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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - wasm64: unimplemented R_WASM_GLOBAL_INDEX_I64 using -generate-arange-section"
href="https://bugs.llvm.org/show_bug.cgi?id=52376">52376</a>
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<th>Summary</th>
<td>wasm64: unimplemented R_WASM_GLOBAL_INDEX_I64 using -generate-arange-section
</td>
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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
</td>
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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>aardappel@gmail.com, llvm-bugs@lists.llvm.org
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<pre>Created <span class=""><a href="attachment.cgi?id=25413" name="attach_25413" title="reduced bytecode">attachment 25413</a> <a href="attachment.cgi?id=25413&action=edit" title="reduced bytecode">[details]</a></span>
reduced bytecode
In compiling some Rust code this is a crash that I've been seeing when enabling
debug information. It looks like the Rust compiler by default will pass the
`-generate-aragne-section` argument to LLVM which causes this crash, and
avoiding passing that flag will work. I've attached the bugpoint-reduced
bitcode here to this issue and can reproduce the crash with:
$ llc -filetype=obj -o foo.o -generate-arange-section
./bugpoint-reduced-simplified.bc
unimplemented R_WASM_GLOBAL_INDEX_I64
UNREACHABLE executed at
/home/acrichto/code/rust/src/llvm-project/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyWasmObjectWriter.cpp:146!
PLEASE submit a bug report to <a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash
backtrace.
Stack dump:
...
I'll be updating the Rust compiler to avoid passing -generate-arange-section
now on the wasm64 target (temporarily), but figured it'd be good to open a bug
still!</pre>
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