[qt/clang/llvm-project]: Summary of bulk changes made

Git repository change summary for qt/clang/llvm-project
Pushed by mirror-service into branch 'upstream/users/Men-cotton/mlir/preserve-unknown-function-metadata-on-import'.
Changed from 668e41a707fb1d698edb94f8e5fa65ae98383026 to 82d818b02a9b3abdb0a402afab021e90ef64fff1
Acknowledgement was received that this change introduces only existing code that has been pushed to another public open source repository.

This change contains the following new commits:

Git commit ecb50ab04f9b11a71fb672e18060d557d9fa9343 by GitHub (on behalf of Akimasa Watanuki) on 01/08/2026 at 13:05..
[MLIR][LLVM] Reject distinct generic metadata on import (#212455)

Reject distinct nodes when converting generic LLVM metadata into LLVM
dialect attributes because `MDNodeAttr` cannot preserve node identity.
Apply the policy recursively so top-level and nested nodes use the
existing unsupported-metadata failure path while finite acyclic uniqued
nodes remain importable.
https://invent.kde.org/qt/clang/llvm-project/-/commit/ecb50ab04f9b11a71fb672e18060d557d9fa9343

Git commit 610a3105af18f5efd127d2eaa1e4633de830b593 by GitHub (on behalf of Akimasa Watanuki) on 01/08/2026 at 13:08..
[MLIR][LLVM] Share LLVM metadata attribute translation (#203016)

Share LLVM dialect metadata materialization through `ModuleTranslation`
so named metadata and metadata-as-value lowering use one conversion
path. Resolve metadata symbol references to functions, globals, aliases,
and ifuncs, and diagnose malformed required metadata before lowering.

Rename `MDFuncAttr` to `MDGlobalValueAttr` to reflect its support for
symbol-backed global values.
https://invent.kde.org/qt/clang/llvm-project/-/commit/610a3105af18f5efd127d2eaa1e4633de830b593

Git commit c938d3b85fbed82781c6054e732efff72f3a875e by mencotton on 01/08/2026 at 13:43..
[MLIR][LLVM] Preserve global value metadata operands on import

Import global value references inside LLVM metadata operands as LLVM dialect metadata symbol-reference attributes. Add llvm.read_register import coverage for function, global, alias, and nameless-global metadata operands.
https://invent.kde.org/qt/clang/llvm-project/-/commit/c938d3b85fbed82781c6054e732efff72f3a875e

Git commit 396eb66627f4f586cfb0a5d7ce77e124e145b872 by mencotton on 01/08/2026 at 13:43..
[MLIR][LLVM] Add function metadata to LLVMFuncOp

Add a generic LLVM dialect carrier for LLVM IR function metadata on LLVMFuncOp.
Represent attachments as an ordered list so repeated metadata kinds, such as
multiple type metadata attachments, can be preserved while keeping metadata names
language-agnostic.
https://invent.kde.org/qt/clang/llvm-project/-/commit/396eb66627f4f586cfb0a5d7ce77e124e145b872

Git commit 1d870383756378960f3ef4ade643e881f94e7197 by mencotton on 01/08/2026 at 13:43..
[MLIR][LLVM] Translate LLVMFuncOp function metadata

Materialize LLVMFuncOp function_metadata through ModuleTranslation metadata conversion. Attach function metadata after module-level symbols are mapped so metadata references to functions, globals, aliases, and ifuncs can be resolved.
https://invent.kde.org/qt/clang/llvm-project/-/commit/1d870383756378960f3ef4ade643e881f94e7197

Git commit 82d818b02a9b3abdb0a402afab021e90ef64fff1 by mencotton on 01/08/2026 at 13:44..
[MLIR][LLVM] Preserve unknown function metadata on import

Import representable non-debug function metadata without a kind-specific
dialect conversion into `LLVMFuncOp` `function_metadata`. Preserve repeated
metadata kinds through the generic carrier so LLVM IR import and export can
round-trip the supported generic metadata subset.

Warn and drop attachments outside that subset while continuing to import the
function.
https://invent.kde.org/qt/clang/llvm-project/-/commit/82d818b02a9b3abdb0a402afab021e90ef64fff1