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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - -Wreturn-stack-address false negative when address is stored in a local variable"
href="https://bugs.llvm.org/show_bug.cgi?id=39017">39017</a>
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<th>Summary</th>
<td>-Wreturn-stack-address false negative when address is stored in a local variable
</td>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>new bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>skvadrik@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>On the following code, I get -Wreturn-stack-address warning only on 'bar', but
not on 'foo' (even with optimization level -O3):
// 1.c
int *foo(void)
{
int n = 123;
int *p;
p = &n;
return p;
}
int *bar(void)
{
int n = 123;
return &n;
}
$ clang -Wreturn-stack-address -c 1.c -O3
1.c:12:11: warning: address of stack memory associated with local variable 'n'
returned [-Wreturn-stack-address]
return &n;
^
1 warning generated.</pre>
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