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#include <assert.h>
#include <openacc.h>
#include <gomp-constants.h>
#define N 100
#define GANG_ID(I) \
(acc_on_device (acc_device_not_host) \
? __builtin_goacc_parlevel_id (GOMP_DIM_GANG) \
: (I))
void
test_static(int *a, int num_gangs, int sarg)
{
int i, j;
if (acc_on_device (acc_device_host))
return;
if (sarg == 0)
sarg = 1;
for (i = 0; i < N / sarg; i++)
for (j = 0; j < sarg; j++)
assert (a[i*sarg+j] == i % num_gangs);
}
void
test_nonstatic(int *a, int gangs)
{
int i, j;
if (acc_on_device (acc_device_host))
return;
for (i = 0; i < N; i+=gangs)
for (j = 0; j < gangs; j++)
assert (a[i+j] == i/gangs);
}
int
main ()
{
int a[N];
int i, x;
#pragma acc parallel loop gang (static:*) num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_nonstatic (a, 10);
#pragma acc parallel loop gang (static:1) num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_static (a, 10, 1);
#pragma acc parallel loop gang (static:2) num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_static (a, 10, 2);
#pragma acc parallel loop gang (static:5) num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_static (a, 10, 5);
#pragma acc parallel loop gang (static:20) num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_static (a, 10, 20);
/* Non-static gang. */
#pragma acc parallel loop gang num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_nonstatic (a, 10);
/* Static arguments with a variable expression. */
x = 20;
#pragma acc parallel loop gang (static:0+x) num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_static (a, 10, 20);
x = 20;
#pragma acc parallel loop gang (static:x) num_gangs (10)
for (i = 0; i < 100; i++)
a[i] = GANG_ID (i);
test_static (a, 10, 20);
return 0;
}
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