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 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 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 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 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 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 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 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

These intrinsics are required by Linux [1].

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/loongarch/include/asm/loongarch.h#n240

Differential Revision: https://reviews.llvm.org/D139612

To fix "PerfJITEventListener.cpp:208:32: warning: missing field 'Version' initializer [-Wmissing-field-initializers]"

Reviewed By: ezhulenev

Differential Revision: https://reviews.llvm.org/D139754

This reverts commit bcc4470b.

This reverts commit 3e3ae76d.

Fix syscall clone argument passing order, also `call fn(arg)` should
return, change `jr $a5`(jirl $zero, $a5, 0) to `jirl $ra, $a5, 0`.

Reviewed By: SixWeining

Differential Revision: https://reviews.llvm.org/D139619

Enable safestack on loongarch64.

Some test cases will fail on loongarch, it will be fixed in glibc,
Links: https://sourceware.org/pipermail/libc-alpha/2022-November/143641.html

Reviewed By: #sanitizers, SixWeining, vitalybuka

Differential Revision: https://reviews.llvm.org/D139494

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

Add testcases calling macros to the implemented privileged intrinsics
as discussed in D139288. The intrinsics involved include ibar, dbar,
break, syscall, and CRC check intrinsics.

Differential Revision: https://reviews.llvm.org/D139397

Add a link to an in-progress patch.

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

Based on experiments this does better with target small GEMM kernels.

Reviewed By: jrbyrnes

Differential Revision: https://reviews.llvm.org/D139227

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 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 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

Extend D139688 with the signed version of the extended multiplication
op. Add conversion to the SPIR-V and LLVM dialects.

This was originally proposed in:
https://discourse.llvm.org/t/rfc-arith-add-extended-multiplication-ops/66869.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D139743

Differential Revision: https://reviews.llvm.org/D122761

Wraps a long line to 80 columns.

bswap is an unary operation.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D139751

The flags, initialization of the flags, and the getter methods for
features defined in RISCV.td can be generated by TableGen.

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D139746

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D139744

Adds a clang-tidy check for the incorrect use of `empty()` on a
container when the result of the call is ignored.

Authored-by: Abraham Corea Diaz <abrahamcd@google.com>
Co-authored-by: Denis Nikitin <denik@google.com>

Reviewed By: cjdb

Differential Revision: https://reviews.llvm.org/D128372

Use the same approach as used in libunwind/include/unwind_arm_ehabi.h
(D89570) and GCC's unwind-arm-common.h, so that _Unwind_Exception can be
used both with and without the struct tag.

Fixes a build failure in libcxxabi/test/forced_unwind1.pass.cpp.

Reviewed By: danielkiss

Differential Revision: https://reviews.llvm.org/D139503

Android devices frequently don't have enough memory to run this test.

e.g. On the API 33 x86-64 emulator with 2GiB RAM, the test triggers the
OOM Killer, the device reboots, and then `adb shell` exits with status
0 and no output.

Reviewed By: danalbert, #libc, Mordante

Differential Revision: https://reviews.llvm.org/D139502

The current Android headers don't appear to work with modules. We may
want to fix them eventually.

Reviewed By: #libc, Mordante

Differential Revision: https://reviews.llvm.org/D139498

__ANDROID__ is a built-in compiler macro, but __BIONIC__ is defined by
the libc header.

Reviewed By: #libc_abi, compnerd

Differential Revision: https://reviews.llvm.org/D137128

The test remove-undef-fragment.ll fails on the PPC bots. I've disabled the test
everywhere except X86 to allow for the investigation of the issue.

Remove the double 'the' in the comment for 'getInsertionBlock()'.

Reviewed By: jpienaar, rriddle

Differential Revision: https://reviews.llvm.org/D139605

Add conversion to the SPIR-V and LLVM dialects.

This was originally proposed in:
https://discourse.llvm.org/t/rfc-arith-add-extended-multiplication-ops/66869.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D139688

This is a class intended to improve errno handling for internal
functions by allowing functions to return their result and error status
instead of setting errno. This specific class will be used for
strtointeger and (in a followup patch) strtofloat.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D133163

Similar to dominance reasoning, we cannot use CFG reachability if the
instructions might be executed by different threads. A follow up will
improve our sensitivity for situations when it is OK to use graph
reasoning.

This reverts commit c9a6713b.

Causes crashes, see D136554.