As seen here https://community.amd.com/message/2878648#2878652
Vega series doesn't seems to support SPIR or SPIR-V. However I can see "cl_khr_spir" on "clinfo" (my device is identified as gfx900 with mesa amdgpu driver on ubuntu 18.04 64bit).
So I question myself if it is related with the dipak answer, and "cl_khr_spir" is still reported by the runtime even if it is not supported. Or I miss something?
Any plan for a support of SPIR? We need a standard api, your gpu are great, but we can't code / maintain our code to run on it.