[Bug c/79244] [7 Regression] ice in replace_uses_by, at tree-cfg.c:1866

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79244

--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
Goes wrong in revision 241727, dated 20161101.