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
|
#!/usr/bin/env python
# Given a -print-before-all and/or -print-after-all -print-module-scope log from
# an opt invocation, chunk it into a series of individual IR files, one for each
# pass invocation. If the log ends with an obvious stack trace, try to split off
# a separate "crashinfo.txt" file leaving only the valid input IR in the last
# chunk. Files are written to current working directory.
import sys
import re
chunk_id = 0
pass_regex = re.compile(r"\(([\w-]+)\)")
# This function gets the pass name from the following line:
# *** IR Dump Before/After PASS_NAME... ***
def get_pass_name(line, prefix):
# avoid accidentally parsing function name in e.g.
# "*** IR Dump Before InlinerPass on (foo) ***"
line = line.split(" on ")[0]
non_pretty_pass_name = pass_regex.search(line)
# machine function pass names can contain spaces,
# but have a CLI friendly name also, e.g.:
# "*** IR Dump Before Stack Frame Layout Analysis (stack-frame-layout) ***"
if non_pretty_pass_name:
return non_pretty_pass_name.group(1)
short_line = line[line.find(prefix) + len(prefix) + 1 :]
return re.split(" |<", short_line)[0]
def print_chunk(lines, prefix, pass_name):
global chunk_id
fname = str(chunk_id).zfill(4) + "-" + prefix + "-" + pass_name + ".ll"
chunk_id = chunk_id + 1
print("writing chunk " + fname + " (" + str(len(lines)) + " lines)")
with open(fname, "w") as f:
f.writelines(lines)
is_dump = False
cur = []
for line in sys.stdin:
if "*** IR Dump Before " in line:
if len(cur) != 0:
print_chunk(cur, "before", pass_name)
cur = []
cur.append("; " + line)
pass_name = get_pass_name(line, "Before")
elif "*** IR Dump After " in line:
if len(cur) != 0:
print_chunk(cur, "after", pass_name)
cur = []
cur.append("; " + line)
pass_name = get_pass_name(line, "After")
elif line.startswith("Stack dump:"):
print_chunk(cur, "crash", pass_name)
cur = []
cur.append(line)
is_dump = True
else:
cur.append(line)
if is_dump:
print("writing crashinfo.txt (" + str(len(cur)) + " lines)")
with open("crashinfo.txt", "w") as f:
f.writelines(cur)
else:
print_chunk(cur, "last", pass_name)
|
