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[HLSL][Matrix] Add `half` type overloads to `mul` and exercise them (#185506)

PR #184882 was missing `half` type-specific overloads for `mul`. 
This PR introduces `half` type-specific overloads for `mul` and
additional codegen tests for the half type.
Also added f16 tests for the lowering of llvm.matrix.multiply.

The offload test suite already has a `mul.fp16` test for exercising half
types at runtime, so no change is needed there.

Assisted-by: claude-opus-4.6

Use GenericConfigService for catalog plugin

[HLSL] Fix intrinsics header file 16 bit attribute macro to use version 6.2 (#185757)

There have been a couple builtins declared in a header file that specify
16 bit availability for shader model 6.0.
This is incorrect, it should be 6.2.
This bug was propagated for many of the waveops, and should be
corrected.

Fixes https://github.com/llvm/llvm-project/issues/185756

[LegalizeTypes] Emit FSHL/FSHR from ExpandShiftByConstant when Legal. (#180888)

This avoids needing to combine the SHL/SHR/OR pattern later.
    
This improves code quality on RISC-V where our slx/srx instructions
clobber the destination register but we don't have an immediate form.
We can't recover the original direction from the SHL/SHR/OR pattern
and we can't commute it during the TwoAddressInstruction pass like X86
due to the shift amount being in a register.

net/dpdk: update to latest LTS release, 25.11.0, adopt (+)

Tested on:      aarch64, amd64
Release notes:  http://doc.dpdk.org/guides/rel_notes/release_25_11.html
Approved by:    Bruce Richardson (former maintainer)

Add build requirement

Revert "[Clang][UnsafeBufferUsage] Warn about two-arg string_view constructors. (#180471)" (#185692)

This reverts commit 75b2ea57d5f4a5ae0de1b3ca1ca7eec464811b45.
Makes clang assert, see:
https://github.com/llvm/llvm-project/pull/180471#issuecomment-4033081814

   Fix various typos, mainly in comments.

   Prepare for upcoming poppler update.

   Changes shielded by preprocessor conditionals, so this can go in
   before the poppler update.

   (math/R) Trying to fix PLIST on Darwin

[lldb] Make date test handle host-target time difference (#185759)

It seems there may be a formatter bug when there's a time zone
difference between the target machine being debugged, and the host the
debugger is running on.

build: adjust LLDB and clang library naming on Windows (#185084)

Ensure that use of the GNU driver does not change the library name on
Windows. We would check the build tools being MSVC rather than targeting
Windows to select the output name.

Fixes

Address review

Fix tests

Fixes

Lint

Fix tests

`AlertClassConfig` on top of everything

mypy

Fixes

Alerts mypy

base.py mypy

Alert services mypy

Alert sources mypy

Alert.instance

[X86] Fix assertion when lowering FP_ROUND (#185562)

443ce5569ee9854cfef1139cf6b9cf05165e0902 caused us to start hitting
assertions with non-standard vector widths (<3 x float>) in this case
now that node types are actually enforced. There was a place in
X86ISelLowering.cpp where we just passed along a 64-bit integer whereas
other places constructing a CVTPS2PH node specifically construct a new
integer.

[lldb] Consolidating platform support checks in tests. (#184656)

Moving the platform support check into
`lldb/unittests/TestingSupport/TestUtilities.h` so it can be reused
across tests.

Also skipping 'VariablesTest' cases that load a core dump if the
platform is not supported.

   sysctl(7): fix kernel parameter name: s/UVHMIST/UVMHIST/.

Move alert class name to AlertClassConfig