[all-commits] [llvm/llvm-project] 32b1f1: [mlir][spirv] Rework type extension queries (#160020)

[Jakub Kuderski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 32b1f167fbee28debc7527b939a6764575c854a4
      https://github.com/llvm/llvm-project/commit/32b1f167fbee28debc7527b939a6764575c854a4
  Author: Jakub Kuderski <jakub at nod-labs.com>
  Date:   2025-09-22 (Mon, 22 Sep 2025)

  Changed paths:
    M mlir/include/mlir/Dialect/SPIRV/IR/SPIRVTypes.h
    M mlir/lib/Dialect/SPIRV/IR/SPIRVTypes.cpp
    M mlir/test/Conversion/SCFToSPIRV/unsupported.mlir

  Log Message:
  -----------
  [mlir][spirv] Rework type extension queries (#160020)

* Fix infinite recursion with nested structs.
* Drop `::getExtensions` function from derived types, so that there's
only one entry point that queries type extensions.
* Move all extension logic to a new helper class -- this way the
`::getExtensions` functions can't diverge across concrete types and
'convenience types' like `CompositeType`.

We should also fix `::getCapabilities` in a similar way and move the
testcase to `vce-deduction.mlir`.

Issue: https://github.com/llvm/llvm-project/issues/159963



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