[vm] When clearing ICData, also reset the megamorphic bit. After a reset due to reload, an ICData could end up with a single entry and have its megamorphic bit set with the MegamorphicCache having several entries. The compiler might specialize based on the ICData's single target and then insert guards based on the several classes in CallTargets. the Bug: https://github.com/dart-lang/sdk/issues/37548 Bug: https://github.com/dart-lang/sdk/issues/37575 Change-Id: I3c22517ffc8c6936fcb90c6f11b2af3ba96cadfe Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/109556 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
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 has 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 is free and open source.
Visit the dart.dev to learn more about the language, tools, getting started, and more.
Browse pub.dev for more packages and libraries contributed by the community and the Dart team.
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.
The easiest way to contribute to Dart is to file issues.
You can also contribute patches, as described in Contributing.