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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 segfault in pass "Merge disjoint stack slots""
href="http://llvm.org/bugs/show_bug.cgi?id=17642">17642</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llc segfault in pass "Merge disjoint stack slots"
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</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>Common Code Generator Code
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>writalnaie@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=11401" name="attach_11401" title="the llvm bitcode of benchkissu.ll">attachment 11401</a> <a href="attachment.cgi?id=11401&action=edit" title="the llvm bitcode of benchkissu.ll">[details]</a></span>
the llvm bitcode of benchkissu.ll
llc segfault in pass "Merge disjoint stack slots". The call stack:
llc: StackColoring.cpp:331: void
{anonymous}::StackColoring::calculateLocalLiveness(): Assertion `I !=
BlockLiveness.end() && "Predecessor not found"' failed.
0 llc 0x08e41fef llvm::sys::PrintStackTrace(_IO_FILE*) + 47
1 llc 0x08e4224f
2 llc 0x08e41c2c
3 0xb7735400 __kernel_sigreturn + 0
4 0xb7735424 __kernel_vsyscall + 16
5 libc.so.6 0xb7431b1f gsignal + 79
6 libc.so.6 0xb74350b3 abort + 323
7 libc.so.6 0xb742a877
8 libc.so.6 0xb742a927
9 llc 0x08a6500b
10 llc 0x08a6c244
11 llc 0x0897beb2
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 194
12 llc 0x08dc85dc llvm::FPPassManager::runOnFunction(llvm::Function&) +
796
13 llc 0x08dc8628 llvm::FPPassManager::runOnModule(llvm::Module&) + 56
14 llc 0x08dc8184 llvm::MPPassManager::runOnModule(llvm::Module&) + 676
15 llc 0x08dca0b3 llvm::PassManagerImpl::run(llvm::Module&) + 243
16 llc 0x08dca1b6 llvm::PassManager::run(llvm::Module&) + 38
17 llc 0x081c1154
18 llc 0x081ae01f main + 383
19 libc.so.6 0xb741c935 __libc_start_main + 245
20 llc 0x081bd839
Stack dump:
0. Program arguments: llc -O3 benchkissu.ll
1. Running pass 'Function Pass Manager' on module 'benchkissu.ll'.
2. Running pass 'Merge disjoint stack slots' on function '@main'
Aborted (core dumped)
It's in LLVM-3.3's released source code. The configuration includes only
"--enable-libffi". It segfaults when
$ llc -O3 benchkissu.ll</pre>
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