#include #define N 100 int a[N][N]; void __attribute__((noinline, noclone)) foo (int m, int n) { int i, j; #pragma acc kernels { #pragma acc loop collapse(2) for (i = 0; i < m; i++) for (j = 0; j < n; j++) a[i][j] = 1; } } int main (void) { int i, j; for (i = 0; i < N; i++) for (j = 0; j < N; j++) a[i][j] = 0; foo (N, N); for (i = 0; i < N; i++) for (j = 0; j < N; j++) if (a[i][j] != 1) abort (); return 0; }