506ca19dc9
Summary: This is going to be deprecated in https://github.com/llvm/llvm-project/pull/112849. This patch ports it to use the builtin instead. This isn't a compile constant, so it could slightly negatively affect codegen. There really should be an IR pass to turn it into a constant if the function has known attributes. Using the builtin is correct when we just do it for knowing the size like we do here. Obviously guarding w32/w64 code with this check would be broken.
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