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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Integrated assembler outputs not-printable characters for private labels"
href="http://llvm.org/bugs/show_bug.cgi?id=18928">18928</a>
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<th>Summary</th>
<td>Integrated assembler outputs not-printable characters for private labels
</td>
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<th>Product</th>
<td>tools
</td>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>llc
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>dpeixott@codeaurora.org
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>When printing an assembly file with private labels the integrated assembler
will output non-printable characters for the generated private label names.
$ cat tt.s
.syntax unified
foo:
b 1f
1:
add r0, r0, r0
$ llvm-mc -triple arm-none-linux < tt.s
.text
foo:
b ".L11"
".L11":
add r0, r0, r0
$ llvm-mc -triple arm-none-linux < tt.s | hexdump -C
00000000 09 2e 74 65 78 74 0a 66 6f 6f 3a 0a 09 62 09 22 |..text.foo:..b."|
00000010 2e 4c 31 02 31 22 0a 22 2e 4c 31 02 31 22 3a 0a |.L1.1".".L1.1":.|
00000020 09 61 64 64 09 72 30 2c 20 72 30 2c 20 72 30 0a |.add.r0, r0, r0.|
00000030 0a |.|
00000031
The hexdump output shows that the generated label name "L11" contains the
non-printable character 0x02 between the two 1's in the label name.
We should not output non-printable characters when outputting to an assembly
text file.</pre>
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</p>
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