Stream: git-wasmtime

Topic: wasmtime / PR #1491 Optimize codegen in `Func::wrap`

Wasmtime GitHub notifications bot (Apr 09 2020 at 19:23):

alexcrichton opened PR #1491 from optimize-func-wrap to master:

This commit optimizes the codegen of Func::wrap such that if you do
something like Func::wrap(&store, || {}) then the shim generated
contains zero code (as expected). In general this means that the extra
tidbits generated by wasmtime are all eligible to be entirely optimized
away so long as you don't actually rely on something.

Wasmtime GitHub notifications bot (Apr 10 2020 at 16:28):

alexcrichton requested fitzgen for a review on PR #1491.

Wasmtime GitHub notifications bot (Apr 10 2020 at 17:35):

fitzgen submitted PR Review.

Wasmtime GitHub notifications bot (Apr 10 2020 at 17:35):

fitzgen submitted PR Review.

Wasmtime GitHub notifications bot (Apr 10 2020 at 17:35):

fitzgen created PR Review Comment:

Seems a little simpler/more concise as

debug_assert!(state.is::<(F, Store)>());
let (func, store) = &*(state as *const _ as *const (F, Store));

Wasmtime GitHub notifications bot (Apr 10 2020 at 17:51):

alexcrichton updated PR #1491 from optimize-func-wrap to master:

This commit optimizes the codegen of Func::wrap such that if you do
something like Func::wrap(&store, || {}) then the shim generated
contains zero code (as expected). In general this means that the extra
tidbits generated by wasmtime are all eligible to be entirely optimized
away so long as you don't actually rely on something.

Wasmtime GitHub notifications bot (Apr 10 2020 at 17:52):

alexcrichton merged PR #1491.

Last updated: Dec 23 2024 at 12:05 UTC