# Pastebin 4DAXLt1X
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

self = <rpython.jit.backend.aarch64.test.test_runner.TestARM64 object at 0x7fb5680190>

    def test_compile_linear_loop(self):
        loop = parse("""
            [i0]
            i1 = int_add(i0, 1)
            finish(i1, descr=faildescr)
            """, namespace={"faildescr": BasicFinalDescr(1)})
        looptoken = JitCellToken()
>       self.cpu.compile_loop(loop.inputargs, loop.operations, looptoken)

../test/runner_test.py:152: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
../llsupport/llmodel.py:113: in compile_loop
    looptoken, log)
assembler.py:60: in assemble_loop
    allgcrefs)
regalloc.py:193: in prepare_loop
    operations = self._prepare(inputargs, operations, allgcrefs)
regalloc.py:183: in _prepare
    longevity, last_real_usage = compute_vars_longevity(inputargs, operations)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <rpython.jit.backend.llsupport.regalloc.LifetimeManager object at 0x7fb5695c50>, var = 0

    def __getitem__(self, var):
>       return self.longevity[var]
E       KeyError: 0

../llsupport/regalloc.py:1043: KeyError
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entering PDB >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[26] > /home/fijal/pypy/rpython/jit/backend/llsupport/regalloc.py(1043)__getitem__()
-> return self.longevity[var]