offload/test/mapping/present/zero_length_array_section.c

   1 // RUN: %libomptarget-compile-generic
   2 // RUN: %libomptarget-run-fail-generic 2>&1 \
   3 // RUN: | %fcheck-generic
   4
   5 #include <stdio.h>
   6
   7 int main() {
   8   int arr[5];
   9
  10   // CHECK: addr=0x[[#%x,HOST_ADDR:]]
  11   fprintf(stderr, "addr=%p\n", arr);
  12
  13   // CHECK-NOT: omptarget
  14 #pragma omp target data map(alloc : arr[0 : 5])
  15 #pragma omp target map(present, alloc : arr[0 : 0])
  16   ;
  17
  18   // CHECK: arr is present
  19   fprintf(stderr, "arr is present\n");
  20
  21   // arr[0:0] doesn't create an actual mapping in the first directive.
  22   //
  23   // CHECK: omptarget message: device mapping required by 'present' map type modifier does not exist for host address 0x{{0*}}[[#HOST_ADDR]] (0 bytes)
  24   // CHECK: omptarget error: Call to getTargetPointer returned null pointer ('present' map type modifier).
  25   // CHECK: omptarget error: Call to targetDataBegin failed, abort target.
  26   // CHECK: omptarget error: Failed to process data before launching the kernel.
  27   // CHECK: omptarget fatal error 1: failure of target construct while offloading is mandatory
  28 #pragma omp target data map(alloc : arr[0 : 0])
  29 #pragma omp target map(present, alloc : arr[0 : 0])
  30   ;
  31
  32   // CHECK-NOT: arr is present
  33   fprintf(stderr, "arr is present\n");
  34
  35   return 0;
  36 }