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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Declaring an alias to a thread variable turns it into a regular variable"
href="http://llvm.org/bugs/show_bug.cgi?id=19843">19843</a>
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<th>Summary</th>
<td>Declaring an alias to a thread variable turns it into a regular variable
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</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>rafael.espindola@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
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<p>
<div>
<pre>clang will compile
static __thread int a = 42;
extern __thread int b __attribute__((alias("a")));
int *f(void) {
return &a;
}
to
@a = internal global i32 42, align 4
...
commenting 'b' causes it to produce
@a = internal thread_local global i32 42, align 4</pre>
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