diff --git a/llvm/include/llvm/Constants.h b/llvm/include/llvm/Constants.h
index 926f131ef5eb..0706f61d12e0 100644
--- a/llvm/include/llvm/Constants.h
+++ b/llvm/include/llvm/Constants.h
@@ -262,11 +262,12 @@ public:
   bool isExactlyValue(const APFloat& V) const;
 
   bool isExactlyValue(double V) const {
+    bool ignored;
     // convert is not supported on this type
     if (&Val.getSemantics() == &APFloat::PPCDoubleDouble)
       return false;
     APFloat FV(V);
-    FV.convert(Val.getSemantics(), APFloat::rmNearestTiesToEven);
+    FV.convert(Val.getSemantics(), APFloat::rmNearestTiesToEven, &ignored);
     return isExactlyValue(FV);
   }
   /// Methods for support type inquiry through isa, cast, and dyn_cast: