1 /* { dg-do run } */
2 /* { dg-options "-O2 -fno-unit-at-a-time" } */
3
4 typedef unsigned char u8;
5 typedef unsigned long long u64;
6
__swab64p(const u64 * p)7 static inline __attribute__((always_inline)) u64 __swab64p(const u64 *p)
8 {
9 return (__builtin_constant_p((u64)(*p)) ? ((u64)( (((u64)(*p) & (u64)0x00000000000000ffULL) << 56) | (((u64)(*p) & (u64)0x000000000000ff00ULL) << 40) | (((u64)(*p) & (u64)0x0000000000ff0000ULL) << 24) | (((u64)(*p) & (u64)0x00000000ff000000ULL) << 8) | (((u64)(*p) & (u64)0x000000ff00000000ULL) >> 8) | (((u64)(*p) & (u64)0x0000ff0000000000ULL) >> 24) | (((u64)(*p) & (u64)0x00ff000000000000ULL) >> 40) | (((u64)(*p) & (u64)0xff00000000000000ULL) >> 56))) : __builtin_bswap64(*p));
10 }
11
wwn_to_u64(void * wwn)12 static inline u64 wwn_to_u64(void *wwn)
13 {
14 return __swab64p(wwn);
15 }
16
broken(u64 * shost)17 void __attribute__((noinline,noclone)) broken(u64* shost)
18 {
19 u8 node_name[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
20 *shost = wwn_to_u64(node_name);
21 }
22
dummy(void)23 void __attribute__((noinline,noclone)) dummy(void)
24 {
25 __builtin_abort();
26 }
27
main(int argc,char * argv[])28 int main(int argc, char* argv[])
29 {
30 u64 v;
31
32 broken(&v);
33
34 if(v != (u64)-1)
35 __builtin_abort();
36
37 return 0;
38 }
39