offload/test/mapping/lambda_by_value.cpp

   1 // RUN: %libomptarget-compilexx-run-and-check-generic
   2
   3 #include <stdint.h>
   4 #include <stdio.h>
   5
   6 // CHECK: before: [[V1:111]] [[V2:222]] [[PX:0x[^ ]+]] [[PY:0x[^ ]+]]
   7 // CHECK: lambda: [[V1]] [[V2]] [[PX_TGT:0x[^ ]+]] 0x{{.*}}
   8 // CHECK: tgt   : [[V2]] [[PX_TGT]] 1
   9 // CHECK: out   : [[V2]] [[V2]] [[PX]] [[PY]]
  10
  11 #pragma omp begin declare target
  12 int a = -1, *c;
  13 long b = -1;
  14 const long *d;
  15 int e = -1, *f, g = -1;
  16 #pragma omp end declare target
  17
  18 int main() {
  19   int x[10];
  20   long y[8];
  21   x[1] = 111;
  22   y[1] = 222;
  23
  24   auto lambda = [&x, y]() {
  25     a = x[1];
  26     b = y[1];
  27     c = &x[0];
  28     d = &y[0];
  29     printf("lambda: %d %ld %p %p\n", x[1], y[1], &x[0], &y[0]);
  30     x[1] = y[1];
  31   };
  32   printf("before: %d %ld %p %p\n", x[1], y[1], &x[0], &y[0]);
  33
  34   intptr_t xp = (intptr_t)&x[0];
  35 #pragma omp target firstprivate(xp)
  36   {
  37     lambda();
  38     e = x[1];
  39     f = &x[0];
  40     g = (&x[0] != (int *)xp);
  41     printf("tgt   : %d %p %d\n", x[1], &x[0], (&x[0] != (int *)xp));
  42   }
  43 #pragma omp target update from(a, b, c, d, e, f, g)
  44   printf("lambda: %d %ld %p %p\n", a, b, c, d);
  45   printf("tgt   : %d %p %d\n", e, f, g);
  46   printf("out   : %d %ld %p %p\n", x[1], y[1], &x[0], &y[0]);
  47
  48   return 0;
  49 }