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
|
import py
import re
from rpython.tool.logparser import extract_category
from rpython.jit.backend.tool.viewcode import ObjdumpNotFound
from rpython.tool.jitlogparser.parser import (import_log, parse_log_counts,
mangle_descr)
from pypy.module.pypyjit.test_pypy_c.test_00_model import BaseTestPyPyC
class TestLogParser(BaseTestPyPyC):
log_string = 'jit-log-opt,jit-backend'
def test(self):
def fn_with_bridges(N):
def is_prime(x):
for y in range(2, x):
if x % y == 0:
return False
return True
result = 0
for x in range(N):
if x % 3 == 0:
result += 5
elif x % 5 == 0:
result += 3
elif is_prime(x):
result += x
elif x == 99:
result *= 2
return result
#
N = 10000
_log = self.run(fn_with_bridges, [N])
log, loops = import_log(_log.logfile)
parse_log_counts(extract_category(log, 'jit-backend-count'), loops)
is_prime_loops = []
fn_with_bridges_loops = []
bridges = {}
for loop in loops:
if hasattr(loop, 'force_asm'):
try:
loop.force_asm()
except ObjdumpNotFound:
py.test.skip("ObjDump was not found, skipping")
assert loop.count > 0
if 'is_prime' in loop.comment:
is_prime_loops.append(loop)
elif 'fn_with_bridges' in loop.comment:
fn_with_bridges_loops.append(loop)
elif 'tuple.contains' in loop.comment:
pass
elif ' bridge ' in loop.comment:
key = mangle_descr(loop.descr)
assert key not in bridges
bridges[key] = loop
by_count = lambda l: -l.count
is_prime_loops.sort(key=by_count)
fn_with_bridges_loops.sort(key=by_count)
# check that we can find bridges corresponding to " % 3" and " % 5"
mod_bridges = []
for op in fn_with_bridges_loops[0].operations:
if op.descr is not None:
bridge = bridges.get(mangle_descr(op.descr))
if bridge is not None:
mod_bridges.append(bridge)
assert len(mod_bridges) in (1, 2, 3)
# check that counts are reasonable (precise # may change in the future)
assert N - 2000 < sum(l.count for l in fn_with_bridges_loops) < N + 1500
|
