Viewing file:  pr70646.c (1.08 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 -fno-unit-at-a-time" } */
typedef unsigned char u8;
typedef unsigned long long u64;
static inline __attribute__((always_inline)) u64 __swab64p(const u64 *p)
{
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));
}
static inline u64 wwn_to_u64(void *wwn)
{
return __swab64p(wwn);
}
void __attribute__((noinline,noclone)) broken(u64* shost)
{
u8 node_name[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
*shost = wwn_to_u64(node_name);
}
void __attribute__((noinline,noclone)) dummy(void)
{
__builtin_abort();
}
int main(int argc, char* argv[])
{
u64 v;
broken(&v);
if(v != (u64)-1)
__builtin_abort();
return 0;
}
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