[PATCH] D92589: Introduce new option -print-changed-only and associated change printer.

[Jamie Schmeiser via Phabricator via llvm-commits]

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Introduce new option -print-changed-only and associated change printer.

Introduce a new option -print-changed-only that controls a new change
printer that only reports before and after a pass changes the IR.  This
is similar to -print-changed -print-before-changed except all of the
other messages are suppressed (ie, no initial IR and no messages about
ignored, filtered or non-modifying passes).  The usual filtering options
are obeyed.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D92589

Files:
  llvm/include/llvm/Passes/StandardInstrumentations.h
  llvm/lib/Passes/StandardInstrumentations.cpp
  llvm/test/Other/change-printer.ll

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