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Commit 69741727 authored by Chris Lattner's avatar Chris Lattner
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* The itf exposed by InstrScheduling is now a single function to create the right pass 

* InstructionScheduling is now a real pass
* InstrSched _uses_ LiveVar analysis, instead of creating it's own copy many times
  through a loop.  In this was LiveVarAnalysis is actually even SHARED by Register
  allocation.
* SchedPriorities is now passed the live var information in

llvm-svn: 1700
parent 494266ea
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