gcc/testsuite/gcc.dg/vect/section-anchors-vect-69.c

/* { dg-require-effective-target section_anchors } */
/* { dg-additional-options "--param vect-max-peeling-for-alignment=0" } */

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

#if VECTOR_BITS > 128
#define NINTS (VECTOR_BITS / 32)
#else
#define NINTS 4
#endif

#define N (NINTS * 8)

struct s{
  int m;
  int n[N][N][N];
};

struct s2{
  int m;
  int n[N-1][N-1][N-1];
};

struct test1{
  struct s a; /* array a.n is unaligned */
  int pad[NINTS - 2];
  struct s e; /* array e.n is aligned */
};

struct test2{
  struct s2 a;
  int b;
  int c;
  struct s2 e;
};


struct test1 tmp1[4];
struct test2 tmp2[4];

int main1 ()
{  
  int i,j;

  /* 1. unaligned */
  for (i = 0; i < N; i++)
    {
      tmp1[2].a.n[1][2][i] = 5;
    }

  /* check results:  */
  for (i = 0; i <N; i++)
    {
      if (tmp1[2].a.n[1][2][i] != 5)
        abort ();
    }

  /* 2. aligned */
  for (i = NINTS - 1; i < N - 1; i++)
    {
      tmp1[2].a.n[1][2][i] = 6;
    }

  /* check results:  */
  for (i = NINTS - 1; i < N - 1; i++)
    {
      if (tmp1[2].a.n[1][2][i] != 6)
        abort ();
    }

  /* 3. aligned */
  for (i = 0; i < N; i++)
    {
      for (j = 0; j < N; j++)
	{
          tmp1[2].e.n[1][i][j] = 8;
	}
    }

  /* check results:  */
  for (i = 0; i < N; i++)
    {
      for (j = 0; j < N; j++)
	{
          if (tmp1[2].e.n[1][i][j] != 8)
	    abort ();
	}
    }

  /* 4. unaligned */
  for (i = 0; i < N - NINTS; i++)
    {
      for (j = 0; j < N - NINTS; j++)
	{
          tmp2[2].e.n[1][i][j] = 8;
	}
    }

  /* check results:  */
  for (i = 0; i < N - NINTS; i++)
    {
      for (j = 0; j < N - NINTS; j++)
	{
          if (tmp2[2].e.n[1][i][j] != 8)
	    abort ();
	}
    }

  return 0;
}

int main (void)
{ 
  check_vect ();
  
  return main1 ();
} 

/* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect" { target vect_int } } } */
/* Alignment forced using versioning until the pass that increases alignment
  is extended to handle structs.  */
/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 4 "vect" { target {vect_int && {! vector_alignment_reachable} } } } } */