Hi!

On 2022-02-24T11:32:53+0100, Tom de Vries via Gcc-patches <gcc-patches@gcc.gnu.org> wrote:
> --- /dev/null
> +++ b/libgomp/testsuite/libgomp.c/declare-variant-3-sm30.c
> @@ -0,0 +1,7 @@
> +/* { dg-do run { target { offload_target_nvptx } } } */

This means, the test case is active if nvptx offloading compilation is
enabled.  But, consider the case that GCN offloading compilation also
is enabled:

| +/* { dg-additional-options -foffload=nvptx-none } */
> +/* { dg-additional-options "-foffload=-misa=sm_30" } */

This means, the test cases is restricted to nvptx offloading compilation,
but not GCN.

> +/* { dg-additional-options "-foffload=-fdump-tree-optimized" } */

This will thus produce a dump file for nvptx, only.  No dump file
produced for GCN.

> +[...]
> +/* { dg-final { scan-offload-tree-dump "= f30 \\(\\);" "optimized" } } */

..., and this will try to scan dump files for both GCN and nvptx.  The
former doesn't exist, resulting in UNRESOLVEDs for GCN.  Etc.  I've
pushed to master branch commit 186e22c5de8eb49603bb1e74ac5d0eba6cc40480
"In 'libgomp.c/declare-variant-{3,4}-*.c', restrict 'scan-offload-tree-dump's to 'only_for_offload_target [...]'",
see attached.


Grüße
 Thomas


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