diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 2103856..229ea50 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -1333,6 +1333,7 @@
     Opts.AltiVec = 1;
     Opts.CXXOperatorNames = 1;
     Opts.LaxVectorConversions = 1;
+    Opts.DefaultFPContract = 1;
   }
 
   if (LangStd == LangStandard::lang_cuda)