   0  residual_call_r_r $<* fn get_nonmovingbuffer_final_null>, R[$<* struct rpy_string>], <CallDescr(r) EF=5> -> %r0
   7  -live- %i0, %i1, %i2, %i3, %i4, %i5, %r0
   7  getfield_gc_i_pure %r0, FieldDescr<tuple2.item0> -> %i6
  12  getfield_gc_i_pure %r0, FieldDescr<tuple2.item1> -> %i7
  17  residual_call_ir_i $<* fn ccall_deflateInit2___z_streamPtr_Signed_Signed_Signed_Signed_Signed_arrayPtr_Signed>, I[%i0, %i1, %i2, %i3, %i4, %i5, %i6, $56], R[], <CallDescr(iiiiiiii) EF=7> -> %i0
  32  -live- %i0, %i6, %i7
  32  residual_call_ir_v $<* fn free_nonmovingbuffer>, I[%i6, %i7], R[$<* struct rpy_string>], <CallDescr(rii) EF=2>
  41  int_return %i0
