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6c456f0351
TargetRegisterInfo::getRegPressureLimit has a note that it is an old model that relies on manually entered classes. Using the newer model of register pressure sets seems more appropriate. We might eventually even switch to lib/CodeGen/RegisterPressure.cpp, but we should probably do incremental changes here. Using the newer model also makes it easier to take regmasks into account which is necessary to fix llvm.org/PR23143. I am currently also preparing a patch for that, but would like to do this switch independently. Review: http://reviews.llvm.org/D8986 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234880 91177308-0d34-0410-b5e6-96231b3b80d8