| Issue |
115521
|
| Summary |
Incorrect mangling of __bf16 in template parameter with nested namespaces.
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
SagarMaheshwari99
|
```
namespace NS1 {
namespace NS2 {
struct NS2_struct1 {};
}
template<typename tpVal, typename tpVal1>
class Class1 {};
template<typename tpVal>
using Name1 = Class1<tpVal, NS2::NS2_struct1>;
}
template <typename dtype>
void MyFunc(NS1::Name1<dtype>& input) {}
typedef __bf16 bfloat16;
struct bf16_struct {
short a;
};
int main() {
NS1::Class1<bfloat16, NS1::NS2::NS2_struct1> input;
MyFunc<bfloat16>(input);
NS1::Class1<bf16_struct, NS1::NS2::NS2_struct1> input1;
MyFunc<bf16_struct>(input1);
return 0;
}
```
For __bf16 case the mangling comes out to be -
`_Z6MyFuncIu6__bf16EvRN3NS16Class1IT_NS0_3NS211NS2_struct1EEE`
which demangled comes out to be -
`void MyFunc<__bf16>(NS1::Class1<__bf16, __bf16::NS2::NS2_struct1>&)`
which is incorrect, as __bf16 is treated as a namespace here.
For bf16_struct, right mangling is produced -
`_Z6MyFuncI11bf16_structEvRN3NS16Class1IT_NS1_3NS211NS2_struct1EEE`
and the demangling comes out to be -
`void MyFunc<bf16_struct>(NS1::Class1<bf16_struct, NS1::NS2::NS2_struct1>&)`
https://godbolt.org/z/dTWxYbqhM
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