Wasmtime GitHub notifications bot (Aug 05 2021 at 09:27): Wasmtime GitHub notifications bot (Aug 05 2021 at 09:27):sparker-arm edited PR #3128 from aarch64-atomics to main.
Wasmtime GitHub notifications bot (Aug 05 2021 at 09:28):sparker-arm edited PR #3128 from aarch64-atomics to main:
The AArch64 support was a bit broken and was using Armv7 style
barriers, which aren't required with Armv8 acquire-release
load/stores. The backend now pattern matches uextend(atomic_load) too.The fallback CAS loops and RMW, for AArch64, have also been updated
to use acquire-release, exclusive, instructions which, again, remove
the need for barriers. The CAS loop has also been further optimised
by using the extending form of the cmp instruction.Copyright (c) 2021, Arm Limited.
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Wasmtime GitHub notifications bot (Aug 06 2021 at 21:35):cfallin submitted PR review.
Wasmtime GitHub notifications bot (Aug 06 2021 at 21:38):cfallin merged PR #3128.
Last updated: Dec 23 2024 at 13:07 UTC