Matrix mangling doesn't work on Windows

[StreetwareGames]

Works on linux targets:

https://clang.godbolt.org/z/5jvf6bnsn

But compiling the same code on Windows results in the following: error: cannot mangle this matrix type yet

[fhahn]

cc @llvm-beanz @bogner @farzonl in case they know anyone who could help out with mangling for Windows. Not sure if this would also be needed for HLSL?

[llvm-beanz]

I will start a conversation internally to see if we can get an answer.

[llvmbot]

@llvm/issue-subscribers-clang-frontend

Author: Streetware (StreetwareGames)

Works on linux targets:

https://clang.godbolt.org/z/5jvf6bnsn

But compiling the same code on Windows results in the following: error: cannot mangle this matrix type yet

[Losy001]

Any news on this?