================
@@ -0,0 +1,46 @@
+// RUN: %check_clang_tidy -check-suffix=CONFIG %s
performance-noexcept-move-constructor,performance-noexcept-destructor %t -- \
+// RUN: -config="{CheckOptions:
{performance-noexcept-move-constructor.AllowFalseEvaluated: true}}" \
+// RUN: -- -fexceptions
+
+namespace std
+{
+ template <typename T>
+ struct is_nothrow_move_constructible
+ {
+ static constexpr bool value = __is_nothrow_constructible(T,
__add_rvalue_reference(T));
+ };
+} // namespace std
+
+struct ThrowOnAnything {
+ ThrowOnAnything() noexcept(false);
+ ThrowOnAnything(ThrowOnAnything&&) noexcept(false);
+ ThrowOnAnything& operator=(ThrowOnAnything &&) noexcept(false);
+ ~ThrowOnAnything() noexcept(false);
+};
+
+struct C_1 {
+ static constexpr bool kFalse = false;
+ C_1(C_1&&) noexcept(kFalse) = default;
+ C_1 &operator=(C_1 &&) noexcept(kFalse);
+};
+
+struct C_2 {
+ static constexpr bool kEval =
std::is_nothrow_move_constructible<ThrowOnAnything>::value;
+ static_assert(!kEval); // kEval == false;
+
+ C_2(C_2&&) noexcept(kEval) = default;
+ C_2 &operator=(C_2 &&) noexcept(kEval);
+
+ ThrowOnAnything field;
+};
+
+struct C_3 {
+ static constexpr bool kEval =
std::is_nothrow_move_constructible<ThrowOnAnything>::value;
+ static_assert(!kEval); // kEval == false;
+
+ C_3(C_3&&) noexcept(kEval) = default;
+ ~C_3() noexcept(kEval) = default;
+ // CHECK-MESSAGES-CONFIG: :[[@LINE-1]]:21: warning: noexcept specifier on
the destructor evaluates to 'false'
+
+ ThrowOnAnything field;
+};
----------------
vbvictor wrote:
To make it more clear, I can write something like
```diff
diff --git
a/clang-tools-extra/clang-tidy/performance/NoexceptFunctionBaseCheck.cpp
b/clang-tools-extra/clang-tidy/performance/NoexceptFunctionBaseCheck.cpp
index 8371b6aafd8b..dd1ee023bde3 100644
--- a/clang-tools-extra/clang-tidy/performance/NoexceptFunctionBaseCheck.cpp
+++ b/clang-tools-extra/clang-tidy/performance/NoexceptFunctionBaseCheck.cpp
@@ -20,6 +20,9 @@ void NoexceptFunctionBaseCheck::check(const
MatchFinder::MatchResult &Result) {
const auto *FuncDecl =
Result.Nodes.getNodeAs<FunctionDecl>(BindFuncDeclName);
assert(FuncDecl);
+ if (AllowFalseEvaluated)
+ return;
+
if (SpecAnalyzer.analyze(FuncDecl) !=
utils::ExceptionSpecAnalyzer::State::Throwing)
return;
```
and all the tests will still pass. But clearly I broke the whole check.
https://github.com/llvm/llvm-project/pull/126897
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