[Libre-soc-dev] Loading Vulkan Driver

[Dave Airlie]

On Mon, 24 Aug 2020 at 10:12, Jacob Lifshay <programmerjake at gmail.com> wrote:
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> On Sun, Aug 23, 2020, 17:08 Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:
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>> On Monday, August 24, 2020, Dave Airlie <airlied at gmail.com> wrote:
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>>> amdgpu is completely scalar,
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>> it is?? waah! that's new information to me.  does it even squash vec2/3/4, predication and swizzle?
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> yes, iirc.
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>> what about the upstream amdgpu LLVM-IR?  that still preserves vector intrinsics, right?
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>> i'm assuming that AMDVLK preserves vector intrinsics?
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>> AMDVLK's associated LLVM port was what ended up upstream, is that right?
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> no, that is the existing LLVM backend from AMD's opengl/opencl drivers. amdvlk came later.

Those are the same codebase, amdvlk just uses a fork of llvm, but the
differences are only minor changes for impedance mismatch and release
timing, they never diverge more than necessary.

Dave.