Delayed warning

[Thomas Koenig]

Hi!

Is there a way to mark a TREE statement (or a variable) so that
a warning is issued at a later stage if the statement has not been
removed in the meantime?

I am thinking, for example, of Fortran's -Warray-temporaries, which
issues a warning in the front end even though the whole temporary
array may be optimized away later.  We could, for example, mark
a call to malloc in such a way.

Regards

	Thomas