1 /* { dg-require-effective-target vect_condition } */
2
3 #include "tree-vect.h"
4
5 extern void abort (void) __attribute__ ((noreturn));
6
7 #define N 37
8
9 /* Re-use the result of the condition inside the loop. Will fail to
10 vectorize. */
11
12 unsigned int
condition_reduction(unsigned int * a,unsigned int min_v,unsigned int * b)13 condition_reduction (unsigned int *a, unsigned int min_v, unsigned int *b)
14 {
15 unsigned int last = N + 65;
16
17 for (unsigned int i = 0; i < N; i++)
18 {
19 if (b[i] < min_v)
20 last = i;
21 a[i] = last;
22 }
23 return last;
24 }
25
26 int
main(void)27 main (void)
28 {
29 unsigned int a[N] = {
30 31, 32, 33, 34, 35, 36, 37,
31 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
32 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
33 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
34 };
35 unsigned int b[N] = {
36 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
37 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
38 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
39 31, 32, 33, 34, 35, 36, 37
40 };
41
42 check_vect ();
43
44 unsigned int ret = condition_reduction (a, 16, b);
45
46 if (ret != 29)
47 abort ();
48
49 return 0;
50 }
51
52 /* { dg-final { scan-tree-dump-not "LOOP VECTORIZED" "vect" } } */
53