1/* { dg-require-effective-target vect_float } */
2
3#include <stdarg.h>
4#include "tree-vect.h"
5
6#define N 80
7#define M 256
8float in[N+M];
9float coeff[M];
10float out[N];
11float fir_out[N];
12
13/* Should be vectorized.  Fixed misaligment in the inner-loop.  */
14__attribute__ ((noinline))
15void foo (){
16 int i,j,k;
17 float diff;
18
19 for (i = 0; i < N; i++) {
20  out[i] = 0;
21 }
22
23 for (k = 0; k < 4; k++) {
24  for (i = 0; i < N; i++) {
25    diff = 0;
26    for (j = k; j < M; j+=4) {
27      diff += in[j+i]*coeff[j];
28    }
29    out[i] += diff;
30  }
31 }
32
33}
34
35/* Vectorized.  Changing misalignment in the inner-loop.  */
36__attribute__ ((noinline))
37void fir (){
38  int i,j,k;
39  float diff;
40
41  for (i = 0; i < N; i++) {
42    diff = 0;
43    for (j = 0; j < M; j++) {
44      diff += in[j+i]*coeff[j];
45    }
46    fir_out[i] = diff;
47  }
48}
49
50
51int main (void)
52{
53  check_vect ();
54  int i, j;
55  float diff;
56
57  for (i = 0; i < M; i++)
58    coeff[i] = i;
59  for (i = 0; i < N+M; i++)
60    in[i] = i;
61
62  foo ();
63  fir ();
64
65  for (i = 0; i < N; i++) {
66    if (out[i] != fir_out[i])
67      abort ();
68  }
69
70  return 0;
71}
72
73/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 2 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
74/* { dg-final { cleanup-tree-dump "vect" } } */
75