[all-commits] [llvm/llvm-project] 2cc584: [clang][sema] Ignore xor-used-as-pow if both sides...

[tbaederr via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2cc58463caf4c8a43c2954e4206d3647c762ba30
      https://github.com/llvm/llvm-project/commit/2cc58463caf4c8a43c2954e4206d3647c762ba30
  Author: Timm Bäder <tbaeder at redhat.com>
  Date:   2021-02-25 (Thu, 25 Feb 2021)

  Changed paths:
    M clang/lib/Sema/SemaExpr.cpp
    M clang/test/SemaCXX/warn-xor-as-pow.cpp

  Log Message:
  -----------
  [clang][sema] Ignore xor-used-as-pow if both sides are macros

This happens in codebases a lot, which use xor where both sides are
macros. Using xor in that case is not the common error-prone 2^6 code
that the warning was introduced for.

Don't diagnose such a use of xor.

Differential Revision: https://reviews.llvm.org/D97445