On Fri, Apr 16, 2021 at 2:03 PM Stefan Schulze Frielinghaus via
Gcc-patches <gcc-patches@gcc.gnu.org> wrote:
>
> For z10 and newer inner loops are completely unrolled which means store
> motion is not applied. Reverting max-completely-peeled-insns to the
> default value fixes these testcases.
>
> Ok for mainline?
OK
> gcc/testsuite/ChangeLog:
>
> * gcc.dg/tree-ssa/pr83403-1.c: Revert
> max-completely-peeled-insns to the default value on IBM Z.
> * gcc.dg/tree-ssa/pr83403-2.c: Likewise.
> ---
> gcc/testsuite/gcc.dg/tree-ssa/pr83403-1.c | 1 +
> gcc/testsuite/gcc.dg/tree-ssa/pr83403-2.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr83403-1.c
> b/gcc/testsuite/gcc.dg/tree-ssa/pr83403-1.c
> index 748375b03af..bfc703d1aa6 100644
> --- a/gcc/testsuite/gcc.dg/tree-ssa/pr83403-1.c
> +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr83403-1.c
> @@ -1,5 +1,6 @@
> /* { dg-do compile } */
> /* { dg-options "-O3 -funroll-loops -fdump-tree-lim2-details" } */
> +/* { dg-additional-options "--param max-completely-peeled-insns=200" {
> target { s390*-*-* } } } */
>
> #define TYPE unsigned int
>
> diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr83403-2.c
> b/gcc/testsuite/gcc.dg/tree-ssa/pr83403-2.c
> index ca2e6bbd61c..9130d9bd583 100644
> --- a/gcc/testsuite/gcc.dg/tree-ssa/pr83403-2.c
> +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr83403-2.c
> @@ -1,5 +1,6 @@
> /* { dg-do compile } */
> /* { dg-options "-O3 -funroll-loops -fdump-tree-lim2-details" } */
> +/* { dg-additional-options "--param max-completely-peeled-insns=200" {
> target { s390*-*-* } } } */
>
> #define TYPE int
>
> --
> 2.23.0
>
