<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - typeinfo for __int128_t and __uint128_t not emitted"
   href="https://llvm.org/bugs/show_bug.cgi?id=26156">26156</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>typeinfo for __int128_t and __uint128_t not emitted
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>3.7
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>FreeBSD
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>C++
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>hartmut.brandt@dlr.de
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The following program fails to link:

#include <typeinfo>
const auto &ti = typeid(__int128_t);
const auto &tu = typeid(__uint128_t);
int main() {}

The linker output is:

/tmp/x-49a846.o:(.rodata+0x0): undefined reference to `typeinfo for __int128'
/tmp/x-49a846.o:(.rodata+0x8): undefined reference to `typeinfo for unsigned
__int128'
clang++: error: linker command failed with exit code 1 (use -v to see
invocation)

Looks like the compiler is not emitting the typeinfo for those types. Gcc seems
to have fixed this last year (did not check, just looked at a bug report there
(<a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43622">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43622</a>)).</pre>
        </div>
      </p>
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