reimplement memcpy/memmove/memset lowering to use MachinePointerInfo

instead of srcvalue/offset pairs.  This corrects SV info for mem 
operations whose size is > 32-bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114401 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMISelLowering.cpp

@@ -928,7 +928,7 @@ CreateCopyOfByValArgument(SDValue Src, SDValue Dst, SDValue Chain,
   SDValue SizeNode = DAG.getConstant(Flags.getByValSize(), MVT::i32);
   return DAG.getMemcpy(Chain, dl, Dst, Src, SizeNode, Flags.getByValAlign(),
                        /*isVolatile=*/false, /*AlwaysInline=*/false,
-                       NULL, 0, NULL, 0);
+                       MachinePointerInfo(0), MachinePointerInfo(0));
 }
 
 /// LowerMemOpCallTo - Store the argument to the stack.