balazske wrote:
> Could you please show your commands which reproduced this crash? I tested
> locally with the following commands and it runs OK.
>
> ```c++
> clang++ -cc1 -std=c++17 -emit-pch -o test.cpp.ast test.cpp
> clang++ -cc1 -x c++ -ast-merge test.cpp.ast /dev/null -ast-dump
> ```
That code is only an example, it differs not much of the real code that caused
the crash. But it is not enough to use this code for the problem reproduction.
This code can be used to get the case when the specialization list is changed
before the insertion, but even then no crash happens:
```c++
namespace N {
template <unsigned X>
int B = B<X - 1> + B<X - 2>;
template <>
int B<0> = 0;
template <>
int B<1> = 1;
}
int A = N::B<5>;
```
With clang version 18.1.6 the original crash does not occur any more.
The "original crash" was reproduced on specific source files of project
"contour". Probably I can attach the files and command, but some changes can be
required to make it work.
https://github.com/llvm/llvm-project/pull/89887
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