libgomp/testsuite/libgomp.c/simd-8.c

   1 /* { dg-do run } */
   2 /* { dg-additional-options "-msse2" { target sse2_runtime } } */
   3 /* { dg-additional-options "-mavx" { target avx_runtime } } */
   4
   5 extern void abort ();
   6 int a[32][32] __attribute__((aligned (32))) = { { 1 } };
   7 struct S { int s; };
   8 #pragma omp declare reduction (+:struct S:omp_out.s += omp_in.s)
   9 #pragma omp declare reduction (foo:struct S:omp_out.s += omp_in.s)
  10 #pragma omp declare reduction (foo:int:omp_out += omp_in)
  11
  12 __attribute__((noinline, noclone)) int
  13 foo (void)
  14 {
  15   int i, j, u = 0;
  16   struct S s, t;
  17   s.s = 0; t.s = 0;
  18   #pragma omp simd aligned(a : 32) reduction(+:s) reduction(foo:t, u) collapse(2)
  19   for (i = 0; i < 32; i++)
  20     for (j = 0; j < 32; j++)
  21       {
  22         int x = a[i][j];
  23         s.s += x;
  24         t.s += x;
  25         u += x;
  26       }
  27   if (t.s != s.s || u != s.s)
  28     abort ();
  29   return s.s;
  30 }
  31
  32 int
  33 main ()
  34 {
  35   int i, j;
  36   for (i = 0; i < 32; i++)
  37     for (j = 0; j < 32; j++)
  38       a[i][j] = j + (i / 4);
  39   int s = foo ();
  40   if (s != 19456)
  41     abort ();
  42   return 0;
  43 }