[Bug rtl-optimization/57812] Wasted work in computed_jump_p()

[pchang9 at cs dot wisc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57812

--- Comment #2 from Po-Chun Chang <pchang9 at cs dot wisc.edu> ---
Created attachment 30443
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30443&action=edit
Suggested patch