blob: 571668eb36a96ce8290a677f7d5ae8e4bb5a86db (
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
|
/* Minimized from for-5.c. */
#include <stdio.h>
#include <stdlib.h>
/* Size of array we want to write. */
#define N 32
/* Size of extra space before and after. */
#define CANARY_SIZE (N * 32)
/* Start of array we want to write. */
#define BASE (CANARY_SIZE)
// Total size to be allocated.
#define ALLOC_SIZE (CANARY_SIZE + N + CANARY_SIZE)
#pragma omp declare target
int a[ALLOC_SIZE];
#pragma omp end declare target
int
main (void)
{
/* Use variable step in for loop. */
int s = 1;
#pragma omp target update to(a)
/* Write a[BASE] .. a[BASE + N - 1]. */
#pragma omp target simd
for (int i = N - 1; i > -1; i -= s)
a[BASE + i] = 1;
#pragma omp target update from(a)
for (int i = 0; i < ALLOC_SIZE; i++)
{
int expected = (BASE <= i && i < BASE + N) ? 1 : 0;
if (a[i] == expected)
continue;
printf ("Expected %d, got %d at base[%d]\n", expected, a[i], i - BASE);
abort ();
}
return 0;
}
|
