llvm-project/offload/test/api/omp_host_call.c
Nick Sarnie 26b777444b
[offload][lit] XFAIL all failing tests on the Level Zero plugin (#174804)
We finally got our buildbot added (to staging, at least) so we want to
start running L0 tests in CI.
We need `check-offload` to pass though, so XFAIL everything failing.
There's a couple `UNSUPPORTED` as well, those are for sporadic fails.

Also make set the `gpu` and `intelgpu` LIT variables when testing the
`spirv64-intel` triple.

We have no DeviceRTL yet so basically everything fails, but we manage to
get

```
Total Discovered Tests: 432
Unsupported      : 169 (39.12%)
Passed           :  67 (15.51%)
Expectedly Failed: 196 (45.37%)
```

We still don't build the level zero plugin by default and these tests
don't run unless the plugin was built, so this has no effect on most
builds.

---------

Signed-off-by: Nick Sarnie <nick.sarnie@intel.com>
2026-01-07 19:20:30 +00:00

64 lines
1.8 KiB
C

// RUN: %libomptarget-compile-run-and-check-generic
// XFAIL: intelgpu
#include <assert.h>
#include <omp.h>
#include <stdio.h>
#pragma omp begin declare variant match(device = {kind(gpu)})
// Extension provided by the 'libc' project.
unsigned long long __llvm_omp_host_call(void *fn, void *args, size_t size);
#pragma omp declare target to(__llvm_omp_host_call) device_type(nohost)
#pragma omp end declare variant
#pragma omp begin declare variant match(device = {kind(cpu)})
// Dummy host implementation to make this work for all targets.
unsigned long long __llvm_omp_host_call(void *fn, void *args, size_t size) {
return ((unsigned long long (*)(void *))fn)(args);
}
#pragma omp end declare variant
typedef struct args_s {
int thread_id;
int block_id;
} args_t;
// CHECK-DAG: Thread: 0, Block: 0
// CHECK-DAG: Thread: 1, Block: 0
// CHECK-DAG: Thread: 0, Block: 1
// CHECK-DAG: Thread: 1, Block: 1
// CHECK-DAG: Thread: 0, Block: 2
// CHECK-DAG: Thread: 1, Block: 2
// CHECK-DAG: Thread: 0, Block: 3
// CHECK-DAG: Thread: 1, Block: 3
unsigned long long foo(void *data) {
assert(omp_is_initial_device() && "Not executing on host?");
args_t *args = (args_t *)data;
printf("Thread: %d, Block: %d\n", args->thread_id, args->block_id);
return 42;
}
void *fn_ptr = NULL;
#pragma omp declare target to(fn_ptr)
int main() {
fn_ptr = (void *)&foo;
#pragma omp target update to(fn_ptr)
int failed = 0;
#pragma omp target teams num_teams(4) map(tofrom : failed)
#pragma omp parallel num_threads(2)
{
args_t args = {omp_get_thread_num(), omp_get_team_num()};
unsigned long long res =
__llvm_omp_host_call(fn_ptr, &args, sizeof(args_t));
if (res != 42)
#pragma omp atomic write
failed = 1;
}
// CHECK: PASS
if (!failed)
printf("PASS\n");
}