| commit | 8e5af6217e26728b445833483fb3754bff97844c | [log] [tgz] |
|---|---|---|
| author | Alexander Markov <alexmarkov@google.com> | Fri Mar 04 16:27:40 2022 +0000 |
| committer | Commit Bot <commit-bot@chromium.org> | Fri Mar 04 16:27:40 2022 +0000 |
| tree | 1fdb37653ae24e2d67b4b47b9067dbb8869b6503 | |
| parent | 46c805ea1821b4991b1fa3c36c7f4e02d80a8921 [diff] |
[vm/compiler] Revise heuristic for huge methods Previously, compiler looked at the size of Dart source code when deciding that the method is huge and needs to be compiled with less optimizations. That size includes comments and nested closures, so it is very inaccurate and the heuristic had false positives seen in practice. This change revises the heuristic to look at number of kernel AST nodes, which are counted during building of flow graph. This change also introduces --print_huge_methods option which shows the warning if method is huge and compiled with less optimizations. TEST=manually verified that huge method from https://github.com/flutter/flutter/issues/94461 is printed when --print_huge_methods option is specified. Issue: https://github.com/dart-lang/sdk/issues/48495 Issue: https://github.com/dart-lang/sdk/issues/48284 Change-Id: I81188b0cc3c147423e9cee91f2a6f544d60d319b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/235173 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com>
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