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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - -Wno-unused has no effect after -W"
href="https://bugs.llvm.org/show_bug.cgi?id=52244">52244</a>
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<th>Summary</th>
<td>-Wno-unused has no effect after -W
</td>
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<th>Product</th>
<td>clang
</td>
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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>All
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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>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>hui.xie0621@gmail.com
</td>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
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<pre>Compile the following code
```
void foo(int a){
}
```
with -Wextra -Wno-unused
It still gives unused warning
unused parameter 'a' [-Werror,-Wunused-parameter]
<a href="https://godbolt.org/z/bYhcdY7Y1">https://godbolt.org/z/bYhcdY7Y1</a></pre>
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