================ @@ -0,0 +1,9 @@ +// RUN: %clang_cc1 -std=c99 -fsyntax-only -pedantic %s 2>&1 | grep 'warning: this style of line directive is a GNU extension' ---------------- macurtis-amd wrote: Updated test to use FileCheck. https://github.com/llvm/llvm-project/pull/134621