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Martin Kustermann f5d1229081 Reland "[VM] Inline ClassID.getID() eagerly, extend pattern matching logic to recognize it, use it to special case ascii decoding" 
This change extends/fixes the exiting "pattern recognition" which tries
to recognize the pattern

  v2 <- LoadClassIdInstr(v1)
  BranchIf v2 == IntegerConstant(cid)

Furthermore we start inlining the recognized `ClassID.getID` method very
early in the pipeline.  This allows the VM to recognize the above
pattern and insert redefinitions before the actual inlining pass.

Furthermore we special-case two very hot methods in utf8 decoding by
manually having two loops, one of which is guarded by a class-id check
against the _Uint8ArrayView class, which is most common.  (In the future
we would like to unify the typed data layouts so we no longer need to
use `ClassId.getID`, thereby also allowing non core library code to use
this).

This improves dart-aot by
  * 31%+ for a protobuf decoding benchmark we care about

Issue https://github.com/dart-lang/sdk/issues/31954

Change-Id: I7181bbf096aabe303634fd3b2bff9cc96d69719c
Reviewed-on: https://dart-review.googlesource.com/c/85443
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2018-11-28 10:43:32 +00:00
.github Add no-response bot configuration. 2018-10-05 22:21:06 +00:00
build Revert "Reland: [infra] Roll buildtools to c72a1c5aadde06505b7bb4641720880f3db28ff9" 2018-11-27 23:35:08 +00:00
client Remove old annotated_steps buildbot scripts and dispatcher 2017-05-23 16:17:02 +02:00
docs TBR: Added a missing status update to the int64.md feature specification. 2018-11-22 15:31:29 +00:00
pkg Reland "[VM] Inline ClassID.getID() eagerly, extend pattern matching logic to recognize it, use it to special case ascii decoding" 2018-11-28 10:43:32 +00:00
runtime Reland "[VM] Inline ClassID.getID() eagerly, extend pattern matching logic to recognize it, use it to special case ascii decoding" 2018-11-28 10:43:32 +00:00
samples [vm] Remove script snapshots. 2018-09-26 22:49:27 +00:00
samples-dev fix some typos 2018-10-10 19:15:30 +00:00
sdk Reland "[VM] Inline ClassID.getID() eagerly, extend pattern matching logic to recognize it, use it to special case ascii decoding" 2018-11-28 10:43:32 +00:00
tests Remove unused code from LocalsHandler 2018-11-27 14:07:01 +00:00
third_party [vm] Integrate dart binary with Crashpad on Windows. 2018-10-24 13:30:16 +00:00
tools Revert "Reland: [infra] Roll buildtools to c72a1c5aadde06505b7bb4641720880f3db28ff9" 2018-11-27 23:35:08 +00:00
utils Remove library-root option - replace it with a libraries-spec option instead 2018-11-09 22:40:28 +00:00
.clang-format VM: Re-format to use at most one newline between functions 2017-07-13 08:08:37 -07:00
.gitattributes Remove the Dart 1 tests. 2018-10-11 23:45:18 +00:00
.gitconfig [infra] Add documentation to .gitconfig 2018-06-11 18:24:16 +00:00
.gitignore Git ignore vscode project files. 2017-03-23 15:26:06 -07:00
.gn Starting work on full GN build 2016-09-23 07:47:36 -07:00
.mailmap fix my name in .mailmap 2018-09-11 01:45:52 +00:00
.packages Move dartfix to its own package 2018-10-22 17:50:25 +00:00
.vpython [infra] Add .vpython spec to fix gsutil on the bots (#31065) 2018-10-11 15:11:35 +00:00
AUTHORS Add Cristian Almstrand to AUTHORS 2015-07-16 09:51:56 -07:00
BUILD.gn [VM] Remove 'corelib' and 'dart-io' sources generation into C++ arrays 2018-10-02 23:27:05 +00:00
CHANGELOG.md linter 0.1.73 2018-11-28 00:19:52 +00:00
codereview.settings Update codereview.settings to Gerrit (dart-review.googlesource.com) 2017-09-04 12:52:09 +00:00
CONTRIBUTING.md Add CONTRIBUTING.md 2018-08-15 18:02:17 +00:00
dartdoc_options.yaml Add a 'Core' category for doc generation. 2018-06-07 14:47:41 +00:00
DEPS linter 0.1.73 2018-11-28 00:19:52 +00:00
LICENSE Remove the Dromaeo and TodoMVC samples. 2016-01-11 13:09:26 -08:00
PATENTS Move LICENSE, AUTHORS, PATENTS into the dart directory. 2014-02-10 06:48:47 +00:00
PRESUBMIT.py Remove the Dart 1 tests. 2018-10-11 23:45:18 +00:00
README.dart-sdk remove docgen from the sdk 2015-09-18 13:18:10 -07:00
README.md [gardening] Whitespace change to trigger bots. 2017-04-28 10:08:58 -07:00
WATCHLISTS [vm/compiler] Add VM Compiler Team WATCHLIST 2018-11-23 10:24:02 +00:00

README.md

Dart

Dart is an open-source, scalable programming language, with robust libraries and runtimes, for building web, server, and mobile apps.

Using Dart

Visit the dartlang.org to learn more about the language, tools, getting started, and more.

Browse pub.dartlang.org for more packages and libraries contributed by the community and the Dart team.

Building Dart

If you want to build Dart yourself, here is a guide to getting the source, preparing your machine to build the SDK, and building.

There are more documents on our wiki.

Contributing to Dart

The easiest way to contribute to Dart is to file issues.

You can also contribute patches, as described in Contributing.

License & patents

See LICENSE and PATENTS.