1 files changed, 4 insertions, 2 deletions
diff --git a/clang/lib/Lex/PPExpressions.cpp b/clang/lib/Lex/PPExpressions.cpp
index 6603a17cbd4..058e2741d7a 100644
--- a/clang/lib/Lex/PPExpressions.cpp
+++ b/clang/lib/Lex/PPExpressions.cpp
@@ -650,8 +650,10 @@ static bool EvaluateDirectiveSubExpr(PPValue &LHS, unsigned MinPrec,
     case tok::greatergreater: {
       // Determine whether overflow is about to happen.
       unsigned ShAmt = static_cast<unsigned>(RHS.Val.getLimitedValue());
-      if (ShAmt >= LHS.getBitWidth())
-        Overflow = true, ShAmt = LHS.getBitWidth()-1;
+      if (ShAmt >= LHS.getBitWidth()) {
+        Overflow = true;
+        ShAmt = LHS.getBitWidth()-1;
+      }
       Res = LHS.Val >> ShAmt;
       break;
     }