[MachineMemOperand][AtomicSDNode] Remove getSuccessOrdering()

Differential Revision: https://reviews.llvm.org/D25786

llvm-svn: 284834

llvm/include/llvm/CodeGen/MachineMemOperand.h

@@ -202,17 +202,13 @@ public:
     return static_cast<SynchronizationScope>(AtomicInfo.SynchScope);
   }
 
-  /// Return the atomic ordering requirements for this memory operation.
+  /// Return the atomic ordering requirements for this memory operation. For
+  /// cmpxchg atomic operations, return the atomic ordering requirements when
+  /// store occurs.
   AtomicOrdering getOrdering() const {
     return static_cast<AtomicOrdering>(AtomicInfo.Ordering);
   }
 
-  /// For cmpxchg atomic operations, return the atomic ordering requirements
-  /// when store occurs.
-  AtomicOrdering getSuccessOrdering() const {
-    return getOrdering();
-  }
-
   /// For cmpxchg atomic operations, return the atomic ordering requirements
   /// when store does not occur.
   AtomicOrdering getFailureOrdering() const {

llvm/include/llvm/CodeGen/SelectionDAGNodes.h

@@ -1123,7 +1123,9 @@ public:
   /// Return the synchronization scope for this memory operation.
   SynchronizationScope getSynchScope() const { return MMO->getSynchScope(); }
 
-  /// Return the atomic ordering requirements for this memory operation.
+  /// Return the atomic ordering requirements for this memory operation. For
+  /// cmpxchg atomic operations, return the atomic ordering requirements when
+  /// store occurs.
   AtomicOrdering getOrdering() const { return MMO->getOrdering(); }
 
   /// Return the type of the in-memory value.
@@ -1204,13 +1206,6 @@ public:
            Op == ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS;
   }
 
-  /// For cmpxchg atomic operations, return the atomic ordering requirements
-  /// when store occurs.
-  AtomicOrdering getSuccessOrdering() const {
-    assert(isCompareAndSwap() && "Must be cmpxchg operation");
-    return MMO->getSuccessOrdering();
-  }
-
   /// For cmpxchg atomic operations, return the atomic ordering requirements
   /// when store does not occur.
   AtomicOrdering getFailureOrdering() const {