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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Bad alignment in convertUTF16ToUTF8String"
href="http://llvm.org/bugs/show_bug.cgi?id=18482">18482</a>
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<th>Summary</th>
<td>Bad alignment in convertUTF16ToUTF8String
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>Sun
</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>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Support Libraries
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>stoklund@2pi.dk
</td>
</tr>
<tr>
<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>lib/Support/ConvertUTFWrapper.cpp contains this code:
bool convertUTF16ToUTF8String(ArrayRef<char> SrcBytes, std::string &Out) {
...
const UTF16 *Src = reinterpret_cast<const UTF16 *>(SrcBytes.begin());
const UTF16 *SrcEnd = reinterpret_cast<const UTF16 *>(SrcBytes.end());
...
if (Src[0] == UNI_UTF16_BYTE_ORDER_MARK_SWAPPED) {
The UTF16 type is normally 2-byte aligned, and there is no guarantee that the
ArrayRef points to aligned bytes.
This crashes the unit test ConvertUTFTest.ConvertUTF16LittleEndianToUTF8String
on SPARC.</pre>
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