============ after processor `livevar_analysis` ================

[variant baseline]
pub fun Trafo::incr_ref($t0|r: &mut u64) {
     var $t1: u64
     var $t2: u64
     var $t3: u64
     # live vars: r
  0: trace_local[r]($t0)
     # live vars: r
  1: $t1 := read_ref($t0)
     # live vars: r, $t1
  2: $t2 := 1
     # live vars: r, $t1, $t2
  3: $t3 := +($t1, $t2)
     # live vars: r, $t3
  4: write_ref($t0, $t3)
     # live vars: r
  5: trace_local[r]($t0)
     # live vars:
  6: return ()
}


[variant baseline]
pub fun Trafo::use_incr_ref($t0|b: bool): Trafo::R {
     var $t1|r1: Trafo::R
     var $t2|r2: Trafo::R
     var $t3|r_ref: &mut Trafo::R
     var $t4|tmp#$4: &mut Trafo::R
     var $t5: u64
     var $t6: u64
     var $t7: &mut Trafo::R
     var $t8: &mut Trafo::R
     var $t9: &mut u64
     var $t10: Trafo::R
     # live vars: b
  0: trace_local[b]($t0)
     # live vars: b
  1: $t5 := 1
     # live vars: b, $t5
  2: $t1 := pack Trafo::R($t5)
     # live vars: b, r1
  3: trace_local[r1]($t1)
     # live vars: b, r1
  4: $t6 := 2
     # live vars: b, r1, $t6
  5: $t2 := pack Trafo::R($t6)
     # live vars: b, r1, r2
  6: trace_local[r2]($t2)
     # live vars: b, r1, r2
  7: if ($t0) goto 10 else goto 8
     # live vars: r2
  8: label L1
     # live vars: r2
  9: goto 15
     # live vars: r1, r2
 10: label L0
     # live vars: r1, r2
 11: $t7 := borrow_local($t1)
     # live vars: r2, $t7
 12: $t4 := $t7
     # live vars: r2, tmp#$4, $t7
 13: trace_local[tmp#$4]($t7)
     # live vars: r2, tmp#$4
 14: goto 19
     # live vars: r2
 15: label L2
     # live vars: r2
 16: $t8 := borrow_local($t2)
     # live vars: r2, $t8
 17: $t4 := $t8
     # live vars: r2, tmp#$4, $t8
 18: trace_local[tmp#$4]($t8)
     # live vars: r2, tmp#$4
 19: label L3
     # live vars: r2, tmp#$4
 20: trace_local[r_ref]($t4)
     # live vars: r2, tmp#$4
 21: $t9 := borrow_field<Trafo::R>.x($t4)
     # live vars: r2, $t9
 22: Trafo::incr_ref($t9)
     # live vars: r2
 23: $t10 := move($t2)
     # live vars: $t10
 24: trace_return[0]($t10)
     # live vars: $t10
 25: return $t10
}