On Sun, Aug 18, 2019 at 12:14:40PM +0100, graham stott wrote: > Guy's Is there any signifcanes in not using NULL_RTX when assigning NULL value to a rtx other than consistany, becase there's many uses of plain NULL likewise for NULL_TREE for tree objects and other objects NULL_RTX has type "rtx". If assigning this to an rtx variable there it has the same effect as using plain NULL (or just 0). In some other cases the type can matter, but you are best off avoiding those cases anyway. Segher
