gcc/testsuite/gcc.dg/vect/vect-75-big-array.c

/* Disabling epilogues until we find a better way to deal with scans.  */
/* { dg-additional-options "--param vect-epilogues-nomask=0" } */
/* { dg-require-effective-target vect_int } */

#include <stdarg.h>
#include "tree-vect.h"

#define N 120
#define OFF 8

/* 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};

__attribute__ ((noinline))
int main1 (int *ib)
{
  int i;
  int ia[N];

  for (i = OFF; i < N+OFF; i++)
    {
      ib[i] = ib[i%OFF]*(i/OFF);
      asm volatile ("" ::: "memory");
    }
  for (i = 0; i < N; i++)
    {
      ia[i] = ib[i+OFF];
    }


  /* check results:  */
  for (i = 0; i < N; i++)
    {
     if (ia[i] != ib[i+OFF])
        abort ();
    }

  return 0;
}

int main (void)
{
  check_vect ();

  main1 (ib);
  return 0;
}


/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
/*  { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 1 "vect" { target { vect_no_align && { ! vect_hw_misalign } } } } } */
/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { target { ! vect_align_stack_vars } xfail { ! vect_unaligned_possible } } } } */
/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { target vect_align_stack_vars xfail { ! vect_unaligned_possible } } } } */