[Bug middle-end/77484] [6/7 Regression] Static branch predictor causes ~6-8% regression of SPEC2000 GAP

hubicka at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Dec 1 13:51:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77484

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED
                 CC|                            |hubicka at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |hubicka at gcc dot gnu.org

--- Comment #4 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Wilco,
do you have a specific function where this happens?

Martin,
do you know what is hitrate of call predictor here?  I am not sure how much we
can do about this (it is all heuristics after all).


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