xref: /openbsd-src/gnu/llvm/clang/utils/analyzer/SumTimerInfo.py (revision ec727ea710c91afd8ce4f788c5aaa8482b7b69b2) 
1#!/usr/bin/env python
2
3"""
4Script to Summarize statistics in the scan-build output.
5
6Statistics are enabled by passing '-internal-stats' option to scan-build
7(or '-analyzer-stats' to the analyzer).
8"""
9import sys
10
11if __name__ == '__main__':
12    if len(sys.argv) < 2:
13        print('Usage: ', sys.argv[0],
14              'scan_build_output_file', file=sys.stderr)
15        sys.exit(-1)
16
17    f = open(sys.argv[1], 'r')
18    time = 0.0
19    total_time = 0.0
20    max_time = 0.0
21    warnings = 0
22    count = 0
23    functions_analyzed = 0
24    reachable_blocks = 0
25    reached_max_steps = 0
26    num_steps = 0
27    num_inlined_call_sites = 0
28    num_bifurcated_call_sites = 0
29    max_cfg_size = 0
30
31    for line in f:
32        if "Analyzer total time" in line:
33            s = line.split()
34            time = time + float(s[6])
35            count = count + 1
36            if float(s[6]) > max_time:
37                max_time = float(s[6])
38        if "warning generated." in line or "warnings generated" in line:
39            s = line.split()
40            warnings = warnings + int(s[0])
41        if "The # of functions analysed (as top level)" in line:
42            s = line.split()
43            functions_analyzed = functions_analyzed + int(s[0])
44        if "The % of reachable basic blocks" in line:
45            s = line.split()
46            reachable_blocks = reachable_blocks + int(s[0])
47        if "The # of times we reached the max number of steps" in line:
48            s = line.split()
49            reached_max_steps = reached_max_steps + int(s[0])
50        if "The maximum number of basic blocks in a function" in line:
51            s = line.split()
52            if max_cfg_size < int(s[0]):
53                max_cfg_size = int(s[0])
54        if "The # of steps executed" in line:
55            s = line.split()
56            num_steps = num_steps + int(s[0])
57        if "The # of times we inlined a call" in line:
58            s = line.split()
59            num_inlined_call_sites = num_inlined_call_sites + int(s[0])
60        if "The # of times we split the path due \
61                to imprecise dynamic dispatch info" in line:
62            s = line.split()
63            num_bifurcated_call_sites = num_bifurcated_call_sites + int(s[0])
64        if ")  Total" in line:
65            s = line.split()
66            total_time = total_time + float(s[6])
67
68    print(f"TU count {count}")
69    print(f"Time {time}")
70    print(f"Warnings {warnings}")
71    print(f"Functions analyzed {functions_analyzed}")
72    print(f"Reachable blocks {reachable_blocks}")
73    print(f"Reached max steps {reached_max_steps}")
74    print(f"Number of steps {num_steps}")
75    print(f"Number of inlined calls {num_inlined_call_sites} "
76          f"(bifurcated {num_bifurcated_call_sites})")
77    print(f"Max time {max_time}")
78    print(f"Total time {total_time}")
79    print(f"Max CFG Size {max_cfg_size}")
80