[Bug ipa/67811] [TM] ICE with try-block in transaction

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67811

--- Comment #2 from Richard Henderson <rth at gcc dot gnu.org> ---
copy_bbs fails to duplicate the eh regions included within
the requested region.  This no doubt causes all sorts of 
bad follow-on effects, heretofore unobserved.