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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - DFG should not insert Phantoms in bytecode parsing or as part of transformations"
href="https://bugs.webkit.org/show_bug.cgi?id=143736#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - DFG should not insert Phantoms in bytecode parsing or as part of transformations"
href="https://bugs.webkit.org/show_bug.cgi?id=143736">bug 143736</a>
from <span class="vcard"><a class="email" href="mailto:fpizlo@apple.com" title="Filip Pizlo <fpizlo@apple.com>"> <span class="fn">Filip Pizlo</span></a>
</span></b>
<pre>I've hit a snag: backwards propagation needs to know when values are used by bytecode in strange ways. It currently looks like it might rely on Phantom to tell it that the bits of some value are all observed.
Ugh.</pre>
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