https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85437
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
Target Milestone|--- |8.0
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(gdb) p debug_tree (type)
<offset_type 0x7fffefd9d150
type <integer_type 0x7fffefc625e8 int public type_6 SI
size <integer_cst 0x7fffefc650c0 constant 32>
unit-size <integer_cst 0x7fffefc650d8 constant 4>
align:32 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefc625e8 precision:32 min <integer_cst 0x7fffefc65078 -2147483648> max
<integer_cst 0x7fffefc65090 2147483647>
pointer_to_this <pointer_type 0x7fffefc6aa80>>
DI
size <integer_cst 0x7fffefc45e70 type <integer_type 0x7fffefc620a8
bitsizetype> constant 64>
unit-size <integer_cst 0x7fffefc45e88 type <integer_type 0x7fffefc62000
sizetype> constant 8>
align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefd9d150 basetype <record_type 0x7fffefd88150 A>>
$4 = void
(gdb) p debug_tree (op->typed.type)
<offset_type 0x7fffefd9d3f0
type <integer_type 0x7fffefc625e8 int public type_6 SI
size <integer_cst 0x7fffefc650c0 constant 32>
unit-size <integer_cst 0x7fffefc650d8 constant 4>
align:32 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefc625e8 precision:32 min <integer_cst 0x7fffefc65078 -2147483648> max
<integer_cst 0x7fffefc65090 2147483647>
pointer_to_this <pointer_type 0x7fffefc6aa80>>
DI
size <integer_cst 0x7fffefc45e70 type <integer_type 0x7fffefc620a8
bitsizetype> constant 64>
unit-size <integer_cst 0x7fffefc45e88 type <integer_type 0x7fffefc62000
sizetype> constant 8>
align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffefd9d3f0 basetype <record_type 0x7fffefd889d8 B>>
Ah, one has basetype A, the other B, and both:
4600 if (same_type_ignoring_top_level_qualifiers_p (type,
4601 TREE_TYPE
(op))
4602 || can_convert_qual (type, op))
tests fail in this case.
