Differential Revision: https://reviews.llvm.org/D138617

It's a new syscall similar to epoll_pwait.
Add a similar interceptor for it and add synchronization
annotations in epoll_wait* syscall wrappers.
Testing this is problematic b/c it's not present in glibc
and the syscall itself may not be supported by the kernel.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D138574

Windows computeHostNumPhysicalCores is defined by Threading.cpp. Leave it
unchanged.

This reverts commit 9969ceb3.

On Windows:

lld-link: error: undefined symbol: int __cdecl computeHostNumPhysicalCores(void)
>>> referenced by LLVMSupport.lib(Support.Host.obj):(int __cdecl llvm::sys::getHostNumPhysicalCores(void))

Recentlyin 4b6b2487, llvm::Optional's hasValue method was removed as
described in
https://discourse.llvm.org/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor
This breaks InlineAdvisor and ModelUnderTrainingRunner. This patch fixes
them by changing the method to has_value, which hasValue was evaluating
to before.

Differential Revision: https://reviews.llvm.org/D138635

So we have the opportunity to fold splat into .vx instruction as what
D101138 has done. If failed, we can select zero-stride vector load
again.

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D138101

Add a test that splat can't be folded.

Reviewed By: pcwang-thead

Differential Revision: https://reviews.llvm.org/D138543

This reverts commit 6eee66d1.

It breaks builds, see https://lab.llvm.org/buildbot/#/builders/61/builds/35742

Differential Revision: https://reviews.llvm.org/D138633

[LoongArch] Diagnose the behavior of reading and writing registers that do not conform to the hardware register size

When reading or writing a register that does not conform to the size of a
hardware register, an error message is generated instead of a compiler crash.

Differential Revision: https://reviews.llvm.org/D138008

Differential Revision: https://reviews.llvm.org/D138547

Use the CMake rules of unittest libraries via `add_subdirectory()`
when using standalone builds, similarly to how e.g. Clang does that.
Besides making things more consistent, I hope this also unblocks D137035
and effectively we'll be able to simplify things further and have LLVM
semi-automatically include gtest support for us in the future.

Differential Revision: https://reviews.llvm.org/D138573

Differential Revision: https://reviews.llvm.org/D138616

This patch deprecates Optional::getPointer.  Note that I've converted
all known occurrences of X.getPointer() to &*X on Nov 21, 2022 in
commit 1f914944.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

Differential Revision: https://reviews.llvm.org/D138621

I've migrated all known uses of NoneType to std::nullopt_t.  This
patch deprecates NoneType.

I'm using "typedef" instead of "using" because somehow
"[[deprecated]]" and "using" do not seem to get along.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

Differential Revision: https://reviews.llvm.org/D138623

The attribute tells the operator to handle symmetric structures for 2D tensors.
By default, the operator assumes the input tensor is not symmetric.

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D138230

Initialisation Guard Variables should take their DLL storage class
from the guarded variable. Otherwise, there will be a link error if
the compiler inlines a reference to the guard variable into another
module but that guard variable is not exported from the defining
module.

This is required for platforms such as PlayStation and
windows-itanium, that are aiming for source compatibility with MSVC
w.r.t. dllimport/export annotations, given Clang's existing design
which allows for inlining of a dllimport function as long as all the
variables/functions referenced are also marked dllimport.

A similar change exists for the MSVC ABI:
https://reviews.llvm.org/D4136.

I have added a run test for windows-itanium for this issue to the
build recipe: https://reviews.llvm.org/D88124.

Differential Revision: https://reviews.llvm.org/D138463

These perform exact multiplication and return the high half as a second
result.

Also factor out common code shared between 'extended binary ops'.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D138624

Use helper functions. Reuse array element attributes.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D138609

This patch fixes:

  lldb/source/Plugins/Instruction/RISCV/EmulateInstructionRISCV.cpp:105:18:
  warning: comparison of unsigned expression in ‘>= 0’ is always true
  [-Wtype-limits]

Reviewed By: ldionne, #libc

Spies: Eugene.Zelenko, aheejin, libcxx-commits, xazax.hun

Differential Revision: https://reviews.llvm.org/D137804

This patch removes methods that I deprecated on August, 2022 in
commits b5f8d42e and
eeac9e92.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

This patch replaces those occurrences of NoneType that would trigger
an error if the definition of NoneType were missing in None.h.

To keep this patch focused, I am deliberately not replacing None with
std::nullopt in this patch or updating comments.  They will be
addressed in subsequent patches.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

Differential Revision: https://reviews.llvm.org/D138539

This patch add the instructions of Zcd extension.

Zcd is a subset of C Ext which include the double-precision floating-point instructions (c.fld, c.fldsp, c.fsd, c.fsdsp).

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D134177