1 /* { dg-require-effective-target vect_int } */
2 
3 #include "tree-vect.h"
4 
5 #define N 50
6 
7 #ifndef SIGNEDNESS
8 #define SIGNEDNESS unsigned
9 #endif
10 #ifndef BIAS
11 #define BIAS 0
12 #endif
13 
14 void __attribute__ ((noipa))
f(SIGNEDNESS char * restrict a,SIGNEDNESS char * restrict b,SIGNEDNESS char * restrict c)15 f (SIGNEDNESS char *restrict a, SIGNEDNESS char *restrict b,
16    SIGNEDNESS char *restrict c)
17 {
18   for (__INTPTR_TYPE__ i = 0; i < N; ++i)
19     {
20       int tmp1 = b[i] + BIAS;
21       int tmp2 = tmp1 + c[i];
22       a[i] = tmp2 >> 1;
23     }
24 }
25 
26 #define BASE1 ((SIGNEDNESS int) -1 < 0 ? -126 : 4)
27 #define BASE2 ((SIGNEDNESS int) -1 < 0 ? -101 : 26)
28 
29 int
main(void)30 main (void)
31 {
32   check_vect ();
33 
34   SIGNEDNESS char a[N], b[N], c[N];
35   for (int i = 0; i < N; ++i)
36     {
37       b[i] = BASE1 + i * 5;
38       c[i] = BASE2 + i * 4;
39       asm volatile ("" ::: "memory");
40     }
41   f (a, b, c);
42   for (int i = 0; i < N; ++i)
43     if (a[i] != ((BASE1 + BASE2 + i * 9 + BIAS) >> 1))
44       __builtin_abort ();
45   return 0;
46 }
47 
48 /* { dg-final { scan-tree-dump "vect_recog_average_pattern: detected" "vect" } } */
49 /* { dg-final { scan-tree-dump {\.AVG_FLOOR} "vect" { target vect_avg_qi } } } */
50 /* { dg-final { scan-tree-dump-not {vector\([^\n]*short} "vect" { target vect_avg_qi } } } */
51 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { target vect_avg_qi } } } */
52