[Bug tree-optimization/32120] missed PRE/FRE of a*2+4 and (a+2)*2

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32120

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-04 
00:45:50 UTC ---
I might even have a patch for my tree combine branch later today.  I still have
to connect up ssa_combine to SCCVN but that should not be hard.