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@dkwingsmt dkwingsmt commented Jan 2, 2024

This PR reverts the following two PRs:

Effectively,

Illegal renders are... in debug build in release build
Before revert Skipped in Dart Skipped in Dart
After revert Skipped in Dart Passed in Dart and rendered in native

which means that the illegal renders will take effect in release mode, the mode that the benchmarks are performed in.

This is due to a discovery that the revert #49238 did not bring back the performance. We suspect that some other changes after the culprit (#47239) is also responsible for the regression, which narrows down to just one PR, #47323, which also makes sense. By reverting this change, we'll draw a final conclusion whether the regression is caused by illegal renders.

After this revert, the engine is in a temporary state due to the different behaviors between modes.

Pre-launch Checklist

  • I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • I read the Tree Hygiene wiki page, which explains my responsibilities.
  • I read and followed the Flutter Style Guide and the C++, Objective-C, Java style guides.
  • I listed at least one issue that this PR fixes in the description above.
  • I added new tests to check the change I am making or feature I am adding, or the PR is test-exempt. See testing the engine for instructions on writing and running engine tests.
  • I updated/added relevant documentation (doc comments with ///).
  • I signed the CLA.
  • All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel on Discord.

@dkwingsmt dkwingsmt merged commit 4325486 into flutter:main Jan 3, 2024
engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Jan 3, 2024
@dkwingsmt dkwingsmt deleted the revert-skip-illegal-render branch January 3, 2024 20:27
dkwingsmt added a commit to dkwingsmt/engine that referenced this pull request Jan 11, 2024
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2 participants