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comparison utils/llvm-gisel-cov.py @ 134:3a76565eade5 LLVM5.0.1

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update 5.0.1
author mir3636
date Sat, 17 Feb 2018 09:57:20 +0900
parents
children c2174574ed3a
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133:c60214abe0e8 134:3a76565eade5
1 #!/usr/bin/env python
2 """
3 Summarize the information in the given coverage files.
4
5 Emits the number of rules covered or the percentage of rules covered depending
6 on whether --num-rules has been used to specify the total number of rules.
7 """
8
9 import argparse
10 import struct
11
12 class FileFormatError(Exception):
13 pass
14
15 def backend_int_pair(s):
16 backend, sep, value = s.partition('=')
17 if (sep is None):
18 raise argparse.ArgumentTypeError("'=' missing, expected name=value")
19 if (not backend):
20 raise argparse.ArgumentTypeError("Expected name=value")
21 if (not value):
22 raise argparse.ArgumentTypeError("Expected name=value")
23 return backend, int(value)
24
25 def main():
26 parser = argparse.ArgumentParser(description=__doc__)
27 parser.add_argument('input', nargs='+')
28 parser.add_argument('--num-rules', type=backend_int_pair, action='append',
29 metavar='BACKEND=NUM',
30 help='Specify the number of rules for a backend')
31 args = parser.parse_args()
32
33 covered_rules = {}
34
35 for input_filename in args.input:
36 with open(input_filename, 'rb') as input_fh:
37 data = input_fh.read()
38 pos = 0
39 while data:
40 backend, _, data = data.partition('\0')
41 pos += len(backend)
42 pos += 1
43
44 if len(backend) == 0:
45 raise FileFormatError()
46 backend, = struct.unpack("%ds" % len(backend), backend)
47
48 while data:
49 if len(data) < 8:
50 raise FileFormatError()
51 rule_id, = struct.unpack("Q", data[:8])
52 pos += 8
53 data = data[8:]
54 if rule_id == (2 ** 64) - 1:
55 break
56 covered_rules[backend] = covered_rules.get(backend, {})
57 covered_rules[backend][rule_id] = covered_rules[backend].get(rule_id, 0) + 1
58
59 num_rules = dict(args.num_rules)
60 for backend, rules_for_backend in covered_rules.items():
61 if backend in num_rules:
62 print "%s: %3.2f%% of rules covered" % (backend, (float(len(rules_for_backend.keys())) / num_rules[backend]) * 100)
63 else:
64 print "%s: %d rules covered" % (backend, len(rules_for_backend.keys()))
65
66 if __name__ == '__main__':
67 main()