On Wed, Mar 27, 2019 at 8:48 AM Thomas König <t...@tkoenig.net> wrote: > > Hi Eric, > > There is an entire machinery in the middle-end and the back-ends to support > > this (look for trampolines/descriptors in the manual and the source code). > > This should essentially work out of the box for any language front-end. > Thanks for the pointer. The documentation I have seen seems to point out what > to do in a back end to implement this, less towards what to do in a front > end. And the source is big :-) > Could somebody maybe shed some additional light on what magic I would have to > invoke in the Fortran front end?
I think the only thing required is that the function nesting is appearant by means of DECL_CONTEXT of the inner function being the outer function. Of course accesses of outer function variables from the inner function have to use the same decl tree (not just a copy of the decl with the same name). Richard. > Regards, Thomas
