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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Avoid using the GOT when calling *_odr functions"
href="http://llvm.org/bugs/show_bug.cgi?id=19513">19513</a>
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<th>Summary</th>
<td>Avoid using the GOT when calling *_odr functions
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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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>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Common Code Generator Code
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>rafael.espindola@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Given
define linkonce_odr void @bar() {
ret void
}
define void @zed() {
call void @bar()
ret void
}
codegen will produce
callq bar@PLT
Since bar is *_odr, we know it is the same in every translation unit. CodeGen
could produce instead
.hidden bar_alias
bar_alias = bar
...
callq bar_alias
and avoid the PLT indirection.</pre>
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