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llvm-mirror/include/llvm/Support/Atomic.h
Charles Davis e7f14dfdb8 Now to chant the magical incantation that will exorcise the System library
from LLVM forever:

grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g'

llvm-svn: 120314
2010-11-29 19:44:50 +00:00

40 lines
1.2 KiB
C++

//===- llvm/Support/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();
#ifdef _MSC_VER
typedef long cas_flag;
#else
typedef uint32_t cas_flag;
#endif
cas_flag CompareAndSwap(volatile cas_flag* ptr,
cas_flag new_value,
cas_flag old_value);
cas_flag AtomicIncrement(volatile cas_flag* ptr);
cas_flag AtomicDecrement(volatile cas_flag* ptr);
cas_flag AtomicAdd(volatile cas_flag* ptr, cas_flag val);
cas_flag AtomicMul(volatile cas_flag* ptr, cas_flag val);
cas_flag AtomicDiv(volatile cas_flag* ptr, cas_flag val);
}
}
#endif