This reverts commit e33243c9 but
keeps the added test case and also adds another test case.

Fixes #59417.

Differential Revision: https://reviews.llvm.org/D139760

The option does not change IR but affect object file generation. Without a
backend option the option is a no-op for in-process ThinLTO.

The problem is known and there are many options similar to -fstack-size-section.
That said, -fstack-size-section has relatively wider adoption, so it probably
makes sense to have custom code for it.

Close https://github.com/llvm/llvm-project/issues/59424

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D139769

As a cornerstone of MLIR, this deserves more than the
current few lines.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D139689

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

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

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