| Issue |
164691
|
| Summary |
Possible incorrect code generation when using variable templates (again)
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
jonas-eschmann
|
Hello,
I'm encountering issues with Clang when initializing nested, templated structs again. A similar, now solved issue is filed [here](https://github.com/llvm/llvm-project/issues/60373).
I was able to boil it down to this:
[https://godbolt.org/z/jvPeYed1x](https://godbolt.org/z/jvPeYed1x)
```c++
template <typename T>
struct A {
T* a = nullptr;
};
template <typename T>
struct B {
struct {
A<T> aa;
} b;
};
float d[] = {0.1337};
A<float> aa = {d};
B<float> b = {
{aa},
};
template <typename T>
struct C {
B<T> b;
};
template <typename T>
T factory = {b};
C<float> c = {b};
int main() {
return factory<C<float>>.b.b.aa.a == nullptr ? 100 : 0;
// return c.b.b.aa.a == nullptr ? 100 : 0;
}
```
I expect this to return 0.
This fails in Clang when using the `factory`. When instantiating C directly it works.
It fails in all Clang versions but works in GCC and MSVC.
Tagging the people involved in the previous issue because it seems very similar:
@shafik
@royjacobson
@erichkeane
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