diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 56f93adf9fb..ccef33eb891 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -204,7 +204,10 @@ SDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned,
     SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot,
                                DAG.getSrcValue(NULL));
     // FP constant to bias correct the final result
-    SDOperand Bias = DAG.getConstantFP(isSigned ? 0x1.000008p52 : 0x1.000000p52,
+    uint64_t   SignedBias = 0x4330000080000000ULL;
+    uint64_t UnsignedBias = 0x4330000000000000ULL;
+    SDOperand Bias = DAG.getConstantFP(isSigned ? *(double *)&SignedBias
+                                                : *(double *)&UnsignedBias,
                                      MVT::f64);
     // subtract the bias
     SDOperand Sub = DAG.getNode(ISD::SUB, MVT::f64, Load, Bias);