Find a file
Clement Skau 4d5055805f [VM/FFI] Adds FFI leaf calls.
This CL adds FFI leaf calls by adding `lookupFunction(.., isLeaf)`
and `_asFunctionInternal(.., isLeaf)`, which generate FFI leaf calls.
These calls skip a lot of the usual frame building and generated <->
native transition overhead.

`benchmark/FfiCall/` shows a 1.1x - 4.3x speed-up between the regular
FFI calls and their leaf call counterparts (JIT, x64, release).

TEST=Adds `tests/ffi{,_2}/vmspecific_leaf_call_test.dart`. Tested FFI tests.

Closes: https://github.com/dart-lang/sdk/issues/36707
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-release-arm64-try,vm-ffi-android-release-arm-try,vm-ffi-android-product-arm64-try,vm-ffi-android-product-arm-try,vm-ffi-android-debug-arm64-try,vm-ffi-android-debug-arm-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-kernel-precomp-nnbd-mac-release-simarm64-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-linux-release-simarm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,vm-kernel-precomp-ubsan-linux-release-x64-try,vm-kernel-precomp-tsan-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-reload-linux-debug-x64-try
Bug: https://github.com/dart-lang/sdk/issues/36707
Change-Id: Id8824f36b0006bf09951207bd004356fe6e9f46e
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/179768
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-05-21 11:12:02 +00:00
.dart_tool [wasm] Prepare for release 2021-05-20 20:40:15 +00:00
.github "dartfmt" -> "dart format" in issue template. 2021-05-19 00:39:43 +00:00
benchmarks [VM/FFI] Adds FFI leaf calls. 2021-05-21 11:12:02 +00:00
build [infra] Fix vs_toolchain.py 2021-05-21 11:04:22 +00:00
client
docs Minor fixes to breaking change process 2021-01-15 21:44:22 +00:00
pkg [VM/FFI] Adds FFI leaf calls. 2021-05-21 11:12:02 +00:00
runtime [VM/FFI] Adds FFI leaf calls. 2021-05-21 11:12:02 +00:00
samples [VM/FFI] Adds FFI leaf calls. 2021-05-21 11:12:02 +00:00
samples-dev/swarm [infra] Migrate scripts to python3 2021-04-15 10:10:20 +00:00
samples_2 [VM/FFI] Adds FFI leaf calls. 2021-05-21 11:12:02 +00:00
sdk [VM/FFI] Adds FFI leaf calls. 2021-05-21 11:12:02 +00:00
tests [VM/FFI] Adds FFI leaf calls. 2021-05-21 11:12:02 +00:00
third_party Removed 7zip from Windows distribution of the Dart SDK 2021-05-12 14:50:50 +00:00
tools also analyze flutter samples in doc comments 2021-05-20 22:09:55 +00:00
utils Revert "[build] Use an absolute path for the snapshot." 2021-05-21 06:15:38 +00:00
.clang-format
.gitattributes [web] rename suite dart2js -> web. 2021-02-04 23:11:32 +00:00
.gitconfig
.gitignore [vm] Remove traces of LLVM backend 2021-03-09 20:37:20 +00:00
.gn [infra] Migrate scripts to python3 2021-04-15 10:10:20 +00:00
.mailmap
.packages add package:lints to the sdk DEPS 2021-05-17 19:53:22 +00:00
.style.yapf
.vpython
AUTHORS
BUILD.gn [sdk] Add analysis_server.dart.snapshot to ARM SDKs. 2021-03-19 12:03:48 +00:00
CHANGELOG.md [release] Add release notes for 2.13.1 2021-05-21 10:42:11 +00:00
codereview.settings
CONTRIBUTING.md [doc] Updated dart.dev web repo link 2021-02-22 12:15:22 +00:00
DEPS add the frontend_server_client package to the sdk 2021-05-20 17:44:35 +00:00
LICENSE Update LICENSE 2021-04-08 07:57:10 +00:00
PATENT_GRANT
PRESUBMIT.py Add gclient sync to package_config.json presubmit message 2021-02-12 01:44:47 +00:00
README.dart-sdk
README.md
sdk_args.gni [infra] Fix default path to git directory when running GN 2021-03-16 16:58:49 +00:00
WATCHLISTS Add myself to watch for tools/experimental_features.yaml changes. 2021-03-19 18:09:38 +00:00

Dart

A client-optimized language for fast apps on any platform

Dart is:

  • Optimized for UI: Develop with a programming language specialized around the needs of user interface creation.

  • Productive: Make changes iteratively: use hot reload to see the result instantly in your running app.

  • Fast on all platforms: Compile to ARM & x64 machine code for mobile, desktop, and backend. Or compile to JavaScript for the web.

Dart's flexible compiler technology lets you run Dart code in different ways, depending on your target platform and goals:

  • Dart Native: For programs targeting devices (mobile, desktop, server, and more), Dart Native includes both a Dart VM with JIT (just-in-time) compilation and an AOT (ahead-of-time) compiler for producing machine code.

  • Dart Web: For programs targeting the web, Dart Web includes both a development time compiler (dartdevc) and a production time compiler (dart2js).

Dart platforms illustration

License & patents

Dart is free and open source.

See LICENSE and PATENT_GRANT.

Using Dart

Visit dart.dev to learn more about the language, tools, and to find codelabs.

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

Our API reference documentation is published at api.dart.dev, based on the stable release. (We also publish docs from our beta and dev channels, as well as from the primary development branch).

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.