On Tue, Nov 17, 2020 at 12:24 PM Richard Sandiford via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> We don't need an epilogue loop if the main loop can operate on
> partial vectors, so this patch disables an associated test.
> The alternative would be to force partial-vectors-usage=1
> on the command line.
>
> Tested on aarch64-linux-gnu (with and without SVE), arm-linux-gnueabihf
> and x86_64-linux-gnu. OK to install?
OK
> Richard
>
>
> gcc/testsuite/
> * gcc.dg/vect/vect-epilogues.c: XFAIL test for epilogue loop
> vectorization if vect_partial_vectors_usage_2.
> ---
> gcc/testsuite/gcc.dg/vect/vect-epilogues.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/testsuite/gcc.dg/vect/vect-epilogues.c
> b/gcc/testsuite/gcc.dg/vect/vect-epilogues.c
> index a146bb6518a..ab7e8a1a759 100644
> --- a/gcc/testsuite/gcc.dg/vect/vect-epilogues.c
> +++ b/gcc/testsuite/gcc.dg/vect/vect-epilogues.c
> @@ -16,4 +16,4 @@ void pixel_avg( unsigned char *dst, int i_dst_stride,
> }
> }
>
> -/* { dg-final { scan-tree-dump "LOOP EPILOGUE VECTORIZED" "vect" { target
> vect_multiple_sizes xfail { arm32 && be } } } } */
> +/* { dg-final { scan-tree-dump "LOOP EPILOGUE VECTORIZED" "vect" { target
> vect_multiple_sizes xfail { { arm32 && be } || vect_partial_vectors_usage_2 }
> } } } */
