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

Git repository change summary for qt/clang/llvm
Pushed by mirror-service into branch 'upstream/users/wangleiat/spr/loongarch-generate-more-pcrel-relocations-for-resolvable-sub-symbols'.
Changed from 8cb3598717defad79f08d1bb83e954d2987a3144 to 8de0e7f2986d7f17a96a898ae79a9e8bad04edda
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 13706f1c73b91f74a8a555748b68362fbb5d698f by GitHub (on behalf of Matt Arsenault) on 27/07/2026 at 05:46..
AMDGPU: Migrate misc. tests to subarch triples (#211585)
https://invent.kde.org/qt/clang/llvm/-/commit/13706f1c73b91f74a8a555748b68362fbb5d698f

Git commit 5271fd9e65fb235fedd484cfc3710679744bdf46 by GitHub (on behalf of Lang Hames) on 27/07/2026 at 06:17..
[orc-rt] Session::HandlerTag -> orc_rt_ControllerHandlerTag (#212173)

Replace the `Session::HandlerTag = void*` type alias with
orc_rt_ControllerHandlerTag. The intent is both to make this type
accessible to the C API, and to rename it to clarify its role as a tag
for handlers in the controller that are callable by the executor.
https://invent.kde.org/qt/clang/llvm/-/commit/5271fd9e65fb235fedd484cfc3710679744bdf46

Git commit 820b5cb6d9fe8feda01fbb8b86d68aea10c63130 by GitHub (on behalf of Cullen Rhodes) on 27/07/2026 at 06:37..
[AArch64] Mark ZT0 register class as non-allocatable (#211750)

ZT0 is not available for register allocation, define it with the other
non-allocatable SME register classes and avoid an unnecessary pressure
set.

Assisted-by: codex
https://invent.kde.org/qt/clang/llvm/-/commit/820b5cb6d9fe8feda01fbb8b86d68aea10c63130

Git commit ed3470ffd1222be4aa4d6f938e6ba0fae5a2fad7 by GitHub (on behalf of Fangrui Song) on 27/07/2026 at 07:21..
[ELF] Fix -Wc++11-narrowing error in addPltEntry (#212185)

PR #212161 passes the `uint8_t isPreemptible : 1` bit-field straight
into a braced-init-list slot whose parameter type is `bool`.
Older clang (<20 ?) incorrectly rejects it.

```
error: non-constant-expression cannot be narrowed from type 'uint8_t' (aka 'unsigned char') to 'bool' in initializer list [-Wc++11-narrowing]
```
https://invent.kde.org/qt/clang/llvm/-/commit/ed3470ffd1222be4aa4d6f938e6ba0fae5a2fad7

Git commit ae13fb60660e051dad593937dd9d8d0939f688d4 by wanglei on 27/07/2026 at 09:46..
[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.7

[skip ci]
https://invent.kde.org/qt/clang/llvm/-/commit/ae13fb60660e051dad593937dd9d8d0939f688d4

Git commit 8de0e7f2986d7f17a96a898ae79a9e8bad04edda by wanglei on 27/07/2026 at 09:47..
rebase an simplify

Created using spr 1.3.7
https://invent.kde.org/qt/clang/llvm/-/commit/8de0e7f2986d7f17a96a898ae79a9e8bad04edda