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// RUN: %compile-run-and-check
#include <omp.h>
#include <stdio.h>
#pragma omp declare target
static void putValueInParallel(int *ptr, int value) {
#pragma omp parallel
{
*ptr = value;
}
}
static int getId() {
int id;
putValueInParallel(&id, omp_get_thread_num());
return id;
}
#pragma omp end declare target
const int MaxThreads = 1024;
const int Threads = 64;
int main(int argc, char *argv[]) {
int master;
int check[MaxThreads];
for (int i = 0; i < MaxThreads; i++) {
check[i] = 0;
}
#pragma omp target map(master, check[:])
{
master = getId();
#pragma omp parallel num_threads(Threads)
{
check[omp_get_thread_num()] = getId();
}
}
// CHECK: master = 0.
printf("master = %d.\n", master);
// CHECK-NOT: invalid
for (int i = 0; i < MaxThreads; i++) {
if (i < Threads) {
if (check[i] != i) {
printf("invalid: check[%d] should be %d, is %d\n", i, i, check[i]);
}
} else if (check[i] != 0) {
printf("invalid: check[%d] should be 0, is %d\n", i, check[i]);
}
}
return 0;
}
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