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

[matz at gcc dot gnu.org]

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

--- Comment #10 from Michael Matz <matz at gcc dot gnu.org> 2012-03-06 12:06:08 UTC ---
(In reply to comment #9)
> (In reply to comment #8)
> > I still have an unfinished patch to convert SCCVN to
> > http://dl.acm.org/citation.cfm?id=512536
> > 
> > I'm happy to attach the patch if you like :)
> 
> I think you sent it to me once and Micha has implemented the predication
> bits ontop of it (well, sort of IIRC).

Yep, and I'm supposed to finish it up finally until the GCC cauldron :)