libgomp/testsuite/libgomp.c/simd-5.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[1024] __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, u = 0, q = 0;
  16   struct S s, t;
  17   s.s = 0; t.s = 0;
  18   #pragma omp simd aligned(a : 32) reduction(+:s, q) reduction(foo:t, u) \
  19               safelen(1)
  20   for (i = 0; i < 1024; i++)
  21     {
  22       int x = a[i];
  23       s.s += x;
  24       t.s += x;
  25       u += x;
  26       q++;
  27     }
  28   if (t.s != s.s || u != s.s || q != 1024)
  29     abort ();
  30   return s.s;
  31 }
  32
  33 int
  34 main ()
  35 {
  36   int i;
  37   for (i = 0; i < 1024; i++)
  38     a[i] = (i & 31) + (i / 128);
  39   int s = foo ();
  40   if (s != 19456)
  41     abort ();
  42   return 0;
  43 }