Chris Lattner 95adf8f1da Do not convert massive blocks on phi nodes into select statements. Instead
only do these transformations if there are a small number of phi's.
This speeds up Ptrdist/ks from 2.35s to 2.19s on my mac pro.

llvm-svn: 31853
2006-11-18 19:19:36 +00:00
..
2006-11-02 20:25:50 +00:00
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