llvm-project/clang-tools-extra
Greg Miller d038faea46 [clang-tidy] add option performance-move-const-arg.CheckMoveToConstRef
This option allows callers to disable the warning from
https://clang.llvm.org/extra/clang-tidy/checks/performance-move-const-arg.html
that would warn on the following

```
void f(const string &s);
string s;
f(std::move(s));  // ALLOWED if performance-move-const-arg.CheckMoveToConstRef=false
```

The reason people might want to disable this check, is because it allows
callers to use `std::move()` or not based on local reasoning about the
argument, and without having to care about how the function `f` accepts
the argument. Indeed, `f` might accept the argument by const-ref today,
but change to by-value tomorrow, and if the caller had moved the
argument that they were finished with, the code would work as
efficiently as possible regardless of how `f` accepted the parameter.

Reviewed By: ymandel

Differential Revision: https://reviews.llvm.org/D119370
2022-02-10 13:31:07 +00:00
..
clang-apply-replacements [clang-tools-extra] Remove unused forward declarations (NFC) 2022-01-30 16:05:00 -08:00
clang-change-namespace Reapply "Support Attr in DynTypedNode and ASTMatchers." 2021-08-06 22:30:32 +02:00
clang-doc [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
clang-include-fixer [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
clang-move [SystemZ][z/OS][Windows] Add new OF_TextWithCRLF flag and use this flag instead of OF_Text 2021-04-06 07:23:31 -04:00
clang-query [clang-query] Add check to prevent setting srcloc when no introspection is available. 2021-04-28 11:21:35 +01:00
clang-reorder-fields [clang-tooling] Prevent llvm::fatal_error on invalid CLI option 2021-01-29 10:15:06 +01:00
clang-tidy [clang-tidy] add option performance-move-const-arg.CheckMoveToConstRef 2022-02-10 13:31:07 +00:00
clangd NFC: fix GCC warning -Wcast-qual 2022-02-09 18:03:25 -08:00
docs [clang-tidy] add option performance-move-const-arg.CheckMoveToConstRef 2022-02-10 13:31:07 +00:00
modularize [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
pp-trace [clang] Let PPCallbacks::PragmaWarning() pass specifier as enum instead of string 2021-09-28 19:47:27 -04:00
test [clang-tidy] add option performance-move-const-arg.CheckMoveToConstRef 2022-02-10 13:31:07 +00:00
tool-template [OpenMP] "UnFix" layering problem with FrontendOpenMP 2020-04-07 14:41:18 -05:00
unittests [clang-tidy] Fix LLVM include order check policy 2022-02-03 17:32:43 +01:00
.gitignore
CMakeLists.txt [clang-tools-extra][cmake] Use `GNUInstallDirs` to support custom installation dirs. 2022-01-22 20:57:21 +00:00
CODE_OWNERS.TXT [clangd] add CODE_OWNERS 2020-01-29 12:43:19 +01:00
LICENSE.TXT
README.txt

README.txt

//===----------------------------------------------------------------------===//
// Clang Tools repository
//===----------------------------------------------------------------------===//

Welcome to the repository of extra Clang Tools.  This repository holds tools
that are developed as part of the LLVM compiler infrastructure project and the
Clang frontend.  These tools are kept in a separate "extra" repository to
allow lighter weight checkouts of the core Clang codebase.

This repository is only intended to be checked out inside of a full LLVM+Clang
tree, and in the 'tools/extra' subdirectory of the Clang checkout.

All discussion regarding Clang, Clang-based tools, and code in this repository
should be held using the standard Clang mailing lists:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

Code review for this tree should take place on the standard Clang patch and
commit lists:
  http://lists.llvm.org/mailman/listinfo/cfe-commits

If you find a bug in these tools, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/