[Bug target/108640] ICE compiling busybox for m68k in change_address_1, at emit-rtl.cc:2283

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108640

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
                 CC|                            |marxin at gcc dot gnu.org
           Keywords|needs-reduction             |
   Last reconfirmed|                            |2023-03-30

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:

$ cat pr108640.i
int option_mask32;

enum {
  OPTBIT_F = 12,
  OPTBIT_R,
  OPTBIT_Z,
  OPTBIT_c,
  OPTBIT_t,
  OPT_t = 1 << OPTBIT_t
} ls_main() {
  option_mask32 |= OPT_t;
}

$ ./xgcc -B. ~/Programming/testcases/pr108640.i -c -Os
during RTL pass: final
/home/marxin/Programming/testcases/pr108640.i: In function ‘ls_main’:
/home/marxin/Programming/testcases/pr108640.i:12:1: internal compiler error: in
change_address_1, at emit-rtl.cc:2287
   12 | }
      | ^
0xee4b72 change_address_1
        /home/marxin/Programming/gcc/gcc/emit-rtl.cc:2287
0xee5684 adjust_address_1(rtx_def*, machine_mode, poly_int<1u, long>, int, int,
int, poly_int<1u, long>)
        /home/marxin/Programming/gcc/gcc/emit-rtl.cc:2421
0x190e4e3 output_iorsi3(rtx_def**)
        /home/marxin/Programming/gcc/gcc/config/m68k/m68k.cc:5513
0x1fd17bd output_255
        /home/marxin/Programming/gcc/gcc/config/m68k/m68k.md:3779
0xf64f4f get_insn_template(int, rtx_insn*)
        /home/marxin/Programming/gcc/gcc/final.cc:2029
0xf66b5e final_scan_insn_1
        /home/marxin/Programming/gcc/gcc/final.cc:2774
0xf66fd2 final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
        /home/marxin/Programming/gcc/gcc/final.cc:2887
0xf64d79 final_1
        /home/marxin/Programming/gcc/gcc/final.cc:1979
0xf69bbc rest_of_handle_final
        /home/marxin/Programming/gcc/gcc/final.cc:4240
0xf69f1a execute
        /home/marxin/Programming/gcc/gcc/final.cc:4318
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