offload/test/mapping/declare_mapper_nested_default_mappers_complex_structure.cpp

   1 // RUN: %libomptarget-compilexx-run-and-check-aarch64-unknown-linux-gnu
   2 // RUN: %libomptarget-compilexx-run-and-check-powerpc64-ibm-linux-gnu
   3 // RUN: %libomptarget-compilexx-run-and-check-powerpc64le-ibm-linux-gnu
   4 // RUN: %libomptarget-compilexx-run-and-check-x86_64-unknown-linux-gnu
   5 // RUN: %libomptarget-compilexx-run-and-check-nvptx64-nvidia-cuda
   6
   7 #include <assert.h>
   8 #include <omp.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11
  12 #define N 2
  13
  14 class MyObjectA {
  15 public:
  16   MyObjectA() {
  17     data1 = 1;
  18     data2 = 2;
  19   }
  20   void show() {
  21     printf("\t\tObject A Contents:\n");
  22     printf("\t\t\tdata1 = %d  data2 = %d\n", data1, data2);
  23   }
  24   void foo() {
  25     data1 += 10;
  26     data2 += 20;
  27   }
  28   int data1;
  29   int data2;
  30 };
  31
  32 class MyObjectB {
  33 public:
  34   MyObjectB() {
  35     arr = new MyObjectA[N];
  36     len = N;
  37   }
  38   void show() {
  39     printf("\tObject B Contents:\n");
  40     for (int i = 0; i < len; i++)
  41       arr[i].show();
  42   }
  43   void foo() {
  44     for (int i = 0; i < len; i++)
  45       arr[i].foo();
  46   }
  47   MyObjectA *arr;
  48   int len;
  49 };
  50 #pragma omp declare mapper(MyObjectB obj) map(obj, obj.arr[ : obj.len])
  51
  52 class MyObjectC {
  53 public:
  54   MyObjectC() {
  55     arr = new MyObjectB[N];
  56     len = N;
  57   }
  58   void show() {
  59     printf("Object C Contents:\n");
  60     for (int i = 0; i < len; i++)
  61       arr[i].show();
  62   }
  63   void foo() {
  64     for (int i = 0; i < len; i++)
  65       arr[i].foo();
  66   }
  67   MyObjectB *arr;
  68   int len;
  69 };
  70 #pragma omp declare mapper(MyObjectC obj) map(obj, obj.arr[ : obj.len])
  71
  72 int main(void) {
  73   MyObjectC *outer = new MyObjectC[N];
  74
  75   printf("Original data hierarchy:\n");
  76   for (int i = 0; i < N; i++)
  77     outer[i].show();
  78
  79   printf("Sending data to device...\n");
  80 #pragma omp target enter data map(to : outer[ : N])
  81
  82   printf("Calling foo()...\n");
  83 #pragma omp target teams distribute parallel for
  84   for (int i = 0; i < N; i++)
  85     outer[i].foo();
  86
  87   printf("foo() complete!\n");
  88
  89   printf("Sending data back to host...\n");
  90 #pragma omp target exit data map(from : outer[ : N])
  91
  92   printf("Modified Data Hierarchy:\n");
  93   for (int i = 0; i < N; i++)
  94     outer[i].show();
  95
  96   printf("Testing for correctness...\n");
  97   for (int i = 0; i < N; ++i)
  98     for (int j = 0; j < N; ++j)
  99       for (int k = 0; k < N; ++k) {
 100         printf("outer[%d].arr[%d].arr[%d].data1 = %d.\n", i, j, k,
 101                outer[i].arr[j].arr[k].data1);
 102         printf("outer[%d].arr[%d].arr[%d].data2 = %d.\n", i, j, k,
 103                outer[i].arr[j].arr[k].data2);
 104         assert(outer[i].arr[j].arr[k].data1 == 11 &&
 105                outer[i].arr[j].arr[k].data2 == 22);
 106       }
 107   // CHECK: outer[0].arr[0].arr[0].data1 = 11.
 108   // CHECK: outer[0].arr[0].arr[0].data2 = 22.
 109   // CHECK: outer[0].arr[0].arr[1].data1 = 11.
 110   // CHECK: outer[0].arr[0].arr[1].data2 = 22.
 111   // CHECK: outer[0].arr[1].arr[0].data1 = 11.
 112   // CHECK: outer[0].arr[1].arr[0].data2 = 22.
 113   // CHECK: outer[0].arr[1].arr[1].data1 = 11.
 114   // CHECK: outer[0].arr[1].arr[1].data2 = 22.
 115   // CHECK: outer[1].arr[0].arr[0].data1 = 11.
 116   // CHECK: outer[1].arr[0].arr[0].data2 = 22.
 117   // CHECK: outer[1].arr[0].arr[1].data1 = 11.
 118   // CHECK: outer[1].arr[0].arr[1].data2 = 22.
 119   // CHECK: outer[1].arr[1].arr[0].data1 = 11.
 120   // CHECK: outer[1].arr[1].arr[0].data2 = 22.
 121   // CHECK: outer[1].arr[1].arr[1].data1 = 11.
 122   // CHECK: outer[1].arr[1].arr[1].data2 = 22.
 123   assert(outer[1].arr[1].arr[0].data1 == 11 &&
 124          outer[1].arr[1].arr[0].data2 == 22 &&
 125          outer[1].arr[1].arr[1].data1 == 11 &&
 126          outer[1].arr[1].arr[1].data2 == 22);
 127
 128   return 0;
 129 }