| commit | c6362da2413084b05372d588744394e02548eac2 | [log] [tgz] |
|---|---|---|
| author | Ömer Sinan Ağacan <omersa@google.com> | Thu Nov 21 12:59:47 2024 +0000 |
| committer | Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> | Thu Nov 21 12:59:47 2024 +0000 |
| tree | 9fc2ad900f8cf260a46548a3483fa608339dbb05 | |
| parent | c5b509035101ef3dada4d7351dcf94a6854003f1 [diff] |
[dart2wasm] Convert UTF-8 chunks to U8List before decoding Currently `convertSingle` converts the input to `U8List`, but `convertChunked` works on `Uint8List`. This makes functions common in both (`decode8`, `decode16`) polymorphic in input. Update `convertChunked` to also convert the input to `U8List`. With this `decode8` and `decode16` becomes monomorphic in the input type. Also update array accesses in these methods to avoid bounds checks. Check for a few fast cases in `List<int>` to `U8List` copying. If the list is a `WasmI8ArrayBase` (used in typed data) or `WasmListBase` (used in lists), we avoid polymorphism, indirections, and bounds checks during copying. Golem reports up to 600% improvement in some chunked parsing micro- benchmarks. Change-Id: Iddf6dae1a5d77cf574be77313dff779b4715e283 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/395980 Commit-Queue: Ömer Ağacan <omersa@google.com> Reviewed-by: Slava Egorov <vegorov@google.com>
Dart is:
Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.
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