1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Support/FoldingSet.cpp b/llvm/lib/Support/FoldingSet.cpp
index 52baf865d83..a27d3174a4f 100644
--- a/llvm/lib/Support/FoldingSet.cpp
+++ b/llvm/lib/Support/FoldingSet.cpp
@@ -127,8 +127,8 @@ void FoldingSetNodeID::AddString(StringRef String) {
   // Pos will have overshot size by 4 - #bytes left over.
   // No need to take endianness into account here - this is always executed.
   switch (Pos - Size) {
-  case 1: V = (V << 8) | (unsigned char)String[Size - 3]; // Fall thru.
-  case 2: V = (V << 8) | (unsigned char)String[Size - 2]; // Fall thru.
+  case 1: V = (V << 8) | (unsigned char)String[Size - 3]; LLVM_FALLTHROUGH;
+  case 2: V = (V << 8) | (unsigned char)String[Size - 2]; LLVM_FALLTHROUGH;
   case 3: V = (V << 8) | (unsigned char)String[Size - 1]; break;
   default: return; // Nothing left.
   }