[clang-tools-extra] [clang-tidy] Fix false positive in bugprone-use-after-move for std::tie (PR #192895)
Zeyi Xu via cfe-commits
cfe-commits at lists.llvm.org
Mon Jun 1 18:48:09 PDT 2026
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@@ -134,6 +134,17 @@ makeReinitMatcher(const ValueDecl *MovedVariable,
// built-in types.
binaryOperation(hasOperatorName("="),
hasLHS(ignoringParenImpCasts(DeclRefMatcher))),
+ // std::tie() assignment: std::tie(a, b) = expr reinitializes
+ // all variables passed to std::tie because the tuple
+ // assignment writes back through the stored references.
+ // ignoringImplicit strips the MaterializeTemporaryExpr that
+ // Clang inserts when calling operator= on the prvalue tuple.
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zeyi2 wrote:
```suggestion
```
https://github.com/llvm/llvm-project/pull/192895
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