[Bug 1909805] Re: libclc-amdgcn missing files for current AMD APUs

[Oibaf]

Upstream issue:
https://github.com/llvm/llvm-project/issues/44186
https://github.com/llvm/llvm-project/issues/50417
https://github.com/llvm/llvm-project/issues/52665


** Also affects: llvm-toolchain-15 (Ubuntu)
   Importance: Undecided
       Status: New

** Bug watch added: github.com/llvm/llvm-project/issues #52665
   https://github.com/llvm/llvm-project/issues/52665

** Also affects: llvm via
   https://github.com/llvm/llvm-project/issues/52665
   Importance: Unknown
       Status: Unknown

** Bug watch added: github.com/llvm/llvm-project/issues #44186
   https://github.com/llvm/llvm-project/issues/44186

** Bug watch added: github.com/llvm/llvm-project/issues #50417
   https://github.com/llvm/llvm-project/issues/50417

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https://bugs.launchpad.net/bugs/1909805

Title:
  libclc-amdgcn missing files for current AMD APUs

Status in LLVM:
  Unknown
Status in libclc package in Ubuntu:
  Invalid
Status in llvm-toolchain-14 package in Ubuntu:
  Confirmed
Status in llvm-toolchain-15 package in Ubuntu:
  New

Bug description:
  I'm finding that the libclc support for current AMD APUs is missing,
  at least for Ryzen 4000 series laptop APUs. when running something
  like `hashcat -b --force`, you get the following:

  clBuildProgram(): CL_BUILD_PROGRAM_FAILURE

  fatal error: cannot open file '/usr/lib/clc/gfx909-amdgcn-mesa-
  mesa3d.bc': No such file or directory

  * Device #1: Kernel /usr/share/hashcat/OpenCL/shared.cl build failed.

  Looking at the package, there's up to gfx906*, so if there's upstream
  support for these APUs, it'd be great to get the support packaged in.
  I'm filing this in the hope we can get this sorted out pre-21.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: libclc-amdgcn 0.2.0+git20190827-7
  ProcVersionSignature: Ubuntu 5.8.0-33.36-generic 5.8.17
  Uname: Linux 5.8.0-33-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu50.3
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: X-Cinnamon
  Date: Fri Jan  1 04:22:24 2021
  PackageArchitecture: all
  SourcePackage: libclc
  UpgradeStatus: No upgrade log present (probably fresh install)

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