Subversion Repositories openrisc_2011-10-31

/* { dg-do compile } */

/* { dg-options "-O2 -Wstrict-overflow=3" } */

#if (__SIZEOF_LONG_LONG__ == __SIZEOF_POINTER__)

typedef unsigned long long ptrcast;

#elif (__SIZEOF_LONG__ == __SIZEOF_POINTER__)

typedef unsigned long ptrcast;

#elif (__SIZEOF_INT__ == __SIZEOF_POINTER__)

typedef unsigned int ptrcast;

#else

#error Add target support here

#endif

volatile unsigned long *

sat_add(volatile unsigned long *ptr, unsigned long i, volatile unsigned long *end)

{

  if ((ptrcast)ptr + i * sizeof(*ptr) > (ptrcast)ptr) /* { dg-bogus "pointer wraparound" } */

    return ptr + i;

  else

    return end;

}