[all-commits] [llvm/llvm-project] 8becc6: [MLIR][Python] Add method for getting the live ope...

[John Demme via All-commits]

  Branch: refs/heads/users/teqdruid/mlir/python-liveobjects
  Home:   https://github.com/llvm/llvm-project
  Commit: 8becc6ac237972ba9e9f1ccebf97362d87034348
      https://github.com/llvm/llvm-project/commit/8becc6ac237972ba9e9f1ccebf97362d87034348
  Author: John Demme <john.demme at microsoft.com>
  Date:   2024-01-19 (Fri, 19 Jan 2024)

  Changed paths:
    M mlir/lib/Bindings/Python/IRCore.cpp
    M mlir/lib/Bindings/Python/IRModule.h
    M mlir/python/mlir/_mlir_libs/_mlir/ir.pyi
    M mlir/test/python/ir/module.py

  Log Message:
  -----------
  [MLIR][Python] Add method for getting the live operation objects

Currently, a method exists to get the count of the operation objects
which are still alive. This helps for sanity checking, but isn't
terribly useful for debugging. This new method returns the actual
operation objects which are still alive.

This allows Python code like the following:

```
    gc.collect()
    live_ops = ir.Context.current._get_live_operation_objects()
    for op in live_ops:
      print(f"Warning: {op} is still live. Referrers:")
      for referrer in gc.get_referrers(op)[0]:
        print(f"  {referrer}")
```