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Commit caaf8aae authored by Chris Lattner's avatar Chris Lattner
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Make MachineRegisterInfo::getVRegDef more efficient by aiming the keep the def... 

Make MachineRegisterInfo::getVRegDef more efficient by aiming the keep the def of the vreg at the start of the list, so the list doesn't need to be traversed.

llvm-svn: 45483
parent 0cb9dd7a
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