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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - some vtable symbol refs use GOT despite hidden visibility"
href="https://bugs.llvm.org/show_bug.cgi?id=35022">35022</a>
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<th>Summary</th>
<td>some vtable symbol refs use GOT despite hidden visibility
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>other
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>LLVM Codegen
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>roland@hack.frob.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, phosek@chromium.org
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<pre>The attached input file starts with:
#pragma GCC visibility push(hidden)
so all definitions and all external references should be treated as if they had
individual __attribute__((visibility("hidden"))). Hence there should be no GOT
references.
However, it generates a GOT reference for _ZTV21BlockingPortAllocator, a C++
vtable symbol.
In the attached .ll file, the symbol is declared:
@_ZTV21BlockingPortAllocator = external unnamed_addr constant { [6 x i8*] }
I think this is where "hidden" is missing, so it appears to be a Clang issue
rather than a backend issue.
The test case is for x86-64 but I'm having the same issue on aarch64 too.</pre>
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