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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
//===- llvm-profdata.cpp - LLVM profile data tool -------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// llvm-profdata merges .profdata files.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/StringRef.h"
#include "llvm/ProfileData/InstrProfReader.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
static void exitWithError(const Twine &Message, StringRef Whence = "") {
errs() << "error: ";
if (!Whence.empty())
errs() << Whence << ": ";
errs() << Message << "\n";
::exit(1);
}
int merge_main(int argc, const char *argv[]) {
cl::opt<std::string> Filename1(cl::Positional, cl::Required,
cl::desc("file1"));
cl::opt<std::string> Filename2(cl::Positional, cl::Required,
cl::desc("file2"));
cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
cl::init("-"),
cl::desc("Output file"));
cl::alias OutputFilenameA("o", cl::desc("Alias for --output"),
cl::aliasopt(OutputFilename));
cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");
std::unique_ptr<InstrProfReader> Reader1, Reader2;
if (error_code ec = InstrProfReader::create(Filename1, Reader1))
exitWithError(ec.message(), Filename1);
if (error_code ec = InstrProfReader::create(Filename2, Reader2))
exitWithError(ec.message(), Filename2);
if (OutputFilename.empty())
OutputFilename = "-";
std::string ErrorInfo;
raw_fd_ostream Output(OutputFilename.data(), ErrorInfo, sys::fs::F_Text);
if (!ErrorInfo.empty())
exitWithError(ErrorInfo, OutputFilename);
for (InstrProfIterator I1 = Reader1->begin(), E1 = Reader1->end(),
I2 = Reader2->begin(), E2 = Reader2->end();
I1 != E1 && I2 != E2; ++I1, ++I2) {
if (I1->Name != I2->Name)
exitWithError("Function name mismatch, " + I1->Name + " != " + I2->Name);
if (I1->Hash != I2->Hash)
exitWithError("Function hash mismatch for " + I1->Name);
if (I1->Counts.size() != I2->Counts.size())
exitWithError("Function count mismatch for " + I1->Name);
Output << I1->Name << "\n" << I1->Hash << "\n" << I1->Counts.size() << "\n";
for (size_t II = 0, EE = I1->Counts.size(); II < EE; ++II) {
uint64_t Sum = I1->Counts[II] + I2->Counts[II];
if (Sum < I1->Counts[II])
exitWithError("Counter overflow for " + I1->Name);
Output << Sum << "\n";
}
Output << "\n";
}
if (Reader1->hasError())
exitWithError(Reader1->getError().message(), Filename1);
if (Reader2->hasError())
exitWithError(Reader2->getError().message(), Filename2);
if (!Reader1->isEOF() || !Reader2->isEOF())
exitWithError("Number of instrumented functions differ.");
return 0;
}
int main(int argc, const char *argv[]) {
// Print a stack trace if we signal out.
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
StringRef ProgName(sys::path::filename(argv[0]));
if (argc > 1) {
int (*func)(int, const char *[]) = 0;
if (strcmp(argv[1], "merge") == 0)
func = merge_main;
if (func) {
std::string Invocation(ProgName.str() + " " + argv[1]);
argv[1] = Invocation.c_str();
return func(argc - 1, argv + 1);
}
if (strcmp(argv[1], "-h") == 0 ||
strcmp(argv[1], "-help") == 0 ||
strcmp(argv[1], "--help") == 0) {
errs() << "OVERVIEW: LLVM profile data tools\n\n"
<< "USAGE: " << ProgName << " <command> [args...]\n"
<< "USAGE: " << ProgName << " <command> -help\n\n"
<< "Available commands: merge\n";
return 0;
}
}
if (argc < 2)
errs() << ProgName << ": No command specified!\n";
else
errs() << ProgName << ": Unknown command!\n";
errs() << "USAGE: " << ProgName << " <merge> [args...]\n";
return 1;
}
|
