1 files changed, 11 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 3dcd18b3afc8..277836961a29 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -3235,6 +3235,17 @@ Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID,
     if (SemaBuiltinCountZeroBitsGeneric(*this, TheCall))
       return ExprError();
     break;
+
+  case Builtin::BI__builtin_allow_runtime_check: {
+    Expr *Arg = TheCall->getArg(0);
+    // Check if the argument is a string literal.
+    if (!isa<StringLiteral>(Arg->IgnoreParenImpCasts())) {
+      Diag(TheCall->getBeginLoc(), diag::err_expr_not_string_literal)
+          << Arg->getSourceRange();
+      return ExprError();
+    }
+    break;
+  }
   }
 
   if (getLangOpts().HLSL && CheckHLSLBuiltinFunctionCall(BuiltinID, TheCall))