Clang unexpectedly crashing

[shvrma]

The project attempted to compile are there. Version of Clang: the latest one from the Arch Linux repo, 19.1.7-1. It seems to be a frontend bug as determined by instructions in the Submitting Bug Report guide. Clang complains about inability to produce code for std::__do_visit for variant visitation. Latest g++ refuses to compile the code, complaining about an invalid template parameter, which in turn defines some method with such. Latest MSVC compiles the given code and it seems to run.

As asked, additional files attached, but the problem seems reproducible at least across my PC's: tmp.zip.

P. S. Originally issue was seen on this specific commit. Have made a reduced version there.

[llvmbot]

@llvm/issue-subscribers-clang-modules

Author: Oleksandr (shvrma)

Details

The project attempted to compile are [there](https://sources.shvrma.click/shvrma/lualike). Version of Clang: the latest one from the Arch Linux repo, *19.1.7-1*. It seems to be a frontend bug as determined by instructions in the Submitting Bug Report guide. Clang complains about inability to produce code for *std::__do_visit* for variant visitation. Latest g++ refuses to compile the code, complaining about an invalid template parameter, which in turn defines some method with such. Latest MSVC compiles the given code and it seems to run.

As asked, additional files attached, but the problem seems reproducible at least across my PC's: tmp.zip.

[Endilll]

Can you reproduce this #include'ing lualike.lexer instead of importing it? Modules are not included in the preprocessed sources that Clang generates, which means the reproducer is not self-contained.

[llvmbot]

@llvm/issue-subscribers-c-1

Author: Oleksandr (shvrma)

Details

The project attempted to compile are [there](https://sources.shvrma.click/shvrma/lualike). Version of Clang: the latest one from the Arch Linux repo, *19.1.7-1*. It seems to be a frontend bug as determined by instructions in the Submitting Bug Report guide. Clang complains about inability to produce code for *std::__do_visit* for variant visitation. Latest g++ refuses to compile the code, complaining about an invalid template parameter, which in turn defines some method with such. Latest MSVC compiles the given code and it seems to run.

As asked, additional files attached, but the problem seems reproducible at least across my PC's: tmp.zip.