diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index f0fc574..9ebf681 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -3062,6 +3062,9 @@
   if (!SignedZeros)
     CmdArgs.push_back("-fno-signed-zeros");
 
+  if (ReciprocalMath)
+    CmdArgs.push_back("-freciprocal-math");
+
   // Validate and pass through -fp-contract option. 
   if (Arg *A = Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption,
                                options::OPT_fno_fast_math,