[Bug tree-optimization/65207] [5 regression] performance: tree level loop optimization does not peel SpecCPU href loop

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65207

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-02-25
                 CC|                            |hubicka at gcc dot gnu.org
   Target Milestone|---                         |5.0
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I believe there is a duplicate bug complaining about the same heuristic.  I can
confirm the heuristic is new.

Why doesn't the call overhead cancel all gains of the peeling?