SPIR-V Support For Gallium3D's Clover Is Closer To Reality
It's been a busy past week for open-source GPU compute with Intel opening up their new NEO OpenCL stack, Karol Herbst at Red Hat posting the latest on Nouveau NIR support for SPIR-V compute, and now longtime Nouveau contributor Pierre Moreau has presented his latest for SPIR-V Clover support.
Pierre has been spending about the past year adding SPIR-V support to Gallium3D's "Clover" OpenCL state tracker. SPIR-V, of course, is the intermediate representation used now by OpenCL and Vulkan.
The work is designed to allow the Clover state tracker to accept SPIR-V binaries. The latest code in this week's "v3" patch series should allow for any drivers currently supported by Clover to accept SPIR-V binaries via LLVM or native IR formats. This code does depend upon an llvm-spirv code-base, at least until that is accepted in upstream LLVM. These patches for now also are skipping out on the SPIR-V Clover back-end that he's also been developing. Also, the patch series drops Clover's TGSI IR back-end since it's not being used by any drivers.
The latest details on this newest open-source GPU compute effort via the Mesa mailing list.
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