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<body><span class="vcard"><a class="email" href="mailto:vsk@apple.com" title="Vedant Kumar <vsk@apple.com>"> <span class="fn">Vedant Kumar</span></a>
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<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - llvm-cov: Coverage for destructors wrong with optimizations"
href="https://bugs.llvm.org/show_bug.cgi?id=34255">bug 34255</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<tr>
<td style="text-align:right;">Status</td>
<td>RESOLVED
</td>
<td>REOPENED
</td>
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<td style="text-align:right;">Resolution</td>
<td>WORKSFORME
</td>
<td>---
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - llvm-cov: Coverage for destructors wrong with optimizations"
href="https://bugs.llvm.org/show_bug.cgi?id=34255#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - llvm-cov: Coverage for destructors wrong with optimizations"
href="https://bugs.llvm.org/show_bug.cgi?id=34255">bug 34255</a>
from <span class="vcard"><a class="email" href="mailto:vsk@apple.com" title="Vedant Kumar <vsk@apple.com>"> <span class="fn">Vedant Kumar</span></a>
</span></b>
<pre>I can reproduce the issue when I add `-target x86_64-linux-gnu`, but not on
Darwin.
I ran opt-bisect and found that it isn't an optimization issue: the IR clang
generates defines _ZN3BarD2Ev at -O0, but simply doesn't at -O1, with/without
any profiling instrumentation.
Given that the destructor we're talking about isn't called/defined I don't
think this is a bug in the instrumentation. It'd be great to have someone
familiar with the Linux ABI comment on why _ZN3BarD2Ev is never emitted.</pre>
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