requested to merge hakzsam/mesa:radv_VK_EXT_graphics_pipeline_lib_ready into main
This experimental and very suboptimal implementation of graphics pipeline library shouldn't be used by anyone, except for development purposes. It's still under active development from my side. This extension is only exposed via RADV_PERFTEST=gpl anyways. It's very suboptimal because RADV doesn't yet support PS epilogs and VS prologs need to be improved/reworked because GPL changed the logic (eg. can't know the next stage when compiling a prolog). So, currently the driver ALWAYS retains NIR shaders during libs creation and it links and compiles in the final pipeline. I have WIP branches for approximately everything but it looks simpler to start merging an initial implementation in order to improve steps by steps from main. This commit might look simple and short but I already merged TON of preliminary work. RADV was definitely not ready for GPL and it's still not completely fine. Expect refactoring again. This implementation currently pass dEQP-VK.pipeline.pipeline_library.* on NAVI21, except few feedback creation tests due to CTS bugs.