2062374 - Ship the Wide Arithmetic proposal

Status: RESOLVED FIXED

(Core :: JavaScript: WebAssembly, task)

Description

[Ben Visness [:bvisness]]

The wide arithmetic proposal moved to phase 4 at the recent CG meeting: https://github.com/WebAssembly/wide-arithmetic/issues/47

We can now ship it.

Comment 1

[Ben Visness [:bvisness]]

Attachment: Bug 2062374: Ship the Wasm Wide Arithmetic proposal. r=rhunt

Comment 2

[Ben Visness [:bvisness]]

Attachment: Bug 2062374: Include wide-arithmetic spec tests. r=rhunt

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/0161cbbefce2
https://hg.mozilla.org/integration/autoland/rev/2cb93d84eb27
Ship the Wasm Wide Arithmetic proposal. r=rhunt
https://github.com/mozilla-firefox/firefox/commit/14ead2b9e537
https://hg.mozilla.org/integration/autoland/rev/7cc2b9a03646
Include wide-arithmetic spec tests. r=rhunt

Comment 4

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/2cb93d84eb27
https://hg.mozilla.org/mozilla-central/rev/7cc2b9a03646

Comment 5

[Ben Visness [:bvisness]]

Release Note Request (optional, but appreciated)
[Why is this notable]: Built-in 128-bit arithmetic instructions allow for much better performance in applications such as arbitrary-precision math and cryptography, and enable more efficient overflow checking.
[Affects Firefox for Android]: yes
[Suggested wording]: Firefox now supports the WebAssembly Wide Arithmetic proposal, which adds 128-bit arithmetic instructions for better performance on some workloads.
[Links (documentation, blog post, etc)]: Overview: https://github.com/WebAssembly/wide-arithmetic/blob/main/proposals/wide-arithmetic/Overview.md

Comment 6

[Ryan VanderMeulen [:RyanVM]]

Added to the Fx155 relnotes.

Comment 7

[Chris Mills [:cmills]]

Feature documented on MDN; see https://github.com/mdn/content/pull/45320.