freebsd-dev/include/llvm/System/Atomic.h

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2009-06-02 17:52:33 +00:00
//===- llvm/System/Atomic.h - Atomic Operations -----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the llvm::sys atomic operations.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SYSTEM_ATOMIC_H
#define LLVM_SYSTEM_ATOMIC_H
#include "llvm/Support/DataTypes.h"
namespace llvm {
namespace sys {
void MemoryFence();
uint32_t CompareAndSwap32(volatile uint32_t* ptr,
uint32_t new_value,
uint32_t old_value);
int32_t AtomicIncrement32(volatile int32_t* ptr);
int32_t AtomicDecrement32(volatile int32_t* ptr);
int32_t AtomicAdd32(volatile int32_t* ptr, int32_t val);
int64_t AtomicAdd64(volatile int64_t* ptr, int64_t val);
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}
}
#endif