[PATCH] D122111: [clang-tidy] Fix false positives in `misc-redundant-expression` check

Aaron Ballman via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon Mar 21 09:25:31 PDT 2022


aaron.ballman added inline comments.


================
Comment at: clang-tools-extra/clang-tidy/misc/RedundantExpressionCheck.cpp:605
+          unless(isMacro()), unless(isInTemplateInstantiation()),
+          hasRHS(ignoringParenImpCasts(integerLiteral().bind(ConstId))))
           .bind(OverloadId);
----------------
This seems incorrect to me -- the LHS and RHS can be swapped along with which operator is used and still achieve the same semantic results.

While playing around to test the behavior we currently have, I was a bit surprised at the difference in results here: https://godbolt.org/z/hE4qfca1b.

Also, do we need to bind? Nothing seems to look at that binding that I can see.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122111/new/

https://reviews.llvm.org/D122111



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