libgomp/testsuite/libgomp.c/pr33880.c

   1 /* PR middle-end/33880 */
   2 /* { dg-do run } */
   3
   4 extern void abort (void);
   5
   6 void
   7 test1 (void)
   8 {
   9   int i = 0, j = 0;
  10   void bar (void)
  11   {
  12     i++;
  13     j++;
  14   }
  15   bar ();
  16   #pragma omp parallel for num_threads(4)
  17     for (i = 0; i < 100; i++)
  18       #pragma omp atomic
  19         j += 1;
  20   if (j != 101)
  21     abort ();
  22   #pragma omp parallel for lastprivate(i) num_threads(2)
  23     for (i = 0; i < 100; i++)
  24       #pragma omp atomic
  25         j += 1;
  26   if (i != 100)
  27     abort ();
  28   i = 3;
  29   bar ();
  30   if (j != 202)
  31     abort ();
  32   if (i != 4)
  33     abort ();
  34 }
  35
  36 void
  37 test2 (void)
  38 {
  39   int i = -1, j = 99, k, l = 9, m = 0;
  40   void bar (void)
  41   {
  42     i++;
  43     j++;
  44     l++;
  45     m++;
  46   }
  47   bar ();
  48   #pragma omp parallel for num_threads(4)
  49     for (k = i; k < j; k += l)
  50       #pragma omp atomic
  51         m += 1;
  52   bar ();
  53   if (i != 1 || j != 101 || l != 11 || m != 12)
  54     abort ();
  55 }
  56
  57 void
  58 test3 (void)
  59 {
  60   int i, j, k, l, m;
  61   void bar (void)
  62   {
  63   #pragma omp parallel for num_threads(4)
  64     for (i = j; i < k; i += l)
  65       #pragma omp atomic
  66         m += 1;
  67   }
  68   void baz (void)
  69   {
  70   #pragma omp parallel for num_threads(2) lastprivate(i)
  71     for (i = j; i < k * 2; i += l / 2)
  72       #pragma omp atomic
  73         m += 1;
  74   }
  75   i = 7;
  76   j = 0;
  77   k = 100;
  78   l = 2;
  79   m = 0;
  80   bar ();
  81   if (j != 0 || k != 100 || l != 2 || m != 50)
  82     abort ();
  83   baz ();
  84   if (i != 200 || j != 0 || k != 100 || l != 2 || m != 250)
  85     abort ();
  86 }
  87
  88 void
  89 test4 (void)
  90 {
  91   int i, j, k, l, m = 0;
  92   int foo (void)
  93   {
  94     return j;
  95   }
  96   int bar (void)
  97   {
  98     return k;
  99   }
 100   int baz (void)
 101   {
 102     return l;
 103   }
 104   j = 0;
 105   k = 1000;
 106   l = 2;
 107   #pragma omp parallel for num_threads(8) lastprivate(i)
 108   for (i = foo (); i < bar (); i += baz ())
 109     #pragma omp atomic
 110       m += 1;
 111   if (i != 1000 || m != 500 || j != 0 || k != 1000 || l != 2)
 112     abort ();
 113 }
 114
 115 int
 116 main (void)
 117 {
 118   test1 ();
 119   test2 ();
 120   test3 ();
 121   test4 ();
 122   return 0;
 123 }