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[alpha.webkit.UncountedCallArgsChecker] Ignore methods of WTF String classes. (#90704)

[clang-tidy] Relax readability-const-return-type (#90560)

From now readability-const-return-type won't provide warnings for
returning const types, where const is not on top level. In such case
const there is a performance issue, but not a readability.

Closes #73270

[clang-tidy] Ignore casts from void to void in bugprone-casting-through-void (#90566)

Improved bugprone-casting-through-void check by ignoring casts where
source is already a void pointer, making middle void pointer casts
bug-free.

Closes #87069

[NFC][clang-tidy] update check list document (#90813)

[RISCV] Avoid using x7/t2 for indirect branches which need landing pad. (#68292)

When Zicfilp enabled, this avoids selecting indirect jumps to PseudoBRIND/PseudoCALLIndirect/PseudoTAILIndirect, since they may uses X7 as rs1 and be identified as a software guarded jump. There is an another PR #66762 to use software guarded jump for jumptable branch.

[NFC] Reduce copies created of ConstantRange when getting ConstantRangeAttributes (#90335)

Think that it can be good to reduce the number of copies created when
working with ConstantRangeAttributes.

[𝘀𝗽𝗿] initial version

Created using spr 1.3.4

[𝘀𝗽𝗿] changes to main this commit is based on

Created using spr 1.3.4

[skip ci]

[BOLT][NFC] Add BOLTReserved to BinaryContext (#90766)

Use BOLTReserved to track binary space preallocated for BOLT.

[𝘀𝗽𝗿] changes to main this commit is based on

Created using spr 1.3.4

[skip ci]

[𝘀𝗽𝗿] initial version

Created using spr 1.3.4

[𝘀𝗽𝗿] initial version

Created using spr 1.3.4

[𝘀𝗽𝗿] changes to main this commit is based on

Created using spr 1.3.4

[skip ci]

update commit message

Created using spr 1.3.4

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.4

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Rebase and fix test

Created using spr 1.3.4

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.4

[skip ci]

Rebase and fix typo

Created using spr 1.3.4

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.4

[skip ci]

Fix mismerge and rebase on main

Created using spr 1.3.4

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.4

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[𝘀𝗽𝗿] initial version

Created using spr 1.3.4

[InterleavedLoadCombine] Bail out on non-byte-sized vector element type (#90705)

Vectors are always tightly packed, and elements of non-byte-sized
usually do not have a well-defined (byte) offset.

Fixes https://github.com/llvm/llvm-project/issues/90695.

Triple::normalize: Use none as OS for XX-none-ABI (#89638)

When parsing a 3-component triple, after we determine Arch and Env, if
the middle component is "none", treat it as OS instead of Vendor.

See:
https://discourse.llvm.org/t/rfc-baremetal-target-triple-normalization/78524
Fixes: #89582.

[WebAssembly] Disable reference types in generic CPU (#90792)

#80923 newly enabled multivalue and reference-types in the generic CPU.
But enabling reference-types ended up breaking up Wasm's Chromium CI
(https://chromium-review.googlesource.com/c/emscripten-releases/+/5500231)
because the way the table index is encoded is different from MVP (u32)
vs. reference-types (LEB), which caused different encodings for
`call_indirect`.

And Chromium CI's and Emscripten's minimum required node version is v16,
which does not yet support reference-types, which does not recognize
that table index encoding. reference-types is first supported in node
v17.2.

We knew the current minimum required node for Emscripten (v16) did not
support reference-types, but thought it was fine because unless you
explicitly use `__funcref` or `__externref` things would be fine, and if
you want to use them explicitly, you would have a newer node. But it
turned out it also affected the encoding of `call_indirect`.

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[clang codegen] Fix MS ABI detection of user-provided constructors. (#90151)

In the context of determining whether a class counts as an "aggregate",
a constructor template counts as a user-provided constructor.

Fixes #86384

(cherry picked from commit 3ab4ae9e58c09dfd8203547ba8916f3458a0a481)

Rebased on upstream main.

Created using spr 1.3.6-beta.1

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.6-beta.1

[skip ci]

Rebased on upstream main.

Created using spr 1.3.6-beta.1

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.6-beta.1

[skip ci]