blob: b70aabd84a6e50cc7b3cd4fb0aebec44ce145a9d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 16
unsigned short in[N];
__attribute__ ((noinline)) unsigned int
foo (short scale){
int i;
unsigned short j;
unsigned int sum = 0;
unsigned short sum_j;
for (i = 0; i < N; i++) {
sum_j = 0;
for (j = 0; j < N; j++) {
sum_j += j;
}
sum += ((unsigned int) in[i] * (unsigned int) sum_j) >> scale;
}
return sum;
}
__attribute__ ((noinline)) unsigned short
bar (void)
{
unsigned short j;
unsigned short sum_j;
sum_j = 0;
for (j = 0; j < N; j++) {
sum_j += j;
}
return sum_j;
}
int main (void)
{
int i;
unsigned short j, sum_j;
unsigned int sum = 0;
unsigned int res;
check_vect ();
for (i=0; i<N; i++){
in[i] = i;
}
res = foo (2);
/* check results: */
for (i=0; i<N; i++)
{
sum_j = bar ();
sum += ((unsigned int) in[i] * (unsigned int) sum_j) >> 2;
}
if (res != sum)
abort ();
return 0;
}
/* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED." 1 "vect" { target vect_widen_mult_hi_to_si } } } */
/* { dg-final { cleanup-tree-dump "vect" } } */
|
