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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - We should add hidden visibility to linkonce_odr + unnamed_addr"
href="https://bugs.llvm.org/show_bug.cgi?id=36325">36325</a>
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<th>Summary</th>
<td>We should add hidden visibility to linkonce_odr + unnamed_addr
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<th>Product</th>
<td>libraries
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>Interprocedural Optimizations
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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>llvm-bugs@lists.llvm.org, peter@pcc.me.uk, stevenwu@apple.com, tejohnson@google.com
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<p>
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<pre>This optimization is normally done during linking (always on MachO, if using
LTO in other formats).
If the GV has the *global* unnamed_addr, we could give it hidden visibility
earlier on. For example,
class foo {
virtual void bar() {}
virtual void zed();
};
void foo::zed() {}
Produces
define linkonce_odr void @_ZN3foo3barEv(%class.foo*) unnamed_addr
We could add hidden to it in GlobalOpt.</pre>
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