https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97860
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #3)
> I was going to commit the following but I'll leave it to you.
>
> diff --git a/gcc/c/c-decl.c b/gcc/c/c-decl.c
> index d348e39c27a..95cf9e4cb00 100644
> --- a/gcc/c/c-decl.c
> +++ b/gcc/c/c-decl.c
> @@ -5775,6 +5775,10 @@ get_parm_array_spec (const struct c_parm *parm, tree
> attrs)
> type = TREE_TYPE (type))
> {
> tree nelts = array_type_nelts (type);
> + if (error_operand_p (nelts))
> + /* Avoid erroneous expressions. */
> + return attrs;
> +
> if (TREE_CODE (nelts) != INTEGER_CST)
> {
> /* Each variable VLA bound is represented by the dollar
For errors why not, but typedef int T[0]; really is not an error actually.
