Subversion Repositories openrisc_2011-10-31

/* { dg-require-effective-target vect_float } */

#include <stdarg.h>

#include "tree-vect.h"

#define N 256

__attribute__ ((noinline))

void bar (float *pa, float *pb, float *pc)

{

  int i;

  /* check results:  */

  for (i = 0; i < N; i++)

    {

      if (pa[i] != (pb[i] * pc[i]))

        abort ();

    }

  return;

}

__attribute__ ((noinline)) int

main1 (float *pa, float *pb, float *pc)

{

  int i;

  float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));

  float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));

  for (i = 0; i < N; i++)

    {

      b[i] = pb[i];

      c[i] = pc[i];

    }

  /* Vectorizable: pa may not alias pb and/or pc, even though their

     addresses escape.  &pa would need to escape to point to escaped memory.  */

  for (i = 0; i < N; i++)

    {

      pa[i] = b[i] * c[i];

    }

  bar (pa,b,c);

  return 0;

}

__attribute__ ((noinline)) int

main2 (float *pa, float *pb, float *pc)

{

  int i;

  float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));

  float c[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));

  for (i = 0; i < N; i++)

    {

      b[i] = pb[i];

      c[i] = pc[i];

    }

  /* Vectorizable: pb and pc addresses do not escape.  */

  for (i = 0; i < N; i++)

    {

      pa[i] = b[i] * c[i];

    }

  /* check results:  */

  for (i = 0; i < N; i++)

    {

      if (pa[i] != (b[i] * c[i]))

        abort ();

    }

  return 0;

}

int main (void)

{

  int i;

  float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));

  float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};

  float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};

  check_vect ();

  main1 (a,b,c);

  main2 (a,b,c);

  return 0;

}

/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 2 "vect" } } */

/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 6 "vect" { target vect_no_align } } } */

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