xref: /llvm-project/offload/test/mapping/ptr_and_obj_motion.c (revision 330d8983d25d08580fc1642fea48b2473f47a9da) 
1 // RUN: %libomptarget-compile-run-and-check-generic
2 
3 #include <stdio.h>
4 
5 typedef struct {
6   double *dataptr;
7   int dummy1;
8   int dummy2;
9 } DV;
10 
init(double vertexx[])11 void init(double vertexx[]) {
12 #pragma omp target map(vertexx[0 : 100])
13   {
14     printf("In init: %lf, expected 100.0\n", vertexx[77]);
15     vertexx[77] = 77.0;
16   }
17 }
18 
change(DV * dvptr)19 void change(DV *dvptr) {
20 #pragma omp target map(dvptr->dataptr[0 : 100])
21   {
22     printf("In change: %lf, expected 77.0\n", dvptr->dataptr[77]);
23     dvptr->dataptr[77] += 1.0;
24   }
25 }
26 
main()27 int main() {
28   double vertexx[100];
29   vertexx[77] = 100.0;
30 
31   DV dv;
32   dv.dataptr = &vertexx[0];
33 
34 #pragma omp target enter data map(to : vertexx[0 : 100])
35 
36   init(vertexx);
37   change(&dv);
38 
39 #pragma omp target exit data map(from : vertexx[0 : 100])
40 
41   // CHECK: Final: 78.0
42   printf("Final: %lf\n", vertexx[77]);
43 }
44