   0  residual_call_r_i $<* fn ll_liststr2charpp>, R[%r1], <CallDescr(r) EF=5> -> %i0
   7  -live- %i0, %r0
   7  residual_call_r_r $<* fn get_nonmovingbuffer_ll_final_null>, R[%r0], <CallDescr(r) EF=5> -> %r0
  14  -live- %i0, %r0
  14  getfield_gc_i_pure %r0, FieldDescr<tuple3.item0> -> %i1
  19  getfield_gc_r_pure %r0, FieldDescr<tuple3.item1> -> %r1
  24  getfield_gc_i_pure %r0, FieldDescr<tuple3.item2> -> %i2
  29  residual_call_ir_i $<* fn ccall_execv__arrayPtr_arrayPtr>, I[%i1, %i0], R[], <CallDescr(ii) EF=7> -> %i3
  38  -live- %i0, %i1, %i2, %r1
  38  residual_call_ir_v $<* fn free_nonmovingbuffer_ll>, I[%i1, %i2], R[%r1], <CallDescr(iri) EF=2>
  47  residual_call_ir_v $<* fn free_charpp>, I[%i0], R[], <CallDescr(i) EF=2>
  54  residual_call_ir_i $<* fn _ll_1_threadlocalref_get__INTLlT_Signed>, I[$CDefinedIntSymbolic('RPY_TLOFS_rpy_errno')], R[], <CallDescr(i) EF=2 OS_THREADLOCALREF_GET> -> %i0
  62  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00000001a8e84bf0> -> %r0
  66  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<exceptions.EnvironmentError.inst_strerror>
  71  setfield_gc_i %r0, %i0, FieldDescr<exceptions.EnvironmentError.inst_errno>
  76  assert_not_none %r0
  78  -live- %r0
  78  guard_class %r0 -> %i0
  81  -live- %r0
  81  raise %r0
