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

Git repository change summary for qt/clang/llvm
Pushed by mirror-service into branch 'upstream/users/vikramRH/clang_codegen_fallbak'.
Changed from b66c997367e2ca52c6736fcb3675e0a844642384 to 3318341ab7dfad79af6286146be3f91c738410a6
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 4bd1a447e136e60ea441370ac5d7b898aa4efab0 by GitHub (on behalf of Pavel Labath) on 21/07/2026 at 05:18..
[libc] Make hermetic test syscall deps linux-only (#210715)

They are only used on linux, so this matches that.

They are also only used in full build mode, but hermetic tests only work
in full build mode, so we don't need to check that here. The darwin
check is a noop as (AAIU) we don't support full_build on darwin, but
I've kept it for symmetry.
https://invent.kde.org/qt/clang/llvm/-/commit/4bd1a447e136e60ea441370ac5d7b898aa4efab0

Git commit 375231d8ea9b4f5a3a71f4afb3d76ba6e1dcefc5 by GitHub (on behalf of Pavel Labath) on 21/07/2026 at 05:19..
[libc] Add struct group_req, struct group_source_req, and related socket options (#210029)

Add definitions for struct group_req and struct group_source_req in
llvm-libc-types and wire them into <netinet/in.h>.

Also define the multicast socket options using these structs:
- MCAST_JOIN_GROUP
- MCAST_LEAVE_GROUP
- MCAST_BLOCK_SOURCE
- MCAST_UNBLOCK_SOURCE
- MCAST_JOIN_SOURCE_GROUP
- MCAST_LEAVE_SOURCE_GROUP

Add layout assertions for struct group_req and struct group_source_req
to the netinet/in.h unit test.

Assisted by Gemini.
https://invent.kde.org/qt/clang/llvm/-/commit/375231d8ea9b4f5a3a71f4afb3d76ba6e1dcefc5

Git commit 3318341ab7dfad79af6286146be3f91c738410a6 by vikhegde on 21/07/2026 at 05:22..
[CodeGen] Implement fallback path for backend NPM run
https://invent.kde.org/qt/clang/llvm/-/commit/3318341ab7dfad79af6286146be3f91c738410a6