Disable relaxed atomics for v8 tests in the fuzzer#8199
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stevenfontanella merged 4 commits intomainfrom Jan 14, 2026
Merged
Disable relaxed atomics for v8 tests in the fuzzer#8199stevenfontanella merged 4 commits intomainfrom
stevenfontanella merged 4 commits intomainfrom
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| CLOSED_WORLD_FLAG = '--closed-world' | ||
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| DISALLOWED_FEATURES_IN_V8 = ['shared-everything', 'strings', 'stack-switching', 'relaxed-atomics'] |
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The other two files here set --disable-fp16, should that be here too?
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Good question. @brendandahl do you know the status of fp16 support in v8, or who to ask?
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V8 supports the whole current proposal and nothing has changed recently that I know of. However, the future of the proposal is still up in the air, so I'm not sure we should be fuzzing yet. Maybe @dtig has thoughts?
kripken
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Jan 13, 2026
kripken
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Jan 13, 2026
kripken
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Jan 13, 2026
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lgtm % last comment
We can decide on fp16 in a separate PR, to keep this one narrow.
kripken
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Jan 13, 2026
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Followup to #8169. Fixes the fuzzer which currently generates code with --enable-relaxed-atomics which isn't supported in v8. To test, I ran the fuzzer successfully for ~20 minutes locally.
Part of #8165.
In the future, we'll also add fuzzing support for relaxed atomics by generating acqrel instructions.