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// RUN: %libomp-compile-and-run
// UNSUPPORTED: gcc
// This test is incompatible with gcc because of the explicit call to
// __kmpc_doacross_fini(). gcc relies on an implicit call to this function
// when the last iteration is executed inside the GOMP_loop_*_next() functions.
// Hence, in gcc, having the explicit call leads to __kmpc_doacross_fini()
// being called twice.
#include <stdio.h>
#define N 1000
struct dim {
long long lo; // lower
long long up; // upper
long long st; // stride
};
extern void __kmpc_doacross_init(void*, int, int, struct dim *);
extern void __kmpc_doacross_wait(void*, int, long long*);
extern void __kmpc_doacross_post(void*, int, long long*);
extern void __kmpc_doacross_fini(void*, int);
extern int __kmpc_global_thread_num(void*);
int main()
{
int i;
int iter[N];
struct dim dims;
for( i = 0; i < N; ++i )
iter[i] = 1;
dims.lo = 1;
dims.up = N-1;
dims.st = 1;
#pragma omp parallel num_threads(4)
{
int i, gtid;
long long vec;
gtid = __kmpc_global_thread_num(NULL);
__kmpc_doacross_init(NULL,gtid,1,&dims); // thread starts the loop
#pragma omp for nowait schedule(dynamic)
for( i = 1; i < N; ++i )
{
// runtime call corresponding to #pragma omp ordered depend(sink:i-1)
vec=i-1;
__kmpc_doacross_wait(NULL,gtid,&vec);
// user's code
iter[i] = iter[i-1] + 1;
// runtime call corresponding to #pragma omp ordered depend(source)
vec=i;
__kmpc_doacross_post(NULL,gtid,&vec);
}
// thread finishes the loop (should be before the loop barrier)
__kmpc_doacross_fini(NULL,gtid);
}
if( iter[N-1] == N ) {
printf("passed\n");
} else {
printf("failed %d != %d\n", iter[N-1], N);
return 1;
}
return 0;
}
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