1 files changed, 2 insertions, 6 deletions
diff --git a/clang-tools-extra/clang-tidy/utils/FormatStringConverter.cpp b/clang-tools-extra/clang-tidy/utils/FormatStringConverter.cpp
index 7f4ccca..e1c1bee 100644
--- a/clang-tools-extra/clang-tidy/utils/FormatStringConverter.cpp
+++ b/clang-tools-extra/clang-tidy/utils/FormatStringConverter.cpp
@@ -207,13 +207,9 @@ FormatStringConverter::FormatStringConverter(
       ArgsOffset(FormatArgOffset + 1), LangOpts(LO) {
   assert(ArgsOffset <= NumArgs);
   FormatExpr = llvm::dyn_cast<StringLiteral>(
-      Args[FormatArgOffset]->IgnoreImplicitAsWritten());
+      Args[FormatArgOffset]->IgnoreUnlessSpelledInSource());
 
-  if (!FormatExpr || !FormatExpr->isOrdinary()) {
-    // Function must have a narrow string literal as its first argument.
-    conversionNotPossible("first argument is not a narrow string literal");
-    return;
-  }
+  assert(FormatExpr && FormatExpr->isOrdinary());
 
   if (const std::optional<StringRef> MaybeMacroName =
           formatStringContainsUnreplaceableMacro(Call, FormatExpr, SM, PP);