https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69435
--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> --- Created attachment 37440 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37440&action=edit Candidate fix This patch appears to fix it; tested successfully with "make check-jit" and "make check-jit -j64" on a 64-core box.
