https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68870
--- Comment #6 from Jeffrey A. Law <law at redhat dot com> --- I'd say that changing genmatch (or any code) to know about the freelist is a horrid hack and just papering over the problem. I haven't put this case under a debugger, but presumably we've got a reference to a released SSA_NAME in the IL, right? Presumably in some code that isn't trivially proved unreachable?
