wasmtime / PR #13407 Move `table.copy` implementation to ... · git-wasmtime

Stream: git-wasmtime

Topic: wasmtime / PR #13407 Move `table.copy` implementation to ...

Wasmtime GitHub notifications bot (May 19 2026 at 05:54):

alexcrichton opened PR #13407 from alexcrichton:refactor-table-copy to bytecodealliance:main:

This commit is the dual of https://github.com/bytecodealliance/wasmtime/pull/13382 but for tables. The goal here is to
move the copying operation into WebAssembly to enable fuel/epoch
checking during larger copies (https://github.com/bytecodealliance/wasmtime/issues/13387). This additionally enables
removing quite a lot of library code to implement this in the host.
Finally, most of the code to do this was already implemented for
compilation, so much of this PR focuses on refactoring all of that to
reuse all of the existing logic in a way that table support "falls out
by default".

Note: the first commit here comes from #13394 for now.

Wasmtime GitHub notifications bot (May 19 2026 at 05:54):

alexcrichton requested cfallin for a review on PR #13407.

Wasmtime GitHub notifications bot (May 19 2026 at 05:54):

alexcrichton requested wasmtime-compiler-reviewers for a review on PR #13407.

Wasmtime GitHub notifications bot (May 19 2026 at 05:54):

alexcrichton requested wasmtime-core-reviewers for a review on PR #13407.

Wasmtime GitHub notifications bot (May 19 2026 at 07:56):

github-actions[bot] added the label cranelift on PR #13407.

Wasmtime GitHub notifications bot (May 19 2026 at 07:56):

github-actions[bot] added the label wasmtime:api on PR #13407.

Wasmtime GitHub notifications bot (May 19 2026 at 07:56):

github-actions[bot] added the label wasmtime:ref-types on PR #13407.

Wasmtime GitHub notifications bot (May 19 2026 at 07:56):

github-actions[bot] commented on PR #13407:

Subscribe to Label Action

cc @fitzgen

<details>
This issue or pull request has been labeled: "cranelift", "wasmtime:api", "wasmtime:ref-types"

Thus the following users have been cc'd because of the following labels:

fitzgen: wasmtime:ref-types

To subscribe or unsubscribe from this label, edit the <code>.github/subscribe-to-label.json</code> configuration file.

Learn more.
</details>