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<head>
<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang-10 -gdwarf-5 fails with WebAssembly output"
href="https://bugs.llvm.org/show_bug.cgi?id=44728">44728</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang-10 -gdwarf-5 fails with WebAssembly output
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>10.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>Backend: WebAssembly
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ggreif@gmail.com
</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=23075" name="attach_23075" title="Reproduction artefacts">attachment 23075</a> <a href="attachment.cgi?id=23075&action=edit" title="Reproduction artefacts">[details]</a></span>
Reproduction artefacts
-gdwarf-4 works
-gdwarf-5 crashes.
relevant snippet
```
6 libsystem_platform.dylib 0x00007ffee90d3d60 _sigtramp + 18446744071613513248
7 libLLVM.dylib 0x0000000109c5636e
llvm::DwarfDebug::finishUnitAttributes(llvm::DICompileUnit const*,
llvm::DwarfCompileUnit&) + 398
8 libLLVM.dylib 0x0000000109c54a70
llvm::DwarfDebug::getOrCreateDwarfCompileUnit(llvm::DICompileUnit const*) + 896
9 libLLVM.dylib 0x0000000109c573bb llvm::DwarfDebug::beginModule()
+ 1947
10 libLLVM.dylib 0x0000000109c2709d
llvm::AsmPrinter::doInitialization(llvm::Module&) + 1341
11 libLLVM.dylib 0x00000001096043a1
llvm::FPPassManager::doInitialization(llvm::Module&) + 49
12 libLLVM.dylib 0x0000000109604671
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 593
13 libclang-cpp.dylib 0x00000001079a24df
clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions
const&, clang::CodeGenOptions const&, clang::TargetOptions const&,
clang::LangOptions const&, llvm::DataLayout const&, llvm::Module*,
clang::BackendAction, std::__1::unique_ptr<llvm::raw_pwrite_stream,
std::__1::default_delete<llvm::raw_pwrite_stream> >) + 14415
14 libclang-cpp.dylib 0x0000000107c66d44
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) + 1044
15 libclang-cpp.dylib 0x0000000106c6d513 clang::ParseAST(clang::Sema&,
bool, bool) + 659
16 libclang-cpp.dylib 0x000000010841adb8 clang::FrontendAction::Execute()
+ 168
```</pre>
</div>
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