Alex Zinenko fc044e8929 Introduce loop coalescing utility and a simple pass ... Multiple (perfectly) nested loops with independent bounds can be combined into a single loop and than subdivided into blocks of arbitrary size for load balancing or more efficient parallelism exploitation. However, MLIR wants to preserve the multi-dimensional multi-loop structure at higher levels of abstraction. Introduce a transformation that coalesces nested loops with independent bounds so that they can be further subdivided by tiling. PiperOrigin-RevId: 258151016		2019-07-16 13:43:44 -07:00
mlir	Introduce loop coalescing utility and a simple pass	2019-07-16 13:43:44 -07:00