Convergent functions and function parameters
SPMD semantics for GPU programs
- Track: LLVM Toolchain devroom
- Room: K.3.201
- Day: Sunday
- Start: 16:00
- End: 16:05
The convergent
function attribute has been in LLVM for some time now to model restrictions e.g. on barrier intrinsics for GPUs. Recently, we've become aware of some additional restrictions that are required for the arguments of certain intrinsics in GPU code. The use of the convergent
attribute on function parameters has been proposed for this purpose.
Speakers
Nicolai Hähnle |