Subversion Repositories openrisc_2011-10-31

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

#include <stdarg.h>

#include "tree-vect.h"

#define N 64

#define DOT 43680

signed short X[N] __attribute__ ((__aligned__(16)));

signed short Y[N] __attribute__ ((__aligned__(16)));

/* short->short->int dot product.  Should be vectorized on architectures

   supporting vectorized multiplication of two short args with short result,

   e.g "mulv4hi3" and widenning sum */

int

foo (int len)

{

  int i;

  int result = 0;

  short prod;

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

    {

      prod = X[i] * Y[i];

      result += prod;

    }

  return result;

}

int

main (void)

{

  int i, dot;

  check_vect ();

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

    {

      X[i] = i;

      Y[i] = 64 - i;

    }

  dot = foo (N);

  if (dot != DOT)

    abort ();

  return 0;

}

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_short_mult && vect_widen_sum_hi_to_si } } } } */

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_short_mult } } } } */

/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_widen_sum_hi_to_si } } } } */

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