#include /* Test of worker-private variables declared on a loop directive. */ int main (int argc, char* argv[]) { int x = 5, i, arr[32 * 32]; for (i = 0; i < 32 * 32; i++) arr[i] = i; #pragma acc kernels copy(arr) { int j; #pragma acc loop gang(num:32) for (i = 0; i < 32; i++) { #pragma acc loop worker(num:32) private(x) for (j = 0; j < 32; j++) { x = i ^ j * 3; /* Try to ensure 'x' accesses doesn't get optimized into a temporary. */ __asm__ __volatile__ (""); arr[i * 32 + j] += x; } } } for (i = 0; i < 32 * 32; i++) assert (arr[i] == i + ((i / 32) ^ (i % 32) * 3)); return 0; }