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Commit d21968d1 authored by Evan Cheng's avatar Evan Cheng
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Change UsedPhysRegs from array bool to BitVector to save some space. Setting /... 

Change UsedPhysRegs from array bool to BitVector to save some space. Setting / getting its states now go through MachineFunction.

llvm-svn: 36451
parent 9b8d17db
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