This patch adds the kernel to lower evaluate::Expr to HLFIR to a
hlfir::FortranEntity (a single mlir::Value that can be interpreted as
a Fortran variable or the value of a Fortram expression).

It implements lowering of simple name designators ("x") and starts
adding a translation layer in AbstractConverter::genExprBox and
AbstractConverter::genExprAddr so that the new expression lowering
can be used without any changes for now in the current statement and
construct lowering.

Differential Revision: https://reviews.llvm.org/D136453

As that bug reports, the problem here is that the lambda's
'context-decl' was not set to the concept, and the lambda picked up
template arguments from the concept.  SO, we failed to get the correct
template arguments in SemaTemplateInstantiate.

However, a Concept Specialization is NOT a decl, its an expression, so
we weren't able to put the concept in the decl tree like we needed.
This patch introduces a ConceptSpecializationDecl, which is the smallest
type possible to use for this purpose, containing only the template
arguments.

The net memory impliciation of this is turning a
trailing-objects into a pointer to a type with trailing-objects,  so it
should be minor.

As future work, we may consider giving this type more responsibility, or
figuring out how to better merge duplicates, but as this is just a
template-argument collection at the moment, there isn't much value to
it.

Differential Revision: https://reviews.llvm.org/D136451

Try to get better coverage for the pattern-matching
possibilities in D136015.

This gets the tests closer to the form that we are
trying to test in D136015. Note that the IR has
changed, but the check lines have not changed.

This also shows that the desired commuted pattern
coverage is not as expected.

When checking for non null arguments the wrong SourceLocation was given,
this fix to pass the proper argument's location.

Fixes #58273

Differential Revision: https://reviews.llvm.org/D136355

There was a bug in scf.for loop bufferization that could lead to a missing buffer copy (alloc was there, but not the copy).

Differential Revision: https://reviews.llvm.org/D135053

This adds Clang command line support for the NVIDIA Grace CPU [1], which
we would like to target with -mcpu=grace.

Grace is based on the Arm Neoverse V2 CPU [1], which is why, in the
driver, we pass neoverse-v2 to the compiler when grace is requested.
Thus, for now, it's an alias to Neoverse V2.

This adds support for grace in user-facing tool Clang, but not yet the
developer tools like opt and llc, so we probably want to follow up on
this.

[1] https://www.nvidia.com/en-us/data-center/grace-cpu/

Differential Revision: https://reviews.llvm.org/D136425

Recognize when sub-vectors have been split to elements which are used to
build large vector.
This happens when instructions have different vector sizes available.
For example a few arithmetic instruction are required to process all
elements of larger vector that can be stored using one instruction.

Differential Revision: https://reviews.llvm.org/D109242

Recognize when source could have been unmerged to pieces with DstTy
without having to split source to smaller elements
and then merge small elements into DstTy pieces.
This happens when vector was meant to be split to sub-vectors but there
was leftover. At this point artifact combiner have already dealt with
leftover and we can continue to use sub-vectors.

Differential Revision: https://reviews.llvm.org/D109241

Recognize copy that is represented as split of a source register to
elements that were reassembled to another register with the same type.

Differential Revision: https://reviews.llvm.org/D109240

Differential Revision: https://reviews.llvm.org/D117655

The lack of this attribute (particularly on the load intrinsics)
prevented InstCombine from optimizing away allocas and memcpys
for arrays that could be read directly from rodata.

This now also includes a new test to check the masked load/store
intrinsics have the expected attributes (specifically nocapture).

Differential Revision: https://reviews.llvm.org/D135656

This was broken by https://reviews.llvm.org/D136351

`cpp::byte` is better than `char` which -depending on platform- can be `signed char` or `unsigned char`.  This has introduced subtle arithmetic errors.

This switches the v8.5-a FRINT intrinsics over to be target-gated,
behind preprocessor defines. This one is pretty simple, being AArch64
only.

Differential Revision: https://reviews.llvm.org/D135646

Move include_directories() declaration before gtest targets are created
in standalone build.  This fixes build failure due to gtest targets
being unable to find LLVM headers, e.g.:

    /var/tmp/portage/dev-util/lldb-16.0.0_pre20221023/work/llvm/utils/unittest/googletest/include/gtest/internal/custom/raw-ostream.h:43:10: fatal error: llvm/ADT/Optional.h: No such file or directory

Differential Revision: https://reviews.llvm.org/D136552

RegisterInfo is often initialised with a memcpy, and ContextInfo
does not run destructors for anything within it.

This was discussed in https://reviews.llvm.org/D134041.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D136584

getNonRedundantWriteProcRes was assuming that tblgen topologically sorted the cpu ModelProcResources[] arrays so that resource units were declared before the resource groups that used them, but unfortunately that doesn't appear to be true - in most cases it was just getting lucky based off the alphanumeric sorting that was being performed and the choice of the resource pipe names in most scheduler models (Intel models in particular).

This patch adds an explicit sort, based off llvm-mca's initializeUsedResources, that sorts by resource mask - I'm hoping this basic sorting is enough, I don't think overlapping groups or Super resources are a problem.

I'd like to take this further in the future and start sharing more code between llvm-mca and llvm-exegesis - while triaging this bug I saw how similar both approaches are, but are just dissimilar enough that any refactor isn't going to be trivial :(

Working with @courbet on a follow up unit test

Fixes #58500
Fixes #37045

Differential Revision: https://reviews.llvm.org/D136351

If the upper half of an abs() is all sign bits, then we can perform the abs() using just the lower half and then zero extend.

I've limited the DAG combine to only sign_extend_inreg (and free truncate/zero_extend) to minimise any later promotion issues, but for legalization a similar fold can use ComputeNumSignBits to be more aggressive.

Alive2: https://alive2.llvm.org/ce/z/y32fS4

Fixes #43370

Differential Revision: https://reviews.llvm.org/D136559

This version is more composable and also simpler at the expense of being more explicit and more verbose.

This patch provides rationale for the framework, implementation and unit tests but the functions themselves are still using the previous version. The change in implementation will come in a follow up patch.

Differential Revision: https://reviews.llvm.org/D136292

Reviewed By: kito-cheng

Differential Revision: https://reviews.llvm.org/D136570

llvm-debuginfo-analyzer is a command line tool that processes debug
info contained in a binary file and produces a debug information
format agnostic “Logical View”, which is a high-level semantic
representation of the debug info, independent of the low-level
format.

The code has been divided into the following patches:

1) Interval tree
2) Driver and documentation
3) Logical elements
4) Locations and ranges
5) Select elements
6) Warning and internal options
7) Compare elements
8) ELF Reader
9) CodeView Reader

Full details:
https://discourse.llvm.org/t/llvm-dev-rfc-llvm-dva-debug-information-visual-analyzer/62570

This patch:

Compare elements
- Support for logical elements comparison. See '--compare' options.
  LVCompare

Reviewed By: psamolysov, probinson

Differential Revision: https://reviews.llvm.org/D125782

`getDestinationOperands` was almost a duplicate of `DestinationStyleOpInterface::getOutputOperands`. Now that the interface has been moved to mlir/Interfaces, it is no longer needed.

Differential Revision: https://reviews.llvm.org/D136240

For now, only support lowering frame/return address for current frame.

Differential Revision: https://reviews.llvm.org/D136215

This adds a subset of the necessary metadata for defining
debug info in the LLVM dialect. It doesn't import everything,
but just enough to start actually generating LLVM debug info
the expected way. Export/Import to LLVMIR will be added in a
followup.

Differential Revision: https://reviews.llvm.org/D136542

We currently only support one level of aliases, which isn't great
in situations where an attribute/type can have multiple duplicated
components nested within it(e.g. debuginfo metadata). This commit
refactors alias generation to support nested aliases, which requires
changing alias grouping to take into account the depth of child
aliases, to ensure that attributes/types aren't printed before the
aliases they use.

The only real user facing change here was that we no longer print
0 as an alias suffix, which would be unnecessarily expensive to keep
in the new alias generation method (and isn't that valuable of a
behavior to preserve).

Differential Revision: https://reviews.llvm.org/D136541

We currently wrap all multi-bit cases with a string, but this is
overly restrictive. This commit refactors to use keywords when
we know they are valid, and only degrade to string when the validity
of the bitgroup is unknown.

Differential Revision: https://reviews.llvm.org/D136540

Tests that `CPlusPlusLanguage::MethodName` can parse demangled
names that contain references to C-arrays.

Example taken from libcxx API in the wild.

This patch adds AArch64 to the LP64 feature to avoid running LLP64
incompatible test on AArch64/Windows platform.

Differential Revision: https://reviews.llvm.org/D136070

Switch to autogenerated tests so we can use the same test for GISel and DAGIsel.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D136446

This patch fixes:

  mlir/include/mlir/IR/PatternMatch.h:1092:63: warning: parameter
  ‘values’ set but not used [-Wunused-but-set-parameter]