[llvm-commits] atomics memoperands patch

[Mon P Wang]

Hi,

Like loads/stores, atomics touches memory and should have an  
associated MemOperand with the operation.  The following patch creates  
an abstract class MemSDNode that all nodes  which have an associated  
MemOperand need to inherit to.  It also creates a new property  
SDNPMemOperand that indicates that a node touches memory and has an  
associated MemOperand.If you have any comments, please let me know.

Thanks,
   -- Mon Ping

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