summaryrefslogtreecommitdiff
path: root/libgomp/testsuite/libgomp.c/loop-1.c
blob: 11348dcfe41fb5589421e7cb336042ecdbe7028c (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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
/* Test that all loop iterations are touched.  This doesn't verify 
   scheduling order, merely coverage.  */

/* { dg-require-effective-target sync_int_long } */

#include <omp.h>
#include <string.h>
#include <assert.h>
#include "libgomp_g.h"


#define N 10000
static int S, E, INCR, CHUNK, NTHR;
static int data[N];

static void clean_data (void)
{
  memset (data, -1, sizeof (data));
}

static void test_data (void)
{
  int i, j;

  for (i = 0; i < S; ++i)
    assert (data[i] == -1);

  for (j = 0; i < E; ++i, j = (j + 1) % INCR)
    if (j == 0)
      assert (data[i] != -1);
    else
      assert (data[i] == -1);

  for (; i < N; ++i)
    assert (data[i] == -1);
}

static void set_data (long i, int val)
{
  int old;
  assert (i >= 0 && i < N);
  old = __sync_lock_test_and_set (data+i, val);
  assert (old == -1);
}
  

#define TMPL_1(sched)						\
static void f_##sched##_1 (void *dummy)				\
{								\
  int iam = omp_get_thread_num ();				\
  long s0, e0, i;						\
  if (GOMP_loop_##sched##_start (S, E, INCR, CHUNK, &s0, &e0))	\
    do								\
      {								\
	for (i = s0; i < e0; i += INCR)				\
	  set_data (i, iam);					\
      }								\
    while (GOMP_loop_##sched##_next (&s0, &e0));		\
  GOMP_loop_end ();						\
}								\
static void t_##sched##_1 (void)				\
{								\
  clean_data ();						\
  GOMP_parallel_start (f_##sched##_1, NULL, NTHR);		\
  f_##sched##_1 (NULL);						\
  GOMP_parallel_end ();						\
  test_data ();							\
}

TMPL_1(static)
TMPL_1(dynamic)
TMPL_1(guided)

#define TMPL_2(sched)					\
static void f_##sched##_2 (void *dummy)			\
{							\
  int iam = omp_get_thread_num ();			\
  long s0, e0, i;					\
  while (GOMP_loop_##sched##_next (&s0, &e0))		\
    {							\
      for (i = s0; i < e0; i += INCR)			\
	set_data (i, iam);				\
    }							\
  GOMP_loop_end_nowait ();				\
}							\
static void t_##sched##_2 (void)			\
{							\
  clean_data ();					\
  GOMP_parallel_loop_##sched##_start			\
    (f_##sched##_2, NULL, NTHR, S, E, INCR, CHUNK);	\
  f_##sched##_2 (NULL);					\
  GOMP_parallel_end ();					\
  test_data ();						\
}

TMPL_2(static)
TMPL_2(dynamic)
TMPL_2(guided)

static void test (void)
{
  t_static_1 ();
  t_dynamic_1 ();
  t_guided_1 ();
  t_static_2 ();
  t_dynamic_2 ();
  t_guided_2 ();
}

int main()
{
  omp_set_dynamic (0);

  NTHR = 4;

  S = 0, E = N, INCR = 1, CHUNK = 4;
  test ();

  S = 0, E = N, INCR = 2, CHUNK = 4;
  test ();

  S = 1, E = N-1, INCR = 1, CHUNK = 5;
  test ();

  S = 1, E = N-1, INCR = 2, CHUNK = 5;
  test ();

  S = 2, E = 4, INCR = 1, CHUNK = 1;
  test ();

  S = 0, E = N, INCR = 1, CHUNK = 0;
  t_static_1 ();
  t_static_2 ();

  S = 1, E = N-1, INCR = 1, CHUNK = 0;
  t_static_1 ();
  t_static_2 ();

  return 0;
}