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Re: [tcb] Incremental SSA updates


Hello,

> >you may also want to check ssaupdate-branch, where I have done something
> >very similar.
> >
> Thanks.  I'll take a look.
> 
> One of the things that can be optimized is the insertion of PHI nodes. 
> They are not strictly necessary when you do this type of replacement. 
> Callers could have a choice.  In the case of VRP, PHI nodes may provide 
> more information at merge points, but I need to evaluate this.
> 
> Also, did you experiment whether a scheme like this can be used instead 
> of ssa-into-ssa?

the scheme in ssaupdate-branch replaces ssa-into-ssa.
It also allows you to specify whether you need to insert phi nodes.

Zdenek


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