extern void abort (void); int a[16], b[16], c[16], d[5][2]; __attribute__((noinline, noclone)) void foo (int x, int y) { int i; #pragma omp for schedule (static, 1) reduction (+:a[:3]) for (i = 0; i < 64; i++) { a[0] += i; a[1] += 2 * i; a[2] += 3 * i; } #pragma omp for schedule (guided) reduction (+:b[4:3]) for (i = 0; i < 64; i++) { b[4] += i; b[5] += 2 * i; b[6] += 3 * i; } #pragma omp for schedule (static) reduction (+:c[x:4]) for (i = 0; i < 64; i++) { c[9] += i; c[10] += 2 * i; c[11] += 3 * i; c[12] += 4 * i; } #pragma omp for reduction (+:d[x - 8:2][y:]) for (i = 0; i < 64; i++) { d[1][0] += i; d[1][1] += 2 * i; d[2][0] += 3 * i; d[2][1] += 4 * i; } } int main () { int i; #pragma omp parallel foo (9, 0); for (i = 0; i < 16; i++) if (a[i] != (i < 3 ? 64 * 63 / 2 * (i + 1) : 0) || b[i] != ((i >= 4 && i < 7) ? 64 * 63 / 2 * (i - 3) : 0) || c[i] != ((i >= 9 && i < 13) ? 64 * 63 / 2 * (i - 8) : 0)) abort (); for (i = 0; i < 5; i++) if (d[i][0] != ((i && i <= 2) ? 64 * 63 / 2 * (2 * i - 1) : 0) || d[i][1] != ((i && i <= 2) ? 64 * 63 / 2 * (2 * i) : 0)) abort (); return 0; }