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import py
import sys
from rpython.rtyper.lltypesystem import lltype, llmemory
from rpython.jit.tool.oparser import parse, OpParser
from rpython.jit.metainterp.resoperation import rop
from rpython.jit.metainterp.history import AbstractDescr, JitCellToken,\
TargetToken
class BaseTestOparser(object):
OpParser = None
def parse(self, *args, **kwds):
kwds['OpParser'] = self.OpParser
return parse(*args, **kwds)
def test_basic_parse(self):
x = """
[i0, i1]
# a comment
i2 = int_add(i0, i1)
i3 = int_sub(i2, 3) # another comment
finish() # (tricky)
"""
loop = self.parse(x)
assert len(loop.operations) == 3
assert [op.getopnum() for op in loop.operations] == [rop.INT_ADD, rop.INT_SUB,
rop.FINISH]
assert len(loop.inputargs) == 2
assert loop.operations[-1].getdescr()
def test_const_ptr_subops(self):
x = """
[p0]
guard_class(p0, ConstClass(vtable)) []
"""
S = lltype.Struct('S')
vtable = lltype.nullptr(S)
loop = self.parse(x, None, locals())
assert len(loop.operations) == 1
assert loop.operations[0].getdescr()
assert loop.operations[0].getfailargs() == []
def test_descr(self):
class Xyz(AbstractDescr):
I_am_a_descr = True # for the mock case
x = """
[p0]
i1 = getfield_gc_i(p0, descr=stuff)
"""
stuff = Xyz()
loop = self.parse(x, None, locals())
assert loop.operations[0].getdescr() is stuff
def test_after_fail(self):
x = """
[i0]
guard_value(i0, 3) []
i1 = int_add(1, 2)
"""
loop = self.parse(x, None, {})
assert len(loop.operations) == 2
def test_descr_setfield(self):
class Xyz(AbstractDescr):
I_am_a_descr = True # for the mock case
x = """
[p0]
setfield_gc(p0, 3, descr=stuff)
"""
stuff = Xyz()
loop = self.parse(x, None, locals())
assert loop.operations[0].getdescr() is stuff
def test_getvar_const_ptr(self):
x = '''
[]
call_n(ConstPtr(func_ptr))
'''
TP = lltype.GcArray(lltype.Signed)
NULL = lltype.cast_opaque_ptr(llmemory.GCREF, lltype.nullptr(TP))
loop = self.parse(x, None, {'func_ptr' : NULL})
assert loop.operations[0].getarg(0).value == NULL
def test_jump_target(self):
x = '''
[]
jump()
'''
loop = self.parse(x)
assert loop.operations[0].getdescr() is loop.original_jitcell_token
def test_jump_target_other(self):
looptoken = JitCellToken()
looptoken.I_am_a_descr = True # for the mock case
x = '''
[]
jump(descr=looptoken)
'''
loop = self.parse(x, namespace=locals())
assert loop.operations[0].getdescr() is looptoken
def test_floats(self):
x = '''
[f0]
f1 = float_add(f0, 3.5)
'''
loop = self.parse(x)
box = loop.operations[0].getarg(0)
# we cannot use isinstance, because in case of mock the class will be
# constructed on the fly
assert box.__class__.__name__ == 'InputArgFloat'
def test_debug_merge_point(self):
x = '''
[]
debug_merge_point(0, 0, "info")
debug_merge_point(0, 0, 'info')
debug_merge_point(1, 1, '<some ('other.')> info')
debug_merge_point(0, 0, '(stuff) #1')
'''
loop = self.parse(x)
assert loop.operations[0].getarg(2)._get_str() == 'info'
assert loop.operations[0].getarg(1).value == 0
assert loop.operations[1].getarg(2)._get_str() == 'info'
assert loop.operations[2].getarg(2)._get_str() == "<some ('other.')> info"
assert loop.operations[2].getarg(1).value == 1
assert loop.operations[3].getarg(2)._get_str() == "(stuff) #1"
def test_descr_with_obj_print(self):
x = '''
[p0]
setfield_gc(p0, 1, descr=<SomeDescr>)
'''
loop = self.parse(x)
# assert did not explode
example_loop_log = '''\
# bridge out of Guard12, 6 ops
[i0, i1, i2]
i4 = int_add(i0, 2)
i6 = int_sub(i1, 1)
i8 = int_gt(i6, 3)
guard_true(i8, descr=<Guard15>) [i4, i6]
debug_merge_point('(no jitdriver.get_printable_location!)', 0)
jump(i6, i4, descr=<Loop0>)
'''
def test_parse_no_namespace(self):
loop = self.parse(self.example_loop_log, no_namespace=True)
def test_attach_comment_to_loop(self):
loop = self.parse(self.example_loop_log, no_namespace=True)
assert loop.comment == ' # bridge out of Guard12, 6 ops'
def test_parse_new_with_comma(self):
# this is generated by PYPYJITLOG, check that we can handle it
x = '''
[]
p0 = new(, descr=<SizeDescr 12>)
'''
loop = self.parse(x)
assert loop.operations[0].getopname() == 'new'
def test_no_fail_args(self):
x = '''
[i0]
guard_true(i0, descr=<Guard0>)
'''
loop = self.parse(x, nonstrict=True)
assert loop.operations[0].getfailargs() == []
def test_offsets(self):
x = """
[i0, i1]
+10: i2 = int_add(i0, i1)
i3 = int_add(i2, 3)
"""
# +30: --end of the loop--
loop = self.parse(x)
assert loop.operations[0].offset == 10
assert not hasattr(loop.operations[1], 'offset')
def test_last_offset(self):
x = """
[i0, i1]
+10: i2 = int_add(i0, i1)
i3 = int_add(i2, 3)
+30: --end of the loop--
"""
loop = self.parse(x)
assert len(loop.operations) == 2
assert loop.last_offset == 30
class TestOpParser(BaseTestOparser):
OpParser = OpParser
def test_label(self):
x = """
[i0]
label(i0, descr=1)
jump(i0, descr=1)
"""
loop = self.parse(x)
assert loop.operations[0].getdescr() is loop.operations[1].getdescr()
assert isinstance(loop.operations[0].getdescr(), TargetToken)
class ForbiddenModule(object):
def __init__(self, name, old_mod):
self.name = name
self.old_mod = old_mod
def __getattr__(self, attr):
assert False, "You should not import module %s" % self.name
class TestOpParserWithMock(BaseTestOparser):
class OpParser(OpParser):
use_mock_model = True
def setup_class(cls):
forbidden_mods = [
'rpython.jit.metainterp.history',
'rpython.rtyper.lltypesystem.lltype',
]
for modname in forbidden_mods:
if modname in sys.modules:
newmod = ForbiddenModule(modname, sys.modules[modname])
sys.modules[modname] = newmod
def teardown_class(cls):
for modname, mod in sys.modules.iteritems():
if isinstance(mod, ForbiddenModule):
sys.modules[modname] = mod.old_mod
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