diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 10ffdc4..6155ee1 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -49,7 +49,7 @@
 /// As such, this method can be used to do an exact bit-for-bit comparison of
 /// two floating point values.
 bool ConstantFPSDNode::isExactlyValue(double V) const {
-  return Value == APFloat(V);
+  return Value.bitwiseIsEqual(APFloat(V));
 }
 
 //===----------------------------------------------------------------------===//