contrib/gcc/tree-ssa-ccp.c

43 	VARYING		->  V_i cannot take a constant value, or if it
81 	that instead of consider it VARYING (a_9 and a_10 have
222   VARYING
249     case VARYING:
319       nodes are considered VARYING.
336       val.lattice_val = VARYING;
374 	    val.lattice_val = VARYING;
387 	  val.lattice_val = VARYING;
466    Else return VARYING.  */
481     return VARYING;
487     return VARYING;
493     return VARYING;
500     return VARYING;
510       if (val->lattice_val == VARYING)
511 	return VARYING;
553 	  if (likely_value (stmt) == VARYING)
560 		 all its outputs VARYING.  */
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);
623 		any  M VARYING     = VARYING
625 		Ci   M Cj	   = VARYING	if (i != j)
678   else if (val1->lattice_val == VARYING
679            || val2->lattice_val == VARYING)
681       /* any M VARYING = VARYING.  */
682       val1->lattice_val = VARYING;
694 	 Ci M Cj = VARYING	if (i != j)
704       /* Any other combination is VARYING.  */
705       val1->lattice_val = VARYING;
732     case VARYING:
801 	  if (new_val.lattice_val == VARYING)
821       if (new_val.lattice_val == VARYING)
1135   /* If the statement is likely to have a VARYING result, then do not
1137   if (likelyvalue == VARYING)
1161 	 should be UNDEFINED.  Otherwise, the statement is VARYING.  */
1165 	val.lattice_val = VARYING;
1234 	    val.lattice_val = VARYING;
1250 	    val.lattice_val = VARYING;
1267 	  if (val.lattice_val == VARYING)
1302 	  if (val.lattice_val == VARYING)
1377     fprintf (dump_file, "No interesting values produced.  Marked VARYING.\n");
1381      Mark them VARYING.  */
1384       prop_value_t v = { VARYING, NULL_TREE, NULL_TREE };