https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99329
Bug ID: 99329
Summary: [OpenMP] device_type(nohost) & host code diagnostic
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: accepts-invalid, openmp
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: jakub at gcc dot gnu.org
Target Milestone: ---
Based on https://github.com/SOLLVE/sollve_vv/pull/304#issuecomment-788114379
not yet looked into it.
#pragma omp declare target
int a[N], b[N], c[N];
int i = 0;
#pragma omp end declare target
void update() {
for (i = 0; i < N; i++) {
a[i] += 1;
b[i] += 2;
c[i] += 3;
}
}
#pragma omp declare target to(update) device_type(nohost)
int test_declare_target_device_type_nohost() {
#pragma omp target update to(a,b,c)
#pragma omp target
{
// if (!omp_is_initial_device()) // < no change with this.
update();
}
...
CLANG gives for this:
nohost.c:42:6: error: function with 'device_type(nohost)' is not available on
host
update();
^
nohost.c:34:31: note: marked as 'device_type(nohost)' here
#pragma omp declare target to(update) device_type(nohost)
