1/* { dg-do compile } */ 2/* { dg-options "-O2 -Wstrict-overflow=3" } */ 3#if (__SIZEOF_LONG_LONG__ == __SIZEOF_POINTER__) 4typedef unsigned long long ptrcast; 5#elif (__SIZEOF_LONG__ == __SIZEOF_POINTER__) 6typedef unsigned long ptrcast; 7#elif (__SIZEOF_INT__ == __SIZEOF_POINTER__) 8typedef unsigned int ptrcast; 9#else 10#error Add target support here 11#endif 12 13volatile unsigned long * 14sat_add(volatile unsigned long *ptr, unsigned long i, volatile unsigned long *end) 15{ 16 if ((ptrcast)ptr + i * sizeof(*ptr) > (ptrcast)ptr) /* { dg-bogus "pointer wraparound" } */ 17 return ptr + i; 18 else 19 return end; 20} 21 22 23