Issues from today's meeting · cranelift

Stream: cranelift

Topic: Issues from today's meeting

Alex Crichton (Apr 05 2023 at 20:46):

For those interested, I opened 2 issues related to what I was talking about in today's meeting:

https://github.com/bytecodealliance/wasmtime/issues/6154 - the jump threading and v128.load32_splat issue
https://github.com/bytecodealliance/wasmtime/issues/6159 - a broader issue about instruction scheduling (I think at least)

Cranelift, egraphs, jump threading, and missed lowering rules · Issue #6154 · bytecodealliance/wasmtime

At a high level this is a pretty simple issue where this module: (module (memory 1) (func (param i32) (result v128) local.get 0 v128.load32_splat ) ) generates this code by default on x86_64: $ car...

Cranelift and suboptimal instruction scheduling · Issue #6159 · bytecodealliance/wasmtime

I did a bit of work recently to get a build of XNNPACK working with Wasmtime. My original motivation for doing this was that XNNPACK has been used as a benchmark to evaluate a number of changes to ...

Last updated: Dec 23 2024 at 13:07 UTC