[PATCH] D88757: add new option print-before-changed that modifies print-changed to also print before passes that change the IR

[Jamie Schmeiser via Phabricator via llvm-commits]

jamieschmeiser created this revision.
jamieschmeiser added reviewers: aeubanks, yrouban, ychen, MaskRay.
Herald added a subscriber: hiraditya.
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jamieschmeiser requested review of this revision.

Add an option -print-before-changed that modifies the print-changed
behaviour so that it prints the IR before a pass that changed it in
addition to printing the IR after the pass.  Note that the option
does nothing in isolation.  The filtering options work as expected.
Lit tests are included.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D88757

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

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