gas/testsuite/gas/i386/x86-64-segment.l

   1    1                    .psize 0
   2    2                    .text
   3    3                    # test segment reg insns with memory operand
   4    4 0000 8C18                  movw    %ds,\(%rax\)
   5    5 0002 8C18                  mov     %ds,\(%rax\)
   6    6 0004 8E18                  movw    \(%rax\),%ds
   7    7 0006 8E18                  mov     \(%rax\),%ds
   8    8                    # test segment reg insns with REX
   9    9 0008 488CD8                movq    %ds,%rax
  10   10 000b 488ED8                movq    %rax,%ds
  11   11                            # Force a good alignment.
  12   12 000e 0000                  .p2align        4,0