| // Copyright (c) 2012, 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. |
| |
| #include "vm/globals.h" |
| #if defined(TARGET_ARCH_X64) |
| |
| #include "vm/cpu.h" |
| #include "vm/cpu_x64.h" |
| |
| #include "vm/cpuinfo.h" |
| |
| namespace dart { |
| |
| DEFINE_FLAG(bool, use_sse41, true, "Use SSE 4.1 if available"); |
| |
| void CPU::FlushICache(uword start, uword size) { |
| // Nothing to be done here. |
| } |
| |
| const char* CPU::Id() { |
| return |
| #if defined(USING_SIMULATOR) |
| "sim" |
| #endif // !defined(USING_SIMULATOR) |
| "x64"; |
| } |
| |
| const char* HostCPUFeatures::hardware_ = nullptr; |
| bool HostCPUFeatures::sse2_supported_ = true; |
| bool HostCPUFeatures::sse4_1_supported_ = false; |
| bool HostCPUFeatures::popcnt_supported_ = false; |
| bool HostCPUFeatures::abm_supported_ = false; |
| |
| #if defined(DEBUG) |
| bool HostCPUFeatures::initialized_ = false; |
| #endif |
| |
| #if !defined(USING_SIMULATOR) |
| void HostCPUFeatures::Init() { |
| CpuInfo::Init(); |
| hardware_ = CpuInfo::GetCpuModel(); |
| sse4_1_supported_ = CpuInfo::FieldContains(kCpuInfoFeatures, "sse4_1") || |
| CpuInfo::FieldContains(kCpuInfoFeatures, "sse4.1"); |
| popcnt_supported_ = CpuInfo::FieldContains(kCpuInfoFeatures, "popcnt"); |
| abm_supported_ = CpuInfo::FieldContains(kCpuInfoFeatures, "abm"); |
| #if defined(DEBUG) |
| initialized_ = true; |
| #endif |
| } |
| |
| void HostCPUFeatures::Cleanup() { |
| DEBUG_ASSERT(initialized_); |
| #if defined(DEBUG) |
| initialized_ = false; |
| #endif |
| ASSERT(hardware_ != nullptr); |
| free(const_cast<char*>(hardware_)); |
| hardware_ = nullptr; |
| CpuInfo::Cleanup(); |
| } |
| |
| #else // !defined(USING_SIMULATOR) |
| |
| void HostCPUFeatures::Init() { |
| CpuInfo::Init(); |
| hardware_ = CpuInfo::GetCpuModel(); |
| sse4_1_supported_ = false; |
| popcnt_supported_ = false; |
| abm_supported_ = false; |
| #if defined(DEBUG) |
| initialized_ = true; |
| #endif |
| } |
| |
| void HostCPUFeatures::Cleanup() { |
| DEBUG_ASSERT(initialized_); |
| #if defined(DEBUG) |
| initialized_ = false; |
| #endif |
| ASSERT(hardware_ != nullptr); |
| free(const_cast<char*>(hardware_)); |
| hardware_ = nullptr; |
| CpuInfo::Cleanup(); |
| } |
| #endif // !defined(USING_SIMULATOR) |
| |
| } // namespace dart |
| |
| #endif // defined TARGET_ARCH_X64 |