[vm/compiler] Use loop framework for register allocator

Rationale:
Rather than relying on a separate loop detector, rely
on the new loop framework, which avoids code duplication
and ensures any improvement in loop detection/handling
will benefit this phase too. Note, most of the time, the
same loops are discovered with a few exceptions (which
is okay, since this is "just" heuristic usage). This CL
also simplifies loop detection a bit.

https://github.com/dart-lang/sdk/issues/34473

Change-Id: I1a1b19b99a698c74822473d2a1fe370287c1ade4
Reviewed-on: https://dart-review.googlesource.com/c/80523
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
11 files changed
tree: 74ebe386505f66fd330b01747a7003070933c0fb
  1. .clang-format
  2. .gitattributes
  3. .gitconfig
  4. .github/
  5. .gitignore
  6. .gn
  7. .mailmap
  8. .packages
  9. .vpython
  10. AUTHORS
  11. BUILD.gn
  12. CHANGELOG.md
  13. CONTRIBUTING.md
  14. DEPS
  15. LICENSE
  16. PATENTS
  17. PRESUBMIT.py
  18. README.dart-sdk
  19. README.md
  20. WATCHLISTS
  21. build/
  22. client/
  23. codereview.settings
  24. dartdoc_options.yaml
  25. docs/
  26. pkg/
  27. runtime/
  28. samples-dev/
  29. samples/
  30. sdk/
  31. tests/
  32. third_party/
  33. tools/
  34. utils/
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.