1 /* Disabling epilogues until we find a better way to deal with scans. */
2 /* { dg-additional-options "--param vect-epilogues-nomask=0" } */
3 /* { dg-require-effective-target vect_int } */
4
5 #include <stdarg.h>
6 #include "tree-vect.h"
7
8 #define N 16
9
10 unsigned int ub[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
11 unsigned int uc[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
12
13 /* Vectorization of reduction using loop-aware SLP (with unrolling). */
14
15 __attribute__ ((noinline))
main1(int n,int res0,int res1,int res2,int res3)16 int main1 (int n, int res0, int res1, int res2, int res3)
17 {
18 int i;
19 unsigned int udiff0 = 5, udiff1 = 10;
20
21 for (i = 0; i < n; i++) {
22 udiff1 += (ub[2*i + 1] - uc[2*i + 1]);
23 udiff0 += (ub[2*i] - uc[2*i]);
24 }
25
26 /* Check results: */
27 if (udiff0 != res0
28 || udiff1 != res1)
29 abort ();
30
31 return 0;
32 }
33
main(void)34 int main (void)
35 {
36 check_vect ();
37
38 main1 (N/2, 117, 138, 84, 102);
39 return 0;
40 }
41
42 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_int_add } } } */
43 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail vect_no_int_add } } } */
44
45