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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang :: Sema/offsetof-64.c FAILs on 64-bit Sparc"
href="https://bugs.llvm.org/show_bug.cgi?id=47710">47710</a>
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<th>Summary</th>
<td>Clang :: Sema/offsetof-64.c FAILs on 64-bit Sparc
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>Sun
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Keywords</th>
<td>miscompilation, regression
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Backend: Sparc
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ro@gcc.gnu.org
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The Clang :: Sema/offsetof-64.c test FAILs on 64-bit Sparc (seen on both
sparcv9-sun-solaris2.11 and sparc64-unknown-linux-gnu):
Assertion failed: (Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) &&
"Overflow in array type bit size evaluation", file
/vol/llvm/src/llvm-project/dist/clang/lib/AST/ASTContext.cpp, line 1914
However, the same problem can be seen in a much reduced testcase (attached).
Compile with
$ clang -m64 -O3 -o o64 o64.c o64d.c && ./o64
Assertion failed: Width <= (uint64_t)(-1) / Size, file o64.c, line 7, function
main
Abort (core dumped)
The test works with gcc and clang-9, while clang-10 and 11 show the same error.</pre>
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