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Add two helper functions: isAtLeastAcquire, isAtLeastRelease

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These methods are available on AtomicOrdering values, and will be used
in a later separate patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215779 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Robin Morisset 2014-08-15 22:25:12 +00:00
parent c51ec911e5
commit f11a5fc12d
1 changed files with 16 additions and 0 deletions
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16
include/llvm/IR/Instructions.h
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@ -50,6 +50,22 @@ enum SynchronizationScope {
CrossThread = 1
};
/// Returns true if the ordering is at least as strong as acquire
/// (i.e. acquire, acq_rel or seq_cst)
inline bool isAtLeastAcquire(AtomicOrdering Ord) {
return (Ord == Acquire ||
Ord == AcquireRelease ||
Ord == SequentiallyConsistent);
}
/// Returns true if the ordering is at least as strong as release
/// (i.e. release, acq_rel or seq_cst)
inline bool isAtLeastRelease(AtomicOrdering Ord) {
return (Ord == Release ||
Ord == AcquireRelease ||
Ord == SequentiallyConsistent);
}
//===----------------------------------------------------------------------===//
// AllocaInst Class
//===----------------------------------------------------------------------===//