diff --git a/lib/Target/Target.td b/lib/Target/Target.td
index fce45a5..938e4cd 100644
--- a/lib/Target/Target.td
+++ b/lib/Target/Target.td
@@ -210,6 +210,11 @@
   string CondString = cond;
 }
 
+/// NoHonorSignDependentRounding - This predicate is true if support for
+/// sign-dependent-rounding is not enabled.
+def NoHonorSignDependentRounding
+ : Predicate<"!HonorSignDependentRoundingFPMath()">;
+
 class Requires<list<Predicate> preds> {
   list<Predicate> Predicates = preds;
 }
diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index b79b87b..6c00a3f 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -27,6 +27,7 @@
   bool NoExcessFPPrecision;
   bool UnsafeFPMath;
   bool FiniteOnlyFPMathOption;
+  bool HonorSignDependentRoundingFPMathOption;
   bool UseSoftFloat;
   bool NoZerosInBSS;
   bool ExceptionHandling;