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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Debug info for non-type template parameters lacks DW_AT_location depending on layout"
href="http://llvm.org/bugs/show_bug.cgi?id=16967">16967</a>
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<th>Summary</th>
<td>Debug info for non-type template parameters lacks DW_AT_location depending on layout
</td>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>LLVM Codegen
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>david.majnemer@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>consider:
struct Type {
unsigned int Data1;
unsigned short Data2, Data3;
unsigned char Data4;
};
template<const Type *G>
const Type *func() {
return G;
}
extern const Type Y;
const Type Y = {};
int main() {
func<&Y>();
}
compile with:
~/llvm/build/bin/clang /var/tmp/dlb.cpp -o /var/tmp/dlb -g
dwarfdump shows:
0x000000df: DW_TAG_template_value_parameter [9]
DW_AT_type [DW_FORM_ref4] (cu + 0x00e9 => {0x000000e9})
DW_AT_name [DW_FORM_strp] ( .debug_str[0x000000a7] = "G")
We are missing DW_AT_location
in the following gdb session:
Temporary breakpoint 1, main () at /var/tmp/dlb.cpp:15
15 func<&Y>();
(gdb) step
func<&Y> () at /var/tmp/dlb.cpp:9
9 return G;
(gdb) p G
$1 = <optimized out></pre>
</div>
</p>
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