mirror of
https://github.com/dart-lang/sdk
synced 2024-10-14 04:50:22 +00:00
a64b06ec83
Issue https://dart-review.googlesource.com/c/sdk/+/115701 Change-Id: Ib579f0bbc8d694aec74afd837217316a10baf910 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/115707 Commit-Queue: Martin Kustermann <kustermann@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com>
121 lines
3.6 KiB
C++
121 lines
3.6 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_ARM_H_
|
|
#define RUNTIME_VM_CPU_ARM_H_
|
|
|
|
#if !defined(RUNTIME_VM_CPU_H_)
|
|
#error Do not include cpu_arm.h directly; use cpu.h instead.
|
|
#endif
|
|
|
|
#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.
|
|
|
|
enum ARMVersion {
|
|
ARMv5TE,
|
|
ARMv6,
|
|
ARMv7,
|
|
ARMvUnknown,
|
|
};
|
|
|
|
class HostCPUFeatures : public AllStatic {
|
|
public:
|
|
static void Init();
|
|
static void Cleanup();
|
|
static const char* hardware() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return hardware_;
|
|
}
|
|
static bool integer_division_supported() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return integer_division_supported_;
|
|
}
|
|
static bool vfp_supported() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return vfp_supported_;
|
|
}
|
|
static bool neon_supported() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return neon_supported_;
|
|
}
|
|
static bool hardfp_supported() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return hardfp_supported_;
|
|
}
|
|
static ARMVersion arm_version() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return arm_version_;
|
|
}
|
|
static intptr_t store_pc_read_offset() {
|
|
DEBUG_ASSERT(initialized_);
|
|
return store_pc_read_offset_;
|
|
}
|
|
|
|
#if !defined(HOST_ARCH_ARM)
|
|
static void set_integer_division_supported(bool supported) {
|
|
DEBUG_ASSERT(initialized_);
|
|
integer_division_supported_ = supported;
|
|
}
|
|
static void set_vfp_supported(bool supported) {
|
|
DEBUG_ASSERT(initialized_);
|
|
vfp_supported_ = supported;
|
|
}
|
|
static void set_neon_supported(bool supported) {
|
|
DEBUG_ASSERT(initialized_);
|
|
neon_supported_ = supported;
|
|
}
|
|
static void set_arm_version(ARMVersion version) {
|
|
DEBUG_ASSERT(initialized_);
|
|
arm_version_ = version;
|
|
}
|
|
#endif // !defined(HOST_ARCH_ARM)
|
|
|
|
private:
|
|
static const char* hardware_;
|
|
static bool integer_division_supported_;
|
|
static bool vfp_supported_;
|
|
static bool neon_supported_;
|
|
static bool hardfp_supported_;
|
|
static ARMVersion arm_version_;
|
|
static intptr_t store_pc_read_offset_;
|
|
#if defined(DEBUG)
|
|
static bool initialized_;
|
|
#endif
|
|
};
|
|
|
|
class TargetCPUFeatures : public AllStatic {
|
|
public:
|
|
static void Init() { HostCPUFeatures::Init(); }
|
|
static void Cleanup() { HostCPUFeatures::Cleanup(); }
|
|
static bool double_truncate_round_supported() { return false; }
|
|
static bool integer_division_supported() {
|
|
return HostCPUFeatures::integer_division_supported();
|
|
}
|
|
static bool vfp_supported() { return HostCPUFeatures::vfp_supported(); }
|
|
static bool can_divide() {
|
|
return integer_division_supported() || vfp_supported();
|
|
}
|
|
static bool neon_supported() { return HostCPUFeatures::neon_supported(); }
|
|
static bool hardfp_supported() { return HostCPUFeatures::hardfp_supported(); }
|
|
static const char* hardware() { return HostCPUFeatures::hardware(); }
|
|
static ARMVersion arm_version() { return HostCPUFeatures::arm_version(); }
|
|
static intptr_t store_pc_read_offset() {
|
|
return HostCPUFeatures::store_pc_read_offset();
|
|
}
|
|
};
|
|
|
|
} // namespace dart
|
|
|
|
#endif // RUNTIME_VM_CPU_ARM_H_
|