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

Adding annotations on as-needed bases, currently only for memrefCopy, but in general all C API functions that take pointers to memory allocated/initialized inside the jit-compiled code must be annotated, to be able to run with msan.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D123557

Reviewed By: xbolva00, spatel, Chenbing.Zheng

Differential Revision: https://reviews.llvm.org/D123486

This diff extends foldSelectInstWithICmp to handle the case icmp(X) ? f(X) : C
when f(X) is guaranteed to be equal to C for all X in the exact range of the inverse predicate.
This addresses the issue https://github.com/llvm/llvm-project/issues/54089.

Differential revision: https://reviews.llvm.org/D123159

Test plan: make check-all

Differential Revision: https://reviews.llvm.org/D123558

Differential revision: https://reviews.llvm.org/D123430

Test plan: make check-all

As far as I know getNode will never return a null SDValue.

I'm guessing this was modeled after the FoldConstantArithmetic
call earlier.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D123550

They didn't match sanitizer_common for 32bit.

Reject acquire stores and release loads. This matches the restriction
imposed by the LLParser and IR verifier.

Minimizes the test diffs in future changes from introduction of -NEXT.

Use the new pass manager.

This also removes the ability to run arbitrary sets of passes. Not sure if this functionality is used, but it doesn't seem to be tested.

No need to initialize passes outside of constructing the PassBuilder with the new pass manager.

Reland: Fixed custom calls to `-lower-matrix-intrinsics` in integration tests by replacing them with `-O0 -enable-matrix`.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D123425

This reverts commit b0f7f6f7.

Causes test failures: https://lab.llvm.org/buildbot#builders/61/builds/24879

This is really a replacement for memSizeInBytesNotPow2 that actually
does what most every target wants. In particular, since s1 rounds to 1
byte, it wasn't lowered by this predicate. This results in targets
needing to think harder and add more matchers to catch all the
degenerate cases.

Also small bug fix that prevented the correct insertion of
G_ASSERT_ZEXT in the AArch64 use case.