   0  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x42c7c7b0> -> %r1
   4  setfield_gc_i %r1, $0, FieldDescr<rpython.rlib.buffer.Buffer.inst_readonly>
   9  setfield_gc_i %r1, $8, FieldDescr<rpython.rlib.mutbuffer.MutableStringBuffer.inst_size>
  14  newstr $8 -> %r0
  17  setfield_gc_r %r1, %r0, FieldDescr<rpython.rlib.mutbuffer.MutableStringBuffer.inst_ll_val>
  22  inline_call_irf_f <JitCode 'float_pack'>, I[$8], R[], F[%f0] -> %f0
  31  -live- %f0, %r1
  31  inline_call_irf_v <JitCode 'pack_float_to_buffer'>, I[$0, $8, $False], R[%r1], F[%f0]
  42  -live- %r1
  42  getfield_gc_r_pure %r1, FieldDescr<rpython.rlib.mutbuffer.MutableStringBuffer.inst_ll_val> -> %r0
  47  -live- %r0, %r1
  47  goto_if_not_ptr_nonzero %r0, L1
  51  setfield_gc_r %r1, $<* struct rpy_string>, FieldDescr<rpython.rlib.mutbuffer.MutableStringBuffer.inst_ll_val>
  56  setfield_gc_i %r1, $1, FieldDescr<rpython.rlib.buffer.Buffer.inst_readonly>
  61  ref_return %r0
  63  ---
  63  L1:
  63  raise $<* struct object>
