Index: lib/Support/APFloat.cpp
===================================================================
--- lib/Support/APFloat.cpp
+++ lib/Support/APFloat.cpp
@@ -1430,7 +1430,7 @@
 
   /* Determine if the operation on the absolute values is effectively
      an addition or subtraction.  */
-  subtract ^= (sign ^ rhs.sign) ? true : false;
+  subtract ^= (sign ^ rhs.sign) != 0;
 
   /* Are we bigger exponent-wise than the RHS?  */
   bits = exponent - rhs.exponent;