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import py
from pypy.module.pypyjit.test_pypy_c.test_00_model import BaseTestPyPyC
class TestInstance(BaseTestPyPyC):
def test_virtual_instance(self):
def main(n):
class A(object):
pass
#
i = 0
while i < n:
a = A()
assert isinstance(a, A)
assert not isinstance(a, int)
a.x = 2
i = i + a.x
return i
#
log = self.run(main, [1000], threshold = 400)
assert log.result == 1000
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i7 = int_lt(i5, i6)
guard_true(i7, descr=...)
guard_not_invalidated(descr=...)
i9 = int_add_ovf(i5, 2)
guard_no_overflow(descr=...)
--TICK--
jump(..., descr=...)
""")
def test_load_attr(self):
src = '''
class A(object):
pass
a = A()
a.x = 1
def main(n):
i = 0
while i < n:
i = i + a.x
return i
'''
log = self.run(src, [1000])
assert log.result == 1000
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i9 = int_lt(i5, i6)
guard_true(i9, descr=...)
guard_not_invalidated(descr=...)
i10 = int_add(i5, 1)
--TICK--
jump(..., descr=...)
""")
def test_getattr_with_dynamic_attribute(self):
src = """
class A(object):
pass
l = ["x", "y"]
def main():
sum = 0
a = A()
a.a1 = 0
a.a2 = 0
a.a3 = 0
a.a4 = 0
a.a5 = 0 # workaround, because the first five attributes need a promotion
a.x = 1
a.y = 2
i = 0
while i < 500:
name = l[i % 2]
sum += getattr(a, name)
i += 1
return sum
"""
log = self.run(src, [])
assert log.result == 250 + 250*2
loops = log.loops_by_filename(self.filepath)
assert len(loops) == 1
def test_mutate_class_int(self):
def fn(n):
class A(object):
count = 1
def __init__(self, a):
self.a = a
def f(self):
return self.count
i = 0
a = A(1)
while i < n:
A.count += 1 # ID: mutate
i = a.f() # ID: meth1
return i
#
log = self.run(fn, [1000], threshold=10)
assert log.result == 1000
#
# first, we test the entry bridge
# -------------------------------
entry_bridge, = log.loops_by_filename(self.filepath, is_entry_bridge=True)
ops = entry_bridge.ops_by_id('mutate', opcode='LOAD_ATTR')
# in PyPy3 we get a dummy getfield_gc_r (*) for
# W_UnicodeObject._utf8, which is usually removed by the backend
assert log.opnames(ops) == ['guard_value',
'getfield_gc_r', # <= (*)
'guard_not_invalidated',
'getfield_gc_i']
# the STORE_ATTR is folded away
assert list(entry_bridge.ops_by_id('meth1', opcode='STORE_ATTR')) == []
#
# then, the actual loop
# ----------------------
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i58 = int_lt(i38, i31)
guard_true(i58, descr=...)
guard_not_invalidated(descr=...)
i59 = int_add_ovf(i57, 1)
guard_no_overflow(descr=...)
p60 = force_token()
i61 = getfield_raw_i(..., descr=...)
setfield_gc(ConstPtr(ptr39), i59, descr=...)
i62 = int_lt(i61, 0)
guard_false(i62, descr=...)
jump(..., descr=...)
""")
def test_mutate_class(self):
def fn(n):
class LL(object):
def __init__(self, n):
self.n = n
class A(object):
count = None
def __init__(self, a):
self.a = a
def f(self):
return self.count
i = 0
a = A(1)
while i < n:
A.count = LL(A.count) # ID: mutate
a.f() # ID: meth1
i += 1
return i
#
log = self.run(fn, [1000], threshold=10)
assert log.result == 1000
#
# first, we test the entry bridge
# -------------------------------
entry_bridge, = log.loops_by_filename(self.filepath, is_entry_bridge=True)
ops = entry_bridge.ops_by_id('mutate', opcode='LOAD_ATTR')
# in PyPy3 we get a dummy getfield_gc_r (*) for
# W_UnicodeObject._utf8, which is usually removed by the backend
assert log.opnames(ops) == ['guard_value',
'getfield_gc_r', # <= (*)
'guard_not_invalidated',
'getfield_gc_r', 'guard_nonnull_class',
'getfield_gc_r', 'guard_value', # type check on the attribute
]
# the STORE_ATTR is folded away
assert list(entry_bridge.ops_by_id('meth1', opcode='STORE_ATTR')) == []
#
# then, the actual loop
# ----------------------
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i70 = int_lt(i58, i33)
guard_true(i70, descr=...)
guard_not_invalidated(descr=...)
p71 = getfield_gc_r(p64, descr=...)
guard_value(p71, ConstPtr(ptr42), descr=...)
p72 = force_token()
p73 = force_token()
i74 = int_add(i58, 1)
i75 = getfield_raw_i(..., descr=...)
i76 = int_lt(i75, 0)
guard_false(i76, descr=...)
p77 = new_with_vtable(descr=...)
setfield_gc(p77, p64, descr=...)
setfield_gc(p77, ConstPtr(null), descr=...)
setfield_gc(p77, ConstPtr(null), descr=...)
setfield_gc(p77, ConstPtr(null), descr=...)
setfield_gc(p77, ConstPtr(null), descr=...)
setfield_gc(p77, ConstPtr(ptr42), descr=...)
setfield_gc(ConstPtr(ptr69), p77, descr=...)
jump(..., descr=...)
""")
def test_python_contains(self):
def main():
class A(object):
def __contains__(self, v):
return True
i = 0
a = A()
while i < 100:
i += i in a # ID: contains
b = 0 # to make sure that JUMP_ABSOLUTE is not part of the ID
log = self.run(main, [], threshold=80)
loop, = log.loops_by_filename(self.filepath)
assert loop.match_by_id("contains", """
guard_not_invalidated(descr=...)
i11 = force_token()
i12 = int_add(i5, 1)
""")
def test_id_compare_optimization(self):
def main():
class A(object):
pass
#
i = 0
a = A()
while i < 300:
new_a = A()
if new_a != a: # ID: compare
pass
i += 1
return i
#
log = self.run(main, [])
loop, = log.loops_by_filename(self.filepath)
assert loop.match_by_id("compare", "") # optimized away
def test_super(self):
def main():
class A(object):
def m(self, x):
return x + 1
class B(A):
def m(self, x):
return super(B, self).m(x)
i = 0
while i < 300:
i = B().m(i)
return i
log = self.run(main, [])
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i78 = int_lt(i72, 300)
guard_true(i78, descr=...)
guard_not_invalidated(descr=...)
i79 = force_token()
i80 = force_token()
i81 = int_add(i72, 1)
--TICK--
jump(..., descr=...)
""")
def test_super_no_args(self):
def main():
class A(object):
def m(self, x):
return x + 1
class B(A):
def m(self, x):
return super().m(x)
i = 0
while i < 300:
i = B().m(i)
return i
log = self.run(main, [])
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i78 = int_lt(i72, 300)
guard_true(i78, descr=...)
guard_not_invalidated(descr=...)
p1 = force_token()
p65 = force_token()
p3 = force_token()
i81 = int_add(i72, 1)
# can't use TICK here, because of the extra setfield_gc
ticker0 = getfield_raw_i(#, descr=<FieldS pypysig_long_struct.c_value .*>)
setfield_gc(p0, p65, descr=<FieldP pypy.interpreter.pyframe.PyFrame.vable_token .>)
ticker_cond0 = int_lt(ticker0, 0)
guard_false(ticker_cond0, descr=...)
jump(..., descr=...)
""")
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