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1// RUN: %libomptarget-compile-generic -fopenmp-version=512// RUN: %libomptarget-run-fail-generic 2>&1 \3// RUN: | %fcheck-generic4 5// The host memory layout for the following program looks like this:6//7//   | 4 bytes | 4 bytes | 8 bytes |8//   |   s.x   |   s.y   |   s.z   |9//   `-----------------------------'10//11// s is always at least 8-byte aligned in host memory due to s.z, so12// libomptarget's device padding for map(s.y,s.z) always maps to host memory13// that includes s.x.  At one time, s.x appeared to be mapped as a result, but14// libomptarget has since been fixed not to consider device padding as mapped to15// host memory.16 17#include <omp.h>18#include <stdio.h>19 20int main() {21  struct S { int x; int y; double z; } s = {1, 2, 3};22 23  // CHECK: &s.x = 0x[[#%x,HOST_ADDR:]], size = [[#%u,SIZE:]]24  fprintf(stderr, "&s = %p\n", &s);25  fprintf(stderr, "&s.x = %p, size = %ld\n", &s.x, sizeof s.x);26  fprintf(stderr, "&s.y = %p\n", &s.y);27  fprintf(stderr, "&s.z = %p\n", &s.z);28 29  // CHECK: s.x is present: 030  // CHECK: s.x = 1{{$}}31  #pragma omp target enter data map(alloc: s.y, s.z)32  int dev = omp_get_default_device();33  fprintf(stderr, "s.x is present: %d\n", omp_target_is_present(&s.x, dev));34  #pragma omp target update from(s.x) // should have no effect35  fprintf(stderr, "s.x = %d\n", s.x);36 37  // CHECK: omptarget message: device mapping required by 'present' map type modifier does not exist for host address 0x{{0*}}[[#HOST_ADDR]] ([[#SIZE]] bytes)38  // CHECK: omptarget error: Call to getTargetPointer returned null pointer ('present' map type modifier).39  // CHECK: omptarget fatal error 1: failure of target construct while offloading is mandatory40  #pragma omp target enter data map(present, alloc: s.x)41 42  return 0;43}44