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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Verifier accepts broken DIGlobalVariable"
href="https://bugs.llvm.org/show_bug.cgi?id=34672">34672</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Verifier accepts broken DIGlobalVariable
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>DebugInfo
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>aprantl@apple.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The Verifier accepts the following IR because we only visit DIGlobalVariables
when they are listed in the DICompileUnit, and never from a
DIGlobalVariableExpression.
@global = common global i32 0, align 4, !dbg !2
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!5, !6}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer:
"adrian", emissionKind: FullDebug)
!1 = !DIFile(filename: "broken.c", directory: "/")
!2 = !DIGlobalVariableExpression(var: !3, expr: !DIExpression())
!3 = !DIGlobalVariable(name: "g", scope: !0, file: !1, line: 1, type: !1,
isLocal: false, isDefinition: true)
; ^^^^^^^^ ERROR
!5 = !{i32 2, !"Dwarf Version", i32 4}
!6 = !{i32 1, !"Debug Info Version", i32 3}</pre>
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