[PATCH] D124918: Add a new clang-tidy for non-trivial unused variables.

[Luca Versari via Phabricator via cfe-commits]

veluca93 created this revision.
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This check is meant to detect case that -Wunused-variable does not,
by integrating some extra knowledge of types. For example, a
std::vector<int> that only ever gets push_back()-ed is similar to a
written-but-never-read variable.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124918

Files:
  clang-tools-extra/clang-tidy/performance/CMakeLists.txt
  clang-tools-extra/clang-tidy/performance/PerformanceTidyModule.cpp
  clang-tools-extra/clang-tidy/performance/UnusedNoSideEffectCheck.cpp
  clang-tools-extra/clang-tidy/performance/UnusedNoSideEffectCheck.h
  clang-tools-extra/docs/ReleaseNotes.rst
  clang-tools-extra/docs/clang-tidy/checks/list.rst
  clang-tools-extra/docs/clang-tidy/checks/performance-unused-no-side-effect.rst
  clang-tools-extra/test/clang-tidy/checkers/performance-unused-no-side-effect.cpp

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