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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Clang crash compiling offsetof member of virtual base"
href="http://llvm.org/bugs/show_bug.cgi?id=17578">17578</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Clang crash compiling offsetof member of virtual base
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>LLVM Codegen
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>Yunzhong_Gao@playstation.sony.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Compiling the following test case caused clang front end to crash.
/* clang -S -o - test.cpp */
#include <cstddef>
struct Base {
int a;
};
struct Derived : virtual Base
{};
void foo()
{
int xx = offsetof(Derived, a);
}
/* end test.cpp */
clang: llvm/tools/clang/lib/CodeGen/CGExprScalar.cpp:1849: llvm::Value*
{anonymous}::ScalarExprEmitter::VisitOffsetOfExpr(clang::OffsetOfExpr*):
Assertion `i < RL.getFieldCount() && "offsetof field in wrong type"' failed.
clang version 3.4 (trunk 191913)
Target: x86_64-unknown-linux-gnu
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
clang: note: diagnostic msg:
********************</pre>
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</p>
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