remove special case hacks for readport/readio from the binary operator
codepath

llvm-svn: 22019
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index bfaca1d..c3889dd 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1215,12 +1215,7 @@
     N = new SDNode(Opcode, N1, N2);
   }
 
-
-  if (Opcode != ISD::READPORT && Opcode != ISD::READIO)
-    N->setValueTypes(VT);
-  else
-    N->setValueTypes(VT, MVT::Other);
-
+  N->setValueTypes(VT);
   AllNodes.push_back(N);
   return SDOperand(N, 0);
 }