Revert "[Interpreter] Ensure Test*Handler don't allocate a frame for fast-path."

This reverts commit d6121fd1a32fdbba108a3f927a119637bfef4cc2.

Reason for revert: Fails cctest/test-cpu-profiler/Inlining2 on arm64-sim:

Original change's description:
> [Interpreter] Ensure Test*Handler don't allocate a frame for fast-path.
> Avoids allocating a frame for the fast-path in TestEqual, TestEqualStrict and
> TestLess/GreaterThan bytecode handlers. Also changes how feedback is tracked
> to try and avoid needing to keep feedback to "combine" with if it's unecessary
> which reduces the liveranges of the registers holding this data.
> This reduces the time needed for a tight loop in Ignition (e.g.,
> while (i < 1000000000) ++i;) from 12.8s to 10.8s.
> BUG=v8:9133
> Change-Id: I686b9da89541d15d233635db3276de3dad2fa282
> Reviewed-on:
> Reviewed-by: Jakob Gruber <>
> Commit-Queue: Ross McIlroy <>
> Cr-Commit-Position: refs/heads/master@{#60906},

Change-Id: I5e53138929bf1fae9f57f9dd023d258bb7d557ac
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9133
Reviewed-by: Clemens Hammacher <>
Commit-Queue: Clemens Hammacher <>
Cr-Commit-Position: refs/heads/master@{#60907}
1 file changed
tree: e090086e04e6127e64280339fe694301cbc8a8be
  1. .clang-format
  2. .clang-tidy
  3. .editorconfig
  4. .git-blame-ignore-revs
  5. .gitattributes
  6. .gitignore
  7. .gn
  8. .vpython
  13. ChangeLog
  14. DEPS
  16. LICENSE.fdlibm
  17. LICENSE.strongtalk
  18. LICENSE.v8
  19. LICENSE.valgrind
  20. OWNERS
  24. benchmarks/
  25. build_overrides/
  26. codereview.settings
  27. custom_deps/
  28. docs/
  29. gni/
  30. include/
  31. infra/
  32. samples/
  33. snapshot_toolchain.gni
  34. src/
  35. test/
  36. testing/
  37. third_party/
  38. tools/

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:

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/*


Please follow the instructions mentioned at