gcc/gcc/tree-object-size.c

73 static const unsigned HOST_WIDE_INT unknown[4] = { -1, -1, 0, 0 };
119    if unknown.  */
186    If unknown, return unknown[object_size_type].  */
220 	    sz = unknown[object_size_type];
222       if (sz != unknown[object_size_type])
230 	    sz = unknown[object_size_type];
233       if (sz != unknown[object_size_type] && sz < offset_limit)
249     return unknown[object_size_type];
364 	return unknown[object_size_type];
394     return unknown[object_size_type];
401   return unknown[object_size_type];
407    argument from __builtin_object_size.  If unknown, return
408    unknown[object_size_type].  */
421     return unknown[object_size_type];
453     return unknown[object_size_type];
465   return unknown[object_size_type];
624 		    != unknown[object_size_type])
644   return unknown[object_size_type];
657 	      != unknown[object_size_type]);
670     bytes = unknown[object_size_type];
697 	      != unknown[object_size_type]);
715 /* Compute object_sizes for PTR, defined to an unknown value.  */
725 	      != unknown[object_size_type]);
728   bytes = unknown[object_size_type];
754   if (object_sizes[object_size_type][varno] == unknown[object_size_type])
758       object_sizes[object_size_type][varno] = unknown[object_size_type];
766   if (orig_bytes != unknown[object_size_type])
817   if (object_sizes[object_size_type][varno] == unknown[object_size_type])
826 	bytes = unknown[object_size_type];
835 	  if (bytes == unknown[object_size_type])
838 	    bytes = unknown[object_size_type];
846     bytes = unknown[object_size_type];
876   if (object_sizes[object_size_type][varno] == unknown[object_size_type])
905    subtraction, object size is unknown[object_size_type].
907    unknown[object_size_type] for all objects bigger than half of the address
1002       object_sizes[object_size_type][varno] = unknown[object_size_type];
1011 	object_sizes[object_size_type][varno] = unknown[object_size_type];
1023 		== unknown[object_size_type])
1039       || object_sizes[object_size_type][varno] == unknown[object_size_type])