On Fri, Jul 11, 2025 at 8:27 PM Siddhesh Poyarekar <siddh...@gotplt.org> wrote:
>
> The test ends up writing a byte beyond bounds of the buffer, which gets
> trapped on some targets when the test is run with
> -fstack-protector-strong.
>
> testsuite/ChangeLog:
>
> * gcc.dg/vect/pr116125.c (mem_overlap): Reduce iteration count
> to 8.
>
> Signed-off-by: Siddhesh Poyarekar <siddh...@gotplt.org>
> ---
> OK for trunk and backport to gcc-15?
Can you instead make the buffers larger? We might otherwise no longer
testing what we did.
>
> gcc/testsuite/gcc.dg/vect/pr116125.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/testsuite/gcc.dg/vect/pr116125.c
> b/gcc/testsuite/gcc.dg/vect/pr116125.c
> index eab9efdc061..2f45ac3edc1 100644
> --- a/gcc/testsuite/gcc.dg/vect/pr116125.c
> +++ b/gcc/testsuite/gcc.dg/vect/pr116125.c
> @@ -8,7 +8,7 @@ struct st
> void __attribute__((noipa))
> mem_overlap (struct st *a, struct st *b)
> {
> - for (int i = 0; i < 9; i++)
> + for (int i = 0; i < 8; i++)
> a[i].num = b[i].num + 1;
> }
>
> --
> 2.50.0
>
