https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81690
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |burnus at gcc dot gnu.org
--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Regarding the code in comment 1 (which additionally lacks a "void" in the
decl):
The omp_is_initial_device() is only resolved at run time - hence, I think the
linker still wants to see "usleep".
I was wondering whether one shouldn't clone the files and use:
/* { dg-do run { target { { ! openacc_nvidia_accel_selected } && { !
openacc_amdgcn_accel_selected } } } } */
And the clone without "!" but with "||".
Other remarks:
* libgomp.c/target-32.c fails at run time with:
libgomp: GOMP_OFFLOAD_async_run unimplemented
as soon as one got passed the usleep issue (e.g. by replacing it by a no-op)
* libgomp.c/thread-limit-2.c compiles - but it doesn't do anything on the GPU
due to:
#pragma omp target if (0)
Regarding the do_sleep replacement:
* One needs to use additionally __attribute__((always_inline)) otherwise, it
fails with:
function 'do_sleep' has been referenced in offloaded code but hasn't been
marked to be included in the offloaded code
* If one tries it with:
#pragma omp declare target
that fails to compile with
libgomp.c/thread-limit-2.c compiles - but it doesn't do anything on the GPU due
to:
#pragma omp target if (0)
many errors of the kind:
.omp_data_kinds.24 / .omp_data_sizes.26 has been referenced in offloaded code
but hasn't been marked to be included in the offloaded code
