dart-sdk/runtime/vm/cpuid.h
zra@google.com fd366da1cf Updates refactoring of CPU feature detection
with fix that uses cpuid for Intel/Linux.

R=asiva@google.com

Review URL: https://codereview.chromium.org//136303012

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32980 260f80e4-7a28-3924-810f-c04153c831b5
2014-02-24 19:28:30 +00:00

49 lines
1.2 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 VM_CPUID_H_
#define VM_CPUID_H_
#include "vm/globals.h"
#if !defined(TARGET_OS_MACOS)
#include "vm/allocation.h"
#include "vm/cpuinfo.h"
namespace dart {
class CpuId : public AllStatic {
public:
#if defined(HOST_ARCH_IA32) || defined(HOST_ARCH_X64)
static void InitOnce();
static void Cleanup();
// Caller must free the result of field.
static const char* field(CpuInfoIndices idx);
#else
static void InitOnce() {}
static void Cleanup() {}
static const char* field(CpuInfoIndices idx) { return NULL; }
#endif
static bool sse2() { return sse2_; }
static bool sse41() { return sse41_; }
// Caller must free the result of id_string and brand_string.
static const char* id_string();
static const char* brand_string();
private:
static bool sse2_;
static bool sse41_;
static const char* id_string_;
static const char* brand_string_;
static void GetCpuId(int32_t level, uint32_t info[4]);
};
} // namespace dart
#endif // !defined(TARGET_OS_MACOS)
#endif // VM_CPUID_H_