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

Git repository change summary for qt/clang/llvm
Pushed by mirror-service into branch 'upstream/users/abhinavgaba/attach-maps-in-mappers-3'.
Changed from 9b175e28e59b07bdb185eab2275c504e2f8a9236 to ddc1f496513e81bd5c47864f84ebf1644ff8de30
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 96e9d8129ec84802a4023040c98cb8671a9e1488 by Abhinav Gaba on 24/07/2026 at 23:16..
[OpenMP][test] Address review: restructure present-check mapper tests

Move the present-check pointee tests into this PR (PR1) with RUN lines and
FIXME/EXPECTED comments matching the current pre-feature behavior, per review:
  - mapper_map_present_ptee.c
  - mapper_map_mbr_ptee_then_present_mbr_ptee.c
  - mapper_map_mbr_then_present_mbr_ptee.c
Later PRs update these checks as the behavior becomes correct. Also add
mapper_map_always_from.c showing the current (pre-propagation) ALWAYS behavior
(s.y = 0), which the ALWAYS/DELETE/CLOSE propagation PR flips to s.y = 111.

Also:
  - mapper_map_ptee_then_present_absent_mbr.c: reword the FIXME to just say
    PRESENT should be propagated to the s.x member entry (drop the PTR_AND_OBJ
    wording, which belongs in the propagation PR).
  - mapper_target_update_present_ptee.c: add OOB CHECK/EXPECTED lines and a
    subset-transfer FIXME; use fprintf consistently.
  - target_map_nested_ptr_member_mapper_codegen.cpp: add the OpenMP 6.0 RUN
    line now (CHECK-60 currently identical to CHECK, with a FIXME) so the
    propagation PR only needs to flip the pointee map-type values.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
https://invent.kde.org/qt/clang/llvm/-/commit/96e9d8129ec84802a4023040c98cb8671a9e1488

Git commit abbf6ed3f223b11549ce5236f40ef6679e1d9f5a by Abhinav Gaba on 24/07/2026 at 23:16..
[OpenMP] Propagate ALWAYS/DELETE/CLOSE map-type modifiers to mapper entries

When a map clause uses a user-defined mapper, the map-type-modifying bits
(ALWAYS, DELETE, CLOSE) on the outer clause must apply to each map the mapper
inserts (OpenMP 6.0:281:34). Propagate them in emitUserDefinedMapper by OR-ing
the imported modifier bits into each pushed component, except ATTACH entries
(ATTACH|ALWAYS is reserved for attach(always) and the other bits are
meaningless for ATTACH).

PRESENT is intentionally not propagated here yet (a TODO notes it is handled in
a follow-on, since it requires distinguishing pointee entries from the struct's
own storage).

Update offload mapper_map_always_from.c to its now-correct behavior: ALWAYS
forces a member copy-back that the ref count would otherwise suppress, so s.y
reads back as 111 (it was 0 before this change).

Co-Authored-By: Claude Opus 4.8 <[email protected]>
https://invent.kde.org/qt/clang/llvm/-/commit/abbf6ed3f223b11549ce5236f40ef6679e1d9f5a

Git commit ddc1f496513e81bd5c47864f84ebf1644ff8de30 by Abhinav Gaba on 24/07/2026 at 23:16..
[OpenMP][Clang] Enable ATTACH-style maps for mappers.

Track per-entry attach-ptr info (HasAttachPtr) through mapper codegen so that
emitUserDefinedMapper does not add a new outer MEMBER_OF to pointee/combined
entries (which occupy different storage than the struct) or to ATTACH entries.
Clang and the MLIR translator populate the per-entry array in parallel with the
other MapInfosTy arrays.

Address review:
  - Rename MapSkipMemberOfArrayTy to MapHasAttachPtrArrayTy to match the
    HasAttachPtr field it backs.
  - Restructure the emitUserDefinedMapper comment into a bulleted (*)/(**)/(***)
    list keyed to the example entries.
  - Reword the Clang comments: HasAttachPtr marks pointee entries that have a
    base attach-ptr; a combined entry has a base attach-ptr if its constituents
    do; cross-reference emitUserDefinedMapper for the MEMBER_OF rationale.
  - Update the moved present-check tests to their now-correct behavior (the
    attach-style maps make the inbounds present checks pass and remove the
    "explicit extension" errors).

Co-Authored-By: Claude Opus 4.8 <[email protected]>
https://invent.kde.org/qt/clang/llvm/-/commit/ddc1f496513e81bd5c47864f84ebf1644ff8de30