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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - xf86-video-intel) - memory starvation caused by flatten attribute for GCC with LTO"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77580">77580</a>
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</tr>
<tr>
<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Summary</th>
<td>xf86-video-intel) - memory starvation caused by flatten attribute for GCC with LTO
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>mliska@suse.cz
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/intel
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=97520" name="attach_97520" title="LTO patch">attachment 97520</a> <a href="attachment.cgi?id=97520&action=edit" title="LTO patch">[details]</a></span>
LTO patch
Hello,
I've been testing GCC 4.9 for a virtual gentoo machine and I noticed that
you us flatten attribute in source code. In case of src/sna/sna_glyphs.c
flatten functions, inliner inlines about 3.3M functions and crashes because of
no free memory (I have 8GB memory).
Please notice that LTO has ability to optimize whole program. As a result, it
sees almost all function bodies and that leads to enormous inlining.
Suggested patch removes these flatten attributes for selected functions.
Thank you,
MArtin</pre>
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