This probably could/should be split up into multiple commits, but
it's simpler to make this a monolithic change.
This change inlines a bunch of logic from spirv_to_dxil into the
spirv2dxil tool so that linking can be done on the nir shaders.
Probably the linking functionality should be exposed in the lib/dll
form too, which means that a helper for freeing intermediate nir
would be needed too. That's TODO for now.
The tool now requires arguments to be in-order, and once a filename
is encountered, will use the previous arguments to compile the shader.
If multiple graphics shaders are passed, they're linked as if they
were forming a pipeline together.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20440>
Jesse Natalie
531d17c334