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comparison gcc/testsuite/gcc.dg/tree-ssa/pr80803.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 84e7813d76e9
comparison
equal deleted inserted replaced
68:561a7518be6b 111:04ced10e8804
1 /* { dg-do run } */
2 /* { dg-options "-O" } */
3
4 struct S0
5 {
6 unsigned a : 15;
7 int b;
8 int c;
9 };
10
11 struct S1
12 {
13 struct S0 s0;
14 int e;
15 };
16
17 struct Z
18 {
19 char c;
20 int z;
21 } __attribute__((packed));
22
23 union U
24 {
25 struct S1 s1;
26 struct Z z;
27 };
28
29
30 int __attribute__((noinline, noclone))
31 return_zero (void)
32 {
33 return 0;
34 }
35
36 volatile union U gu;
37 struct S0 gs;
38
39 int __attribute__((noinline, noclone))
40 check_outcome ()
41 {
42 if (gs.a != 6
43 || gs.b != 80000)
44 __builtin_abort ();
45 }
46
47 int
48 main (int argc, char *argv[])
49 {
50 union U u;
51 struct S1 m,n;
52 struct S0 l;
53
54 if (return_zero ())
55 u.z.z = 20000;
56 else
57 {
58 u.s1.s0.a = 6;
59 u.s1.s0.b = 80000;
60 u.s1.e = 2;
61
62 n = u.s1;
63 m = n;
64 m.s0.c = 0;
65 l = m.s0;
66 gs = l;
67 }
68
69 gu = u;
70 check_outcome ();
71 return 0;
72 }