[all-commits] [llvm/llvm-project] 66580f: [mlir][Transforms][NFC] Dialect Conversion: Keep `...

[Matthias Springer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 66580f77b826e71a9727f1d6287bec6a6101f620
      https://github.com/llvm/llvm-project/commit/66580f77b826e71a9727f1d6287bec6a6101f620
  Author: Matthias Springer <me at m-sp.org>
  Date:   2025-06-18 (Wed, 18 Jun 2025)

  Changed paths:
    M mlir/lib/Transforms/Utils/DialectConversion.cpp

  Log Message:
  -----------
  [mlir][Transforms][NFC] Dialect Conversion: Keep `unresolvedMaterializations` up to date (#144254)

`unresolvedMaterializations` is a mapping from
`UnrealizedConversionCastOp` to `UnresolvedMaterializationRewrite`. This
mapping is needed to find the correct type converter for an unresolved
materialization.

With this commit, `unresolvedMaterializations` is updated immediately
when an op is being erased. This also cleans up the code base a bit:
`SingleEraseRewriter` is now used only during the "cleanup" phase and no
longer needed as a field of `ConversionRewriterImpl`.

This commit is in preparation of the One-Shot Dialect Conversion
refactoring: `allowPatternRollback = false` will in the future trigger
immediate materialization of all IR changes.



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