[roots] Remove pseudo-smi stack limit roots

Stack limits were additionally maintained in pseudo-smi roots.
"Pseudo", because we stored the raw limit pointers there, just making
sure their values looked like smis by masking the least significant
bits.

This mechanism is no longer needed now that we can access the stack
limit external references as efficiently as the smi roots.

Bug: v8:9534
Change-Id: I37e78851c97aebc1012ea0e95075e56366a40a73
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1745339
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63183}
12 files changed
tree: 3f10ec2b246357eb1c7a3e6708b7d22b09174c5f
  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. .flake8
  18. .git-blame-ignore-revs
  19. .gitattributes
  20. .gitignore
  21. .gn
  22. .vpython
  23. .ycm_extra_conf.py
  24. AUTHORS
  25. BUILD.gn
  26. ChangeLog
  27. CODE_OF_CONDUCT.md
  28. codereview.settings
  29. COMMON_OWNERS
  30. DEPS
  31. ENG_REVIEW_OWNERS
  32. INFRA_OWNERS
  33. INTL_OWNERS
  34. LICENSE
  35. LICENSE.fdlibm
  36. LICENSE.strongtalk
  37. LICENSE.v8
  38. LICENSE.valgrind
  39. MIPS_OWNERS
  40. OWNERS
  41. PPC_OWNERS
  42. PRESUBMIT.py
  43. README.md
  44. S390_OWNERS
  45. 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://v8.dev/docs

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 at v8.dev/docs/contribute.