[clang] [llvm] [SPIR-V] Enable variadic function lowering for the SPIR-V target (PR #175076)

[Dmitry Sidorov via cfe-commits]

https://github.com/MrSidims commented:

> where it's basically a struct layout with natural alignment

Frankly, that would be my preferable option as well. The only thing that I'm not really comfortable to answer is what should be the layout of such structure for Shader SPIR-V coming from HLSL.



https://github.com/llvm/llvm-project/pull/175076