| commit | 33e170ed56d9312ded79c9b5a799206c3115245e | [log] [tgz] |
|---|---|---|
| author | Daco Harkes <dacoharkes@google.com> | Thu Feb 03 14:35:56 2022 +0000 |
| committer | Commit Bot <commit-bot@chromium.org> | Thu Feb 03 14:35:56 2022 +0000 |
| tree | b736f1a5012a7b2032ccabde46aabf377837584b | |
| parent | 9df38b50da5f6442f51c903182da7880abc45fca [diff] |
[vm] Map key and value iterator speedup Duplicates `_CompactIterable` and `_CompactIterator` to `_CompactIterableImmutable` and `_CompactIteratorImmutable` to prevent the `_data` field to store both modifiable and unmodifiable lists. This speeds up iteration by about 20% (more info on the bug). Does not use mixins for code sharing, because all the fields need to be in the concrete classes anyway. Closes: https://github.com/dart-lang/sdk/issues/48280 TEST=existing lib tests Change-Id: I514d058d02ef3b26b475000daea3afc12f37c566 Cq-Include-Trybots: luci.dart.try:analyzer-nnbd-linux-release-try,app-kernel-linux-debug-x64-try,dart-sdk-linux-try,front-end-nnbd-linux-release-x64-try,pkg-linux-debug-try,vm-canary-linux-debug-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-checked-linux-release-x64-try,vm-kernel-linux-debug-x64c-try,vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-optcounter-threshold-linux-release-x64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64c-try,vm-kernel-reload-linux-debug-x64-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-tsan-linux-release-x64-try,vm-kernel-tsan-linux-release-x64-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/231243 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Daco Harkes <dacoharkes@google.com>
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