================
@@ -3233,6 +3233,17 @@ Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl,
unsigned BuiltinID,
if (BuiltinCountZeroBitsGeneric(*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())) {
----------------
AaronBallman wrote:
This might be a reasonable restriction, but consider other cases like:
`constexpr` variable of string type, `constexpr` function call that returns a
`const char *`, `_Generic` that results in a string constant, etc. Would those
be reasonable to support?
https://github.com/llvm/llvm-project/pull/87568
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