chromium.org 0737ec8dcb Rename NumberInfo to TypeInfo.
Since we add more type (StringType, PrimitiveType) the name
NumberInfo does not make sense anymore.

Review URL: http://codereview.chromium.org/1207006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-03-25 12:44:15 +00:00

142 lines
3.6 KiB
C++

// 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()->allocator()->Unuse(reg());
}
}
void Result::Unuse() {
if (is_register()) {
CodeGeneratorScope::Current()->allocator()->Unuse(reg());
}
invalidate();
}
void Result::CopyTo(Result* destination) const {
destination->value_ = value_;
if (is_register()) {
CodeGeneratorScope::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_