disallow Muxb and Cmp(mode_b, mode_b).

We couldn't generate sensible code for them anyway.

ir/ir/irverify.c

@@ -728,8 +728,8 @@ static int verify_node_Not(const ir_node *n)
 static int verify_node_Cmp(const ir_node *n)
 {
 	bool fine = check_mode(n, mode_b);
-	fine &= check_input_func(n, n_Cmp_left, "left", mode_is_datab, "datab");
-	fine &= check_input_func(n, n_Cmp_right, "right", mode_is_datab, "datab");
+	fine &= check_input_func(n, n_Cmp_left, "left", mode_is_data, "data");
+	fine &= check_input_func(n, n_Cmp_right, "right", mode_is_data, "data");
 	ir_mode *model = get_irn_mode(get_Cmp_left(n));
 	ir_mode *moder = get_irn_mode(get_Cmp_right(n));
 	if (model != moder) {
@@ -870,7 +870,7 @@ static int verify_node_Confirm(const ir_node *n)
 
 static int verify_node_Mux(const ir_node *n)
 {
-	bool fine = check_mode_func(n, mode_is_datab, "data or mode_b");
+	bool fine = check_mode_func(n, mode_is_data, "data or mode_b");
 	fine &= check_input_mode(n, n_Mux_sel, "sel", mode_b);
 	fine &= check_mode_same_input(n, n_Mux_true, "true");
 	fine &= check_mode_same_input(n, n_Mux_false, "false");

ir/lower/lower_mode_b.c

@@ -161,21 +161,6 @@ static ir_node *lower_node(ir_node *node)
 		break;
 	}
 
-	case iro_Mux: {
-		ir_node *cond        = get_Mux_sel(node);
-		ir_node *low_cond    = lower_node(cond);
-		ir_node *v_true      = get_Mux_true(node);
-		ir_node *low_v_true  = lower_node(v_true);
-		ir_node *v_false     = get_Mux_false(node);
-		ir_node *low_v_false = lower_node(v_false);
-
-		ir_node *and0     = new_rd_And(dbgi, block, low_cond, low_v_true, mode);
-		ir_node *not_cond = create_not(dbgi, low_cond);
-		ir_node *and1     = new_rd_And(dbgi, block, not_cond, low_v_false, mode);
-		res = new_rd_Or(dbgi, block, and0, and1, mode);
-		break;
-	}
-
 	case iro_Cmp:
 		res = create_cond_set(node, mode);
 		break;