Andy Wingo | Igalia - Open Source Consultancy and Development

Andy Wingo

Andy Wingo

Hacker.

North Carolina (USA)

I enjoy practicing aikido in my free time – and hacking, of course!

POSTS

Mar 10, 2026

nominal types in webassembly

Before the managed data types extension to WebAssembly was incorporated in the standard, there was a huge debate about type equality. The end result is that if you have two...

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Feb 9, 2026

six thoughts on generating c

So I work in compilers, which means that I write programs that translate programs to programs. Sometimes you will want to target a language at a higher level than just,...

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Feb 6, 2026

ahead-of-time wasm gc in wastrel

Hello friends! Today, a quick note: the Wastrel ahead-of-time WebAssembly compiler now supports managed memory via garbage collection!hello, worldThe quickest demo I have is that you should check out and...

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Jan 5, 2026

pre-tenuring in v8

Hey hey happy new year, friends! Today I was going over some V8 code that touched pre-tenuring: allocating objects directly in the old space instead of the nursery. I knew...

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Media

Wingo on Wasm

Transcript & Links

The Whippet Embeddable Garbage Collection Library

The Whippet Embeddable Garbage Collection Library

Toots

i got “wastrel foo.wasm” working, for a wasm file produced by the hoot scheme compiler :) wheee

lol gcc’s tail call implementation is extraordinarily squirrely, it happily inlines functions that do tail calls but then dies because...

new very serious important post: on nominal typing in webassembly https://wingolog.org/archives/2026/03/10/nominal-types-in-webassembly

Commits

[Chromium V8] [platform][api] Refactor PlatformSharedMemoryHandle. Avoid possibility of type confusion with in...

[Chromium V8] [platform] Remove default values for parameters of virtual overrides These implementations shoul...

[Chromium V8] [isolate-groups] Free code range before reservation is freed In pointer-compression configuratio...

[Chromium V8] [isolate-groups] Attach CodeRange to IsolateGroup, not process For multi-cage configurations, we...