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/* { dg-do run } */
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;
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;
}
/* { dg-final { cleanup-tree-dump "vect" } } */
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