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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - We should probably support threadLocalMode in aliases"
href="http://llvm.org/bugs/show_bug.cgi?id=19844">19844</a>
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<th>Summary</th>
<td>We should probably support threadLocalMode in aliases
</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>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Core LLVM classes
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>rafael.espindola@gmail.com
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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>
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<pre>given
------------------------------------
__thread int a = 42;
extern __thread int b __attribute__((tls_model("local-dynamic"), alias("a")));
int *f(void) {
return &a;
}
int *g(void) {
return &b;
}
-----------------------------------
gcc will produce
leaq a@tlsgd(%rip), %rdi
leaq b@tlsld(%rip), %rdi
Given the current class layout this will probably mean moving threadLocalMode
to GlobalValue and asserting it is NotThreadLocal for functions.</pre>
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