[Bug tree-optimization/102844] [9/10/11/12 Regression] DOM jump threading not copying block that became non-empty

[law at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102844

--- Comment #23 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Invalid is invalid.  Full stop.

I'll have to put it under a debugger, but I would have expected the nocopy
block to turn into a forwarder -- why do we end up putting statements in here?