Author: Shashi Shankar Date: 2025-07-24T08:48:27+02:00 New Revision: 31db0f0a7ae43981fdfadc693662c239f921a05b
URL: https://github.com/llvm/llvm-project/commit/31db0f0a7ae43981fdfadc693662c239f921a05b DIFF: https://github.com/llvm/llvm-project/commit/31db0f0a7ae43981fdfadc693662c239f921a05b.diff LOG: [Clang] Suppress deprecated field warnings in implicit functions definitions (#147400) Do not warn on deprecated member used in an implicit definition (such as a defaulted special member function). Co-authored-by: Corentin Jabot <corentinja...@gmail.com> Fixes #147293 Added: clang/test/Sema/implicit-special-member-deprecated.cpp Modified: clang/docs/ReleaseNotes.rst clang/lib/Sema/SemaAvailability.cpp Removed: ################################################################################ diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index dd6b44dd0c657..e685233e2400c 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -988,6 +988,7 @@ Bug Fixes to C++ Support non-empty initializer list. (#GH147949) - Fixed constant evaluation of equality comparisons of constexpr-unknown references. (#GH147663) - Diagnose binding a reference to ``*nullptr`` during constant evaluation. (#GH48665) +- Suppress -Wdeprecated-declarations in implicitly generated functions. (#GH147293) Bug Fixes to AST Handling ^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/clang/lib/Sema/SemaAvailability.cpp b/clang/lib/Sema/SemaAvailability.cpp index 8c6a17301fba6..68a698fea1815 100644 --- a/clang/lib/Sema/SemaAvailability.cpp +++ b/clang/lib/Sema/SemaAvailability.cpp @@ -547,6 +547,12 @@ static void DoEmitAvailabilityWarning(Sema &S, AvailabilityResult K, return; } case AR_Deprecated: + // Suppress -Wdeprecated-declarations in implicit + // functions. + if (const auto *FD = dyn_cast_or_null<FunctionDecl>(S.getCurFunctionDecl()); + FD && FD->isImplicit()) + return; + if (ObjCPropertyAccess) diag = diag::warn_property_method_deprecated; else if (S.currentEvaluationContext().IsCaseExpr) diff --git a/clang/test/Sema/implicit-special-member-deprecated.cpp b/clang/test/Sema/implicit-special-member-deprecated.cpp new file mode 100644 index 0000000000000..8e23404552f53 --- /dev/null +++ b/clang/test/Sema/implicit-special-member-deprecated.cpp @@ -0,0 +1,24 @@ +// RUN: %clang_cc1 -std=c++20 -Wdeprecated-declarations -verify %s + +struct A { + [[deprecated("use something else")]] int x = 42; // expected-note {{marked deprecated here}} +}; + +A makeDefaultA() { return {}; } // ctor is implicit → no warn +A copyA(const A &a) { return a; } // copy-ctor implicit → no warn + +void assignA() { + A a, b; + a = b; // copy-assign implicit → no warn +} + +void useA() { + A a; + (void)a.x; // expected-warning {{is deprecated}} +} + +// Explicitly-defaulted ctor – now silent +struct B { + [[deprecated]] int y; + B() = default; // no warning under new policy +}; _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
