mirror of
https://github.com/dart-lang/sdk
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1f953c3fe1
TEST=ci Change-Id: Ia0d0f181b8d54c3ec0e1cc8f2076bea7854379ab Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311142 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#if defined(TARGET_ARCH_X64)
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#include "vm/cpu.h"
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#include "vm/cpu_x64.h"
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#include "vm/cpuinfo.h"
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namespace dart {
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DEFINE_FLAG(bool, use_sse41, true, "Use SSE 4.1 if available");
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void CPU::FlushICache(uword start, uword size) {
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// Nothing to be done here.
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}
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const char* CPU::Id() {
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return
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#if defined(USING_SIMULATOR)
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"sim"
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#endif // !defined(USING_SIMULATOR)
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"x64";
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}
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const char* HostCPUFeatures::hardware_ = nullptr;
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bool HostCPUFeatures::sse2_supported_ = true;
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bool HostCPUFeatures::sse4_1_supported_ = false;
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bool HostCPUFeatures::popcnt_supported_ = false;
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bool HostCPUFeatures::abm_supported_ = false;
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#if defined(DEBUG)
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bool HostCPUFeatures::initialized_ = false;
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#endif
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#if !defined(USING_SIMULATOR)
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void HostCPUFeatures::Init() {
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CpuInfo::Init();
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hardware_ = CpuInfo::GetCpuModel();
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sse4_1_supported_ = CpuInfo::FieldContains(kCpuInfoFeatures, "sse4_1") ||
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CpuInfo::FieldContains(kCpuInfoFeatures, "sse4.1");
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popcnt_supported_ = CpuInfo::FieldContains(kCpuInfoFeatures, "popcnt");
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abm_supported_ = CpuInfo::FieldContains(kCpuInfoFeatures, "abm");
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#if defined(DEBUG)
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initialized_ = true;
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#endif
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}
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void HostCPUFeatures::Cleanup() {
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DEBUG_ASSERT(initialized_);
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#if defined(DEBUG)
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initialized_ = false;
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#endif
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ASSERT(hardware_ != nullptr);
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free(const_cast<char*>(hardware_));
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hardware_ = nullptr;
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CpuInfo::Cleanup();
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}
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#else // !defined(USING_SIMULATOR)
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void HostCPUFeatures::Init() {
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CpuInfo::Init();
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hardware_ = CpuInfo::GetCpuModel();
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sse4_1_supported_ = false;
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popcnt_supported_ = false;
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abm_supported_ = false;
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#if defined(DEBUG)
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initialized_ = true;
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#endif
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}
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void HostCPUFeatures::Cleanup() {
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DEBUG_ASSERT(initialized_);
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#if defined(DEBUG)
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initialized_ = false;
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#endif
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ASSERT(hardware_ != nullptr);
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free(const_cast<char*>(hardware_));
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hardware_ = nullptr;
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CpuInfo::Cleanup();
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}
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#endif // !defined(USING_SIMULATOR)
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} // namespace dart
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#endif // defined TARGET_ARCH_X64
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