[LLVMdev] "Splitting" live values

[Carlo Alberto Ferraris]

Suppose I have in my CFG (among others) two basic blocks A and B, with 
an edge from A to B. I need to do the following:

    * get the set S of live values across that edge
    * map each of them to another value (S->S')
    * replace - in B and its successors - all the uses of values in S
      with the mapped values (S')

Does LLVM provide an easy way to do this (because I can't seem to be 
able to find it)? If not, do you have any suggestions about how to do it?

-- 
Carlo Alberto Ferraris <cafxx at strayorange.com 
<mailto:cafxx at strayorange.com>>
website/blog <http://cafxx.strayorange.com> - +39 333 7643 235
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