[tree-ssa] Maintaining/representing def-use/use-def information

[Zdenek Dvorak]

Hello,

> > on contrary, I see this as a major architectural decision -- identifying the
> > variable with the statement that defines it is a very interesting idea.
> > 
> Sorry?  SSA_NAME_DEF_STMT() tells you exactly that.  Or are you asking
> something else?

no, I am just speaking about the fact that LLVM in fact does not have
variables at all.  Not really new idea, but definitely interesting and
seems to fit nicely with the ssa concept.

Zdenek