commit | 8c33e289b5699958ae929f4f0691544656a33b22 | [log] [tgz] |
---|---|---|
author | Jakob Gruber <jgruber@chromium.org> | Thu May 16 13:30:19 2019 |
committer | Commit Bot <commit-bot@chromium.org> | Thu May 16 14:39:19 2019 |
tree | 4f545706ff74f1d4e0559c4c7a6ec8ca28527a8c | |
parent | ba7b25e50f2e1845d5054472c335ef355d56a4b2 [diff] |
[coverage] Enable optimizations in block coverage modes Now that function counts are based on dedicated call counters instead of FeedbackVector::invocation_count, we can enable optimizations for block coverage modes. This significantly speeds up V8 with enabled coverage: Before this CL, the web-tooling-benchmark regressed by 70% (block count coverage vs. no coverage). With this CL, the regression is reduced to 40%. Bug: v8:6000,v8:9148 Change-Id: I6bb538bd66f32f016c66c1d1996bce3b25958232 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1615241 Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#61582}
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.
V8 can run standalone, or can be embedded into any C++ application.
V8 Project page: https://v8.dev/docs
Checkout depot tools, and run
fetch v8
This will checkout V8 into the directory v8
and fetch all of its dependencies. To stay up to date, run
git pull origin gclient sync
For fetching all branches, add the following into your remote configuration in .git/config
:
fetch = +refs/branch-heads/*:refs/remotes/branch-heads/* fetch = +refs/tags/*:refs/tags/*
Please follow the instructions mentioned at v8.dev/docs/contribute.