Alex Zinenko 6841e6afba [mlir] support max/min lower/upper bounds in affine.parallel ... This enables to express more complex parallel loops in the affine framework, for example, in cases of tiling by sizes not dividing loop trip counts perfectly or inner wavefront parallelism, among others. One can't use affine.max/min and supply values to the nested loop bounds since the results of such affine.max/min operations aren't valid symbols. Making them valid symbols isn't an option since they would introduce selection trees into memref subscript arithmetic as an unintended and undesired consequence. Also add support for converting such loops to SCF. Drop some API that isn't used in the core repo from AffineParallelOp since its semantics becomes ambiguous in presence of max/min bounds. Loop normalization is currently unavailable for such loops. Depends On D101171 Reviewed By: bondhugula Differential Revision: https://reviews.llvm.org/D101172		2021-04-29 13:16:25 +02:00
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CMakeLists.txt	[mlir] Affine: parallelize affine loops with reductions	2021-04-29 13:16:24 +02:00
Utils.cpp	[mlir] support max/min lower/upper bounds in affine.parallel	2021-04-29 13:16:25 +02:00