[cfe-dev] A proposal for adding OpenCL C++ support (Spec v2.2)
Anastasia Stulova via cfe-dev
cfe-dev at lists.llvm.org
Fri Feb 23 08:29:00 PST 2018
A number of developers from the member companies within the Khronos Group are interested to contribute the prototype implementation of OpenCL C++ that is currently located on github and based on version 3.6:
This implementation is compliant to OpenCL v2.2 standard:
Similarly to OpenCL C being based on C99, OpenCL C++ support is entirely based on C++14 with a number of extensions (some of which will be shared with OpenCL C) and a few minor restrictions.
The plan would be to take small patches from the github repository and perform any necessary rework and clean up before putting up for review. From the OpenCL side, I don't see any issue with this plan as it doesn't interfere with any current development I am aware of, and also it would be great to progress to the next OpenCL standard. I just want to check if there are any objections from anyone or things we should be aware of before the start. I'm particularly looking for feedback from C++ implementers as there might be some overlap.
Additionally, there are two more related threads, which I plan to discuss separately. There is:
(i) standard library support libclcxx: https://github.com/KhronosGroup/libclcxx.
(ii) and IR generation to SPIRV: http://lists.llvm.org/pipermail/llvm-dev/2018-February/121317.html
that we would like to provide as well, in order to allow Clang to produce an end binary targeting a wider range of architectures directly (not just AMD GPU). We expect that the complete open source solution for OpenCL C++ will increase significantly Clang users and unify our development forces i.e. refactoring, bug hunting, etc. The plan would be to do similar for OpenCL C too at a later point of time.
Please, contact me if you have any thoughts or comments.
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