<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/56720>56720</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            llvm intrinsic: fp128 not supported well in llvm.trunc and llvm.round on X86_64
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            ABI
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          PeixinQiao
      </td>
    </tr>
</table>

<pre>
    I tested one fortran program using llvm.round for fp128, and it does not work on X86_64.
$ cat test.f90
program main
  real(16) :: x = 1.9D0
  print *, anint(x)
end
$ flang-new -flang-experimental-exec test.f90 && ./a.out

$ flang-new -fc1 -emit-llvm test.f90
$ cat test.ll

</pre>
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