   0  inline_call_ir_i <JitCode 'deflateInit'>, I[$-1, $8, $15, $8, $0], R[] -> %i1
  11  -live- %i0, %i1
  14  residual_call_ir_i $<* fn ccall_deflateCopy__z_streamPtr_z_streamPtr>, I[%i1, %i0], R[], <CallDescr(ii) EF=7> -> %i2
  23  -live- %i0, %i1, %i2
  26  goto_if_not_int_is_true %i2, L1
  30  inline_call_ir_v <JitCode 'deflateEnd'>, I[%i1], R[]
  36  -live- %i0, %i2
  39  inline_call_ir_r <JitCode 'fromstream'>, I[%i0, %i2], R[$<* struct rpy_string>] -> %r0
  48  -live- %r0
  51  assert_not_none %r0
  53  -live- %r0
  56  guard_class %r0 -> %i0
  59  -live- %r0
  62  raise %r0
  64  ---
  64  L1:
  64  int_return %i1
