Chris Lattner 0289929c62 Don't crash on: X = phi (X, X).
This fixes PR584 and Transforms/SimplifyCFG/2005-06-16-PHICrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22232 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-17 01:45:53 +00:00
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2005-04-21 22:36:52 +00:00
2005-05-09 01:09:39 +00:00
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