mirror of
https://github.com/dart-lang/sdk
synced 2024-09-16 01:45:06 +00:00
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// 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 RUNTIME_VM_CPU_ARM64_H_
|
|
#define RUNTIME_VM_CPU_ARM64_H_
|
|
|
|
#include "vm/allocation.h"
|
|
#include "vm/simulator.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.
|
|
|
|
class HostCPUFeatures : public AllStatic {
|
|
public:
|
|
static void InitOnce();
|
|
static void Cleanup();
|
|
static const char* hardware() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return hardware_;
|
|
}
|
|
|
|
private:
|
|
static const char* hardware_;
|
|
#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; }
|
|
};
|
|
|
|
} // namespace dart
|
|
|
|
#endif // RUNTIME_VM_CPU_ARM64_H_
|