Viewing file:  vect-76-big-array.c (1.34 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 124
#define OFF 4
/* Check handling of accesses for which the "initial condition" -
the expression that represents the first location accessed - is
more involved than just an ssa_name. */
int ib[N+OFF] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0, 1, 3, 5, 7, 11, 13, 17};
int ic[N+OFF] = {0, 1, 3, 5, 7, 11, 13, 17};
__attribute__ ((noinline))
int main1 (int *pib)
{
int i;
int ia[N+OFF];
for (i = OFF; i < N+OFF; i++)
{
ib[i] = ib[i%8]*(i/8);
ic[i] = ic[i%8]*(i/8);
asm volatile ("" ::: "memory");
}
for (i = OFF; i < N; i++)
{
ia[i] = pib[i - OFF];
}
/* check results: */
for (i = OFF; i < N; i++)
{
if (ia[i] != pib[i - OFF])
abort ();
}
for (i = 0; i < N; i++)
{
ia[i] = pib[i - OFF];
}
/* check results: */
for (i = 0; i < N; i++)
{
if (ia[i] != pib[i - OFF])
abort ();
}
for (i = OFF; i < N; i++)
{
ia[i] = ic[i - OFF];
}
/* check results: */
for (i = OFF; i < N; i++)
{
if (ia[i] != ic[i - OFF])
abort ();
}
return 0;
}
int main (void)
{
check_vect ();
main1 (&ib[OFF]);
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" } } */
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