Nick Fitzgerald

Souper-synthesized optimizations that we should investigate generalizing and adding to the mid-end

8

Here are some synthesized optimizations for CLIF harvested from `spidermonkey.wasm` with explicit bounds checks enabled. I won't have time to investigate, generalize, or implement them before I go on vacation,...

Remove lazy `funcref` table init checking from codegen for `[return_]call_indirect`

12

Right now, whenever we do an indirect call, we have an extra branch in the codegen to check whether the table has been initialized or not yet. We have these...

It should be possible to add new widgets easily

https://github.com/TedDriggs/darling This could replace the `PredicateConfig` parsing code.

Investigate adding a change list ops for common attributes and listeners

2

The `"class"` and `"id"` attributes are used super frequently. We could have a `SetKnownAttribute` op that has an immediate that is an enum value for various common attributes instead of...

Probably slightly faster to use `lastChild` something like this: ```js const node = changeList.stack.pop(); const parent = node.parentNode; let last = parent.lastChild; while (last !== node) { last.remove(); last =...

Turn the `wasmtime-runtime` crate into the `wasmtime::runtime::vm` module

2

We want to merge them together because there is no abstraction or layering or boundary between them in practice, and our architectures and designs have, at times, been constrained by...

Similar to https://github.com/bytecodealliance/wasmtime/pull/8481 but for struct types instead of array types. Note that this is support for only defining these types in Wasm or the host; we don't support allocating...

Cranelift: Add a vcode peephole pass to the mach backend framework

6

(Fleshing out and jotting down for posterity an idea I floated and we collectively refined at a recent Cranelift meeting.) This peephole pass could run after regalloc, just before encoding...