xref: /llvm-project/offload/test/mapping/present/zero_length_array_section.c (revision 330d8983d25d08580fc1642fea48b2473f47a9da)
1 // RUN: %libomptarget-compile-generic
2 // RUN: %libomptarget-run-fail-generic 2>&1 \
3 // RUN: | %fcheck-generic
4 
5 #include <stdio.h>
6 
main()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 }
37