Support for popcount.

[rjfnobre]

Is the current implementation of hipSYCL supposed to have support for popcount()?

I get the following error when compiling SYCL code that uses popcount with the syclcc compiler from hipSYCL.
error: ‘popcount’ is not a member of ‘cl::sycl’

[illuhad]

popcount is not yet implemented. We will add it together with other bit count functions such as ctz and clz which are also still missing.
If you need this functionality urgently, you can use hipSYCL's backend interoperability mechanisms to invoke CUDA/HIP intrinsics such as __popc().
See https://github.com/illuhad/hipSYCL/blob/develop/doc/hip-source-interop.md

[rjfnobre]

Thanks for the information. This SYCL implementation seems to be advancing at a good pace. I will keep an eye on the upcoming updates of this project.