diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index 900c031..c43a5e18 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -1456,6 +1456,7 @@
       }
       if (IsLegalWiderType)
         break;
+      LLVM_FALLTHROUGH;
     }
     case TypeWidenVector: {
       // Try to widen the vector.
@@ -1473,6 +1474,7 @@
       }
       if (IsLegalWiderType)
         break;
+      LLVM_FALLTHROUGH;
     }
     case TypeSplitVector:
     case TypeScalarizeVector: {