diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h
index f1c93896565..ecb347e00bc 100644
--- a/include/llvm/CodeGen/SelectionDAG.h
+++ b/include/llvm/CodeGen/SelectionDAG.h
@@ -974,7 +974,7 @@ public:
   /// ISD::ADD with a ConstantSDNode on the right-hand side, or if it is an
   /// ISD::OR with a ConstantSDNode that is guaranteed to have the same
   /// semantics as an ADD.  This handles the equivalence:
-  ///     X|Cst == X+Cst iff X&~Cst = 0.
+  ///     X|Cst == X+Cst iff X&Cst = 0.
   bool isBaseWithConstantOffset(SDValue Op) const;
   
   /// isKnownNeverNan - Test whether the given SDValue is known to never be NaN.
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 501264f23d9..e8dbe4efb30 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2292,7 +2292,7 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, unsigned Depth) const{
 /// ISD::ADD with a ConstantSDNode on the right-hand side, or if it is an
 /// ISD::OR with a ConstantSDNode that is guaranteed to have the same
 /// semantics as an ADD.  This handles the equivalence:
-///     X|Cst == X+Cst iff X&~Cst = 0.
+///     X|Cst == X+Cst iff X&Cst = 0.
 bool SelectionDAG::isBaseWithConstantOffset(SDValue Op) const {
   if ((Op.getOpcode() != ISD::ADD && Op.getOpcode() != ISD::OR) ||
       !isa<ConstantSDNode>(Op.getOperand(1)))