diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 802102c99a2..4409380bd7a 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -1343,6 +1343,7 @@ bool InstCombiner::SimplifyDemandedBits(Value *V, APInt DemandedMask,
       }
       }
     }
+    ComputeMaskedBits(V, DemandedMask, RHSKnownZero, RHSKnownOne, Depth);
     break;
   }