diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
index 5f167f8de1cf..9355dbe77f94 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
@@ -225,6 +225,7 @@ SDValue VectorLegalizer::LegalizeOp(SDValue Op) {
           }
           return TranslateLegalizeResults(Op, Lowered);
         }
+        LLVM_FALLTHROUGH;
       case TargetLowering::Expand:
         Changed = true;
         return LegalizeOp(ExpandLoad(Op));
diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp
index 900c0318b179..c43a5e18ad23 100644
--- a/lib/CodeGen/TargetLoweringBase.cpp
+++ b/lib/CodeGen/TargetLoweringBase.cpp
@@ -1456,6 +1456,7 @@ void TargetLoweringBase::computeRegisterProperties(
       }
       if (IsLegalWiderType)
         break;
+      LLVM_FALLTHROUGH;
     }
     case TypeWidenVector: {
       // Try to widen the vector.
@@ -1473,6 +1474,7 @@ void TargetLoweringBase::computeRegisterProperties(
       }
       if (IsLegalWiderType)
         break;
+      LLVM_FALLTHROUGH;
     }
     case TypeSplitVector:
     case TypeScalarizeVector: {