Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

     http://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------

This simple file makes Emacs loops and freeze when trying to export it.

#+MACRO: test {{{test}}}
{{{test}}}

I can concieve that no simple solution could be find.
In pandoc a recursion limit will be implemented (see
https://github.com/jgm/pandoc/issues/3401).

At least, maybe a warning about such a behavior should be added to the manual.

Emacs  : GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.7)
 of 2017-01-22 on trouble, modified by Debian
Package: Org mode version 9.0.3 (9.0.3-dist @ /usr/share/emacs24/site-lisp/org-mode/)

-- 
Bruno BEAUFILS