[Bug 2130186] Re: [needs-packaging] intel-dpcpp

[Frank Heimes]

** Tags added: pe-archive-admin-request

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Title:
  [needs-packaging] intel-dpcpp

Status in Ubuntu:
  In Progress
Status in The Questing Quokka:
  New
Status in The Resolute Raccoon:
  In Progress

Bug description:
  The DPC++ compiler is a LLVM-based compiler project that implements
  compiler and runtime support for the SYCL* language. We have worked
  with Intel to create and test this compiler in a PPA (linked below).

  [needs-packaging] intel-dpcpp

  Upstream: https://github.com/intel/llvm
  Upstream branch: sycl
  Upstream tag: v6.2.0
  License: Apache 2.0
  Target OS Release: 25.10 (Questing)
  PPA: https://launchpad.net/~kobuk-team/+archive/ubuntu/oneapi-release?field.series_filter=questing
  Source package in PPA: https://launchpad.net/~kobuk-team/+archive/ubuntu/oneapi-release/+sourcepub/17790840/+listing-archive-extra
  Source package in GitHub: https://github.com/canonical/oneapi-packaging/tree/main/compiler

  Note I will submit separate bugs to add two build-time dependencies
  for the compiler, and one runtime dependency. In addition, note that
  to create a stable build we vendored two build dependencies described
  below.

  intel-vc-intrinsics for these reasons:
  - We need the source for in-tree build of the compiler
  - The intel-vc-intrinsics debian package only includes headers
  - The intel-vc-intrinsics debian package depends on an old version of llvm, creating a conflict with the intel-dpcpp package

  Intel compute runtime level-zero headers for these reasons:
  - The compiler requires a very specific version of the headers
  - Headers enable experimental features not included in the level-zero API and are only meant to be consumed by the DPC++ compiler at build-time
  - More background and discussion: https://github.com/intel/llvm/issues/20318

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