[Bug c++/83372] ICE in GC within gt_ggc_mx building Mir

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83372

--- Comment #16 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #15)
> Alan: are you able to test Nathan's bug to see if it fixes the issue for you?
                                      ^^^
                                      patch, I meant to say