Check out Mesa's llvmpipe[1]: > The Gallium LLVMpipe driver is a software rasterizer that uses LLVM to do runtime code generation. Shaders, point/line/triangle

Check out Mesa's llvmpipe[1]: > The Gallium LLVMpipe driver is a software rasterizer that uses LLVM to do runtime code generation. Shaders, point/line/triangle rasterization and vertex processing are implemented with LLVM IR which is translated to x86, x86-64, or ppc64le machine code. Also, the driver is multithreaded to take advantage of multiple CPU cores (up to 32 at this time). It’s the fastest software rasterizer for Mesa. [1]: https://docs.mesa3d.org/drivers/llvmpipe.html https://docs.mesa3d.org/drivers/llvmpipe.html