[Libre-soc-bugs] [Bug 251] Initial 3D MESA non-accelerated software-only driver is needed

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=251

--- Comment #26 from vivekvpandya <vivekvpandya at gmail.com> ---
Writing complete MESA driver which uses LLVM to codegen seems very large
effort. It is only worth if this driver is not just for experimental use.

if we already agree that mesa llvmpipe has limitation then we may want to fix
that.

On side thought I would really like to evaluate that we really need all
benefits from NIR optimizations. (if that is the only reason to bring NIR in
flow)

Our enticipated flow:

Vulkan/OGL -> spirv -> (someIR)* -> LLVM -> LLVM Optimization and Codegen.

so without having solid numbers on performance that we required NIR
optimization I really would like to go AMDVLK fork that can generate ppc
assembly.

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