xref: /openbsd-src/gnu/llvm/clang/utils/analyzer/SumTimerInfo.py (revision 1a8dbaac879b9f3335ad7fb25429ce63ac1d6bac) 
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"""
9from __future__ import absolute_import, division, print_function
10
11import sys
12
13if __name__ == '__main__':
14    if len(sys.argv) < 2:
15        print('Usage: ', sys.argv[0],\
16                             'scan_build_output_file', file=sys.stderr)
17        sys.exit(-1)
18
19    f = open(sys.argv[1], 'r')
20    Time = 0.0
21    TotalTime = 0.0
22    MaxTime = 0.0
23    Warnings = 0
24    Count = 0
25    FunctionsAnalyzed = 0
26    ReachableBlocks = 0
27    ReachedMaxSteps = 0
28    NumSteps = 0
29    NumInlinedCallSites = 0
30    NumBifurcatedCallSites = 0
31    MaxCFGSize = 0
32    for line in f:
33        if ("Analyzer Total Time" in line):
34            s = line.split()
35            Time = Time + float(s[6])
36            Count = Count + 1
37            if (float(s[6]) > MaxTime):
38                MaxTime = float(s[6])
39        if ("warning generated." in line) or ("warnings generated" in line):
40            s = line.split()
41            Warnings = Warnings + int(s[0])
42        if "The # of functions analysed (as top level)" in line:
43            s = line.split()
44            FunctionsAnalyzed = FunctionsAnalyzed + int(s[0])
45        if "The % of reachable basic blocks" in line:
46            s = line.split()
47            ReachableBlocks = ReachableBlocks + int(s[0])
48        if "The # of times we reached the max number of steps" in line:
49            s = line.split()
50            ReachedMaxSteps = ReachedMaxSteps + int(s[0])
51        if "The maximum number of basic blocks in a function" in line:
52            s = line.split()
53            if MaxCFGSize < int(s[0]):
54                MaxCFGSize = int(s[0])
55        if "The # of steps executed" in line:
56            s = line.split()
57            NumSteps = NumSteps + int(s[0])
58        if "The # of times we inlined a call" in line:
59            s = line.split()
60            NumInlinedCallSites = NumInlinedCallSites + int(s[0])
61        if "The # of times we split the path due \
62                to imprecise dynamic dispatch info" in line:
63            s = line.split()
64            NumBifurcatedCallSites = NumBifurcatedCallSites + int(s[0])
65        if ")  Total" in line:
66            s = line.split()
67            TotalTime = TotalTime + float(s[6])
68
69    print("TU Count %d" % (Count))
70    print("Time %f" % (Time))
71    print("Warnings %d" % (Warnings))
72    print("Functions Analyzed %d" % (FunctionsAnalyzed))
73    print("Reachable Blocks %d" % (ReachableBlocks))
74    print("Reached Max Steps %d" % (ReachedMaxSteps))
75    print("Number of Steps %d" % (NumSteps))
76    print("Number of Inlined calls %d (bifurcated %d)" % (
77        NumInlinedCallSites, NumBifurcatedCallSites))
78    print("MaxTime %f" % (MaxTime))
79    print("TotalTime %f" % (TotalTime))
80    print("Max CFG Size %d" % (MaxCFGSize))
81