https://github.com/flovent updated https://github.com/llvm/llvm-project/pull/127394
>From f7439943d138bdfee87f77a1c44b3d7d26618129 Mon Sep 17 00:00:00 2001 From: flovent <flb...@protonmail.com> Date: Sun, 16 Feb 2025 21:07:55 +0800 Subject: [PATCH 1/4] [clang-tidy] Fix false positive for cppcoreguidelines-pro-bounds-pointer-arithmetic --- .../ProBoundsPointerArithmeticCheck.cpp | 3 ++- clang-tools-extra/docs/ReleaseNotes.rst | 4 ++++ ...-bounds-pointer-arithmetic-issue126424.cpp | 19 +++++++++++++++++++ 3 files changed, 25 insertions(+), 1 deletion(-) create mode 100644 clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp diff --git a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp index a1494a095f5b6..0d68790349fb5 100644 --- a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp +++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp @@ -42,7 +42,8 @@ void ProBoundsPointerArithmeticCheck::registerMatchers(MatchFinder *Finder) { arraySubscriptExpr( hasBase(ignoringImpCasts( anyOf(AllPointerTypes, - hasType(decayedType(hasDecayedType(pointerType()))))))) + hasType(decayedType(hasDecayedType(pointerType())))))), + hasIndex(hasType(isInteger()))) .bind("expr"), this); } diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst index 8032f0d23f494..fa644277b5afa 100644 --- a/clang-tools-extra/docs/ReleaseNotes.rst +++ b/clang-tools-extra/docs/ReleaseNotes.rst @@ -234,6 +234,10 @@ Changes in existing checks tolerating fix-it breaking compilation when functions is used as pointers to avoid matching usage of functions within the current compilation unit. +- Improved :doc:`cppcoreguidelines-pro-bounds-pointer-arithmetic + <clang-tidy/checks/cppcoreguidelines/pro-bounds-pointer-arithmetic>` check by + fix false positives related to operator overloading and templates. + Removed checks ^^^^^^^^^^^^^^ diff --git a/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp new file mode 100644 index 0000000000000..b6b7a9664f38d --- /dev/null +++ b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp @@ -0,0 +1,19 @@ +// RUN: %check_clang_tidy %s cppcoreguidelines-pro-bounds-pointer-arithmetic %t + +namespace std { +template <typename, typename> +class pair {}; + +template <typename Key, typename Value> +class map { + public: + using value_type = pair<Key, Value>; + value_type& operator[](const Key& key); + value_type& operator[](Key&& key); + }; +} + +template <typename R> +int f(std::map<R*, int>& map, R* r) { + return map[r]; // OK +} \ No newline at end of file >From c93ab7ea93f2356b6089bd4558d8e0bcfc664c18 Mon Sep 17 00:00:00 2001 From: flovent <flb...@protonmail.com> Date: Sun, 16 Feb 2025 21:18:45 +0800 Subject: [PATCH 2/4] add missing new line for testcase --- .../pro-bounds-pointer-arithmetic-issue126424.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp index b6b7a9664f38d..a76798423ee17 100644 --- a/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp +++ b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-issue126424.cpp @@ -16,4 +16,4 @@ class map { template <typename R> int f(std::map<R*, int>& map, R* r) { return map[r]; // OK -} \ No newline at end of file +} >From 8092d8a2c08f07b71ca72a94a5b7a2f8dcfeaa87 Mon Sep 17 00:00:00 2001 From: flovent <flb...@protomail.com> Date: Mon, 17 Feb 2025 20:11:06 +0800 Subject: [PATCH 3/4] keep alpha order for release note --- clang-tools-extra/docs/ReleaseNotes.rst | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst index fa644277b5afa..4d7def9b1db16 100644 --- a/clang-tools-extra/docs/ReleaseNotes.rst +++ b/clang-tools-extra/docs/ReleaseNotes.rst @@ -176,6 +176,10 @@ Changes in existing checks <clang-tidy/checks/concurrency/mt-unsafe>` check by fixing a false positive where ``strerror`` was flagged as MT-unsafe. +- Improved :doc:`cppcoreguidelines-pro-bounds-pointer-arithmetic + <clang-tidy/checks/cppcoreguidelines/pro-bounds-pointer-arithmetic>` check by + fix false positives related to operator overloading and templates. + - Improved :doc:`misc-const-correctness <clang-tidy/checks/misc/const-correctness>` check by adding the option `AllowedTypes`, that excludes specified types from const-correctness @@ -234,10 +238,6 @@ Changes in existing checks tolerating fix-it breaking compilation when functions is used as pointers to avoid matching usage of functions within the current compilation unit. -- Improved :doc:`cppcoreguidelines-pro-bounds-pointer-arithmetic - <clang-tidy/checks/cppcoreguidelines/pro-bounds-pointer-arithmetic>` check by - fix false positives related to operator overloading and templates. - Removed checks ^^^^^^^^^^^^^^ >From 38d3f8226ee77587eacfbcb0f47ae5704a356f94 Mon Sep 17 00:00:00 2001 From: flovent <flb...@protonmail.com> Date: Sat, 24 May 2025 18:13:09 +0800 Subject: [PATCH 4/4] optimize release notes --- clang-tools-extra/docs/ReleaseNotes.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst index 4d7def9b1db16..919625cfe87a2 100644 --- a/clang-tools-extra/docs/ReleaseNotes.rst +++ b/clang-tools-extra/docs/ReleaseNotes.rst @@ -178,7 +178,8 @@ Changes in existing checks - Improved :doc:`cppcoreguidelines-pro-bounds-pointer-arithmetic <clang-tidy/checks/cppcoreguidelines/pro-bounds-pointer-arithmetic>` check by - fix false positives related to operator overloading and templates. + fixing false positives when calling indexing operators that do not perform + pointer arithmetic in template, for example ``std::map::operator[]``. - Improved :doc:`misc-const-correctness <clang-tidy/checks/misc/const-correctness>` check by adding the option _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits