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674be02d52
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172025 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
//===- llvm/Support/Atomic.h - Atomic Operations -----------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the llvm::sys atomic operations.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_ATOMIC_H
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#define LLVM_SUPPORT_ATOMIC_H
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#include "llvm/Support/DataTypes.h"
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namespace llvm {
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namespace sys {
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void MemoryFence();
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#ifdef _MSC_VER
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typedef long cas_flag;
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#else
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typedef uint32_t cas_flag;
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#endif
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cas_flag CompareAndSwap(volatile cas_flag* ptr,
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cas_flag new_value,
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cas_flag old_value);
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cas_flag AtomicIncrement(volatile cas_flag* ptr);
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cas_flag AtomicDecrement(volatile cas_flag* ptr);
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cas_flag AtomicAdd(volatile cas_flag* ptr, cas_flag val);
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cas_flag AtomicMul(volatile cas_flag* ptr, cas_flag val);
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cas_flag AtomicDiv(volatile cas_flag* ptr, cas_flag val);
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}
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}
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#endif
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