https://github.com/flovent updated
https://github.com/llvm/llvm-project/pull/141345
>From 5842c573aa94063ea842230f19d5807a77b130e6 Mon Sep 17 00:00:00 2001
From: fubowen <fubo...@protomail.com>
Date: Sat, 24 May 2025 21:29:53 +0800
Subject: [PATCH 1/2] [clang-tidy] Add check for assignment or comparision
operators' operand in `readability-math-missing-parentheses`
---
.../readability/MathMissingParenthesesCheck.cpp | 16 +++++++++-------
clang-tools-extra/docs/ReleaseNotes.rst | 5 +++++
.../readability/math-missing-parentheses.cpp | 14 ++++++++++++++
3 files changed, 28 insertions(+), 7 deletions(-)
diff --git
a/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.cpp
b/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.cpp
index 64ce94e3fc1db..d867c94242f9b 100644
--- a/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.cpp
+++ b/clang-tools-extra/clang-tidy/readability/MathMissingParenthesesCheck.cpp
@@ -16,13 +16,15 @@ using namespace clang::ast_matchers;
namespace clang::tidy::readability {
void MathMissingParenthesesCheck::registerMatchers(MatchFinder *Finder) {
- Finder->addMatcher(binaryOperator(unless(hasParent(binaryOperator())),
- unless(isAssignmentOperator()),
- unless(isComparisonOperator()),
- unless(hasAnyOperatorName("&&", "||")),
- hasDescendant(binaryOperator()))
- .bind("binOp"),
- this);
+ Finder->addMatcher(
+ binaryOperator(
+ unless(hasParent(binaryOperator(unless(isAssignmentOperator()),
+ unless(isComparisonOperator())))),
+ unless(isAssignmentOperator()), unless(isComparisonOperator()),
+ unless(hasAnyOperatorName("&&", "||")),
+ hasDescendant(binaryOperator()))
+ .bind("binOp"),
+ this);
}
static int getPrecedence(const BinaryOperator *BinOp) {
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst
b/clang-tools-extra/docs/ReleaseNotes.rst
index 8032f0d23f494..a7530a236e9ec 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -176,6 +176,11 @@ 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:`readability-math-missing-parentheses
+ <clang-tidy/checks/readability/math-missing-parentheses>` check by fixing
+ false negatives where math expressions are the operand of assignment
operators
+ or comparison operators.
+
- Improved :doc:`misc-const-correctness
<clang-tidy/checks/misc/const-correctness>` check by adding the option
`AllowedTypes`, that excludes specified types from const-correctness
diff --git
a/clang-tools-extra/test/clang-tidy/checkers/readability/math-missing-parentheses.cpp
b/clang-tools-extra/test/clang-tidy/checkers/readability/math-missing-parentheses.cpp
index 80d2bc304bb5b..5c10ed59178d8 100644
---
a/clang-tools-extra/test/clang-tidy/checkers/readability/math-missing-parentheses.cpp
+++
b/clang-tools-extra/test/clang-tidy/checkers/readability/math-missing-parentheses.cpp
@@ -157,3 +157,17 @@ namespace PR92516 {
for (j = i + 1, 2; j < 1; ++j) {}
}
}
+
+namespace PR141249 {
+ void AssignAsParentBinOp(int* netChange, int* nums, int k, int i) {
+ //CHECK-MESSAGES: :[[@LINE+1]]:30: warning: '-' has higher precedence than
'^'; add parentheses to explicitly specify the order of operations
[readability-math-missing-parentheses]
+ netChange[i] = nums[i] ^ k - nums[i];
+ }
+}
+
+void CompareAsParentBinOp(int b) {
+ //CHECK-MESSAGES: :[[@LINE+1]]:12: warning: '*' has higher precedence than
'-'; add parentheses to explicitly specify the order of operations
[readability-math-missing-parentheses]
+ if (b == 1 * 2 - 3) {
+
+ }
+}
>From 855cef0a05d69a4b68f9a132918ece47c47517f6 Mon Sep 17 00:00:00 2001
From: fubowen <fubo...@protomail.com>
Date: Sat, 24 May 2025 22:41:31 +0800
Subject: [PATCH 2/2] keep alpha order of note
---
clang-tools-extra/docs/ReleaseNotes.rst | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst
b/clang-tools-extra/docs/ReleaseNotes.rst
index a7530a236e9ec..2f859e47d0b70 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -176,11 +176,6 @@ 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:`readability-math-missing-parentheses
- <clang-tidy/checks/readability/math-missing-parentheses>` check by fixing
- false negatives where math expressions are the operand of assignment
operators
- or comparison operators.
-
- Improved :doc:`misc-const-correctness
<clang-tidy/checks/misc/const-correctness>` check by adding the option
`AllowedTypes`, that excludes specified types from const-correctness
@@ -239,6 +234,11 @@ 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:`readability-math-missing-parentheses
+ <clang-tidy/checks/readability/math-missing-parentheses>` check by fixing
+ false negatives where math expressions are the operand of assignment
operators
+ or comparison operators.
+
Removed checks
^^^^^^^^^^^^^^
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