[PATCH] D130434: [MachineFunctinPass] Support -print-changed and -print-changed=quiet

[Fangrui Song via Phabricator via llvm-commits]

MaskRay created this revision.
MaskRay added reviewers: aeubanks, craig.topper, jamieschmeiser, paquette.
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-print-changed for new pass manager is handy beside -print-after-all.
Port it to MachineFunctionPass.

Note: lib/Passes/StandardInstrumentations.cpp implements a number of
misc features. If we want to use them for codegen, we may need to lift
some functionality to LLVMIR.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130434

Files:
  llvm/include/llvm/IR/PrintPasses.h
  llvm/lib/CodeGen/MachineFunctionPass.cpp
  llvm/lib/IR/PrintPasses.cpp
  llvm/lib/Passes/StandardInstrumentations.cpp
  llvm/test/Other/print-changed-machine.ll

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