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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Segfault/invalid free in llc for R600"
href="http://llvm.org/bugs/show_bug.cgi?id=22207">22207</a>
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<th>Summary</th>
<td>Segfault/invalid free in llc for R600
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>pablo.barrio@arm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Unit test llvm.dev.src/test/CodeGen/R600/infinite-loop-evergreen.ll segfaults.
If a new llvm is built with the first llvm, then the same unit test segfaults
with a glibc invalid pointer error.
All builds are in Release mode.
Steps to reproduce the error:
1. Build LLVM r225260 and Clang r225247 into directory e.g. obj1
2. Build a new LLVM/Clang with the previously built compiler into e.g. obj2
3. obj1/bin/llc -march=r600 -mcpu=cypress
llvm.dev.src/test/CodeGen/R600/infinite-loop-evergreen.ll
4. obj2/bin/llc -march=r600 -mcpu=cypress
llvm.dev.src/test/CodeGen/R600/infinite-loop-evergreen.ll
Step 3 segfaults, Step 4 segfaults and shows the glibc error.</pre>
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