Alex Zinenko 08778d8c4f [mlir][GPU] introduce utilities for promotion to workgroup memory ... Introduce a set of function that promote a memref argument of a `gpu.func` to workgroup memory using memory attribution. The promotion boils down to additional loops performing the copy from the original argument to the attributed memory in the beginning of the function, and back at the end of the function using all available threads. The loop bounds are specified so as to adapt to any size of the workgroup. These utilities are intended to compose with other existing utilities (loop coalescing and tiling) in cases where the distribution of work across threads is uneven, e.g. copying a 2D memref with only the threads along the "x" dimension. Similarly, specialization of the kernel to specific launch sizes should be implemented as a separate pass combining constant propagation and canonicalization. Introduce a simple attribute-driven pass to test the promotion transformation since we don't have a heuristic at the moment. Differential revision: https://reviews.llvm.org/D71904		2020-01-09 10:06:00 +01:00
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mlir	[mlir][GPU] introduce utilities for promotion to workgroup memory	2020-01-09 10:06:00 +01:00
mlir-c	Adjust License.txt file to use the LLVM license	2019-12-23 15:33:37 -08:00