contrib/gcc/tree-chrec.c

773 chrec_merge (tree chrec1,
776   if (chrec1 == chrec_dont_know
780   if (chrec1 == chrec_known
784   if (chrec1 == chrec_not_analyzed_yet)
787     return chrec1;
789   if (eq_evolutions_p (chrec1, chrec2))
790     return chrec1;
1358 		 tree chrec1)
1361       || chrec1 == NULL_TREE
1362       || TREE_CODE (chrec0) != TREE_CODE (chrec1))
1365   if (chrec0 == chrec1)
1371       return operand_equal_p (chrec0, chrec1, 0);
1374       return (CHREC_VARIABLE (chrec0) == CHREC_VARIABLE (chrec1)
1375 	      && eq_evolutions_p (CHREC_LEFT (chrec0), CHREC_LEFT (chrec1))
1376 	      && eq_evolutions_p (CHREC_RIGHT (chrec0), CHREC_RIGHT (chrec1)));