[libc-commits] [clang] [libc] [llvm] [compiler-rt] [clang-tools-extra] [libcxx] [flang] [C23] Complete support for WG14 N2508 (PR #71398)

[Mariya Podchishchaeva via libc-commits]

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@@ -299,6 +299,12 @@ def note_missing_selector_name : Note<
 def note_force_empty_selector_name : Note<
   "or insert whitespace before ':' to use %0 as parameter name "
   "and have an empty entry in the selector">;
+def ext_c_label_followed_by_declaration : ExtWarn<
+  "label followed by a declaration is a C23 extension">,
+  InGroup<C23>;
+def warn_c23_compat_label_followed_by_declaration : Warning<
+  "label followed by a declaration is incompatible with C standards before "
+  "C23">, InGroup<CPre23Compat>, DefaultIgnore;
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Fznamznon wrote:

I can't find tests that would check that these messages are emitted. Are they coming?

https://github.com/llvm/llvm-project/pull/71398