[Bug rtl-optimization/50557] [4.7 Regression] Register pressure increase after reassociation (x86, 32 bits)

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50557

--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-07 04:01:36 UTC ---
(In reply to comment #9)
> There is still the old loop re-rolling pass from the rtlopt-branch. I am not
> sure if there were any good reasons for not including it in GCC.

Maybe re-rolling could be pushed up to the tree level where it might catch a
few more things.