|
111
|
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
|
|
|
8 float in[N+M];
|
|
|
9 float coeff[M];
|
|
|
10 float out[N];
|
|
|
11 float fir_out[N];
|
|
|
12
|
|
|
13 /* Should be vectorized. Fixed misaligment in the inner-loop. */
|
|
|
14 __attribute__ ((noinline))
|
|
|
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 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))
|
|
|
37 void 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
|
|
|
51 int 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 } } } } } */
|
