Unfortunately I've not found a way to exercise this code that doesn't
crash elsewhere yet, due to unrelated bugs in how Sema incorrectly
instantiates lambdas in function template signatures.

PR45875 notes an instance where exception handling crashes on aarch64-fuchsia
where SCS is enabled by default. The underlying issue seems to be that within libunwind,
various _Unwind_* functions, the x18 register is not updated if a function is marked
with nounwind. This removes the check for nounwind and emits the CFI instruction that updates x18.

Differential Revision: https://reviews.llvm.org/D79822

If a loop is flattened, the inner loop is removed and the LPM
should be informed of this fact, so it can invalidate associated
analyses. To support this, we relax an assertion in LPMUpdater to
allow invalidating non-top-level loops when running in LoopNestMode,
as the pass does not know how exactly it will get scheduled.

Differential Revision: https://reviews.llvm.org/D111350

Implement https://wg21.link/p1394 which allows span to be constructible
from any contiguous forwarding-range that has a compatible element type.

Fixes https://bugs.llvm.org/show_bug.cgi?id=51443

Reviewed By: ldionne, Quuxplusone, #libc

Differential Revision: https://reviews.llvm.org/D110503

Instead of hard-coding results for both Intel and AMD, let's relax
the checks to simplify the test while supporting both implementations.
Note that:
- If a new hardware implementation comes up in the future, it is likely
  to pass the relaxed tests, i.e. no future maintenance burden for us.
- If something terribly wrong happens (e.g. instead of rsqrt we
  execute 1/sqrt), the tests will probably catch it, since the relaxed
  tests expect low precision (e.g. rsqrt(1) != 1.0).

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D111461

Distinct lambda expressions are always considered non-equivalent, so two
token-for-token identical function declarations whose signatures involve
lambda-expressions declare distinct functions.

We weren't recognizing the ISHFT intrinsic because the code had
incorrectly capitalized it.

Differential Revision: https://reviews.llvm.org/D111449

This reverts commit dfd74db9.

SimpleRemoteEPC should share dispatch with the ExecutionSession, rather than
having two different dispatch systems on the controller side.
SimpleRemoteEPCServer::Dispatch doesn't need to be shared.

SimpleRemoteEPCServer Service shutdown (c965fde7) takes care of this.

We need to make it a template

This patch updates the vec_extract builtins to take a signed int as the second
parameter, as defined by the Power Vector Intrinsics Programming Reference.
This patch is NFC and all existing tests pass.

Differential Revision: https://reviews.llvm.org/D110935

__builtin_assume_aligned's second parameter is size_t, which may be 32 bits.
We can't pass 2^32 when that happens. Update tests accordingly.

Example broken bot due to D111250:
https://lab.llvm.org/buildbot/#/builders/171/builds/4531

This moves the DenseMapInfo implementation for hash_code into
Hashing.h, removing the need to include Hashing.h (and thus <string>)
in DenseMapInfo.h. This follows the general convention of declaring
DenseMapInfo for types that we own in the respective header. The
remaining implementations in DenseMapInfo.h are all for types we
do not own.

Differential Revision: https://reviews.llvm.org/D111451

This patch adds an external interface to access the dynamic shared
memory buffer in the device runtime. The function introduced is
``llvm_omp_get_dynamic_shared``. This includes a host-side
definition that only returns a null pointer so that it can be used when
host-fallback is enabled without crashing. Support for dynamic shared
memory was also ported to the old device runtime.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D110957

Warning introduced in 61ec2148

This patch refactors Scripted Process and Scripted Thread related
classes to use LLVM_PRETTY_FUNCTION instead of the compiler macro.

Differential Revision: https://reviews.llvm.org/D111452



Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>

Followup to D110451 which set LLVM's max allowed alignment to 2^32.

Reviewed By: hans

Differential Revision: https://reviews.llvm.org/D111250

Avoid relying on a number of indirect includes that currently
happen through the Hashing.h header in DenseMapInfo.h.

Renames SimpleRemoteEPCServer::Dispatcher to SimpleRemoteEPCDispatcher and
moves it into OrcShared. SimpleRemoteEPCServer::ThreadDispatcher is similarly
moved and renamed to DynamicThreadPoolSimpleRemoteEPCDispatcher.

This will allow these classes to be reused by SimpleRemoteEPC on the controller
side of the connection.

Clang option to set/unset afn fast-math flag.

 Differential: https://reviews.llvm.org/D106191
 Reviewd with: aaron.ballman, erichkeane, and others

Update the status with the approved papers and LWG-issues in the October 2021 plenary.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D111166

ArgsABI was originally added in https://reviews.llvm.org/D965

Current benchmarking does not show a significant difference.
There is no need to maintain both ABIs.

Reviewed By: pcc

Differential Revision: https://reviews.llvm.org/D111097

[RegisterScavenging] Use a Twine in a call to report_fatal_error instead of going from std::string to c_str. NFC

The std::string was built on the line above. Might as well just
build it as a Twine in the call.

This reverts commit b2ee408d.

I'm planning some changes to the invalidation mechanism here, and having a concrete mechanism to track progress is key.

The goal here is to assist some future tuning work both on instruction ordering invalidation, and on some client code which uses it.

This reverts commit d68b59f3.

This is causing crashes, see D110922 for details.

This patch modifies the testcase to use error substitution so it will pass on all platforms.

Reviewed By: fanbo-meng, muiez

Differential Revision: https://reviews.llvm.org/D111320

Fixes polly build

It may be possible to avoid relying on accessing many individual class pages,
by instead scanning the class index page at
https://clang.llvm.org/doxygen/classes.html. This updates the script to do so,
and includes updates to `LibASTMatchersReference.html` generated by the
modified script.

Reviewed By: aaron.ballman, sammccall

Differential Revision: https://reviews.llvm.org/D111332

Contributes several matchers that involve `TypeLoc`s. These matchers are (in alphabetical order):

- elaboratedTypeLoc
- hasAnyTemplateArgumentLoc
- hasNamedTypeLoc
- hasPointeeLoc
- hasReferentLoc
- hasReturnTypeLoc
- hasTemplateArgumentLoc
- hasUnqualifiedLoc
- pointerTypeLoc
- qualifiedTypeLoc
- referenceTypeLoc
- templateSpecializationTypeLoc

Reviewed By: ymandel, aaron.ballman

Differential Revision: https://reviews.llvm.org/D111242

This reverts commit a23a5967.

This broke a windows test https://buildkite.com/llvm-project/premerge-checks/builds/59492#7dad207c-6cbe-40ad-95e4-c48b47fe2527

Differential Revision: https://reviews.llvm.org/D111444

This was missed in D95972 / 7c49052b,
as this codepath isn't exercised by CI yet.

Differential Revision: https://reviews.llvm.org/D111292

Previously if you passed an absolute path to clang, where only part of
the path to the file was remapped, it would result in the file's DIFile
being stored with a duplicate path, for example:

```
!DIFile(filename: "./ios/Sources/bar.c", directory: "./ios/Sources")
```

This change handles absolute paths, specifically in the case they are
remapped to something relative, and uses the dirname for the directory,
and basename for the filename.

This also adds a test verifying this behavior for more standard uses as
well.

Differential Revision: https://reviews.llvm.org/D111352