[Bug middle-end/54809] New: gengtype ignore mark_hook in struct nested in union

[bstarynk at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54809



             Bug #: 54809

           Summary: gengtype ignore mark_hook in struct nested in union

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: middle-end

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: bstar...@gcc.gnu.org





Created attachment 28353

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28353

small example to feed to gengtype



See http://gcc.gnu.org/ml/gcc-patches/2012-10/msg00257.html



The attached basilemarkh.h contains a GTY-ed struct mytest_st with a mark_hook.

That struct mytest_st is a member of some GTY-ed union myutest_un.



No call to the mark_hook is generated by gengtype (both on GCC 4.7 and on 4.8

trunk).



The attached patch to gengtype.c (for GCC 4.8 trunk svn rev 192031) solves the

issue