예제 #1
0
파일: peep.c 프로젝트: jdelgadoalfonso/sdcc
static int
readint(const char *str)
{
  int ret;
  while(str[0] == '#' || str[0] == '(')
    str++;
  if(sscanf(str, "0x%x", &ret))
    return(ret);
  if(!sscanf(str, "%d", &ret))
    {
      wassertl (0, "readint() got non-integer argument.");
      ret = -1;
    }
  return(ret);
}
예제 #2
0
파일: ralloc.c 프로젝트: Trewdbal/cpctelera
/*-----------------------------------------------------------------*/
static symbol *
createStackSpil (symbol * sym)
{
  symbol *sloc = NULL;
  struct dbuf_s dbuf;

  D (D_ALLOC, ("createStackSpil: for sym %p %s\n", sym, sym->name));

  /* first go try and find a free one that is already
     existing on the stack */
  if (applyToSet (_G.stackSpil, isFreeSTM8, &sloc, sym))
    {
      /* found a free one : just update & return */
      sym->usl.spillLoc = sloc;
      sym->stackSpil = 1;
      sloc->isFree = 0;
      addSetHead (&sloc->usl.itmpStack, sym);
      D (D_ALLOC, ("createStackSpil: found existing\n"));
      return sym;
    }

  /* could not then have to create one , this is the hard part
     we need to allocate this on the stack : this is really a
     hack!! but cannot think of anything better at this time */

  dbuf_init (&dbuf, 128);
  dbuf_printf (&dbuf, "sloc%d", _G.slocNum++);
  sloc = newiTemp (dbuf_c_str (&dbuf));
  dbuf_destroy (&dbuf);

  /* set the type to the spilling symbol */
  sloc->type = copyLinkChain (sym->type);
  sloc->etype = getSpec (sloc->type);
  SPEC_SCLS (sloc->etype) = S_AUTO;
  SPEC_EXTR (sloc->etype) = 0;
  SPEC_STAT (sloc->etype) = 0;
  SPEC_VOLATILE (sloc->etype) = 0;

  allocLocal (sloc);

  sloc->isref = 1;              /* to prevent compiler warning */

  wassertl (currFunc, "Local variable used outside of function.");

  /* if it is on the stack then update the stack */
  if (IN_STACK (sloc->etype))
    {
      if (currFunc)
        currFunc->stack += getSize (sloc->type);
      _G.stackExtend += getSize (sloc->type);
    }
  else
    {
      _G.dataExtend += getSize (sloc->type);
    }

  /* add it to the stackSpil set */
  addSetHead (&_G.stackSpil, sloc);
  sym->usl.spillLoc = sloc;
  sym->stackSpil = 1;

  /* add it to the set of itempStack set
     of the spill location */
  addSetHead (&sloc->usl.itmpStack, sym);

  D (D_ALLOC, ("createStackSpil: created new\n"));
  return sym;
}