Ping: [PATCH] testsuite: Add test for already-fixed issue with _Pragma expansion [PR90400]

[Lewis Hyatt <lhyatt@gmail.com>]

Hello-

May I please ping this one? It's adding a testcase prior to closing
the PR. Thanks!
https://gcc.gnu.org/pipermail/gcc-patches/2023-August/628488.html

-Lewis

On Fri, Aug 25, 2023 at 4:46 PM Lewis Hyatt <lhyatt@gmail.com> wrote:
>
> Hello-
>
> This is adding a testcase for a PR that was already incidentally fixed. OK
> to commit please? Thanks...
>
> -Lewis
>
> -- >8 --
>
> The PR was fixed by r12-5454. Since the fix was somewhat incidental,
> although related, add a testcase from PR90400 too before closing it out.
>
> gcc/testsuite/ChangeLog:
>
>         PR preprocessor/90400
>         * c-c++-common/cpp/pr90400.c: New test.
> ---
>  gcc/testsuite/c-c++-common/cpp/pr90400.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>  create mode 100644 gcc/testsuite/c-c++-common/cpp/pr90400.c
>
> diff --git a/gcc/testsuite/c-c++-common/cpp/pr90400.c b/gcc/testsuite/c-c++-common/cpp/pr90400.c
> new file mode 100644
> index 00000000000..4f2cab8d6ab
> --- /dev/null
> +++ b/gcc/testsuite/c-c++-common/cpp/pr90400.c
> @@ -0,0 +1,14 @@
> +/* { dg-do compile } */
> +/* { dg-additional-options "-save-temps" } */
> +/* PR preprocessor/90400 */
> +
> +#define OUTER(x) x
> +#define FOR(x) _Pragma ("GCC unroll 0") for (x)
> +void f ()
> +{
> +    /* If the pragma were to be seen prior to the expansion of FOR, as was
> +       the case before r12-5454, then the unroll pragma would complain
> +       because the immediately following statement would be ";" rather than
> +       a loop.  */
> +    OUTER (; FOR (int i = 0; i != 1; ++i);) /* { dg-bogus {statement expected before ';' token} } */
> +}