Summary of changes:
- enabled null for VOP operands;
- added description of s_waitcnt_depctr syntactic sugar.

Differential Revision: https://reviews.llvm.org/D123485

This is unncessary, so we remove it as an optimization.

Reviewed By: Groverkss

Differential Revision: https://reviews.llvm.org/D123540

It breaks arm build, there is no free bit for the extra
UsingShadowDecl in TemplateName::StorageType.

Reverting it to build the buildbot back until we comeup with a fix.

This reverts commit 5a5be404.

With this change, there's going to be a clear distinction between LLVM
and MLIR pass maanger options (e.g. `-mlir-print-after-all` vs
`-print-after-all`). This change is desirable from the point of view of
projects that depend on both LLVM and MLIR, e.g. Flang.

For consistency, all pass manager options in MLIR are prefixed with
`mlir-`, even options that don't have equivalents in LLVM .

Differential Revision: https://reviews.llvm.org/D123495

Lookup iter_arg buffers using `lookupBuffer` instead of always creating a new `ToMemrefOp`. Also cast all yielded buffers (if necessary), regardless of whether they are an equivalent buffer or a new allocation.

Note: This should have been part of D123369.

Differential Revision: https://reviews.llvm.org/D123383

Retain the behavior we get without opaque pointers: A call to a
known function with different function type is considered an
indirect call.

This fixes the crash reported in https://reviews.llvm.org/D123300#3444772.

This is the template version of https://reviews.llvm.org/D114251.

This patch introduces a new template name kind (UsingTemplateName). The
UsingTemplateName stores the found using-shadow decl (and underlying
template can be retrieved from the using-shadow decl). With the new
template name, we can be able to find the using decl that a template
typeloc (e.g. TemplateSpecializationTypeLoc) found its underlying template,
which is useful for tooling use cases (include cleaner etc).

This patch merely focuses on adding the node to the AST.

Next steps:
- support using-decl in qualified template name;
- update the clangd and other tools to use this new node;
- add ast matchers for matching different kinds of template names;

Differential Revision: https://reviews.llvm.org/D123127

Merging multiple legacy profiles (produced by instrumentation BOLT) can
easily reach GiBs. Let merge-fdata compact the profiles during merge to
significantly reduce space usage.

Differential Revision: https://reviews.llvm.org/D123513

Reviewed By: martong

Differential Revision: https://reviews.llvm.org/D123397

This is a footgun: assigning a null std::function to a function_ref
does not yield a null function_ref...

This fixes an ASAN failure.

This reverts commit b4117fed.
This broke one of the MLIR bot, a test is failing.

Otherwise if you try to update the branch with a new /cherry-pick
from the same issue you will run into problems similar as to the
one shown in this workflow:
https://github.com/llvm/llvm-project/runs/5864672298?check_suite_focus=true

Reviewed By: tstellar

Differential Revision: https://reviews.llvm.org/D123365

The change described by:

https://reviews.llvm.org/D122226

Moved some llvm-pdbutil functionality to the debug PDB library.

This patch addresses a broken '-modi' argument handling, which
causes an assertion if its value is other than '0' or '1'.

In addition, it moves the assertion for the number of occurrences
of the '-modi' argument from the PDB library into the llvm-pdbutil
driver.

Reviewed By: zequanwu

Differential Revision: https://reviews.llvm.org/D123483

And remove a -no-opaque-pointers

If the CFG structure of a waterfall loop is not the expected shape
then gracefully abort traversing the IR for the given loop.
This applies to nest waterfall loops which are not supported by
the VGPR live range optimizer.

Reviewed By: ruiling

Differential Revision: https://reviews.llvm.org/D123480

Differential Revision: https://reviews.llvm.org/D123570

NFC. Address clang-tidy warning in AffineOps.cpp.

Switch CUDA runtime wrapper for GPU mem alloc/free to async. The
semantics of the GPU dialect ops (gpu.alloc/dealloc) and the wrappers it
lowered to (gpu-to-llvm) was for the async versions -- however, this was
being incorrectly mapped to cuMemAlloc/cuMemFree instead of
cuMemAllocAsync/cuMemFreeAsync.

Reviewed By: csigg

Differential Revision: https://reviews.llvm.org/D123482

According to CWG 1394 and C++20 [dcl.fct.def.general]p2,
Clang should not diagnose incomplete types if function body is "= delete;".
For example:
```
struct Incomplete;
Incomplete f(Incomplete) = delete; // well-formed
```

Also close https://github.com/llvm/llvm-project/issues/52802

Differential Revision: https://reviews.llvm.org/D122981

Generic_GCC::IsIntegratedAssemblerDefault() already takes care of CSKY.

Reviewed By: zixuan-wu

Differential Revision: https://reviews.llvm.org/D123431

This supports the threadprivate directive in OpenMP dialect following
the OpenMP 5.1 [2.21.2] standard. Also lowering to LLVM IR using OpenMP
IRBduiler.

Reviewed By: kiranchandramohan, shraiysh, arnamoy10

Differential Revision: https://reviews.llvm.org/D123350

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D123487