bolt/deps/llvm-18.1.8/clang/test/Sema/warn-unused-variables-werror.c

// RUN: %clang_cc1 -fsyntax-only -Wunused-variable -Werror -verify %s

void f(void) {
  int i;  // expected-error{{unused}}
  int j;  // expected-error{{unused}}
}