[Bug tree-optimization/54200] copyrename generates wrong debuginfo

[rguenther at suse dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54200

--- Comment #5 from rguenther at suse dot de <rguenther at suse dot de> 2012-08-09 08:05:51 UTC ---
On Wed, 8 Aug 2012, pinskia at gcc dot gnu.org wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54200
> 
> --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-08-08 15:31:09 UTC ---
> The other thing which copyrename helps is register allocation as it allows out
> of ssa to coalesce some ssa names which could not do before.

Yes, though that's a matter of adjusting what coalescing can
coalesce (which is only limited to the sets it computes conflicts for)