message: Avoid a temporary stackslot in codegen_checked_int_binop
diff: @@ -328,18 +328,11 @@ pub(crate) fn codegen_checked_int_binop<'tcx>(
  let has_overflow = fx.bcx.ins().bint(types::I8, has_overflow);
  - // FIXME directly write to result place instead
  - let out_place = CPlace::new_stack_slot(
  - fx,
  - fx.layout_of(
  + let out_layout = fx.layout_of(
  fx.tcx
  .mk_tup([in_lhs.layout().ty, fx.tcx.types.bool].iter()),
  - ),
  );
  - let out_layout = out_place.layout();
  - out_place.write_cvalue(fx, CValue::by_val_pair(res, has_overflow, out_layout));
  -
  - out_place.to_cvalue(fx)
  + CValue::by_val_pair(res, has_overflow, out_layout)
  }
  pub(crate) fn codegen_float_binop<'tcx>(
  