libgomp/testsuite/libgomp.oacc-c-c++-common/offset-1.c

   1 /* { dg-do run } */
   2 /* { dg-skip-if "" { *-*-* } { "*" } { "-DACC_MEM_SHARED=0" } } */
   3
   4 #include <openacc.h>
   5 #include <string.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <stdbool.h>
   9
  10 int
  11 main(int argc, char **argv)
  12 {
  13     int N = 8;
  14     float *a, *b;
  15     int i;
  16
  17     a = (float *) malloc(N * sizeof (float));
  18     b = (float *) malloc(N * sizeof (float));
  19
  20     for (i = 0; i < N; i++)
  21     {
  22         a[i] = 2.0;
  23         b[i] = 5.0;
  24     }
  25
  26 #pragma acc parallel copyin(a[2:4]) copyout(b[2:4])
  27     {
  28         b[2] = a[2];
  29         b[3] = a[3];
  30     }
  31
  32     for (i = 2; i < 4; i++)
  33     {
  34         if (a[i] != 2.0)
  35             abort();
  36
  37         if (b[i] != 2.0)
  38             abort();
  39     }
  40
  41     for (i = 0; i < N; i++)
  42     {
  43         a[i] = 3.0;
  44         b[i] = 1.0;
  45     }
  46
  47 #pragma acc parallel copyin(a[0:4]) copyout(b[0:4])
  48     {
  49         b[0] = a[0];
  50         b[1] = a[1];
  51         b[2] = a[2];
  52         b[3] = a[3];
  53     }
  54
  55     for (i = 0; i < 4; i++)
  56     {
  57         if (a[i] != 3.0)
  58             abort();
  59
  60         if (b[i] != 3.0)
  61             abort();
  62     }
  63
  64     for (i = 0; i < N; i++)
  65     {
  66         a[i] = 9.0;
  67         b[i] = 6.0;
  68     }
  69
  70 #pragma acc parallel copyin(a[0:4]) copyout(b[4:4])
  71     {
  72         b[4] = a[0];
  73         b[5] = a[1];
  74         b[6] = a[2];
  75         b[7] = a[3];
  76     }
  77
  78     for (i = 0; i < 4; i++)
  79     {
  80         if (a[i] != 9.0)
  81             abort();
  82     }
  83
  84     for (i = 4; i < 8; i++)
  85     {
  86         if (b[i] != 9.0)
  87             abort();
  88     }
  89
  90     if (acc_is_present (a, (N * sizeof (float))))
  91       abort();
  92
  93     if (acc_is_present (b, (N * sizeof (float))))
  94       abort();
  95
  96     return 0;
  97 }