| #include "tree-vect.h" |
| |
| extern void abort (void); |
| |
| static void |
| foo (int *out, const int *lp, unsigned samples) |
| { |
| int x, target; |
| for (x = 0, target = 0; x < (int)samples; x += 2, target++) |
| { |
| out[x] = lp[target]; |
| out[x - 1] = out[x - 2] + out[x]; |
| } |
| } |
| |
| static void |
| foo_novec (int *out, const int *lp, unsigned samples) |
| { |
| int x, target; |
| for (x = 0, target = 0; x < (int)samples; x += 2, target++) |
| { |
| out[x] = lp[target]; |
| out[x - 1] = out[x - 2] + out[x]; |
| __asm__ volatile ("" : : : "memory"); |
| } |
| } |
| |
| int main(void) |
| { |
| const int lp[25] = { |
| 0, 2, 4, 6, 8, |
| 10, 12, 14, 16, |
| 18, 20, 22, 24, |
| 26, 28, 30, 32, |
| 34, 36, 38, 40, |
| 42, 44, 46, 48, |
| }; |
| int out[49] = {0}; |
| int out2[49] = {0}; |
| int s; |
| |
| check_vect (); |
| |
| foo (out + 2, lp + 1, 48); |
| foo_novec (out2 + 2, lp + 1, 48); |
| |
| for (s = 0; s < 49; s++) |
| if (out[s] != out2[s]) |
| abort (); |
| |
| return 0; |
| } |
| |