| commit | 861295bf167f045a3323fac086261b8bb264f8b3 | [log] [tgz] |
|---|---|---|
| author | bmeurer <[email protected]> | Fri Apr 22 08:39:30 2016 |
| committer | Commit bot <[email protected]> | Fri Apr 22 08:40:05 2016 |
| tree | 610581c3d13c46f5c3dc7bded07eb6f2961756cf | |
| parent | fa8bac650f5264554d65cef3a67e12b81a1adfd5 [diff] |
[turbofan] Optimize tagged conversion based on type. If we have to convert a float64 value to tagged representation and we already know that the value is either in Signed31/Signed32 or Unsigned32 range, then we can just convert the float64 to word32 and use the fast word32 to tagged conversion. Doing this in ChangeLowering (or the effect linearization pass) would be unsound, as the types on the nodes are no longer usable. This removes all Type uses from effect linearization. There's still some work to be done for ChangeLowering tho. [email protected] Review URL: https://codereview.chromium.org/1908093002 Cr-Commit-Position: refs/heads/master@{#35713}
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
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 on the V8 wiki.