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Investigate acquire barrier on load zero #1

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opened 2026-05-16 22:35:58 +00:00 by andrew · 1 comment
andrew commented 2026-05-16 22:35:58 +00:00
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weaseldb/src/reference.hpp Line 58 in f458c6b249
uint32_t decrement_strong() noexcept {

We may only need an acquire barrier when loading zero. Check codegen on x86 and arm to see if it’s even different

https://git.weaselab.dev/weaselab/weaseldb/src/commit/f458c6b249b9f05e758ec6e530b6d69c030078b0/src/reference.hpp#L58 We may only need an acquire barrier when loading zero. Check codegen on x86 and arm to see if it’s even different
andrew commented 2026-05-17 20:50:09 +00:00
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TSAN does not currently support std::atomic_thread_fence

TSAN does not currently support std::atomic_thread_fence
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Reference: weaselab/weaseldb#1