libgomp/testsuite/libgomp.c/pr66199-3.c

   1 /* PR middle-end/66199 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2" } */
   4
   5 int u[1024], v[1024], w[1024];
   6
   7 __attribute__((noinline, noclone)) long
   8 f1 (long a, long b)
   9 {
  10   long d;
  11   #pragma omp parallel for lastprivate (d) default(none) firstprivate (a, b) shared(u, v, w)
  12   for (d = a; d < b; d++)
  13     u[d] = v[d] + w[d];
  14   return d;
  15 }
  16
  17 __attribute__((noinline, noclone)) long
  18 f2 (long a, long b, long c)
  19 {
  20   long d, e;
  21   #pragma omp parallel for lastprivate (d) default(none) firstprivate (a, b) shared(u, v, w) linear(c:5) lastprivate(e)
  22   for (d = a; d < b; d++)
  23     {
  24       u[d] = v[d] + w[d];
  25       c += 5;
  26       e = c;
  27     }
  28   return d + c + e;
  29 }
  30
  31 __attribute__((noinline, noclone)) long
  32 f3 (long a1, long b1, long a2, long b2)
  33 {
  34   long d1, d2;
  35   #pragma omp parallel for default(none) firstprivate (a1, b1, a2, b2) shared(u, v, w) lastprivate(d1, d2) collapse(2)
  36   for (d1 = a1; d1 < b1; d1++)
  37     for (d2 = a2; d2 < b2; d2++)
  38       u[d1 * 32 + d2] = v[d1 * 32 + d2] + w[d1 * 32 + d2];
  39   return d1 + d2;
  40 }
  41
  42 int
  43 main ()
  44 {
  45   if (f1 (0, 1024) != 1024
  46       || f2 (0, 1024, 17) != 1024 + 2 * (17 + 5 * 1024)
  47       || f3 (0, 32, 0, 32) != 64)
  48     __builtin_abort ();
  49   return 0;
  50 }