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 128
8 float in[N+M];
9 float coeff[M];
10 float out[N];
11 float fir_out[N];
12 
13 /* Vectorized.  Fixed misaligment in the inner-loop.  */
14 __attribute__ ((noinline))
foo()15 void 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     j = k;
27 
28     do {
29       diff += in[j+i]*coeff[j];
30       j+=4;
31     } while (j < M);
32 
33     out[i] += diff;
34   }
35  }
36 
37 }
38 
39 /* Vectorized.  Changing misalignment in the inner-loop.  */
40 __attribute__ ((noinline))
fir()41 void fir (){
42   int i,j,k;
43   float diff;
44 
45   for (i = 0; i < N; i++) {
46     diff = 0;
47     for (j = 0; j < M; j++) {
48       diff += in[j+i]*coeff[j];
49     }
50     fir_out[i] = diff;
51   }
52 }
53 
54 
main(void)55 int main (void)
56 {
57   check_vect ();
58   int i, j;
59   float diff;
60 
61   for (i = 0; i < M; i++)
62     coeff[i] = i;
63   for (i = 0; i < N+M; i++)
64     in[i] = i;
65 
66   foo ();
67   fir ();
68 
69   for (i = 0; i < N; i++) {
70     if (out[i] != fir_out[i])
71       abort ();
72   }
73 
74   return 0;
75 }
76 
77 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 2 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
78