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From: "vries at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug testsuite/104423] [libgomp, testsuite] Add means to do
 accelerator-only testing in libgomp
Date: Tue, 08 Feb 2022 14:47:03 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104423

--- Comment #3 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Thomas Schwinge from comment #2)
> For OpenMP test cases, we'd either have to manually mark them up (error
> prone and generally ugly), or scan the source file(s) (error prone and
> generally ugly), or use some kind of marker that gets set during compilat=
ion
> if any offloading code has been generated.

I was thinking along the lines of already existing markers in the exec:
...
$ nm for-3.exe | grep offload
                 U GOMP_offload_register_ver
                 U GOMP_offload_unregister_ver
0000000000a59718 D __offload_funcs_end
0000000000a58a58 d .offload_func_table
0000000000a58a58 D __offload_func_table
0000000000a5ca38 D __offload_vars_end
0000000000a59718 d .offload_var_table
0000000000a59718 D __offload_var_table
...

Say, if the exec doesn't have a __offload_func_table, it can be skipped.

This would allow to do one test run, where you run all the tests, and gener=
ate
the offloading tests list, and then several more runs (using the same sourc=
es,
so the list is still up to date) where you just do the accelerator tests.=