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<body><span class="vcard"><a class="email" href="mailto:msaboff@apple.com" title="Michael Saboff <msaboff@apple.com>"> <span class="fn">Michael Saboff</span></a>
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<a class="bz_bug_link
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title="ASSIGNED - REGRESSION(r190289): It made Speedometer/Full.html performance test fail"
href="https://bugs.webkit.org/show_bug.cgi?id=149621">bug 149621</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Assignee</td>
<td>webkit-unassigned@lists.webkit.org
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<td>msaboff@apple.com
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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - REGRESSION(r190289): It made Speedometer/Full.html performance test fail"
href="https://bugs.webkit.org/show_bug.cgi?id=149621#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - REGRESSION(r190289): It made Speedometer/Full.html performance test fail"
href="https://bugs.webkit.org/show_bug.cgi?id=149621">bug 149621</a>
from <span class="vcard"><a class="email" href="mailto:msaboff@apple.com" title="Michael Saboff <msaboff@apple.com>"> <span class="fn">Michael Saboff</span></a>
</span></b>
<pre>A little more detail. We are calling a function that makes a varargs tail call. When the FTL makes a tail call and it needs to take the slow path, it doesn't properly restore the callee save registers. Moved the restoration of callee saves to common path before deciding to take the fast or slow path.</pre>
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