#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; }