<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/64315>64315</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [flang][hlfir] fir.char_convert verification failure
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            flang:ir,
            crash
      </td>
    </tr>

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

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

<pre>
    Reproducer:
```
subroutine test(c,n)
  character(*,4),intent(in) :: c(:)
  integer,intent(in) :: n
  interface
     subroutine callee(c)
 character(*),intent(in) :: c(:)
     end subroutine callee
  end interface
  call show([character(n)::c])
end subroutine test

subroutine test2(x)
  integer,intent(in) :: x
 character(kind=4) :: cx
  cx = achar(x)
end subroutine test2
```

flang-new -flang-experimental-hlfir repro.f90:
```
error: loc("repro.f90":9:3): 'fir.char_convert' op operand #0 must be any reference, but got '!fir.boxchar<4>'
error: loc("repro.f90":15:3): 'fir.char_convert' op operand #0 must be any reference, but got '!hlfir.expr<!fir.char<1>>'
```
</pre>
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