d18a784d41
Summary: The changes in https://www.github.com/llvm/llvm-project/pull/185552 allowed us to start building the standard `libclang_rt.profile.a` for GPU targets. This PR expands this by adding an optimized GPU routine for counter increment and removing the special-case handling of these functions in the OpenMP runtime. Vast majority of these functions are boilerplate, but we should be able to do more interesting things with this in the future, like value or memory profiling.
The LLVM/Offload Subproject
The Offload subproject aims at providing tooling, runtimes, and APIs that allow users to execute code on accelerators or other "co-processors" that may or may not match the architecture of their "host". In the long run, all kinds of targets are in scope of this effort, including but not limited to: CPUs, GPUs, FPGAs, AI/ML accelerators, distributed resources, etc.
For OpenMP offload users, the project is ready and fully usable. The final API design is still under development. More content will show up here and on our webpage soon. In the meantime, people are encouraged to participate in our meetings (see below) and check our development board as well as the discussions on Discourse.
Meetings
Every second Wednesday, 7:00 - 8:00am PT, starting Jan 24, 2024. Alternates with the OpenMP in LLVM meeting. invite.ics Meeting Minutes and Agenda