struct L { void *a; };
struct S {
static S *foo (L *x)
{
return (S *) ((char *) x - (unsigned long) &(((S *) 0)->*&S::a));
}
L a;
};
causes ICE in fold_convert (abort at the very end of the function).
Works fine with G++ 3.2.3-RH and HEAD.
Breakpoint 2, fold_convert (type=0x2a97b66d00, arg=0x2a97d65c60) at
../../gcc/fold-const.c:1917
1917 abort ();
(gdb) p debug_tree(type)
<integer_type 0x2a97b66d00 long int DI
size <integer_cst 0x2a97b64930 type <integer_type 0x2a97b78410
bit_size_type>
constant 64>
unit size <integer_cst 0x2a97b64a80 type <integer_type 0x2a97b78340 long
unsigned int> constant 8>
align 64 symtab 0 alias set -1 precision 64 min <integer_cst 0x2a97b64a20
-9223372036854775808> max <integer_cst 0x2a97b64a50 9223372036854775807>>
$1 = void
(gdb) p debug_tree(arg)
<negate_expr 0x2a97d65c60
type <offset_type 0x2a97d63820
type <record_type 0x2a97d58680 L type_1 type_5 DI
size <integer_cst 0x2a97b749c0 constant 64>
unit size <integer_cst 0x2a97b74a80 constant 8>
align 64 symtab 0 alias set -1 fields <field_decl 0x2a97d589c0 a>
X() X(constX&) this=(X&) n_parents 0 use_template=0
interface-unknown
member-functions <tree_vec 0x2a97d5d980
elt 0 <overload 0x2a97d50fc0>
elt 2 <function_decl 0x2a97d5fa90 operator=>
elt 3 <overload 0x2a97d61040>
elt 4 <overload 0x2a97d61000>>
pointer_to_this <pointer_type 0x2a97d58750> reference_to_this
<reference_type 0x2a97d5f680> chain <type_decl 0x2a97d58820 L>>
DI size <integer_cst 0x2a97b749c0 64> unit size <integer_cst
0x2a97b74a80
8>
align 64 symtab 0 alias set -1 basetype <record_type 0x2a97d604e0 S>>
constant
arg 0 <ptrmem_cst 0x2a97d658a0 type <offset_type 0x2a97d63820>
constant>>
$2 = void
--
Summary: ICE in fold_convert
Product: gcc
Version: 3.4.4
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19666
