1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
import pytest
from rpython.jit.metainterp.test.support import LLJitMixin
from rpython.rlib.jit import JitDriver, assert_green
pytest.skip("this feature is disabled at the moment!")
# note why it is disabled: before d721da4573ad
# there was a failing assert when inlining python -> sre -> python:
# https://bitbucket.org/pypy/pypy/issues/2775/
# this shows, that the interaction of greenfields and virtualizables is broken,
# because greenfields use MetaInterp.virtualizable_boxes, which confuses
# MetaInterp._nonstandard_virtualizable somehow (and makes no sense
# conceptually anyway). to fix greenfields, the two mechanisms would have to be
# disentangled.
class GreenFieldsTests:
def test_green_field_1(self):
myjitdriver = JitDriver(greens=['ctx.x'], reds=['ctx'])
class Ctx(object):
_immutable_fields_ = ['x']
def __init__(self, x, y):
self.x = x
self.y = y
def f(x, y):
ctx = Ctx(x, y)
while 1:
myjitdriver.can_enter_jit(ctx=ctx)
myjitdriver.jit_merge_point(ctx=ctx)
ctx.y -= 1
if ctx.y < 0:
return ctx.y
def g(y):
return f(5, y) + f(6, y)
#
res = self.meta_interp(g, [7])
assert res == -2
self.check_trace_count(2)
self.check_resops(guard_value=0)
def test_green_field_2(self):
myjitdriver = JitDriver(greens=['ctx.x'], reds=['ctx'])
class Ctx(object):
_immutable_fields_ = ['x']
def __init__(self, x, y):
self.x = x
self.y = y
def f(x, y):
ctx = Ctx(x, y)
while 1:
myjitdriver.can_enter_jit(ctx=ctx)
myjitdriver.jit_merge_point(ctx=ctx)
ctx.y -= 1
if ctx.y < 0:
pass # to just make two paths
if ctx.y < -10:
return ctx.y
def g(y):
return f(5, y) + f(6, y)
#
res = self.meta_interp(g, [7])
assert res == -22
self.check_trace_count(4)
self.check_resops(guard_value=0)
def test_green_field_3(self):
myjitdriver = JitDriver(greens=['ctx.x'], reds=['ctx'])
class Ctx(object):
_immutable_fields_ = ['x']
def __init__(self, x, y):
self.x = x
self.y = y
def f(x, y):
ctx = Ctx(x, y)
while ctx.y > 0:
myjitdriver.can_enter_jit(ctx=ctx)
myjitdriver.jit_merge_point(ctx=ctx)
assert_green(ctx.x)
ctx.y -= ctx.x
return -2100
def g():
return f(5, 35) + f(6, 42)
#
res = self.meta_interp(g, [])
assert res == -4200
class TestLLtypeGreenFieldsTests(GreenFieldsTests, LLJitMixin):
pass
|
