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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Clang didn't emit the right debug information for vla a[3][m]"
href="https://llvm.org/bugs/show_bug.cgi?id=29086">29086</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Clang didn't emit the right debug information for vla a[3][m]
</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>
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<th>OS</th>
<td>Windows NT
</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>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>qshanz@cn.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre><span class="quote">> cat a.C</span >
int m;
int main() {
int a[3][m];
return a[0][0];
}
<span class="quote">> clang++ a.C -g -S -emit-llvm
> cat a.ll</span >
call void @llvm.dbg.declare(metadata i32* %7, metadata !14, metadata !18),
!dbg !19
!14 = !DILocalVariable(name: "a", scope: !9, file: !1, line: 4, type: !15)
!15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !5, align: 32,
elements: !16)
!16 = !{!17, !17}
!17 = !DISubrange(count: -1)
<span class="quote">> clang -v</span >
clang version 4.0.0 (trunk)
Note that, clang emit both two subrange as "-1" which is not right. It should
be "3" and "-1".</pre>
</div>
</p>
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