[Bug rtl-optimization/85393] [8 Regression] Miscompilation with hot/cold partitioning starting with r254832

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85393

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Actually, PRE does the right thing; the ~S () call is in bb3 and there is EH
edge from there to bb23, which has another EH predecessor, and PRE inserts the
initialization of pseudo 123 in that bb23.  Then comes bbpart, determines that
one of the EH edges is crossing and duplicates the bb (.gcc_except_table
contains expressions relative to the start of the partition in the current
function, so EH edges need to be non-crossing).  The pseudo 123 initialization
is not duplicated though.  So, likely bbpart bug then.