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<body><span class="vcard"><a class="email" href="mailto:rnk@google.com" title="Reid Kleckner <rnk@google.com>"> <span class="fn">Reid Kleckner</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - memset() is optimised out even if followed by asm("":::"memory")"
href="https://llvm.org/bugs/show_bug.cgi?id=26997">bug 26997</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>rnk@google.com
</td>
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<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - memset() is optimised out even if followed by asm("":::"memory")"
href="https://llvm.org/bugs/show_bug.cgi?id=26997#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - memset() is optimised out even if followed by asm("":::"memory")"
href="https://llvm.org/bugs/show_bug.cgi?id=26997">bug 26997</a>
from <span class="vcard"><a class="email" href="mailto:rnk@google.com" title="Reid Kleckner <rnk@google.com>"> <span class="fn">Reid Kleckner</span></a>
</span></b>
<pre>Buf[1] through buf[255] is deleted as unused. The first element is register
allocated. The memory clobber then no longer affects buf because it is not in
memory. If you want it to, you need to escape buf somewhere. Looks like things
are working as intended.</pre>
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