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

Git repository change summary for qt/clang/llvm
Pushed by mirror-service into branch 'upstream/release/23.x'.
Changed from 2ab167b0bed0fc2464b870955122546e1893f33a to 86b9476d9d2b8782d32007b61dac0cdaac56d1f9
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 af4e527f138bbdf7dd298b5177006e82a3c47591 by llvmbot (on behalf of Trung Nguyen) on 25/07/2026 at 22:07..
[ARM] Fix chkstk definition (#210940)

(cherry picked from commit 77981e39b5fa26ab43a3a3611fbb247321e33d78)
https://invent.kde.org/qt/clang/llvm/-/commit/af4e527f138bbdf7dd298b5177006e82a3c47591

Git commit c7c350e2ce28bda3067ee30eb19007d724201d19 by Tobias Hieta (on behalf of Tom Stellard) on 26/07/2026 at 18:16..
workflows/release-documentation: Fix variable name typo (#211729)

(cherry picked from commit ae0f00de4ce82fb933c326980464c8cefb4e0029)
https://invent.kde.org/qt/clang/llvm/-/commit/c7c350e2ce28bda3067ee30eb19007d724201d19

Git commit 772bb63fd348d3013bf74a48c73df5267d8a44a5 by Tobias Hieta (on behalf of Tom Stellard) on 26/07/2026 at 18:17..
workflows/relase-tasks: Fix variable name typo (#211732)

(cherry picked from commit bab258ae1eaa56cbdc86b19f8063be612e1e4795)
https://invent.kde.org/qt/clang/llvm/-/commit/772bb63fd348d3013bf74a48c73df5267d8a44a5

Git commit e0743f50f95b829d08c869f510fd50e12d92d63a by Tobias Hieta (on behalf of Tom Stellard) on 26/07/2026 at 18:19..
workflows/libclang-abi-tests: Fix missing environment variable (#211959)

This was accidentally removed in
f6af6cedfd2fa731bf323608116d373379838b9a.

(cherry picked from commit 2ad69983d8b72d8a665a2552aac15517fe0cb351)
https://invent.kde.org/qt/clang/llvm/-/commit/e0743f50f95b829d08c869f510fd50e12d92d63a

Git commit 86b9476d9d2b8782d32007b61dac0cdaac56d1f9 by Tobias Hieta (on behalf of Balazs Benics) on 26/07/2026 at 18:20..
Revert "[analyzer] Model strchr/strrchr/memchr/strstr/strpbrk/strchrnul (#207267)"

This reverts commit a34cb573eae65f48f0e51147289e042a86b55d16.

This feature caused some issues (#209905), so the best course of
action is to postpone it to clang-24 and revert from this branch.
The #210154 tried to fix the surfaced issue, and considered to nominate
it for backport in #211832, but ultimately we had to revert it from
main in #211857 - this confirms that probably the best action is to
revert the half-baked feature from the release branch.

This means that #203260 won't be fixed in clang-23, and that's fine.
https://invent.kde.org/qt/clang/llvm/-/commit/86b9476d9d2b8782d32007b61dac0cdaac56d1f9