| static double identity[4][4] = {{1, 0, 0, 0}, |
| {0, 1, 0, 0}, |
| {0, 0, 1, 0}, |
| {0, 0, 0, 1}}; |
| static double expected[4][4] = {{1, 0, 0, 0}, |
| {0, 0, 0, 0}, |
| {0, 0, 0, 0}, |
| {0, 0, 0, 0}}; |
| |
| static void __attribute__((noinline,noclone)) |
| kernel(double A[4][4]) |
| { |
| double tmp[4][4]; |
| for (int j = 0; j < 4; j++) |
| for (int k = 0; k < 4; k++) |
| tmp[j][k] = identity[j][0] * identity[j][k]; |
| for (int j = 0; j < 4; j++ ) |
| for (int k = 0; k < 4; k++) |
| A[j][k] = tmp[j][k]; |
| } |
| |
| int main(void) |
| { |
| double A[4][4] = {{0.0}}; |
| kernel(A); |
| for ( int i = 0; i < 4; i++ ) |
| for ( int j = 0; j < 4; j++ ) |
| if (A[i][j] != expected[i][j]) |
| __builtin_abort (); |
| return 0; |
| } |
