Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/c-c++-common/pr51628-10.c @ 145:1830386684a0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents
children
comparison
equal deleted inserted replaced
131:84e7813d76e9 145:1830386684a0
1 /* PR c/51628. */
2 /* { dg-do run { target int128 } } */
3 /* { dg-options "-O2" } */
4
5 struct pair_t
6 {
7 char c;
8 __int128_t i;
9 } __attribute__ ((packed));
10
11 typedef struct unaligned_int128_t_
12 {
13 __int128_t value;
14 } __attribute__((packed, may_alias)) unaligned_int128_t;
15
16 struct pair_t p = {0, 1};
17 unaligned_int128_t *addr = (unaligned_int128_t *) &p.i;
18
19 int
20 main()
21 {
22 addr->value = ~(__int128_t)0;
23 return (p.i != 1) ? 0 : 1;
24 }