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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - opt and llc hang trying to parse unspecified string options"
href="http://llvm.org/bugs/show_bug.cgi?id=20129">20129</a>
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<tr>
<th>Summary</th>
<td>opt and llc hang trying to parse unspecified string options
</td>
</tr>
<tr>
<th>Product</th>
<td>tools
</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>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>opt
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>spatel+llvm@rotateright.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>Using tools built from r211521:
$ ./clang -v
clang version 3.5.0 (211521)
Target: x86_64-apple-darwin13.2.0
Thread model: posix
$ cat test.ll
define i32 @main() #0 {
entry:
ret i32 0
}
$ ./opt -extract-blocks-file test.ll
^C
(hang)
$ ./llc -break-anti-dependencies test.ll
^C
(hang)
But when passed via clang, we get:
$ ./clang -mllvm -extract-blocks-file test.ll
clang (LLVM option parsing): for the -extract-blocks-file option: requires a
value!
$ ./clang -mllvm -break-anti-dependencies test.ll
clang (LLVM option parsing): for the -break-anti-dependencies option: requires
a value!</pre>
</div>
</p>
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