contrib/gcc/stmt.c

2246 emit_case_bit_tests (tree index_type, tree index_expr, tree minval,
2277 				      n->low, minval), 1);
2279 				      n->high, minval), 1);
2291 			    fold_convert (index_type, minval));
2333   tree minval = NULL_TREE, maxval = NULL_TREE, range = NULL_TREE;
2416 	      minval = n->low;
2421 	      if (INT_CST_LT (n->low, minval))
2422 		minval = n->low;
2453       range = fold_build2 (MINUS_EXPR, index_type, maxval, minval);
2470 	  if (compare_tree_int (minval, 0) > 0
2473 	      minval = build_int_cst (index_type, 0);
2476 	  emit_case_bit_tests (index_type, index_expr, minval, range,
2548 	  if (! try_casesi (index_type, index_expr, minval, range,
2554                  minval to avoid a subtraction.  */
2556 		  && compare_tree_int (minval, 0) > 0
2557 		  && compare_tree_int (minval, 3) < 0)
2559 		  minval = build_int_cst (index_type, 0);
2563 	      ok = try_tablejump (index_type, index_expr, minval, range,
2581 					     n->low, minval), 1);
2584 					     n->high, minval), 1);