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Matthias Braun
da04ce1480
tracksSubRegLiveness only depends on the Subtarget and a cl::opt, there is not need to change it or save/parse it in a .mir file. Make the field const and move the initialization LiveIntervalAnalysis to the MachineRegisterInfo constructor. Also cleanup some code and fix some instances which better use MachineRegisterInfo::subRegLivenessEnabled() instead of TargetSubtargetInfo::enableSubRegLiveness(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279676 91177308-0d34-0410-b5e6-96231b3b80d8
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