Changes

Added libc docs to SphinxDocsBuilder.

Expand SphinxDocsBuilder to build and publish libc Sphinx docs.

Reviewed By: gkistanova, jeffbailey

Differential Revision: https://reviews.llvm.org/D126156

[lldb] Fix should_skip_simulator_test decorator

Currently simulator tests get skipped when the reported platform is
macosx rather than darwin. Update the decorator to match both.

[mlir][bufferize] Support fully dynamic layout maps in BufferResultsToOutParams

Also fixes integration of the pass into One-Shot Bufferize and adds additional test cases.

BufferResultsToOutParams can be used with "identity-layout-map" and "fully-dynamic-layout-map". "infer-layout-map" is not supported.

Differential Revision: https://reviews.llvm.org/D125636

[mlir][NvGpuToNVVM] Fix missing i4 support for nvgpu.mma.sync

This changes adds missing support for the i4 data type. Tests are added
to ensure proper lowering of an nvgpu.mma.sync operation targeting the
16x8x64xi4 and 16x8x32xi4 MMA variants in the NVVM dialect.

Differential Revision: https://reviews.llvm.org/D126092

[mlir][bufferize][NFC] Update One-Shot Bufferize pass documentation

Differential Revision: https://reviews.llvm.org/D125637

[mlir][NvGpuToNVVM] Fix byte size calculation in async copy lowering

AsyncCopyOp lowering converted "size in elements" to "size in bytes"
assuming the element type size is at least one byte. This removes
that restriction, allowing for types such as i4 and b1 to be handled
correctly.

Differential Revision: https://reviews.llvm.org/D125838

[llvm-nm][docs] Document -W and -U

Latest GNU nm (milestone: 2.39) has added -W/--no-weak and changed -U to mean
--defined-only (instead of --unicode=). The changes match our semantics.

Close #55297

Reviewed by: jhenderson, keith

Differential Revision: https://reviews.llvm.org/D126133

Add [opt] suffix to optimized stack frame in lldb-vscode

To help user identify optimized code This diff adds a "[opt]" suffix to
optimized stack frames in lldb-vscode. This provides consistent experience
as command line lldb.

It also adds a new "optimized" attribute to DAP stack frame object so that
it is easy to identify from telemetry than parsing trailing "[opt]".

Differential Revision: https://reviews.llvm.org/D126013

Show error message for optimized variables

This fixes an issue that optimized variable error message is not shown to end
users in lldb-vscode.

Differential Revision: https://reviews.llvm.org/D126014

[RISCV] Add basic fault-first load coverage for VSETVLI insertion

Simplified version of a test taken from D123581.

[PS5] Disable a test, same as PS4

Fix an unused variable warning in no-asserts build mode

[lldb] Improve formatting of dlopen error messages (NFC)

Ensure there's a space between "utility" and "function", and also makes
it easier to grep/search for "utility function".

While making this change, I also re-formatted the other dlopen error messages
(with clang-format). This fix other instances of spaces missing between words,
and makes each of these strings fit a single line, making them greppable.

Differential Revision: https://reviews.llvm.org/D126078

[MSVC, ARM64] Add __readx18 intrinsics

https://docs.microsoft.com/en-us/cpp/intrinsics/arm64-intrinsics?view=msvc-170

  unsigned char __readx18byte(unsigned long)
  unsigned short __readx18word(unsigned long)
  unsigned long __readx18dword(unsigned long)
  unsigned __int64 __readx18qword(unsigned long)

Given the lack of documentation of the intrinsics, we chose to align the offset with just
`CharUnits::One()` when calling `IRBuilderBase::CreateAlignedLoad()`

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D126024

[lldb] Specify aguments of `image list`

Register positional argument details in `CommandObjectTargetModulesList`.

I recently learned that `image list` takes a module name, but the help info
does not indicate this. With this change, `help image list` will show that it
accepts zero or more module names.

This makes it easier to get info about specific modules, without having to
find/grep through the full image list.

Reviewed By: DavidSpickett

Differential Revision: https://reviews.llvm.org/D125154

[AArch64] Add test case for pr55644. NFC

[DAGCombiner][AArch64] Don't fold (smulo x, 2) -> (saddo x, x) if VT is i2.

If the VT is i2, then 2 is really -2.

Test has not been commited yet, but diff shows the change.

Fixes PR55644.

Differential Revision: https://reviews.llvm.org/D126213

[IR] add and use pattern match specialization for sqrt intrinsic; NFC

This was included in D126190 originally, but it's
independent and a useful change for readability.

[Sanitizer][Darwin] Add SANITIZER_DRIVERKIT platform macro

[mlir][tosa] Change tosa.depthwise_conv2d's ending reshape to a collapse.

TOSAs depthwise_conv2d operation includes a reshape to include the implicit x1 dimension.

Reviewed By: rsuderman

Differential Revision: https://reviews.llvm.org/D126212

Remove `friend` classes from TypeCategoryMap

As far as I can tell, the only thing those friend classes access is the
`ValueSP` typedef.

Given that this is a map-ish class, with "Map" in its name, it doesn't
seem like a stretch to make `KeyType`, `ValueType` and `ValueSP` public.
More so when the public methods of the class have `KeyType` and
`ValueSP` arguments and clearly `ValueSP` needs to be accessed from the
outside.

`friend` complicates local reasoning about who can access private
members, which is valuable in a class like this that has every method
locking a mutex to prevent concurrent access.

Differential Revision: https://reviews.llvm.org/D126103

[libc++] Granularize parts of <type_traits>

`<type_traits>` is quite a large header, so I'll granularize it in a few steps.

Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D124755

[libc++] Always enable the ranges concepts

The ranges concepts were already available in libc++13, so we shouldn't guard them with `_LIBCPP_HAS_NO_INCOMPLETE_RANGES`.
Fixes https://github.com/llvm/llvm-project/issues/54765

Reviewed By: #libc, ldionne

Spies: ldionne, libcxx-commits

Differential Revision: https://reviews.llvm.org/D124011

[libc++] Assume that push_macro and pop_macro are available

All compilers that libc++ supports support `push_macro` and `pop_macro`. So let's remove it.

Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D126073

[libc++] Add auto to the list of required extensions in C++03

We use `auto` in C++03, so we shouldn't say that we aren't.

Reviewed By: ldionne, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D126165

[libc++] Add ranges::max_element to the synopsis and ADL-proof the __min_element_impl calls

Reviewed By: ldionne, #libc

Spies: sstefan1, libcxx-commits

Differential Revision: https://reviews.llvm.org/D126167

[gn build] Port eebc1fb772c5

[Sanitizer][Darwin] Add explanation for Apple platform macros

Differential Revision: https://reviews.llvm.org/D126229

[SLP][NFC]Improve compile time, NFC.

Builds UserIgnore list only once as a SmallDenseSet without rebuilding
it between the runs, iterate over gathers instead list of reduction ops,
do some checks in the buildTree_rec only if the corresponding containers
  are not empty.

[SVEInstrFormats] Ensure scatter instructions are named consistently.

[AArch64] Add tests with free shuffles for indexed fma variants.

The new tests contain examples where shuffles are free, because indexed
fma instructions can be used.

[mlir] Use 'native' instead of 'llvm_has_native_target' in the mlir tests

The tests actually require the target triple to match the host, rather than just having the host in the list of available targets. This change removes `llvm_has_native_target` and instead uses the `native` feature from the lit configuration.

Reviewed By: stellaraccident

Differential Revision: https://reviews.llvm.org/D126011

[libc++] Remove duplicate tests for callable concepts

This is essentially a revert of c7ad02009. Indeed, it seems that both
96dbdd75 and c7ad02009 were committed, but c7ad02009 seems to be only
an older version of 96dbdd75's tests.

[External][CUDA] Add option to test with the new driver

Upstream clang supports RDC-mode compilation through the new driver.
This patch adds an option that allows the user to configure the compilation
job to use the new driver for testing. This will allow us to optionally test the
new driver in the buildbots to track changes as we develop.

Reviewed By: tra

Differential Revision: https://reviews.llvm.org/D126231