[Bug rtl-optimization/85302] [8 Regression] ICE in size_of_loc_descr, at dwarf2out.c:1771 on i686-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85302

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2018-04-10
            Version|7.3.1                       |8.0.1
   Target Milestone|---                         |8.0
     Ever confirmed|0                           |1

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed on x86_64-linux with

> ./cc1plus  -quiet t.ii -std=c++11 -gsplit-dwarf -O1  -m32 -fPIE
t.ii:11:27: internal compiler error: in size_of_loc_descr, at dwarf2out.c:1771
       void f() { e.d(""); }
                           ^
0xd68549 size_of_loc_descr
        ../../src/trunk/gcc/dwarf2out.c:1771
0xd689b5 size_of_locs(dw_loc_descr_node*)
        ../../src/trunk/gcc/dwarf2out.c:1967
0xd75a7d skip_loc_list_entry
        ../../src/trunk/gcc/dwarf2out.c:10047
0xdaf70d index_location_lists

as Jakub said -gsplit-dwarf is unmaintained (and I hope it gets purged at some
point).

#1  0x0000000000d6854a in size_of_loc_descr (loc=0x7ffff6c66e10)
    at ../../src/trunk/gcc/dwarf2out.c:1771
1771          gcc_assert (loc->dw_loc_oprnd1.val_entry->index !=
NO_INDEX_ASSIGNED);
(gdb) l
1766        case DW_OP_addr:
1767          size += DWARF2_ADDR_SIZE;
1768          break;
1769        case DW_OP_GNU_addr_index:
1770        case DW_OP_GNU_const_index:
1771          gcc_assert (loc->dw_loc_oprnd1.val_entry->index !=
NO_INDEX_ASSIGNED);