Re: [PATCH] Changed vector size

[Richard Biener <richard.guenther@gmail.com>]

On Mon, Mar 27, 2023 at 12:37 PM <chenyixuan@iscas.ac.cn> wrote:
>
> From: Yixuan Chen <chenyixuan@iscas.ac.cn>
>
> Observed a vint type "ABS_EXPR" followed by extra 3 int type "ABS_EXPR". If want to test absolute value optimization for vector, maybe don't need 4 times.

A better solution would be to scan a dump before the veclower pass?

> gcc/testsuite/ChangeLog:
>
> 2023-03-27  Yixuan Chen  <chenyixuan@iscas.ac.cn>
>
>         * g++.dg/pr94920.C: Declare the vector size as long as int.
>
> ---
>  gcc/testsuite/g++.dg/pr94920.C | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/testsuite/g++.dg/pr94920.C b/gcc/testsuite/g++.dg/pr94920.C
> index 126b00478d2..498bef93b3a 100644
> --- a/gcc/testsuite/g++.dg/pr94920.C
> +++ b/gcc/testsuite/g++.dg/pr94920.C
> @@ -2,7 +2,7 @@
>  /* { dg-do compile } */
>  /* { dg-options "-O2 -Wno-psabi -fdump-tree-optimized" } */
>
> -typedef int __attribute__((vector_size(4*sizeof(int)))) vint;
> +typedef int __attribute__((vector_size(sizeof(int)))) vint;
>
>  /* Same form as PR.  */
>  __attribute__((noipa)) unsigned int foo(int x) {
> --
> 2.40.0
>