[Bug tree-optimization/29680] [4.3 Regression] Misscompilation of spec2006 gcc

["dnovillo at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #22 from dnovillo at redhat dot com  2006-11-09 15:08 -------
Subject: Re:  [4.3 Regression] Misscompilation
 of spec2006 gcc

Daniel Berlin wrote on 11/09/06 10:05:

> One thing i'm going to try later is to try to partition all the
> stores/load statements and figure out how many symbols it takes to
> represent the results exactly (IE one symbol for each set of
> statements that must interfere with each other, where each statement
> can be in multiple partitions).
> 
This is what I'm doing in memory SSA.  More details later this week 
after I'm done testing and such.  The difference is that partitioning is 
embedded in the actual SSA form and the partitioning heuristic can be 
changed independently of the renamer.  This will let us play with a 
slider-style throttling for precision/compile-time.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29680