On Thu, Apr 15, 2021 at 2:51 PM Stefan Schulze Frielinghaus via
Gcc-patches <gcc-patches@gcc.gnu.org> wrote:
>
> For z10 and newer inner loops are completely unrolled which leaves no
> inner loops to jam which renders this testcase to fail. Reverting
> max-completely-peel-times to the default value fixes this testcase.
>
> gcc/testsuite/ChangeLog:
>
> * gcc.dg/unroll-and-jam.c: Revert max-completely-peel-times to
> the default value on IBM Z.
>
> Ok for mainline?
OK.
> ---
> gcc/testsuite/gcc.dg/unroll-and-jam.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/gcc/testsuite/gcc.dg/unroll-and-jam.c
> b/gcc/testsuite/gcc.dg/unroll-and-jam.c
> index 7eb64217a05..b8f4f16dc74 100644
> --- a/gcc/testsuite/gcc.dg/unroll-and-jam.c
> +++ b/gcc/testsuite/gcc.dg/unroll-and-jam.c
> @@ -1,5 +1,6 @@
> /* { dg-do run } */
> /* { dg-options "-O3 -floop-unroll-and-jam -fno-tree-loop-im --param
> unroll-jam-min-percent=0 -fdump-tree-unrolljam-details" } */
> +/* { dg-additional-options "--param max-completely-peel-times=16" { target {
> s390*-*-* } } } */
> /* { dg-require-effective-target int32plus } */
>
> #include <stdio.h>
> --
> 2.23.0
>
