offload/test/mapping/ptr_and_obj_motion.c

   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
  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
  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
  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 }