Summary is the short one.

When performing shrinking int/fp conversions the predicate should
be created to match the original fixed length vector type so the
unused lanes don't trigger side effects.

This patch also includes related refactoring to better detect such
issues and streamline the code a little.

Differential Revision: https://reviews.llvm.org/D138351

Parsing DWARF expressions currently does not support DW_OPs that are vendor
extensions. With this change expression parsing calls into SymbolFileDWARF for
unknown opcodes, which is the semantically "closest" plugin that we have right
now. Plugins can then extend SymbolFileDWARF to add support for vendor
extensions.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D137247

Unused function since D134967

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D138493

This patch introudces the OpenMPIRBuilderConfig class which contains various
flags that are needed to lower OMP constructs to LLVM-IR. The purpose is to
keep the flags in one place so they do not have to be passed in every time.
The flags can be set optionally since some uses cases don't rely on functions
that depend on these flags.

Reviewed By: jdoerfert, tschuett

Differential Revision: https://reviews.llvm.org/D138220

This patch implements the 2022 Architecture General Data-Processing Instructions

They include:

Common Short Sequence Compression (CSSC) instructions
- scalar comparison instructions
  SMAX, SMIN, UMAX, UMIN (32/64 bits) with or without immediate
- ABS (absolute), CNT (count non-zero bits), CTZ (count trailing zeroes)
- command-line options for CSSC

Associated with these instructions in the documentation is the Range Prefetch
Memory (RPRFM) instruction, which signals to the memory system that data memory
accesses from a specified range of addresses are likely to occur in the near
future. The instruction lies in hint space, and is made unconditional.

Specs for the individual instructions can be found here:
https://developer.arm.com/documentation/ddi0602/2022-09/Base-Instructions/

contributors to this patch:
- Cullen Rhodes
- Son Tuan Vu
- Mark Murray
- Tomas Matheson
- Sam Elliott
- Ties Stuij

Reviewed By: lenary

Differential Revision: https://reviews.llvm.org/D138488

Adds FP CCs opcodes/selection logic, including src mods selection

Depends on D136591, D136448
Resolves #58326 (https://github.com/llvm/llvm-project/issues/58326)

Reviewed By: arsenm, foad

Differential Revision: https://reviews.llvm.org/D136592

If `pathname` is an empty string and the AT_EMPTY_PATH flag is specified in `flags`,
statx `pathname` argument is of type `const char *restrict`, so it should be `""`
instead of `0`.

Reviewed By: SixWeining, xen0n, xry111, lixing-star

Differential Revision: https://reviews.llvm.org/D138414

As suggested on D138129, switching rteurn of CollectBindings
function to SymbolVector.

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D138419

Enable scudo on LoongArch64 on both clang side and compiler-rt side.

Reviewed By: SixWeining

Differential Revision: https://reviews.llvm.org/D138350

Initialization of unlimited polymorphic descriptor was raising an error.
This patch sets a default size and type code for unlimited polymoprhic descriptor
that will be updated once allocated/assigned.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D138479

This is some quick debug messages for the SelectOptimize pass, adding
some information for the costs that are measured from getInstructionCost
calls, and re-using the existing optimization remarks to print some
information about if transforms were performed or not.

Differential Revision: https://reviews.llvm.org/D138108

Marking rs1 (memory offset base) as memory operand provides additional
semantic value to this operand that can be used by different tools
(e.g. llvm-exegesis).

This change does not affect neigther Isel nor assembler. However it
required some tweaks in tablegen compressed inst emmiter.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D136847

`DialectAnalysisState` is now `OneShotAnalysisState::Extension`.

This state extension mechanism is needed only for One-Shot Analysis, so it is moved from `BufferizableOpInterface.h` to `OneShotAnalysis.h`.

Extensions are now identified via TypeIDs instead of StringRefs. The API of state extensions is cleaned up and follows the same pattern as other extension mechanisms in MLIR (e.g., `transform::TransformState::Extension`).

Also delete some dead code.

Differential Revision: https://reviews.llvm.org/D135051

This change fixes a typo in a warning message.

rdar://79707705

An extractelt with a constant index which extracts an element from the
two vector operands of a select can be directly folded into a select.

extractelt (select %x, %vec1, %vec2), %const ->
select %x, %vec1[%const], %vec2[%const]

Note: the implementation currently only works for constant vector operands.

Reviewed By: foad, spatel

Differential Revision: https://reviews.llvm.org/D137934

In release mode `arc-exceptions-seh.mm` fails. It needs `-enable-objc-arc-opts=false` to skip ObjC ARC optimizations.

Reviewed By: triplef

Differential Revision: https://reviews.llvm.org/D137942

This reverts commit f50423c1.

Summary: -xcoff-traceback-table is a default option on AIX regardless of optimization and debug levels. An error of relocation for paired relocatable term is not yet supported in XCOFFObjectWriter::recordRelocation occurred when both of the -xcoff-traceback-table and -function-sections are enabled.
The root cause is that we missed to calculate the symbols difference as absolute value before adding fixups when symbol_A without the fragment set is the csect itself and symbol_B is in it.
This patch only sets the fragment for XMC_PR csects because we don't have other cases that hit this problem yet.

Reviewed By: DiggerLin, hubert.reinterpretcast

Differential Revision: https://reviews.llvm.org/D137230

This reverts commit 119cef40.

The change broke multiple builders.

Differential Revision: https://reviews.llvm.org/D138483

Pushing the `CatchRetScope` early causes cleanups for catch parameters to be emitted in the basic block of the catch handler instead of the `catchret.dest` block. This is important because the latter is not part of the catchpad and this caused code truncations due to ARC PreISel intrinsics in WinEHPrepare.

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D137939

Add missing assembler/disassembler tests for INSTID_SALU_CYCLE_2
and INSTID_SALU_CYCLE_3 which are possible arguments in S_DELAY_ALU.

Differential Revision: https://reviews.llvm.org/D138482

Avoid duplicate code by using an existing helper function to interchange
a vector based on a permutation. Address comments emerged after landing
D138119.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D138480

Dim sizes of `scf.foreach_thread` op results match the dim sizes of their respective tied shared_outs operands.

Differential Revision: https://reviews.llvm.org/D138484

Differential Revision: https://reviews.llvm.org/D138478

This patch adds the initial VP intrinsic integration test on the host backend and RVV emulator. Please see more detailed [discussion on the discourse](https://discourse.llvm.org/t/mlir-vp-ops-on-rvv-backend-integration-test-and-issues-report/66343).

- Run the test cases on the host by configuring the CMake option: `-DMLIR_INCLUDE_INTEGRATION_TESTS=ON`
- Build the RVV environment and run the test cases on RVV QEMU by [this doc](https://gist.github.com/zhanghb97/ad44407e169de298911b8a4235e68497).

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D137816

Differential Revision: https://reviews.llvm.org/D137688

This patch add the support of RISCV Zca ext

`Zca` is a subset of C extension instructions that are compatible with the Zc extension.

So this patch implements Zca code generation with reference to the C extension and sets the 2-byte alignment for the Zca extension, just like C extension does.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D130483

Makes the SRC_(SHARED|PRIVATE)_(BASE|LIMIT) registers 64 bit instead of 32.
They're still usable as 32 bit operands by using the _LO suffix.

Preparation for D137542

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D137767

This reverts commit 97e8eeb7.

Currently, it just returns exact exit count. This is a refectoring step
before it is actually implemented.

Add missing dependency for loongarch-resource-headers. This patch refers to D126892 to repair same error.

Differential Revision: https://reviews.llvm.org/D138403

As suggested on D138129, switching rteurn of CollectBindings
function to SymbolVector.

Reviewed By: jeanPerier

Differential Revision: https://reviews.llvm.org/D138419

When the rhs is non-polymorphic the type descriptor should not
be propagated. An error in the EmboxOp verifier was raised in that case.
This patch propagate the type descriptor only if the result type of the
EmboxOp operation is polymorphic.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D138442

Fixes https://github.com/llvm/llvm-project/issues/59021

Reviewed By: #libc, philnik

Differential Revision: https://reviews.llvm.org/D138268