message: Fix checked binops when overflow checks are disabled
diff: @@ -831,6 +831,11 @@ pub fn trans_int_binop<'a, 'tcx: 'a>(
  );
  }
  + match out_ty.sty {
  + ty::Bool | ty::Uint(_) | ty::Int(_) => {}
  + _ => unreachable!("Out ty {:?} is not an integer or bool", out_ty),
  + }
  +
  if let Some(res) = crate::codegen_i128::maybe_codegen(fx, bin_op, false, signed, lhs, rhs, out_ty) {
  return res;
  }
  @@ -875,7 +880,9 @@ pub fn trans_checked_int_binop<'a, 'tcx: 'a>(
  signed: bool,
  ) -> CValue<'tcx> {
  if !fx.tcx.sess.overflow_checks() {
  - return trans_int_binop(fx, bin_op, in_lhs, in_rhs, out_ty, signed);
  + let val = trans_int_binop(fx, bin_op, in_lhs, in_rhs, in_lhs.layout().ty, signed).load_scalar(fx);
  + let is_overflow = fx.bcx.ins().iconst(types::I8, 0);
  + return CValue::by_val_pair(val, is_overflow, fx.layout_of(out_ty));
  }
  if bin_op != BinOp::Shl && bin_op != BinOp::Shr {
  