[clang] [clang-tools-extra] [clang-tidy] New performance linter: performance-inefficient-copy-assign (PR #179467)

[via cfe-commits]

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@@ -115,13 +115,19 @@ New checks
 
   Looks for functions returning ``std::[w|u8|u16|u32]string`` and suggests to
   change it to ``std::[...]string_view`` for performance reasons if possible.
-  
+
 - New :doc:`modernize-use-structured-binding
   <clang-tidy/checks/modernize/use-structured-binding>` check.
 
   Finds places where structured bindings could be used to decompose pairs and
   suggests replacing them.
 
+- New :doc:`performance-inefficient-copy-assign
+  <clang-tidy/checks/performance/inefficient-copy-assign>` check.
+
+  Suggests insertion of ``std::move(...)`` to turn copy assignment operator
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EugeneZelenko wrote:

Please synchronize with first statement in documentation.

https://github.com/llvm/llvm-project/pull/179467