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Commit cf7f9411 authored by Owen Anderson's avatar Owen Anderson
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Add a prototype of a new peephole optimizing pass that uses LazyValue info to... 

Add a prototype of a new peephole optimizing pass that uses LazyValue info to simplify PHIs and select's.
This pass addresses the missed optimizations from PR2581 and PR4420.

llvm-svn: 112325
parent e71d553c
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