contrib/gcc/tree-ssa-ccp.c

241   switch (val.lattice_val)
336       val.lattice_val = VARYING;
341       val.lattice_val = CONSTANT;
352       val.lattice_val = CONSTANT;
370 	    val.lattice_val = UNDEFINED;
372 	    val.lattice_val = UNKNOWN_VAL;
374 	    val.lattice_val = VARYING;
382 	  val.lattice_val = is_gimple_reg (sym) ? UNDEFINED : UNKNOWN_VAL;
387 	  val.lattice_val = VARYING;
403   if (may_use_default_p && val->lattice_val == UNINITIALIZED)
429   gcc_assert (old_val->lattice_val <= new_val.lattice_val
430               || (old_val->lattice_val == new_val.lattice_val
434 		  && old_val->lattice_val == CONSTANT
435 		  && new_val.lattice_val == UNKNOWN_VAL));
437   if (old_val->lattice_val != new_val.lattice_val)
443 	           new_val.lattice_val != UNDEFINED ? "A" : "Not a");
451       return (new_val.lattice_val != UNDEFINED);
510       if (val->lattice_val == VARYING)
513       if (val->lattice_val == UNKNOWN_VAL)
520       if (val->lattice_val == CONSTANT)
562 		get_value (def, false)->lattice_val = VARYING;
592 		  && get_value (arg, false)->lattice_val == VARYING)
594 		  val->lattice_val = VARYING;
599 	  DONT_SIMULATE_AGAIN (phi) = (val->lattice_val == VARYING);
656   if (val1->lattice_val == UNDEFINED)
661   else if (val2->lattice_val == UNDEFINED)
667   else if (val1->lattice_val == UNKNOWN_VAL
668            || val2->lattice_val == UNKNOWN_VAL)
674       val1->lattice_val = UNKNOWN_VAL;
678   else if (val1->lattice_val == VARYING
679            || val2->lattice_val == VARYING)
682       val1->lattice_val = VARYING;
686   else if (val1->lattice_val == CONSTANT
687 	   && val2->lattice_val == CONSTANT
698       val1->lattice_val = CONSTANT;
705       val1->lattice_val = VARYING;
730   switch (old_val->lattice_val)
752       new_val.lattice_val = UNDEFINED;
784 	      arg_val.lattice_val = CONSTANT;
801 	  if (new_val.lattice_val == VARYING)
814       && old_val->lattice_val == UNKNOWN_VAL
815       && new_val.lattice_val == UNDEFINED)
821       if (new_val.lattice_val == VARYING)
886 	  if (val->lattice_val == CONSTANT)
914 	  if (val->lattice_val == CONSTANT)
921 	  if (val->lattice_val == CONSTANT)
1027 	      && value->lattice_val == CONSTANT
1154       val.lattice_val = CONSTANT;
1163 	val.lattice_val = likelyvalue;
1165 	val.lattice_val = VARYING;
1223 	&& val.lattice_val == CONSTANT)
1234 	    val.lattice_val = VARYING;
1239     if (val.lattice_val == CONSTANT
1250 	    val.lattice_val = VARYING;
1267 	  if (val.lattice_val == VARYING)
1283       if (val.lattice_val == UNDEFINED)
1284 	val.lattice_val = UNKNOWN_VAL;
1302 	  if (val.lattice_val == VARYING)