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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Invalid diag "error: invalid argument type 'struct foo *' to unary expression""
href="https://llvm.org/bugs/show_bug.cgi?id=30217">30217</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Invalid diag "error: invalid argument type 'struct foo *' to unary expression"
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.9
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>funfunctor@folklore1984.net
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17192" name="attach_17192" title="Reduced test case.">attachment 17192</a> <a href="attachment.cgi?id=17192&action=edit" title="Reduced test case.">[details]</a></span>
Reduced test case.
Hi,
While building the attached test case using the OpenCL frontend the canonical
form of checking pointer nullity is treated in a way that results in an invalid
diagnostic error raised.
FAILS:
```
if (!ptr)
...
```
PASSES:
```
if (ptr == NULL)
...
```
Compile with: $ clang -S -emit-llvm -o test.ll -x cl test.cl
Kind Regards,
Edward.</pre>
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