| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef VM_CPU_MIPS_H_ |
| #define VM_CPU_MIPS_H_ |
| |
| #include "vm/allocation.h" |
| |
| namespace dart { |
| |
| // TargetCPUFeatures gives CPU features for the architecture that we are |
| // generating code for. HostCPUFeatures gives the CPU features for the |
| // architecture that we are actually running on. When the architectures |
| // are the same, TargetCPUFeatures will query HostCPUFeatures. When they are |
| // different (i.e. we are running in a simulator), HostCPUFeatures will |
| // additionally mock the options needed for the target architecture so that |
| // they may be altered for testing. |
| |
| enum MIPSVersion { |
| MIPS32, |
| MIPS32r2, |
| MIPSvUnknown, |
| }; |
| |
| class HostCPUFeatures: public AllStatic { |
| public: |
| static void InitOnce(); |
| static void Cleanup(); |
| static const char* hardware() { |
| DEBUG_ASSERT(initialized_); |
| return hardware_; |
| } |
| static MIPSVersion mips_version() { |
| DEBUG_ASSERT(initialized_); |
| return mips_version_; |
| } |
| |
| private: |
| static const char* hardware_; |
| static MIPSVersion mips_version_; |
| #if defined(DEBUG) |
| static bool initialized_; |
| #endif |
| }; |
| |
| class TargetCPUFeatures : public AllStatic { |
| public: |
| static void InitOnce() { |
| HostCPUFeatures::InitOnce(); |
| } |
| static void Cleanup() { |
| HostCPUFeatures::Cleanup(); |
| } |
| static const char* hardware() { |
| return HostCPUFeatures::hardware(); |
| } |
| static bool double_truncate_round_supported() { |
| return false; |
| } |
| static MIPSVersion mips_version() { |
| return HostCPUFeatures::mips_version(); |
| } |
| }; |
| |
| } // namespace dart |
| |
| #endif // VM_CPU_MIPS_H_ |