libclc missing support for Tonga

[Wladimir J. van der Laan]

Trying to run a basic OpenCL demo on a AMD Tonga series card on Ubuntu 16.04 gives:

$ ./hello
Error: Failed to build program executable!
fatal error: cannot open file '/usr/lib/clc/tonga-amdgcn--.bc': No such file or directory

I have installed the appropriate icd packages and it reports fine:

1. Device: AMD TONGA (DRM 3.1.0, LLVM 3.8.0)
 1.1 Hardware version: OpenCL 1.1 MESA 11.2.0
 1.2 Software version: 11.2.0
 1.3 OpenCL C version: OpenCL C 1.1
 1.4 Parallel compute units: 28

But it appears that a bitcode blob is missing. Looking in /usr/lib/clc/ there are other amdgcn-* blobs, but not for my card.

https://bugzilla.redhat.com/show_bug.cgi?id=1304903 is a similar issue. I think it is resolved by upgrading libclc.

[Timo Aaltonen (tjaalton)]

this is fixed in 16.10

libclc (0.2.0+git20160907-1) experimental; urgency=medium

  * New upstream snapshot (closes: #836960).
  * Build with clang 3.9.
  * Drop devices.patch, upstream.
  * Use https for Vcs-Git field.

 -- Timo Aaltonen <email address hidden> Fri, 16 Sep 2016 09:20:06 +0300