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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef RUNTIME_VM_CPU_ARM64_H_ | 5 #ifndef RUNTIME_VM_CPU_ARM64_H_ |
| 6 #define RUNTIME_VM_CPU_ARM64_H_ | 6 #define RUNTIME_VM_CPU_ARM64_H_ |
| 7 | 7 |
| 8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
| 9 #include "vm/simulator.h" | 9 #include "vm/simulator.h" |
| 10 | 10 |
| 11 namespace dart { | 11 namespace dart { |
| 12 | 12 |
| 13 // TargetCPUFeatures gives CPU features for the architecture that we are | 13 // TargetCPUFeatures gives CPU features for the architecture that we are |
| 14 // generating code for. HostCPUFeatures gives the CPU features for the | 14 // generating code for. HostCPUFeatures gives the CPU features for the |
| 15 // architecture that we are actually running on. When the architectures | 15 // architecture that we are actually running on. When the architectures |
| 16 // are the same, TargetCPUFeatures will query HostCPUFeatures. When they are | 16 // are the same, TargetCPUFeatures will query HostCPUFeatures. When they are |
| 17 // different (i.e. we are running in a simulator), HostCPUFeatures will | 17 // different (i.e. we are running in a simulator), HostCPUFeatures will |
| 18 // additionally mock the options needed for the target architecture so that | 18 // additionally mock the options needed for the target architecture so that |
| 19 // they may be altered for testing. | 19 // they may be altered for testing. |
| 20 | 20 |
| 21 class HostCPUFeatures: public AllStatic { | 21 class HostCPUFeatures : public AllStatic { |
| 22 public: | 22 public: |
| 23 static void InitOnce(); | 23 static void InitOnce(); |
| 24 static void Cleanup(); | 24 static void Cleanup(); |
| 25 static const char* hardware() { | 25 static const char* hardware() { |
| 26 DEBUG_ASSERT(initialized_); | 26 DEBUG_ASSERT(initialized_); |
| 27 return hardware_; | 27 return hardware_; |
| 28 } | 28 } |
| 29 | 29 |
| 30 private: | 30 private: |
| 31 static const char* hardware_; | 31 static const char* hardware_; |
| 32 #if defined(DEBUG) | 32 #if defined(DEBUG) |
| 33 static bool initialized_; | 33 static bool initialized_; |
| 34 #endif | 34 #endif |
| 35 }; | 35 }; |
| 36 | 36 |
| 37 class TargetCPUFeatures : public AllStatic { | 37 class TargetCPUFeatures : public AllStatic { |
| 38 public: | 38 public: |
| 39 static void InitOnce() { | 39 static void InitOnce() { HostCPUFeatures::InitOnce(); } |
| 40 HostCPUFeatures::InitOnce(); | 40 static void Cleanup() { HostCPUFeatures::Cleanup(); } |
| 41 } | 41 static const char* hardware() { return HostCPUFeatures::hardware(); } |
| 42 static void Cleanup() { | 42 static bool double_truncate_round_supported() { return false; } |
| 43 HostCPUFeatures::Cleanup(); | |
| 44 } | |
| 45 static const char* hardware() { | |
| 46 return HostCPUFeatures::hardware(); | |
| 47 } | |
| 48 static bool double_truncate_round_supported() { | |
| 49 return false; | |
| 50 } | |
| 51 }; | 43 }; |
| 52 | 44 |
| 53 } // namespace dart | 45 } // namespace dart |
| 54 | 46 |
| 55 #endif // RUNTIME_VM_CPU_ARM64_H_ | 47 #endif // RUNTIME_VM_CPU_ARM64_H_ |
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