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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - wasm32: atomic_notify intrinsic disagrees with Gecko/wabt implementations"
href="https://bugs.llvm.org/show_bug.cgi?id=38632">38632</a>
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<th>Summary</th>
<td>wasm32: atomic_notify intrinsic disagrees with Gecko/wabt implementations
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Backend: WebAssembly
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>alex@crichton.co
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<th>CC</th>
<td>dan433584@gmail.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>Currently the `llvm.wasm.atomic.notify` intrinsic in LLVM looks like:
declare i64 @llvm.wasm.atomic.notify(i32*, i64)
notable taking i64 for a number of waiters to wake up and returning an i64 for
the number of waiters notified. While this agrees with the current proposed
spec [1] it looks like it disagrees with wabt [2] and with Gecko's
implementation (I got validation errors in Firefox nightly).
Is this something that LLVM needs to update? Or should the spec be updated to
use i32?
[1]:
<a href="https://github.com/WebAssembly/threads/blob/master/proposals/threads/Overview.md">https://github.com/WebAssembly/threads/blob/master/proposals/threads/Overview.md</a>
[2]:
<a href="https://github.com/WebAssembly/wabt/blob/ffe92e6c57fe0ee356c5ae98d0ef0ac6ecfdee27/src/opcode.def#L382">https://github.com/WebAssembly/wabt/blob/ffe92e6c57fe0ee356c5ae98d0ef0ac6ecfdee27/src/opcode.def#L382</a></pre>
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