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Fix passing self by value for types passed by value #6903

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11 changes: 9 additions & 2 deletions src/librustc/middle/trans/base.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1730,8 +1730,15 @@ pub fn copy_args_to_allocas(fcx: fn_ctxt,
// We really should do this regardless of whether self is owned, but
// it doesn't work right with default method impls yet. (FIXME: #2794)
if slf.is_owned {
let self_val = PointerCast(bcx, slf.v,
T_ptr(type_of(bcx.ccx(), slf.t)));
let self_val = if datum::appropriate_mode(slf.t).is_by_value() {
let tmp = BitCast(bcx, slf.v, type_of(bcx.ccx(), slf.t));
let alloc = alloc_ty(bcx, slf.t);
Store(bcx, tmp, alloc);
alloc
} else {
PointerCast(bcx, slf.v, T_ptr(type_of(bcx.ccx(), slf.t)))
};

fcx.llself = Some(ValSelfData {v: self_val, ..slf});
add_clean(bcx, self_val, slf.t);
}
Expand Down