Subversion Repositories openrisc_2011-10-31

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

#include <stdarg.h>

#include "tree-vect.h"

#define N 40

#define M 128

float in[N+M];

float coeff[M];

float out[N];

/* Outer-loop vectorization.  */

__attribute__ ((noinline)) void

foo (){

  int i,j;

  float diff;

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

    diff = 0;

    for (j = 0; j < M; j+=4) {

      diff += in[j+i]*coeff[j];

    }

    out[i]=diff;

  }

}

int main (void)

{

  check_vect ();

  int i, j;

  float diff;

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

    coeff[i] = i;

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

    in[i] = i;

  foo ();

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

    diff = 0;

    for (j = 0; j < M; j+=4) {

      diff += in[j+i]*coeff[j];

    }

    if (out[i] != diff)

      abort ();

  }

  return 0;

}

/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" } } */

/* { dg-final { scan-tree-dump-times "zero step in outer loop." 1 "vect" } } */

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