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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [fuzz] Assertion `!isNull() && "Cannot retrieve a NULL type pointer"' failed."
href="http://llvm.org/bugs/show_bug.cgi?id=21821">21821</a>
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<tr>
<th>Summary</th>
<td>[fuzz] Assertion `!isNull() && "Cannot retrieve a NULL type pointer"' failed.
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>sami.liedes@iki.fi
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=13463" name="attach_13463" title="test case">attachment 13463</a> <a href="attachment.cgi?id=13463&action=edit" title="test case">[details]</a></span>
test case
Fuzzing discovered that the attached test case, when given as input to
clang -fno-crash-diagnostics -std=c++11 -xc++ -c -emit-llvm
causes this assertion failure:
retrieve-null-type-ptr.cpp:1:1: error: unknown type name 'typede'; did you mean
'typedef'?
typede^ _Atomic(i
^~~~~~
typedef
retrieve-null-type-ptr.cpp:1:18: error: expected ')'
typede^ _Atomic(i
^
retrieve-null-type-ptr.cpp:1:16: note: to match this '('
typede^ _Atomic(i
^
retrieve-null-type-ptr.cpp:1:17: error: C++ requires a type specifier for all
declarations
typede^ _Atomic(i
~~~~~~ ^
retrieve-null-type-ptr.cpp:1:7: error: blocks support disabled - compile with
-fblocks or pick a deployment target that supports them
typede^ _Atomic(i
^
retrieve-null-type-ptr.cpp:1:17: error: block pointer to non-function type is
invalid
typede^ _Atomic(i
^
clang-3.6: tools/clang/include/clang/AST/Type.h:562: const
clang::ExtQualsTypeCommonBase *clang::QualType::getCommonPtr() const: Assertion
`!isNull() && "Cannot retrieve a NULL type pointer"' failed.</pre>
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