1 /* { dg-require-effective-target vect_int } */
2 /* { dg-require-effective-target vect_shift } */
3 /* { dg-require-effective-target vect_pack_trunc } */
4 /* { dg-require-effective-target vect_unpack } */
5
6 #include "tree-vect.h"
7
8 #define N 111
9
10 /* This shouldn't be treated as an over-widening operation: it's better
11 to reuse the extensions of di and ei for di + ei than to add them
12 as shorts and introduce a third extension. */
13
14 void __attribute__ ((noipa))
15 f (unsigned int *restrict a, unsigned int *restrict b,
16 unsigned int *restrict c, unsigned char *restrict d,
17 unsigned char *restrict e)
18 {
19 for (__INTPTR_TYPE__ i = 0; i < N; ++i)
20 {
21 a[i] = d[i];
22 b[i] = e[i];
23 c[i] = d[i] + e[i];
24 }
25 }
26
27 int
28 main (void)
29 {
30 check_vect ();
31
32 unsigned int a[N], b[N], c[N];
33 unsigned char d[N], e[N];
34 for (int i = 0; i < N; ++i)
35 {
36 d[i] = i * 2 + 3;
37 e[i] = i + 100;
38 asm volatile ("" ::: "memory");
39 }
40 f (a, b, c, d, e);
41 for (int i = 0; i < N; ++i)
42 if (a[i] != i * 2 + 3
43 || b[i] != i + 100
44 || c[i] != i * 3 + 103)
45 __builtin_abort ();
46
47 return 0;
48 }
49
50 /* { dg-final { scan-tree-dump-not {vect_recog_over_widening_pattern: detected} "vect" } } */
51 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" } } */