[all-commits] [llvm/llvm-project] 8067ce: [MLIR] Introduce generic visitors.

[Rahul Joshi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8067ced144a213574b6c8cb4c15aba276d5cf906
      https://github.com/llvm/llvm-project/commit/8067ced144a213574b6c8cb4c15aba276d5cf906
  Author: Rahul Joshi <jurahul at google.com>
  Date:   2022-01-14 (Fri, 14 Jan 2022)

  Changed paths:
    M mlir/include/mlir/IR/Operation.h
    M mlir/include/mlir/IR/Visitors.h
    M mlir/lib/IR/Visitors.cpp
    A mlir/test/IR/generic-visitors-interrupt.mlir
    A mlir/test/IR/generic-visitors.mlir
    M mlir/test/lib/IR/CMakeLists.txt
    A mlir/test/lib/IR/TestVisitorsGeneric.cpp
    M mlir/tools/mlir-opt/mlir-opt.cpp

  Log Message:
  -----------
  [MLIR] Introduce generic visitors.

- Generic visitors invoke operation callbacks before/in-between/after visiting the regions
  attached to an operation and use a `WalkStage` to indicate which regions have been
  visited.
- This can be useful for cases where we need to visit the operation in between visiting
  regions attached to the operation.

Differential Revision: https://reviews.llvm.org/D116230