[PATCH] D91890: Introduce -print-changes which show changes in patch-like format
Jamie Schmeiser via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Nov 20 12:51:54 PST 2020
jamieschmeiser created this revision.
jamieschmeiser added reviewers: aeubanks, madhur13490.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.
jamieschmeiser requested review of this revision.
Introduce -print-changes which prints the changes made by a pass in a patch-like form.
Introduce template base classes that hold a textual represent of the IR
based on basic blocks and a template base class for comparing this
representation. A new change printer is introduced that uses these
classes to save and compare representations of the IR before and after
each pass. It only reports when changes are made by a pass (similar to
-print-changed) except that the changes are shown in a patch-like format
with those lines that are removed shown prefixed with '-' and those added
shown with '+'. This option was introduced in my tutorial at the virtual
developer's meeting.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D91890
Files:
llvm/include/llvm/Passes/StandardInstrumentations.h
llvm/lib/Passes/StandardInstrumentations.cpp
llvm/test/Other/ChangePrinters/lit.local.cfg
llvm/test/Other/ChangePrinters/print-changes.ll
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