gas/testsuite/gas/arm/req.s

   1         .text
   2         .global test_dot_req_and_unreq
   3 test_dot_req_and_unreq:
   4
   5         # Check that builtin register alias 'r0' works.
   6         add r0, r0, r0
   7
   8         # Create an alias for r0.
   9         foo .req r0
  10
  11         # Check that it works.
  12         add foo, foo, foo
  13
  14         # Now remove the alias.
  15         .unreq foo
  16
  17         # And make sure that it no longer works.
  18         add foo, foo, foo
  19
  20         # Attempt to remove the builtin alias for r0.
  21         .unreq r0
  22
  23         # That is ignored, so this should still work.
  24         add r0, r0, r0
  25