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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Any code involving __builtin_wasm_throw cannot compile"
href="https://bugs.llvm.org/show_bug.cgi?id=39352">39352</a>
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</tr>
<tr>
<th>Summary</th>
<td>Any code involving __builtin_wasm_throw cannot compile
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>LLVM Codegen
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chen.pang.he@jdh8.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=21017" name="attach_21017" title="Compiler invocation">attachment 21017</a> <a href="attachment.cgi?id=21017&action=edit" title="Compiler invocation">[details]</a></span>
Compiler invocation
__builtin_wasm_throw is supposed to transform to @llvm.wasm.throw,
but it always chokes compilation.
Minimal example:
int main(void)
{
__builtin_wasm_throw(0, (void*)0);
}
Terminal output:
fatal error: error in backend: Cannot select: intrinsic %llvm.wasm.throw
clang-7: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 8.0.0 (<a href="https://github.com/llvm-mirror/clang.git">https://github.com/llvm-mirror/clang.git</a>
ab7073b16c4929d51075045579d4dada65a5d7f2)
(<a href="https://github.com/llvm-mirror/llvm.git">https://github.com/llvm-mirror/llvm.git</a>
5eae65a2bb3c2d8c86a7c911d1bd433ccd14ddd3)
Target: wasm32-unknown-unknown-wasm
Thread model: single
InstalledDir: /home/jdh8/build/llvm/bin
clang-7: note: diagnostic msg: PLEASE submit a bug report to
<a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash backtrace, preprocessed source,
and associated run script.
clang-7: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-7: note: diagnostic msg: /tmp/throw-9d7cde.c
clang-7: note: diagnostic msg: /tmp/throw-9d7cde.sh
clang-7: note: diagnostic msg:
********************</pre>
</div>
</p>
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