Stream: git-wasmtime

Topic: wasmtime / PR #10458 Avoid some unnecessary reduces and e...

Wasmtime GitHub notifications bot (Mar 21 2025 at 22:51):

fitzgen opened PR #10458 from fitzgen:gc-ref-libcalls-u32-abi to bytecodealliance:main:

We are logically returning a VMGcRef from these libcalls, which is a NonZeroU32 under the covers. We were representing that value as a u32, and then to represent traps and panics, we packed that into a u64 and if the u64 was negative that meant there was a trap/panic but otherwise we could unpack the bottom half and that was our result.

But because our GC refs are non-zero, we don't need to extend to a u64 to get a sentinel for traps/panics; we can just use zero. That's what this commit does.

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Wasmtime GitHub notifications bot (Mar 21 2025 at 22:51):

fitzgen requested dicej for a review on PR #10458.

Wasmtime GitHub notifications bot (Mar 21 2025 at 22:51):

fitzgen requested wasmtime-core-reviewers for a review on PR #10458.

Wasmtime GitHub notifications bot (Mar 21 2025 at 23:44):

github-actions[bot] commented on PR #10458:

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Wasmtime GitHub notifications bot (Mar 21 2025 at 23:54):

alexcrichton submitted PR review.

Wasmtime GitHub notifications bot (Mar 22 2025 at 00:16):

alexcrichton merged PR #10458.

Last updated: Dec 13 2025 at 19:03 UTC