Stream: git-wasmtime

Topic: wasmtime / issue #2153 x64/newBE: improve lowering of CLI...

Wasmtime GitHub notifications bot (Oct 23 2024 at 22:07):

abrown closed issue #2153:

PR #2149 provides an initial implementation of wasm atomics with x64/newBE. That includes an initial lowering of CLIF AtomicRmw into a multi-instruction sequence that is general, but inefficient in the case where the old value at the location is not required, which is probably a common occurrence. In such cases we could do much better by producing a single LOCK-prefixed integer read-modify-write instruction, for example lock xorq $27, (amode).

Last updated: Dec 06 2025 at 06:05 UTC