[Bug target/116236] [LRA] [M68K] ICE insn does not satisfy its constraints

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116236

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
We end up in process_address_1 doing

  /* Target hooks sometimes don't treat extra-constraint addresses as
     legitimate address_operands, so handle them specially.  */
  if (insn_extra_address_constraint (cn)
      && satisfies_address_constraint_p (&ad, cn))
    return change_p;

and that calls legitimate_address_p with strict_p == false and

(plus:SI (sign_extend:SI (reg:HI 36 [ __y1$_M_y ]))
    (reg:SI 41))

returning true and thus we finish process_address_1.