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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - GCC memory starvation caused by flatten attribute with LTO"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77580#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - GCC memory starvation caused by flatten attribute with LTO"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77580">bug 77580</a>
from <span class="vcard"><a class="email" href="mailto:main.haarp@gmail.com" title="main.haarp@gmail.com">main.haarp@gmail.com</a>
</span></b>
<pre>(In reply to Patrick McMunn from <a href="show_bug.cgi?id=77580#c5">comment #5</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=125089" name="attach_125089" title="Patch to allow LTO optmization of xf86-video-intel">attachment 125089</a> <a href="attachment.cgi?id=125089&action=edit" title="Patch to allow LTO optmization of xf86-video-intel">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=77580&attachment=125089'>[review]</a> [review]
> Patch to allow LTO optmization of xf86-video-intel
> </span >
Nice work! This allows building with LTO on gcc-4.9. gcc-5.3.0 however fails to
build it, throwing a bunch of these around:
/usr/include/bits/string3.h:50:1: error: inlining failed in call to
always_inline ‘memcpy’: target specific option mismatch
Also, unlike your P4, I cannot detect any measurable performance improvements
(Intel Sandy Bridge). Unfortunate.
All tests done with xf86-video-intel from today's git.</pre>
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