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

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue Sep 6 07:58:00 GMT 2016


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

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |aarch64

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
IIRC the measurements have been run on x86 only, they are done "statically",
that is, verify the prediction against real outcomes as computed by the edge
profile
which is target independent.


More information about the Gcc-bugs mailing list