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<base href="https://llvm.org/bugs/" />
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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 --- - Segmentation fault in llvm-as inside LLParser::ParseValueAsMetadata"
href="https://llvm.org/bugs/show_bug.cgi?id=24645">24645</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Segmentation fault in llvm-as inside LLParser::ParseValueAsMetadata
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</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>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kschimpf@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>When you run:
echo ' !3=! {%..d04 *asm" !6!={!H)4" ,"" ' | llvm-as - -o /dev/null
You get the following:
#0 0x667656 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/workspace/llvm-dev/install/bin/llvm-as+0x667656)
#1 0x66796b PrintStackTraceSignalHandler(void*)
(/workspace/llvm-dev/install/bin/llvm-as+0x66796b)
#2 0x6660e7 llvm::sys::RunSignalHandlers()
(/workspace/llvm-dev/install/bin/llvm-as+0x6660e7)
#3 0x6665be SignalHandler(int)
(/workspace/llvm-dev/install/bin/llvm-as+0x6665be)
#4 0x7fd548e92340 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x10340)
#5 0x415166 llvm::Type::getSubclassData() const
(/workspace/llvm-dev/install/bin/llvm-as+0x415166)
#6 0x41555e llvm::FunctionType::isVarArg() const
(/workspace/llvm-dev/install/bin/llvm-as+0x41555e)
#7 0x5878a4 llvm::InlineAsm::Verify(llvm::FunctionType*, llvm::StringRef)
(/workspace/llvm-dev/install/bin/llvm-as+0x5878a4)
#8 0x4318c2 llvm::LLParser::ConvertValIDToValue(llvm::Type*, llvm::ValID&,
llvm::Value*&, llvm::LLParser::PerFunctionState*)
(/workspace/llvm-dev/install/bin/llvm-as+0x4318c2)
#9 0x43235a llvm::LLParser::ParseValue(llvm::Type*, llvm::Value*&,
llvm::LLParser::PerFunctionState*)
(/workspace/llvm-dev/install/bin/llvm-as+0x43235a)
#10 0x4314eb llvm::LLParser::ParseValueAsMetadata(llvm::Metadata*&, llvm::Twine
const&, llvm::LLParser::PerFunctionState*)
(/workspace/llvm-dev/install/bin/llvm-as+0x4314eb)
#11 0x4315c0 llvm::LLParser::ParseMetadata(llvm::Metadata*&,
llvm::LLParser::PerFunctionState*)
(/workspace/llvm-dev/install/bin/llvm-as+0x4315c0)
#12 0x43b109
llvm::LLParser::ParseMDNodeVector(llvm::SmallVectorImpl<llvm::Metadata*>&)
(/workspace/llvm-dev/install/bin/llvm-as+0x43b109)
#13 0x427835 llvm::LLParser::ParseMDTuple(llvm::MDNode*&, bool)
(/workspace/llvm-dev/install/bin/llvm-as+0x427835)
#14 0x41ce3e llvm::LLParser::ParseStandaloneMetadata()
(/workspace/llvm-dev/install/bin/llvm-as+0x41ce3e)
#15 0x41b3f6 llvm::LLParser::ParseTopLevelEntities()
(/workspace/llvm-dev/install/bin/llvm-as+0x41b3f6)
#16 0x41a216 llvm::LLParser::Run()
(/workspace/llvm-dev/install/bin/llvm-as+0x41a216)
#17 0x408307 llvm::parseAssemblyInto(llvm::MemoryBufferRef, llvm::Module&,
llvm::SMDiagnostic&, llvm::SlotMapping*)
(/workspace/llvm-dev/install/bin/llvm-as+0x408307)
#18 0x4083f1 llvm::parseAssembly(llvm::MemoryBufferRef, llvm::SMDiagnostic&,
llvm::LLVMContext&, llvm::SlotMapping*)
(/workspace/llvm-dev/install/bin/llvm-as+0x4083f1)
#19 0x40873c llvm::parseAssemblyFile(llvm::StringRef, llvm::SMDiagnostic&,
llvm::LLVMContext&, llvm::SlotMapping*)
(/workspace/llvm-dev/install/bin/llvm-as+0x40873c)
#20 0x4055f6 main (/workspace/llvm-dev/install/bin/llvm-as+0x4055f6)
#21 0x7fd5482beec5 __libc_start_main
/build/buildd/eglibc-2.19/csu/libc-start.c:321:0
#22 0x404579 _start (/workspace/llvm-dev/install/bin/llvm-as+0x404579)
Stack dump:
0. Program arguments: llvm-as - -o /dev/null
Segmentation fault</pre>
</div>
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