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<body><span class="vcard"><a class="email" href="mailto:jordan_rose@apple.com" title="Jordan Rose <jordan_rose@apple.com>"> <span class="fn">Jordan Rose</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WONTFIX - False positive in checker: Function call argument is an uninitialized value"
href="http://llvm.org/bugs/show_bug.cgi?id=16400">bug 16400</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
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<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>WONTFIX
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WONTFIX - False positive in checker: Function call argument is an uninitialized value"
href="http://llvm.org/bugs/show_bug.cgi?id=16400#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WONTFIX - False positive in checker: Function call argument is an uninitialized value"
href="http://llvm.org/bugs/show_bug.cgi?id=16400">bug 16400</a>
from <span class="vcard"><a class="email" href="mailto:jordan_rose@apple.com" title="Jordan Rose <jordan_rose@apple.com>"> <span class="fn">Jordan Rose</span></a>
</span></b>
<pre>The analyzer is conservative about global variables, even static global
variables, and assumes that any function calls it sees could change the
variable. IPA mitigates this a bit, and there are techniques we could add to
figure out that a particular function does /not/ touch a global, but in the
general case it's an unsolvable problem. I don't think we're going to be able
to fix this any time soon.
Workaround: cache the results of the check in a local variable.</pre>
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