On Tue, 16 Apr 2024, Tamar Christina wrote:
> Hi all,
>
> The testcase seems to fail vectorization on -m32 since the access pattern is
> determined as too complex. This skips the vectorization check on ilp32
> systems
> as I couldn't find a better proxy for being able to do strided 64-bit loads
> and
> I suspect it would fail on all 32-bit targets.
You could try having Val aligned to 64bits in the structure (likely
32bit targets have it not aligned).
> Regtested on x86_64-pc-linux-gnu with -m32 and no issues.
>
> Ok for master?
>
> Thanks,
> Tamar
>
> gcc/testsuite/ChangeLog:
>
> PR tree-optimization/114403
> * gcc.dg/vect/vect-early-break_124-pr114403.c: Skip in ilp32.
>
> ---
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-early-break_124-pr114403.c
> b/gcc/testsuite/gcc.dg/vect/vect-early-break_124-pr114403.c
> index
> 1751296ab813fe85eaab1f58dc674bac10f6eb7a..db8e00556f116ca81c5a6558ec6ecd3b222ec93d
> 100644
> --- a/gcc/testsuite/gcc.dg/vect/vect-early-break_124-pr114403.c
> +++ b/gcc/testsuite/gcc.dg/vect/vect-early-break_124-pr114403.c
> @@ -2,11 +2,11 @@
> /* { dg-require-effective-target vect_early_break_hw } */
> /* { dg-require-effective-target vect_long_long } */
>
> -/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
> +/* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" { target { ! ilp32 }
> } } } */
>
> #include "tree-vect.h"
>
> -typedef unsigned long PV;
> +typedef unsigned long long PV;
> typedef struct _buff_t {
> int foo;
> PV Val;
>
>
>
>
>
--
Richard Biener <rguent...@suse.de>
SUSE Software Solutions Germany GmbH,
Frankenstrasse 146, 90461 Nuernberg, Germany;
GF: Ivo Totev, Andrew McDonald, Werner Knoblich; (HRB 36809, AG Nuernberg)
