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Re: [tree-ssa] [PATCH]: Loop invariant code motion for trees


Hello,

> >>The fact that we want to perform sinking also is not a good reason not
> >>to accept the code. It's not like it wasn't written in a way that
> >>sinking isn't allowed, it's just not performed.
> >>
> >IIRC, there were two things I had problems with: (1) the hack to work
> >around some cfgloop limitations,
> 
> Which is necessary currently for *any* loop stuff.
> 
> I believe Zdenek either has the same hack in the tree-ssa-cfg branch, 
> or he made the code able to make forwarder blocks, but I can't remember 
> which and i'm not up to looking it up ATM.

the later; on tree-ssa-cfg there is no problem with making trivial cfg
manipulation functions like this one.

Zdenek


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