Hi Jeff,
on 2023/4/19 10:03, Jiufu Guo wrote:
> Hi,
>
> On P7, option -mno-allow-movmisalign is added during testing, which
> prevents slp happen on the case.
>
> Like Like PR65484 and PR87306, this patch use vect_hw_misalig to guard
Dup like... ~~ missing the last character n.
> the case on powerpc targets.
>
> Tested on ppc64{le,} and x86_64.
> Is this ok for trunk?
>
> BR,
> Jeff (Jiufu)
>
> gcc/testsuite/ChangeLog:
>
> PR testsuite/106879
> * gcc.dg/vect/bb-slp-layout-19.c: Modify to guard the check with
> vect_hw_misalig on POWERs.
... ~~~~~ Same here.
OK for trunk with these nits fixed, thanks!
BR,
Kewen
>
> ---
> gcc/testsuite/gcc.dg/vect/bb-slp-layout-19.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/testsuite/gcc.dg/vect/bb-slp-layout-19.c
> b/gcc/testsuite/gcc.dg/vect/bb-slp-layout-19.c
> index f075a83a25b..faf98e8d3c0 100644
> --- a/gcc/testsuite/gcc.dg/vect/bb-slp-layout-19.c
> +++ b/gcc/testsuite/gcc.dg/vect/bb-slp-layout-19.c
> @@ -31,4 +31,9 @@ void f()
> e[3] = b3;
> }
>
> -/* { dg-final { scan-tree-dump-times "add new stmt: \[^\\n\\r\]* =
> VEC_PERM_EXPR" 3 "slp1" { target { vect_int_mult && vect_perm } } } } */
> +/* On older powerpc hardware (POWER7 and earlier), the default flag
> + -mno-allow-movmisalign prevents vectorization. On POWER8 and later,
> + when vect_hw_misalign is true, vectorization occurs. For other
> + targets, ! vect_no_align is a sufficient test. */
> +
> +/* { dg-final { scan-tree-dump-times "add new stmt: \[^\\n\\r\]* =
> VEC_PERM_EXPR" 3 "slp1" { target { { vect_int_mult && vect_perm } && { { !
> powerpc*-*-* } || { vect_hw_misalign } } } } } } */
