diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 23244f4fa29e..a1570e7d94db 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -3507,7 +3507,6 @@ void X86TargetInfo::setSSELevel(llvm::StringMap<bool> &Features,
       Features["avx512pf"] = Features["avx512dq"] = Features["avx512bw"] =
       Features["avx512vl"] = Features["avx512vbmi"] =
       Features["avx512ifma"] = false;
-    LLVM_FALLTHROUGH;
   }
 }
 
@@ -3574,7 +3573,6 @@ void X86TargetInfo::setXOPLevel(llvm::StringMap<bool> &Features, XOPEnum Level,
     LLVM_FALLTHROUGH;
   case XOP:
     Features["xop"] = false;
-    LLVM_FALLTHROUGH;
   }
 }