Retro68/gcc/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-3.c
Wolfgang Thaller 6fbf4226da gcc-9.1
2019-06-20 20:10:10 +02:00

32 lines
572 B
C

#include <assert.h>
/* Test of gang-private variables declared on loop directive, with broadcasting
to partitioned vectors. */
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)
{
#pragma acc loop gang(num:32) private(x)
for (i = 0; i < 32; i++)
{
x = i * 2;
#pragma acc loop vector(length:32)
for (int j = 0; j < 32; j++)
arr[i * 32 + j] += x;
}
}
for (i = 0; i < 32 * 32; i++)
assert (arr[i] == i + (i / 32) * 2);
return 0;
}