<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - gnu address-of-label extension parsing has too-high precedence"
href="https://bugs.llvm.org/show_bug.cgi?id=39365">39365</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>gnu address-of-label extension parsing has too-high precedence
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>zturner@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
</tr></table>
<p>
<div>
<pre>5 - <a href="https://godbolt.org/z/_XH9G1">https://godbolt.org/z/_XH9G1</a>
struct foo
{
unsigned short operator!=(const foo &)
{
return 1;
}
};
extern void* p1;
extern void* p2;
extern foo f;
void bar()
{
if (f != (foo()) && p1 == p2)
{
}
}
Removing the parentheses or removing the second conditional makes this work.
Since this doesn't make sense as an address-of-label, we should prioritize
parsing this as what it actually is, which is ((f != foo()) && (p1 == p2))</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>