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InstCombine: Handle multiple use fneg(fabs(x)) in SimplifyDemandedFPClass

This ends up being smarter than the single use case, so these should
be merged at some point.

Fix typo in MSVCCompatibility.rst (#176057)

[SPIRV] Improve vector legalization and type deduction (#175067)

This patch adds support for scalarizing vector loads in the legalizer
and
implements legalization for the spv_const_composite intrinsic. It also
refactors stack temporary creation for vector operations to ensure
correct
SPIR-V types are assigned. Additionally, type deduction in the
PostLegalizer is improved to handle GEP and Load instructions.

Fixes https://github.com/llvm/llvm-project/issues/170534

[LifetimeSafety] Handle GSL pointer construction from raw pointers (#175963)

[openmp] Add support for arm64ec to libomp

This patch adds arm64ec support to libomp.
Note that this support isn't entirely usable on Windows hosts as libomp
requires LLVM_PER_TARGET_RUNTIME_DIR=On for to work correctly when
multiple runtimes are built, which is unsupported on Windows. A
following patch will add arm64x support to the build to rectify this.

InstCombine: Handle multiple uses fabs in SimplifyDemandedFPClass

[lldb-dap] Move targetId and debuggerId into a session property (#175930)

This makes it clear the fields required for attaching to an existing
debug session.

It also makes it easier to check mutually exclusive fields required to
attach.

[flang][NFC] fix typo in mlirTypeToIntrinsicFortran (#175762)

Fix pretty printing of complex function types in the error messages when
no runtime function is found to implement some intrinsic in lowering.

[X86][GISEL] Enable Combines for constants and undef (#175711)

This patch supports combines for constants and undef. Primary motive is
to fold muls and remove undef chains from final outputs.

[libc++] Provide flag for RUNTIMES_USE_LIBC=llvm-libc (#174967)

There was no flag added for llvm-libc when picolibc and newlib were
provided in https://github.com/llvm/llvm-project/pull/147956 - the
missing flag breaks libc++ iostream support now because this check
https://github.com/llvm/llvm-project/blob/9a8421fa6191d2e1047e3dc8c72a22fa810f9aee/libcxx/include/__config#L719
fails unless an LLVM libc header is included.

[LifetimeSafety] Test lifetime safety on stmt-local analysis test suite

[CFIInstrInserter] Add `dump` method to `CSRSavedLocation`. (#176054)

This is to reduce the diff for the future commit where we plan to use
this for reporting errors.

[CFIInstrInserter][NFC] Remove useless `#define`. (#176051)

[CFIInstrInserter] Fix a test. (#176048)

In the test `cfi-multiple-locations.mir` the block `bb.1` was
unreachable.

[Serialization] Remove bail-out logic in TemplateArgumentHasher

While it is correct to assign a single fixed hash to all template
arguments, it can reduce the effectiveness of lazy loading and is
not actually needed: we are allowed to ignore parts that cannot be
handled because they will be analogously ignored by all hashings.

Reviewed as part of https://github.com/llvm/llvm-project/pull/133057

[clang][LoongArch] Add support for LoongArch32

This patch adds support for LoongArch32, as introduced in
la-toolchain-conventions v1.2.

Co-authored-by: Sun Haiyong <sunhaiyong at zdbr.net>
Link: https://github.com/loongson/la-toolchain-conventions/releases/tag/releases%2Fv1.2
Link: https://gcc.gnu.org/pipermail/gcc-patches/2025-December/703312.html

[JITLink][LoongArch][NFC] Fix Call30PCRel range docs

[lld][LoongArch] Support reloc types for LA32R/LA32S (#172618)

This patch adds support for processing the relocation types introduced
in la-abi-specs v2.50.

Link: https://github.com/loongson/la-abi-specs/pull/16
Link:
https://sourceware.org/pipermail/binutils/2025-December/146091.html

[SLP]Do not throttle nodes with split parents, if any of scalars is used in more than one split nodes

If the the node to throttle is a vector node, which is used in split
node, and at least one scalar of such a node is used in many split
nodes, such vector node should be throttled. otherise there might be
wrong def-use chain, which crashes the compiler.

Fixes #175967

InstCombine: Fold known-qnan results to a literal nan

Previously we only considered fcNan to fold to qnan for canonicalizing
results, ignoring the simpler case where we know the nan is already
quiet.

InstCombine: Implement SimplifyDemandedFPClass for frexp

Address wanglei's comments

[X86] combine-pclmul.ll - add demanded elts test coverage (#176132)

Based off the equivalent instcombine test coverage - but we can now create X86ISD::PCLMULQDQ nodes in the DAG as well

Merge branch 'main' into users/rovka/alloc-vgpr-intrinsic

[BOLT] Gadget scanner: implement finer-grained --scanners option

Add separate options to enable each of the available gadget detectors.
Furthermore, add two meta-options enabling all PtrAuth scanners and all
available scanners of any type (which is only PtrAuth for now, though).

This commit renames `pacret` option to `ptrauth-pac-ret` and `pauth` to
`ptrauth-all`.

[X86] clmul.ll - add missing clmulr_i64 test coverage (#176131)

[AMDGPU] Update gfx1250 memory model for global acquire/release (#175865)

Inserts required waits around GLOBAL_INV/GLOBAL_WBINV for
agent scope and above.

InstCombine: Add baseline frexp test for SimplifyDemandedFPClass

[libomp] OpenMP 6.0: Add device trait parser

OpenMP 6.0 introduced a device trait specification language for the
environment variables OMP_AVAILABLE_DEVICES (4.3.7) and
OMP_DEFAULT_DEVICE (4.3.8).

This commit defines a grammar for that language and implements a parser
for a large part of this grammar.
It also already does the parsing of OMP_DEFAULT_DEVICE, but in a
backward compatible manner, not yet exposing the new capabilities to the
user (this will come in a follow-up commit).

[libomp] Add kmp_vector (ADT 2/2)

See rationale in the commit adding kmp_str_ref.

This commit introduces kmp_vector, a class intended primarily for small
vectors. It currently only includes methods I need at the moment, but
it's easily extensible.