| commit | 0beba87ca7e531a4708f1192183d7fd70279dcff | [log] [tgz] |
|---|---|---|
| author | Daniel Lehmann <dlehmann@chromium.org> | Mon Dec 04 22:40:52 2023 |
| committer | V8 LUCI CQ <v8-scoped@luci-project-accounts.iam.gserviceaccount.com> | Tue Dec 05 11:54:24 2023 |
| tree | c4f29712815d7264decc430d90c9520fffab3749 | |
| parent | 02f1df5a60c3ac65fe57c0a33d4ccf0dcadd5acb [diff] |
[turboshaft][wasm] Use Abseil hash map for block phis ... and avoid re-finding the `block_phis_` just for `erase` by passing in an iterator instead. Together, when eagerly compiling all functions in PSWeb (~50MB of Wasm code), this reduces (measured locally, x64 workstation, N=20) the total number of CPU cycles as reported by perf stat and the reported elapsed compile time by ~0.5%. Zoomed in a bit further, it reduces the profiler samples spent in `BuildTSGraph` by ~10%. Change-Id: I40c69d4bdae6608802741d694571fbde5a3f96ac Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5079311 Reviewed-by: Manos Koukoutos <manoskouk@chromium.org> Commit-Queue: Daniel Lehmann <dlehmann@chromium.org> Cr-Commit-Position: refs/heads/main@{#91346}
V8 is Google's open source JavaScript engine.
V8 implements ECMAScript as specified in ECMA-262.
V8 is written in C++ and is used in Google Chrome, the open source browser from Google.
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