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Commit 6f58350d authored by Chris Lattner's avatar Chris Lattner
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Now that hasConstantValue is more careful w.r.t. returning values that only 

dominate the PHI node, this code can go away.  This also makes passes more
aggressive, e.g. implementing Transforms/CondProp/phisimplify2.ll

llvm-svn: 22670
parent bcd8d2c6
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