summaryrefslogtreecommitdiff
path: root/libgomp/testsuite/libgomp.c/pr58392.c
blob: 6ca97adc2d3f2c0d892aa7db25e0004e5a1eb0e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
/* PR tree-optimization/58392 */
/* { dg-do run } */
/* { dg-options "-O2" } */
/* { dg-additional-options "-msse2" { target sse2_runtime } } */
/* { dg-additional-options "-mavx" { target avx_runtime } } */

extern void abort (void);
int d[32 * 32];

__attribute__((noinline, noclone)) int
foo (int a, int b)
{
  int j, c = 0;
  #pragma omp parallel for reduction(+: c)
    for (j = 0; j < a; j += 32)
      {
	int l;
	#pragma omp simd reduction(+: c)
	  for (l = 0; l < b; ++l)
	    c += d[j + l];
      }
  return c;
}

__attribute__((noinline, noclone)) int
bar (int a)
{
  int j, c = 0;
  #pragma omp parallel for simd reduction(+: c)
    for (j = 0; j < a; ++j)
      c += d[j];
  return c;
}

__attribute__((noinline)) static int
baz (int a)
{
  int j, c = 0;
  #pragma omp simd reduction(+: c)
    for (j = 0; j < a; ++j)
      c += d[j];
  return c;
}

int
main ()
{
  int i;
  for (i = 0; i < 32 * 32; i++)
    d[i] = (i & 31);
  if (foo (32 * 32, 32) != (31 * 32 / 2) * 32)
    abort ();
  if (bar (32 * 32) != (31 * 32 / 2) * 32)
    abort ();
  if (baz (32 * 32) != (31 * 32 / 2) * 32)
    abort ();
  return 0;
}