[Bug middle-end/87869] Unrolled loop leads to excessive code bloat with -Os on ARC EM.
pinskia at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Nov 2 22:53:00 GMT 2018
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87869
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target| |arc*
Component|c |middle-end
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
So this is a cost model issue. I suspect the tree level cost model does not
take into account some things. One is const formation.
More information about the Gcc-bugs
mailing list