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

   1 /* { dg-do run } */
   2 /* { dg-options "-O2" } */
   3 /* { dg-additional-options "-msse2" { target sse2_runtime } } */
   4 /* { dg-additional-options "-mavx" { target avx_runtime } } */
   5
   6 extern void abort ();
   7 int a[32][32] __attribute__((aligned (32))) = { { 1 } };
   8 struct S { int s; };
   9 #pragma omp declare reduction (+:struct S:omp_out.s += omp_in.s)
  10 #pragma omp declare reduction (foo:struct S:omp_out.s += omp_in.s)
  11 #pragma omp declare reduction (foo:int:omp_out += omp_in)
  12
  13 __attribute__((noinline, noclone)) int
  14 foo (void)
  15 {
  16   int i, j, u = 0;
  17   struct S s, t;
  18   s.s = 0; t.s = 0;
  19   #pragma omp simd aligned(a : 32) reduction(+:s) reduction(foo:t, u) collapse(2)
  20   for (i = 0; i < 32; i++)
  21     for (j = 0; j < 32; j++)
  22       {
  23         int x = a[i][j];
  24         s.s += x;
  25         t.s += x;
  26         u += x;
  27       }
  28   if (t.s != s.s || u != s.s)
  29     abort ();
  30   return s.s;
  31 }
  32
  33 int
  34 main ()
  35 {
  36   int i, j;
  37   for (i = 0; i < 32; i++)
  38     for (j = 0; j < 32; j++)
  39       a[i][j] = j + (i / 4);
  40   int s = foo ();
  41   if (s != 19456)
  42     abort ();
  43   return 0;
  44 }