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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - llc segfaults on custom bc"
href="http://llvm.org/bugs/show_bug.cgi?id=18704">18704</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llc segfaults on custom bc
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>3.3
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<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>cplusplus328@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=11997" name="attach_11997" title="the file that causes the crash">attachment 11997</a> <a href="attachment.cgi?id=11997&action=edit" title="the file that causes the crash">[details]</a></span>
the file that causes the crash
I am tinkering with making my own compiler for my own language. Attached is a
bc file my frontend generates. This may be invalid input, but llc does not give
any error print besides a backtrace and segfault, so I can't figure out where
my error is if there is one.
I tried running the attached bc through llc and it crashed. bugpoint also
segfaults on the file.
Printed backtrace:
0 libLLVM-3.3.so.1 0x00002b843f3de382 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1 libLLVM-3.3.so.1 0x00002b843f3de711
2 libpthread.so.0 0x00002b843fe2fcb0
3 libLLVM-3.3.so.1 0x00002b843eae2a98
llvm::BitcodeReader::ParseFunctionBody(llvm::Function*) + 1672
4 libLLVM-3.3.so.1 0x00002b843eae7465
llvm::BitcodeReader::Materialize(llvm::GlobalValue*, std::string*) + 309
5 libLLVM-3.3.so.1 0x00002b843eae170d
llvm::BitcodeReader::MaterializeModule(llvm::Module*, std::string*) + 77
6 libLLVM-3.3.so.1 0x00002b843ed459fb
llvm::Module::MaterializeAllPermanently(std::string*) + 27
7 libLLVM-3.3.so.1 0x00002b843eae23e9
llvm::ParseBitcodeFile(llvm::MemoryBuffer*, llvm::LLVMContext&, std::string*) +
41
8 libLLVM-3.3.so.1 0x00002b843ede4b2c llvm::ParseIR(llvm::MemoryBuffer*,
llvm::SMDiagnostic&, llvm::LLVMContext&) + 396
9 libLLVM-3.3.so.1 0x00002b843ede51c9 llvm::ParseIRFile(std::string const&,
llvm::SMDiagnostic&, llvm::LLVMContext&) + 761
10 llc 0x000000000040a044
11 llc 0x0000000000409a81 main + 385
12 libc.so.6 0x00002b844036976d __libc_start_main + 237
13 llc 0x0000000000409af1
Stack dump:
0. Program arguments: llc example.bc -o -
Segmentation fault (core dumped)</pre>
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