mirror of git://gcc.gnu.org/git/gcc.git
54 lines
948 B
C
54 lines
948 B
C
#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;
|
|
}
|
|
|