Hi!

On 2020-11-13T23:22:30+0100, I wrote:
> On 2019-02-01T00:59:30+0100, I wrote:
>> I've just pushed the attached nine patches to openacc-gcc-8-branch:
>> OpenACC 'kernels' construct changes: splitting of the construct into
>> several regions.
>
> Now, slightly more polished, I've pushed to master branch a variant of
> most of these patches combined in commit
> e898ce7997733c29dcab9c3c62ca102c7f9fa6eb "Decompose OpenACC 'kernels'
> constructs into parts, a sequence of compute constructs", see attached.
>
>> There's more work to be done there, and we're aware of a number of TODO
>> items, but nevertheless: it's a good first step.
>
> That's still the case...  :-)

> --- /dev/null
> +++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/declare-vla-kernels-decompose-ice-1.c
> @@ -0,0 +1,8 @@
> +/* { dg-additional-options "-fopenacc-kernels=decompose" } */
> +/* Hopefully, this is the same issue as '../../../gcc/testsuite/c-c++-common/goacc/kernels-decompose-ice-1.c'.
> +   { dg-ice "TODO" }
> +   TODO { dg-prune-output "during GIMPLE pass: omplower" }
> +   TODO { dg-do link } */
> +
> +#undef KERNELS_DECOMPOSE_ICE_HACK
> +#include "declare-vla.c"

Arseny had later reduced that, and filed <https://gcc.gnu.org/PR104086>.
To document the status quo, pushed to master branch
commit 9781ae3a254a8c17ef4ffa70f21ed1728ff3c707
"Add 'c-c++-common/goacc/kernels-decompose-pr104086-1.c' [PR104086]",
see attached.


Grüße
 Thomas


> --- /dev/null
> +++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/declare-vla-kernels-decompose.c
> @@ -0,0 +1,6 @@
> +/* { dg-additional-options "-fopenacc-kernels=decompose" } */
> +
> +/* See also 'declare-vla-kernels-decompose-ice-1.c'.  */
> +
> +#define KERNELS_DECOMPOSE_ICE_HACK
> +#include "declare-vla.c"

> --- a/libgomp/testsuite/libgomp.oacc-c-c++-common/declare-vla.c
> +++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/declare-vla.c
> @@ -38,6 +38,12 @@ f_data (void)
>      for (i = 0; i < N; i++)
>        A[i] = -i;
>
> +    /* See 'declare-vla-kernels-decompose.c'.  */
> +#ifdef KERNELS_DECOMPOSE_ICE_HACK
> +    (volatile int *) &i;
> +    (volatile int *) &N;
> +#endif
> +
>  # pragma acc kernels
>      for (i = 0; i < N; i++)
>        A[i] = i;


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