Version 7.3.15

Performance and stability improvements on all platforms.

TBR=v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com

Replace some assertions with their more verbose equivalent

Replaces some DCHECK with their verbose equivalent because it's more
convenient while debugging.

Change-Id: I83c199c389341a68dfccd949e7353ef68ff3b9c2
Reviewed-on: https://chromium-review.googlesource.com/c/1352289
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58013}
Revert "[wasm][liftoff] Optimize one-armed ifs"

This reverts commit c2aaf0a6fa659a8f41b778f3fca039ba62a32e74.

Reason for revert: Benchmarks fail, and ClusterFuzz is not happy (issue 911406, issue 911271)

Original change's description:
> [wasm][liftoff] Optimize one-armed ifs
> 
> Do not implement one-armed ifs by emulating an empty else branch. In
> Liftoff, we can generate better code and save compile time by handling
> this specially. If the merge point at the end of the if is not reached
> by the if-branch, we do not need to generate any merge code.
> 
> R=​titzer@chromium.org
> 
> Bug: v8:6600, v8:8423
> Change-Id: Ie8ea69dd7491f225605a8e1b986d275d869aa90b
> Reviewed-on: https://chromium-review.googlesource.com/c/1356508
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57968}

TBR=titzer@chromium.org,clemensh@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:6600, v8:8423
Change-Id: I5cb3b069f40e34f34da4013e666f6ff293752567
Reviewed-on: https://chromium-review.googlesource.com/c/1360633
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#58012}
Reviewed-on: https://chromium-review.googlesource.com/c/1360930
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/7.3.15@{#1}
Cr-Branched-From: 541894826b25c073a1bd82b9566aea96438c4f8f-refs/heads/master@{#58011}
10 files changed
tree: b45bdd5cba102dfc01fae2c76b6211d36192b4c8
  1. benchmarks/
  2. build_overrides/
  3. custom_deps/
  4. docs/
  5. gni/
  6. include/
  7. infra/
  8. samples/
  9. src/
  10. test/
  11. testing/
  12. third_party/
  13. tools/
  14. .clang-format
  15. .clang-tidy
  16. .editorconfig
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .gn
  21. .vpython
  22. .ycm_extra_conf.py
  23. AUTHORS
  24. BUILD.gn
  25. ChangeLog
  26. CODE_OF_CONDUCT.md
  27. codereview.settings
  28. DEPS
  29. LICENSE
  30. LICENSE.fdlibm
  31. LICENSE.strongtalk
  32. LICENSE.v8
  33. LICENSE.valgrind
  34. OWNERS
  35. PRESUBMIT.py
  36. README.md
  37. snapshot_toolchain.gni
  38. WATCHLISTS
README.md

V8 JavaScript Engine

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://github.com/v8/v8/wiki

Getting the Code

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/*

Contributing

Please follow the instructions mentioned on the V8 wiki.