[Bug c/56980] Misleading note

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56980

--- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2013-04-16 15:24:46 UTC ---
Confirmed, but I seriously doubt it has anything to do with my patch. At the
moment of warning we get:

(gdb) p debug_tree(type)
 <pointer_type 0x7ffff7511540
    type <record_type 0x7ffff7511498 B type_0 SI
        size <integer_cst 0x7ffff740f0c0 constant 32>
        unit size <integer_cst 0x7ffff740f0e0 constant 4>
        align 32 symtab 0 alias set -1 canonical type 0x7ffff75113f0
        fields <field_decl 0x7ffff74195f0 i type <integer_type 0x7ffff740c5e8
int>
            SI file /home/manuel/pr56980.c line 1 col 24 size <integer_cst
0x7ffff740f0c0 32> unit size <integer_cst 0x7ffff740f0e0 4>
            align 32 offset_align 128
            offset <integer_cst 0x7ffff73f7d80 constant 0>
            bit offset <integer_cst 0x7ffff73f7e00 constant 0> context
<record_type 0x7ffff75113f0 A>>
        pointer_to_this <pointer_type 0x7ffff7511540> chain <type_decl
0x7ffff752a000 D.1714>>
    unsigned DI
    size <integer_cst 0x7ffff73f7d40 type <integer_type 0x7ffff740c0a8
bitsizetype> constant 64>
    unit size <integer_cst 0x7ffff73f7d60 type <integer_type 0x7ffff740c000
sizetype> constant 8>
    align 64 symtab 0 alias set -1 canonical type 0x7ffff75115e8>
$9 = void
(gdb) p debug_tree(rhstype)
 <pointer_type 0x7ffff75119d8
    type <record_type 0x7ffff7511930 B VOID
        align 8 symtab 0 alias set -1 canonical type 0x7ffff7511930 context
<function_decl 0x7ffff7510a00 bar>
        pointer_to_this <pointer_type 0x7ffff75119d8> chain <type_decl
0x7ffff752a170 D.1722>>
    unsigned DI
    size <integer_cst 0x7ffff73f7d40 type <integer_type 0x7ffff740c0a8
bitsizetype> constant 64>
    unit size <integer_cst 0x7ffff73f7d60 type <integer_type 0x7ffff740c000
sizetype> constant 8>
    align 64 symtab 0 alias set -1 canonical type 0x7ffff75119d8>

which seem correct to me, so the pretty-printer is printing the wrong thing and
not unwrapping the typedef as it should.