[PATCH] D124097: llvm-reduce: Add reduction pass to remove regalloc hints

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: markus, reames, qcolombet, MatzeB, aeubanks.
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I'm a bit confused by what's actually stored for the allocation
hints. The MIR parser only handles the "simple" case where there's a
single hint. I don't really understand the assertion in
clearSimpleHint, or under what circumstances there are multiple hint
registers.


https://reviews.llvm.org/D124097

Files:
  llvm/test/tools/llvm-reduce/mir/preserve-reg-hints.mir
  llvm/test/tools/llvm-reduce/mir/reduce-register-hints.mir
  llvm/tools/llvm-reduce/CMakeLists.txt
  llvm/tools/llvm-reduce/DeltaManager.cpp
  llvm/tools/llvm-reduce/ReducerWorkItem.cpp
  llvm/tools/llvm-reduce/deltas/ReduceVirtualRegisters.cpp
  llvm/tools/llvm-reduce/deltas/ReduceVirtualRegisters.h

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