AuroraUX was an operating system project based on an OpenSolaris kernel
and an Ada userland.

There appear to be no public code or release available online anymore.
The project page on Wikipedia [1] was deleted in January 2012, and a news
item [2] from November 2012 has more details.

[1] https://en.wikipedia.org/w/index.php?title=Special:Log/delete&page=AuroraUX
[2] https://www.phoronix.com/scan.php?page=news_item&px=MTIyMTI

clang -extract-api should accept multiple headers and forward them to a
single CC1 instance. This change introduces a new ExtractAPIJobAction.
Currently API Extraction is done during the Precompile phase as this is
the current phase that matches the requirements the most. Adding a new
phase would need to change some logic in how phases are scheduled. If
the headers scheduled for API extraction are of different types the
driver emits a diagnostic.

Differential Revision: https://reviews.llvm.org/D121936

Failed buildbot: https://lab.llvm.org/buildbot/#/builders/17/builds/19480

The fix seems to be simply be adding some type casts to make the compiler happy

To ease profile annotation, each of the callsites in a function can be
annotated with profile data - "IR metadata format for MemProf" [1]. This
patch extends the on-disk serialized record format to store the debug
information for allocation callsites incl inline frames. This change is
incompatible with the existing format i.e. indexed profiles must be
regenerated, raw profiles are unaffected.

[1] https://groups.google.com/g/llvm-dev/c/aWHsdMxKAfE/m/WtEmRqyhAgAJ

Reviewed By: tejohnson

Differential Revision: https://reviews.llvm.org/D121179

Can cause initialization order fiasco issues.

This reverts commit 81569f5b.

This causes a segfault when building consumer-typeset in
ReleaseLTO-g configuration:
https://llvm-compile-time-tracker.com/show_error.php?commit=81569f5b6ef531a48023f28133481262ee1509a3

Post 892c104f, LLVM_BUILTIN_UNREACHABLE may not be defined anymore.
Also when LLVM_UNREACHABLE_OPTIMIZE is OFF, emit LLVM_BUILTIN_UNREACHABLE
after LLVM_BUILTIN_TRAP to ensure that diagnostics are suppressed on
environments where LLVM_BUILTIN_TRAP is not marked as noreturn.

Differential Revision: https://reviews.llvm.org/D122170

These were not detected by the build bots because those went quietly
offline, too, due to a misconfiguration (fixed since)

I am not sure about the meaning of Type in the name (was it meant be interpreted as Kind?), and given the importance and meaning of Type in the context of MLIR, its probably better to rename it. Given the comment in the source code, the suggestion in the GitHub issue and the final discussions in the review, this patch renames the OperandType to UnresolvedOperand.

Fixes https://github.com/llvm/llvm-project/issues/54446

Differential Revision: https://reviews.llvm.org/D122142

Change RewriteRule from holding an `Explanation` to being able to generate
arbitrary metadata. Where TransformerClangTidyCheck was interested in a string
description for the diagnostic, other tools may be interested in richer metadata
at a higher level of abstraction than at the edit level (which is currently
available as ASTEdit::Metadata).

Reviewed By: ymandel

Differential Revision: https://reviews.llvm.org/D120360

  - Add PerfEvent class to handle creating ring buffers and handle the resources associated with a perf_event
  - Refactor IntelPT collection code to use this new API
  - Add TSC to timestamp conversion logic with unittest

Differential Revision: https://reviews.llvm.org/D121734

NFC at this point, but will be used at a later patch.

Differential Revision: https://reviews.llvm.org/D122174

Fixes some initialization order fiasco issues
https://lab.llvm.org/buildbot#builders/5/builds/20996

The NVPTX toolchain uses target features to determine the PTX version to
use. However this isn't exposed externally like most other toolchain
specific target features are. Add this functionaliy in preparation for
using it in for OpenMP offloading.

Reviewed By: jdoerfert, tra

Differential Revision: https://reviews.llvm.org/D122089

Add a test case for byval argument passing where the argument size is more than
8 bytes and is not a factor of 8 bytes.

BUILD_VECTOR of i16 and undef gets expanded to the COPY_TO_REGCLASS.
         The latter is further lowererd to the copy instructions.
	 We need to provide the correct register class for the uniform and divergent BUILD_VECTOR nodes
	 to avoid VGPR to SGPR copies.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D122068

Some I/O error situations are current handled with fatal
runtime asserts, but should be exposed for user program
error recovery.

Differential Revision: https://reviews.llvm.org/D122049

This patch makes it possible to pass a CMake option to one of the runtimes
for all targets being built. Basically, any option that starts with the
name of a runtime project being built will be forwarded as-is to the
sub-build. This is useful for customizing a sub-build for all targets.

Differential Revision: https://reviews.llvm.org/D121822

This is only called for instructions and the caller is already holding
an Instruction *. This makes the code more explicit and makes it
obvious the code doesn't make decisions about constants.

Create a PrettyStackTraceEvent that will dump the current `MatchCallback` id as well as the `BoundNodes` if the 'run' method of a `MatchCallback` results in a crash.
The purpose of this is sometimes clang-tidy checks can crash in the `check` method. And in a large codebase with alot of checks enabled and in a release build, it can be near impossible to figure out which check as well as the source code that caused the crash. Without that information a reproducer is very hard to create.
This is a more generalised version of D118520 which has a nicer integration and should be useful to clients other than clang-tidy.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D120185

This amends 403d7d8d.

This reverts commit 18440547. Causing failures
in some build modes.

e.g. https://lab.llvm.org/buildbot/#/builders/217/builds/1886

Full-expressions are Sema-generated implicit nodes that cover
constant-expressions and expressions-with-cleanup for temporaries.

Ignore those as part of implicit-ignore, and also remove too-aggressive
IgnoreImplicit (which includes nested ImplicitCastExprs, for example)
on unpacked sub-expressions.

Add some unittests to demonstrate that RecursiveASTVisitor sees through
ConstantExpr nodes correctly.

Adjust cxx2a-consteval test to cover diagnostics for nested consteval
expressions that were previously missed.

Fixes bug #53044.

CastExpr::getSubExprAsWritten and getConversionFunction used to have
disparate implementations to traverse the sub-expression chain and skip
so-called "implicit temporaries" (which are really implicit nodes added
by Sema to represent semantic details in the AST).

There's some friction in these algorithms that makes it hard to extend
and change them:

* skipImplicitTemporary is order-dependent; it can skip a
CXXBindTemporaryExpr nested inside a MaterializeTemporaryExpr, but not
vice versa
* skipImplicitTemporary only runs one pass, it does not traverse
multiple nested sequences of MTE/CBTE/MTE/CBTE, for example

Both of these weaknesses are void at this point, because this kind of
out-of-order multi-level nesting does not exist in the current AST.

Adding a new implicit expression to skip exacerbates the problem,
however, since a node X might show up in any and all locations between
the existing.

Thus;

* Harmonize the form of getSubExprAsWritten and getConversionFunction
so they both use a for loop
* Use the IgnoreExprNodes machinery to skip multiple nodes
* Rename skipImplicitTemporary to ignoreImplicitSemaNodes to generalize
* Update ignoreImplicitSemaNodes so it only skips one level per call,
to mirror existing Ignore functions and work better with
IgnoreExprNodes

This is a functional change, but one without visible effect.

`llvm_unreachable()` and `LLVM_ASSUME_ALIGNED` use
`defined(LLVM_BUILTIN_UNREACHABLE)` to check whether it has a
definition. Remove the fallback added in 26827337 (as a drive-by
when updating the GCC logic) and add a comment to prevent future
mistakes.

Differential Revision: https://reviews.llvm.org/D122167

Change RewriteRule from holding an `Explanation` to being able to generate
arbitrary metadata. Where TransformerClangTidyCheck was interested in a string
description for the diagnostic, other tools may be interested in richer metadata
at a higher level of abstraction than at the edit level (which is currently
available as ASTEdit::Metadata).

Reviewed By: ymandel

Differential Revision: https://reviews.llvm.org/D120360

The test fails on AIX due to it expecting an error as on Linux. However, as on
other non-Linux systems symlinks permissions are supported so expect an empty
error code.

Reviewed By: daltenty, #libc, ldionne

Differential Revision: https://reviews.llvm.org/D121140

Tests must not include headers from the host system.
It looks like the include wasn't needed for anything, so just remove it.

This makes check-clang work in a `git bash` launched from a cmd.exe
that isn't an MSVC shell (that is, %INCLUDE% isn't set).

Fixes https://github.com/clangd/clangd/issues/1072

The reported crash regression was (presumably) fixed in 79a18237, but without adding coverage.

If `clang_base_path` is set, it must now point to a directory that contains
an lld-link built with D118070.

(If this is a problem for anyone, we can guard this behind a
lld_link_understands_winsysroot gn arg, but let's see if we can get away
without that for now.)

With this, it's possible to build everything in a normal cmd.exe Window,
an MSVC shell isn't needed \o/

(Assuming you set `clang_base_path`, and you set `sysroot` to a directory
that contains a win sysroot. If you have MSVC installed,
`python3 llvm\utils\sysroot.py make-fake --out-dir=my-sysroot` and
setting `sysroot = "//my-sysroot"` in args.gn works, for example.)

Differential Revision: https://reviews.llvm.org/D121871

Fixes initialization order fiasco issue reported by
https://lab.llvm.org/buildbot/#builders/5/builds/20987

[X86][AVX512] lower1BitShuffle - fold broadcast(setcc(x,y)) -> setcc(broadcast(x),broadcast(y)) (PR52500)

AVX512 has excellent broadcast ops for everything but vXi1 bool vectors - so if we're broadcasting a comparison result, see if we can broadcast the comparison operands instead.

Add a comment to getFrame() to mention that frames are stored in
bottom-up, i.e. leaf to root in order of increasing index.

Differential Revision: https://reviews.llvm.org/D122033

Since DI frames are enumerated with the leaf function at index 0, this
patch fixes the logic when IsInlineFrame is set. Also update the
unittests to check that only the last frame is marked as non-inline from
a set of DI Frames for a PC address.

Differential Revision: https://reviews.llvm.org/D121830