For several years now Intel has been working on SYCL support within LLVM and various related efforts like the LLVM SPIR-V back-end as part of their oneAPI ambitions and Data Parallel C++ across their spectrum of hardware. The latest hitting upstream LLVM is libsycl as a SYCL run-time library.
Merged this past week thanks to Intel engineers is libsycl as a new top-level LLVM runtime project for a run-time library implementation of the SYCL specification. This is another piece to their puzzle in working on full support for the SYCL programming model within LLVM. Various device offloading elements and more are still being worked on.
Those wanting to learn more about this now-upstream libsycl code can see this merge request for all the details. Great seeing Intel’s LLVM upstreaming efforts around SYCL/LLVM continuing even amid their ongoing restructuring.
Libsycl is too late to be found in LLVM 21 releasing soon but will be baking for the LLVM 22 release due out around March of next year.
