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<body><span class="vcard"><a class="email" href="mailto:rtrieu@google.com" title="rtrieu@google.com">rtrieu@google.com</a>
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<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Incorrect result at self-comparison of uninitialized value"
href="https://bugs.llvm.org/show_bug.cgi?id=37774">bug 37774</a>
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<table border="1" cellspacing="0" cellpadding="8">
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
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<td style="text-align:right;">CC</td>
<td>
</td>
<td>rtrieu@google.com
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Incorrect result at self-comparison of uninitialized value"
href="https://bugs.llvm.org/show_bug.cgi?id=37774#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Incorrect result at self-comparison of uninitialized value"
href="https://bugs.llvm.org/show_bug.cgi?id=37774">bug 37774</a>
from <span class="vcard"><a class="email" href="mailto:rtrieu@google.com" title="rtrieu@google.com">rtrieu@google.com</a>
</span></b>
<pre>This is working as intended. A read from uninitialized memory has undefined
behavior. When a program runs into undefined behavior, anything can happen.
The optimizer detects that the condition is only evaluated after undefined
behavior has happened. Because of that, it removes the if-branch and executes
the else-branch unconditionally.</pre>
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