[Bug debug/69518] [6 Regression] Flag -g causes "error: type variant has different TYPE_VFIELD"

["trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69518

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-01-27
                 CC|                            |trippels at gcc dot gnu.org
          Component|c                           |debug
            Summary|Flag -g causes "error: type |[6 Regression] Flag -g
                   |variant has different       |causes "error: type variant
                   |TYPE_VFIELD"                |has different TYPE_VFIELD"
     Ever confirmed|0                           |1

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
markus@x4 tmp % cat bug269.c
struct s_stats a;
typedef struct s_stats cstats;
struct s_stats {
} fn1(cstats p1) {
}

markus@x4 tmp % gcc -c -g bug269.c
bug269.c: In function âfn1â:
bug269.c:5:1: error: type variant has different TYPE_VFIELD
 }
 ^
 <record_type 0x7fc47749a348 s_stats asm_written type_0 BLK
    size <integer_cst 0x7fc477396d20 type <integer_type 0x7fc47739a2a0
bitsizetype> constant 0>
    unit size <integer_cst 0x7fc477396cd8 type <integer_type 0x7fc47739a1f8
sizetype> constant 0>
    align 8 symtab 2001394976 alias set -1 canonical type 0x7fc47749a348
context <translation_unit_decl 0x7fc4773a21e0 D.1761>
    chain <type_decl 0x7fc4773bad10 D.1755>>
 <record_type 0x7fc47749a540 cstats BLK
    size <integer_cst 0x7fc477396d20 type <integer_type 0x7fc47739a2a0
bitsizetype> constant 0>
    unit size <integer_cst 0x7fc477396cd8 type <integer_type 0x7fc47739a1f8
sizetype> constant 0>
    align 8 symtab 2001395216 alias set -1 canonical type 0x7fc47749a348
context <translation_unit_decl 0x7fc4773a21e0 D.1761>
    chain <type_decl 0x7fc4773bad10 D.1755>>
bug269.c:5:1: internal compiler error: verify_type failed
0xdc44ad verify_type(tree_node const*)
        ../../gcc/gcc/tree.c:13888
0x7c522c gen_type_die_with_usage
        ../../gcc/gcc/dwarf2out.c:22701
0x7c65f6 gen_type_die
        ../../gcc/gcc/dwarf2out.c:22899
0x7be320 gen_decl_die
        ../../gcc/gcc/dwarf2out.c:23555
0x7bb364 gen_subprogram_die
        ../../gcc/gcc/dwarf2out.c:20704
0x7bde6c gen_decl_die
        ../../gcc/gcc/dwarf2out.c:23468
0x7bedae dwarf2out_decl
        ../../gcc/gcc/dwarf2out.c:23951
0x7d6538 dwarf2out_early_global_decl
        ../../gcc/gcc/dwarf2out.c:23624
0x74efeb symbol_table::finalize_compilation_unit()
        ../../gcc/gcc/cgraphunit.c:2549