Log message:
clang-tools-extra: updated to 12.0.1

Improvements to clangd

Performance

clangd’s memory usage is significantly reduced on most Linux systems. In \ 
particular, memory usage should not increase dramatically over time.

The standard allocator on most systems is glibc’s ptmalloc2, and it creates \ 
disproportionately large heaps when handling clangd’s allocation patterns. By \ 
default, clangd will now periodically call malloc_trim to release free pages on \ 
glibc systems.

Users of other allocators (such as jemalloc or tcmalloc) on glibc systems can \ 
disable this using --malloc_trim=0 or the CMake flag -DCLANGD_MALLOC_TRIM=0.

Added the $/memoryUsage request: an LSP extension. This provides a breakdown of \ 
the memory clangd thinks it is using (excluding malloc overhead etc). The clangd \ 
VSCode extension supports showing the memory usage tree.
Parsing and selection

Improved navigation of broken code in C using Recovery AST. (This has been \ 
enabled for C++ since clangd 11).
Types are understood more often in broken code. (This is the first release where \ 
Recovery AST preserves speculated types).
Heuristic resolution for dependent names in templates.
Code completion

Higher priority for symbols that were already used in this file, and symbols \ 
from namespaces mentioned in this file. (Estimated 3% accuracy improvement)

Introduced a ranking algorithm trained on snippets from a large C++ codebase. \ 
Use the flag --ranking-model=decision_forest to try this (Estimated 6% accuracy \ 
improvement). This mode is likely to become the default in future.

Note: this is a generic model, not specialized for your code. clangd does not \ 
collect any data from your code to train code completion.

Signature help works with functions with template-dependent parameter types.
Go to definition

Selecting an auto or decltype keyword will attempt to navigate to a definition \ 
of the deduced type.
Improved handling of aliases: navigate to the underlying entity more often.
Better understanding of declaration vs definition for Objective-C classes and \ 
protocols.
Selecting a pure-virtual method shows its overrides.
Find references

Indexes are smarter about not returning stale references when code is deleted.
References in implementation files are always indexed, so results should be more \ 
complete.
Find-references on a virtual method shows references to overridden methods.
New navigation features

Call hierarchy (textDocument/callHierarchy) is supported. Only incoming calls \ 
are available.
Go to implementation (textDocument/implementation) is supported on abstract \ 
classes, and on virtual methods.
Symbol search (workspace/symbol) queries may be partially qualified. That is, \ 
typing b::Foo will match the symbol a::b::c::Foo.
Refactoring

New refactoring: populate switch statement with cases. (This acts as a fix for \ 
the -Wswitch-enum warning).
Renaming templates is supported, and many other complex cases were fixed.
Attempting to rename to an invalid or conflicting name can produce an error \ 
message rather than broken code. (Not all cases are detected!)
The accuracy of many code actions has been improved.
Hover

Hovers for auto and decltype show the type in the same style as other hovers. \ 
this is also now supported.
Displayed type names are more consistent and idiomatic.
Semantic highlighting

Inactive preprocessor regions (#ifdef) are highlighted as comments.
clangd 12 is the last release with support for the non-standard \ 
textDocument/semanticHighlights notification. Clients sholud migrate to the \ 
textDocument/semanticTokens request added in LSP 3.16.
Remote index (alpha)

clangd can now connect to a remote index server instead of building a project \ 
index locally. This saves resources in large codebases that are slow to index.
The server program is clangd-index-server, and it consumes index files produced \ 
by clangd-indexer.
This feature requires clangd to be built with the CMake flag \ 
-DCLANGD_ENABLE_REMOTE=On, which requires GRPC libraries and is not enabled by \ 
default. Unofficial releases of the remote-index-enabled client and server tools \ 
are at https://github.com/clangd/clangd/releases
Large projects can deploy a shared server, and check in a .clangd file to enable \ 
it (in the Index.External section). We hope to provide such a server for \ 
llvm-project itself in the near future.
Configuration

Static and remote indexes can be configured in the Index.External section. \ 
Different static indexes can now be used for different files. (Obsoletes the \ 
flag --index-file).
Diagnostics can be filtered or suppressed in the Diagnostics section.
Clang-tidy checks can be enabled/disabled in the Diagnostics.ClangTidy section. \ 
(Obsoletes the flag --clang-tidy-checks).
The compilation database directory can be configured in the CompileFlags \ 
section. Different compilation databases can now be specified for different \ 
files. (Obsoletes the flag --compile-commands-dir).
Errors in loaded configuration files are published as LSP diagnostics, and so \ 
should be shown in your editor.
Full reference of configuration options

System integration

Changes to compile_commands.json and compile_flags.txt will take effect the next \ 
time a file is parsed, without restarting clangd.
clangd --check=<filename> can be run on the command-line to simulate \ 
opening a file without actually using an editor. This can be useful to reproduce \ 
crashes or aother problems.
Various fixes to handle filenames correctly (and case-insensitively) on windows.
If incoming LSP messages are malformed, the logs now contain details.
Miscellaneous

“Show AST” request (textDocument/ast) added as an LSP extension. This \ 
displays a simplified view of the clang AST for selected code. The clangd VSCode \ 
extension supports this.
clangd should no longer crash while loading old or corrupt index files.
The flags --index, --recovery-ast and -suggest-missing-includes have been \ 
retired. These features are now always enabled.
Too many stability and correctness fixes to mention.

Log message:
*: Recursive revbump from textproc/icu-68.1

Log message:
llvm: updated to 10.0.1

10.0.1:
Bug fix release

Log message:
clang-tools-extra: static analyzer is on by default; bump revision

Log message:
Revbump for icu

Log message:
clang-tools-extra: update to 10.0.0nb1.

Add missing dependency on clang for libclang-cpp.so.

Log message:
clang-tools-extra: updated to 10.0.0

What’s New in Extra Clang Tools 10.0.0?

Some of the major new features and improvements to Extra Clang Tools are listed \ 
here. Generic improvements to Extra Clang Tools as a whole or to its underlying \ 
infrastructure are described first, followed by tool-specific sections.

Improvements to clangd

clangd documentation is now found at https://clangd.llvm.org/
Go-to-definition, hover, find-references etc use a new mechanism to identify \ 
what is under the cursor, which is (hopefully) more consistent and accurate.
clangd should be able to reliably locate the standard library/SDK on macOS.
Shutdown more cleanly on receiving a signal. In particular temporary PCH files \ 
should be cleaned up.
Find references now works on macros.
clangd can be more easily used remotely or in a docker container.
The --path-mappings flag translates between local and remote paths.
Experimental support for renaming across files (behind the --cross-file-rename flag).
Hover now exposes more information, including the type of symbols and the value \ 
of constant expressions.
Go to definition now works in dependent code in more cases, by assuming the \ 
primary template is used.
Better recovery and reporting when the compile command for a file can’t be \ 
fully parsed.
Switch header/source (an extension) now uses index information in addition to \ 
filename heuristics, and is much more robust.
Semantic selection (expand/contract selection) is supported.
Semantic highlighting is more robust, highlights more types of tokens, and as an \ 
extension provides information about inactive preprocessor regions.
Code completion results now include an extension field score.
This allows clients to incorporate clangd quality signals when re-ranking code \ 
completion after client-side fuzzy-matching.
New refactorings: define function out-of-line, define function in-line, extract \ 
function, remove using namespace directive, localize Objective-C string.
Bug fixes and performance improvements :-)

Improvements to clang-doc

clang-doc now generates documentation in HTML format.
Improvements to clang-tidy

New checks

New bugprone-bad-signal-to-kill-thread check.
Finds pthread_kill function calls when a thread is terminated by raising SIGTERM \ 
signal.

New bugprone-dynamic-static-initializers check.
Finds instances where variables with static storage are initialized dynamically \ 
in header files.

New bugprone-infinite-loop check.
Finds obvious infinite loops (loops where the condition variable is not changed \ 
at all).

New bugprone-not-null-terminated-result check
Finds function calls where it is possible to cause a not null-terminated result.

New bugprone-signed-char-misuse check.
Finds signed char to integer conversions which might indicate a programming error.

New cert-mem57-cpp check.
Checks if an object of type with extended alignment is allocated by using the \ 
default operator new.

New cert-oop58-cpp check.
Finds assignments to the copied object and its direct or indirect members in \ 
copy constructors and copy assignment operators.

New cppcoreguidelines-init-variables check.
Checks whether there are local variables that are declared without an initial value.

New darwin-dispatch-once-nonstatic check.
Finds declarations of dispatch_once_t variables without static or global storage.

New google-upgrade-googletest-case check.
Finds uses of deprecated Googletest APIs with names containing case and replaces \ 
them with equivalent APIs with suite.

New linuxkernel-must-use-errs check.
Checks Linux kernel code to see if it uses the results from the functions in \ 
linux/err.h.

New llvm-prefer-register-over-unsigned check.
Finds historical use of unsigned to hold vregs and physregs and rewrites them to \ 
use Register

New objc-missing-hash check.
Finds Objective-C implementations that implement -isEqual: without also \ 
appropriately implementing -hash.

New performance-no-automatic-move check.
Finds local variables that cannot be automatically moved due to constness.

New performance-trivially-destructible check.
Finds types that could be made trivially-destructible by removing out-of-line \ 
defaulted destructor declarations.

New readability-make-member-function-const check.
Finds non-static member functions that can be made const because the functions \ 
don’t use this in a non-const way.

New readability-qualified-auto check.
Adds pointer and const qualifications to auto-typed variables that are deduced \ 
to pointers and const pointers.

New readability-redundant-access-specifiers check.
Finds classes, structs, and unions that contain redundant member access specifiers.

New aliases

New alias cert-pos44-c to bugprone-bad-signal-to-kill-thread was added.
New alias llvm-qualified-auto to readability-qualified-auto was added.

Changes in existing checks

Improved bugprone-posix-return check.
Now also checks if any calls to pthread_* functions expect negative return values.

Improved hicpp-signed-bitwise check.
The check now supports the IgnorePositiveIntegerLiterals option.

Improved modernize-avoid-bind check.
The check now supports supports diagnosing and fixing arbitrary callables \ 
instead of only simple free functions. The PermissiveParameterList option has \ 
also been added to address situations where the existing fix-it logic would \ 
sometimes generate code that no longer compiles.

The modernize-use-equals-default fix no longer adds semicolons where they would \ 
be redundant.

Improved modernize-use-override check.
The check now supports the AllowOverrideAndFinal option to eliminate conflicts \ 
with gcc -Wsuggest-override or gcc -Werror=suggest-override.

The modernize-use-using check now converts typedefs containing struct \ 
definitions and multiple comma-separated types.

Improved readability-magic-numbers check.
The check now supports the IgnoreBitFieldsWidths option to suppress the warning \ 
for numbers used to specify bit field widths.

The check was updated to eliminate some false positives (such as using class \ 
enumeration as non-type template parameters, or the synthetically computed \ 
length of a static user string literal.)

Improved readability-redundant-member-init check.
The check now supports the IgnoreBaseInCopyConstructors option to avoid “base \ 
class ‘Foo’ should be explicitly initialized in the copy constructor” \ 
warnings or errors with gcc -Wextra or gcc -Werror=extra.

The readability-redundant-string-init check now supports a StringNames option \ 
enabling its application to custom string classes.

Renamed checks

The ‘objc-avoid-spinlock’ check was renamed to darwin-avoid-spinlock

Log message:
llvm: updated to 9.0.1

9.0.1 is a bug-fix release.

Log message:
catch up with llvm relicensing and bump PKGREVISIONs

Log message:
clang-tools-extra: updated to 9.0.0

9.0.0:
Improvements to clangd
* Background indexing is on by default
When using clangd, it will build an index of your code base (all files listed in \ 
your compile database). This index enables go-to-definition, find-references, \ 
and even code completion to find symbols across your project.
This feature can consume a lot of CPU. It can be disabled using the \ 
--background-index=false flag, and respects -j to use fewer threads. The index \ 
is written to .clangd/index in the project root.

* Contextual code actions
Extract variable, expand auto, expand macro, convert string to raw string. More \ 
to come in the future!

* Clang-tidy warnings are available
These will be produced for projects that have a .clang-tidy file in their source \ 
tree, as described in the clang-tidy documentation.

* Improved diagnostics
Errors from headers are now shown (on the #including line). The message now \ 
indicates if fixes are available. Navigation between errors and associated notes \ 
is improved (for editors that support Diagnostic.relatedInformation).

* Suggested includes
When a class or other name is not found, clangd may suggest to fix this by \ 
adding the corresponding #include directive.

* Semantic highlighting
clangd can push syntax information to the editor, allowing it to highlight e.g. \ 
member variables differently from locals. (requires editor support)
This implements the proposed protocol from \ 
https://github.com/microsoft/vscode-languageserver-node/pull/367

* Type hierachy
Navigation to base/derived types is possible in editors that support the \ 
proposed protocol from \ 
https://github.com/microsoft/vscode-languageserver-node/pull/426

* Improvements to include insertion
Only headers with #include-guards will be inserted, and the feature can be \ 
disabled with the --header-insertion=never flag.
Standard library headers should now be inserted more accurately, particularly \ 
for C++ other than libstdc++, and for the C standard library.

* Code completion
Overloads are bundled into a single completion item by default. (for editors \ 
that support signature-help).
Redundant const/non-const overloads are no longer shown.
Before clangd is warmed up (during preamble build), limited identifier- and \ 
index-based code completion is available.

* Format-on-type
A new implementation of format-on-type is triggered by hitting enter: it \ 
attempts to reformat the previous line and reindent the new line. (Requires \ 
editor support).

* Toolchain header detection
Projects that use an embedded gcc toolchain may only work when used with the \ 
corresponding standard library. clangd can now query the toolchain to find these \ 
headers. The compilation database must correctly specify this toolchain, and the \ 
--query-driver=/path/to/toolchain/bin/* flag must be passed to clangd.

* Miscellaneous improvements
Hover now produces richer Markdown-formatted text (for supported editors).
Rename is safer and more helpful, though is still within one file only.
Files without extensions (e.g. C++ standard library) are handled better.
clangd can understand offsets in UTF-8 or UTF-32 through command-line flags or \ 
protocol extensions. (Useful with editors/platforms that don’t speak UTF-16).
Editors that support edits near the cursor in code-completion can set the \ 
textDocument.completion.editsNearCursor capability to true, and clangd will \ 
provide completions that correct . to ->, and vice-versa.

Improvements to clang-tidy

New OpenMP module.
New abseil-duration-addition check.
New abseil-duration-conversion-cast check.
New abseil-duration-unnecessary-conversion check.
New abseil-time-comparison check.
New abseil-time-subtraction check.
New android-cloexec-pipe check.
New android-cloexec-pipe2 check.
New bugprone-branch-clone check.
New bugprone-posix-return check.
New bugprone-unhandled-self-assignment check.
New fuchsia-default-arguments-calls check.
New fuchsia-default-arguments-declarations check.
New google-objc-avoid-nsobject-new check.
New google-readability-avoid-underscore-in-googletest-name check.
New llvm-prefer-isa-or-dyn-cast-in-conditionals check.
New modernize-use-trailing-return-type check.
New objc-super-self check.
New openmp-exception-escape check.
New openmp-use-default-none check.
New readability-convert-member-functions-to-static check.
New alias cert-oop54-cpp to bugprone-unhandled-self-assignment was added.
New alias cppcoreguidelines-explicit-virtual-functions to modernize-use-override \ 
was added.
Added UseAssignment option to cppcoreguidelines-pro-type-member-init
The fuchsia-default-arguments check has been removed.
The google-runtime-int check has been disabled in Objective-C++.
The modernize-use-override now supports OverrideSpelling and FinalSpelling options.
The misc-throw-by-value-catch-by-reference now supports WarnOnLargeObject and \ 
MaxSize options to warn on any large trivial object caught by value.
The Acronyms and IncludeDefaultAcronyms options for the \ 
objc-property-declaration check have been removed.

Improvements to pp-trace
* Added a new option -callbacks to filter preprocessor callbacks. It replaces \ 
the -ignore option.