Recent initiatives attempt to bring modern C++ applications to heterogeneous devices. The Khronos Group published SYCL in mid-2015. SYCL offers a single-source C++ programming environment built on top of OpenCL. Codeplay and the University of Bath are currently collaborating on a C++ front-end for HSAIL (HSA Intermediate Language) from the HSA Foundation. Both models use a similar single-source C++ approach, in which the host and device kernel C++ code is interleaved. A kernel always starts using specific function calls, which take a functor object. To support the compilation of these two high-level programming models, Codeplay's compilers rely on a common engine based on Clang and LLVM to extract and manipulate those kernels.
In this presentation we will briefly present both programming models and then focus on Codeplay's usage of Clang to manage both models.
