1 /* { dg-require-effective-target vect_int } */
2
3 #include <stdarg.h>
4 #include "tree-vect.h"
5
6 #define N 16
7 signed char data_ch[N] =
8 { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 };
9 #define SUM 210
10
11 __attribute__ ((noinline)) int
foo()12 foo ()
13 {
14 int i;
15 signed short shortsum = 0;
16
17 /* widenning sum: sum chars into short.
18 The widening-summation pattern is currently not detected because of this
19 patch:
20
21 2005-12-26 Kazu Hirata <kazu@codesourcery.com>
22
23 PR tree-optimization/25125
24
25 but we still handle the reduction.
26 */
27
28 for (i = 0; i < N; i++)
29 {
30 shortsum += data_ch[i];
31 }
32
33 /* check results: */
34 if (shortsum != SUM)
35 abort ();
36
37 return 0;
38 }
39
40 int
main(void)41 main (void)
42 {
43 check_vect ();
44 return foo ();
45 }
46
47 /* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" { xfail *-*-* } } } */
48 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_sum_qi_to_hi } } } } */
49