http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53137
--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-26 11:34:49 UTC --- Probably wants a new bugreport, but confirmed: (gdb) call debug_gimple_stmt (stmt) __this.0 = __this; and __this is <field_decl 0x7ffff5c0c980 __this type <pointer_type 0x7ffff5c1c888 type <record_type 0x7ffff5c1c2a0 Store type_5 type_6 QI size <integer_cst 0x7ffff5ae0120 constant 8> unit size <integer_cst 0x7ffff5ae0140 constant 1> eh, a bare FIELD_DECL?! Store::updateChild(const T&) [with T = int]::<lambda()> (const struct __lambda0 * const __closure) { struct Store * __this.0; int & D.2050; struct Store * const this [value-expr: ((const struct __lambda0 *) __closure)->__this]; __this.0 = __this; D.2050 = Store::getStore<int> (__this.0); possibly confused from this.