File: declare_mapper_target_data.cpp

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (35 lines) | stat: -rw-r--r-- 618 bytes parent folder | download | duplicates (18) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
 
// RUN: %libomptarget-compile-run-and-check-generic

#include <cstdio>
#include <cstdlib>

#define NUM 1024

class C {
public:
  int *a;
};

#pragma omp declare mapper(id : C s) map(s.a[0 : NUM])

int main() {
  C c;
  c.a = (int *)malloc(sizeof(int) * NUM);
  for (int i = 0; i < NUM; i++) {
    c.a[i] = 1;
  }
#pragma omp target data map(mapper(id), tofrom : c)
  {
#pragma omp target teams distribute parallel for
    for (int i = 0; i < NUM; i++) {
      ++c.a[i];
    }
  }
  int sum = 0;
  for (int i = 0; i < NUM; i++) {
    sum += c.a[i];
  }
  // CHECK: Sum = 2048
  printf("Sum = %d\n", sum);
  return 0;
}