| Issue |
167247
|
| Summary |
[clang] regression in clang 21: `-Wmissing-noreturn` is emitted for virtual methods
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
jy-lefort
|
Sometimes I feel like I'm the only one in town to compile with `-Weverything`...
Test source:
```
#include <stdexcept>
struct Base {
virtual ~Base () = default;
virtual void foo () {
throw std::runtime_error("this base method does not return");
}
};
```
Compile:
```
$ clang++ -std=c++23 -Wmissing-noreturn -c test.cxx
test.cxx:6:18: warning: function 'foo' could be declared with attribute 'noreturn' [-Wmissing-noreturn]
6 | virtual void foo () {
| ^
1 warning generated.
```
This warning is obviously spurious: `Base::foo` does indeed not return, but a derived method may return.
The warning is emitted by clang 21.1.4. It did not occur with clang 20.x.
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