| // 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_ |