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Author SHA1 Message Date
Diego Caballero 71a86245ca [mlir] Extend Operation visitor with pre-order traversal 
This patch extends the Region, Block and Operation visitors to also support pre-order walks.
We introduce a new template argument that dictates the walk order (only pre-order and
post-order are supported for now). The default order for Regions, Blocks and Operations is
post-order. Mixed orders (e.g., Region/Block pre-order + Operation post-order) could easily
be implemented, as shown in NumberOfExecutions.cpp.

Reviewed By: rriddle, frgossen, bondhugula

Differential Revision: https://reviews.llvm.org/D97217
 2021-03-06 00:02:20 +02:00
Eugene Zhulenev bb0d5f767d [mlir] Add NumberOfExecutions analysis + update RegionBranchOpInterface interface to query number of region invocations 
Implements RFC discussed in: https://llvm.discourse.group/t/rfc-operationinstancesinterface-or-any-better-name/2158/10

Reviewed By: silvas, ftynse, rriddle

Differential Revision: https://reviews.llvm.org/D90922
 2020-11-11 01:43:17 -08:00