#include #define n 10000 unsigned int a[n]; void __attribute__((noinline,noclone)) foo (void) { int i; unsigned int sum = 1; #pragma acc kernels copyin (a[0:n]) copy (sum) { for (i = 0; i < n; ++i) sum += a[i]; } if (sum != 5001) abort (); } int main () { int i; for (i = 0; i < n; ++i) a[i] = i % 2; foo (); return 0; }