[PATCH] D39011: [SimplifyCFG] try harder to forward switch condition to phi (PR34471)
    Davide Italiano via Phabricator via llvm-commits 
    llvm-commits at lists.llvm.org
       
    Sun Oct 22 10:29:55 PDT 2017
    
    
  
davide added a comment.
yes, that was my concern too. I think pretty much every forward data flow analysis that propagates facts can make this xform useless. If anything, it's too fragile.
Repository:
  rL LLVM
https://reviews.llvm.org/D39011
    
    
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