[all-commits] [llvm/llvm-project] ee7f51: Fix recursive DI variant part (#225373)

[purnima shrivastava via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ee7f51a7d00f05662716d20e451c9c25c0fe79ee
      https://github.com/llvm/llvm-project/commit/ee7f51a7d00f05662716d20e451c9c25c0fe79ee
  Author: purnima shrivastava <purnimashrivastava05 at gmail.com>
  Date:   2026-09-22 (Tue, 22 Sep 2026)

  Changed paths:
    M mlir/lib/Target/LLVMIR/DebugTranslation.cpp
    M mlir/test/Target/LLVMIR/llvmir-debug.mlir

  Log Message:
  -----------
  Fix recursive DI variant part (#225373)

`mlir::translateModuleToLLVMIR` could leave recursive `DICompositeType`
metadata unresolved when the composite used `DW_TAG_variant_part`.

`DW_TAG_variant_part` was not emitted as a distinct `DICompositeType`,
unlike other recursive composite type tags. This change adds it to the
distinct path and adds a regression test covering the recursive
variant-part case.

Testing:

* `mlir/test/Target/LLVMIR/llvmir-debug.mlir`
* `ninja -C build check-mlir`

Fixes: #225151

Co-authored-by: Purnima Shrivastava <purnimashrivastava05 at .com>



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