1 /* { dg-do run } */
2 /* { dg-require-effective-target store_merge } */
3 /* { dg-options "-O2 -fdump-tree-store-merging" } */
4
5 struct S { unsigned char a, b; unsigned short c; unsigned char d, e, f, g; unsigned long long h; };
6
7 __attribute__((noipa)) void
f1(struct S * __restrict p,struct S * __restrict q)8 f1 (struct S *__restrict p, struct S *__restrict q)
9 {
10 p->a = ~q->a;
11 p->b = q->b;
12 p->c = ~q->c;
13 p->d = ~q->d;
14 p->e = q->e;
15 p->f = ~q->f;
16 p->g = ~q->g;
17 }
18
19 __attribute__((noipa)) void
f2(struct S * __restrict p,struct S * __restrict q)20 f2 (struct S *__restrict p, struct S *__restrict q)
21 {
22 p->a = ~(unsigned char) (p->a & q->a);
23 p->b = ((unsigned char) ~p->b) & q->b;
24 p->c = p->c & (unsigned short) ~q->c;
25 p->d = p->d & q->d;
26 p->e = p->e & (unsigned char) ~q->e;
27 p->f = p->f & (unsigned char) ~q->f;
28 p->g = ~(unsigned char) (p->g & q->g);
29 }
30
31 struct S s = { 20, 21, 22, 23, 24, 25, 26, 27 };
32 struct S u = { 28, 29, 30, 31, 32, 33, 34, 35 };
33 struct S v = { 36, 37, 38, 39, 40, 41, 42, 43 };
34
35 int
main()36 main ()
37 {
38 asm volatile ("" : : : "memory");
39 f1 (&s, &u);
40 asm volatile ("" : : : "memory");
41 if (s.a != (unsigned char) ~28 || s.b != 29
42 || s.c != (unsigned short) ~30 || s.d != (unsigned char) ~31
43 || s.e != 32 || s.f != (unsigned char) ~33 || s.g != (unsigned char) ~34
44 || s.h != 27)
45 __builtin_abort ();
46 f2 (&u, &v);
47 asm volatile ("" : : : "memory");
48 if (u.a != (unsigned char) ~(28 & 36) || u.b != (((unsigned char) ~29) & 37)
49 || u.c != (30 & (unsigned short) ~38) || u.d != (31 & 39)
50 || u.e != (32 & (unsigned char) ~40) || u.f != (33 & (unsigned char) ~41)
51 || u.g != (unsigned char) ~(34 & 42) || u.h != 35)
52 __builtin_abort ();
53 return 0;
54 }
55
56 /* { dg-final { scan-tree-dump-times "Merging successful" 2 "store-merging" } } */
57