[ARM] Prevent generating NEON stack accesses under MVE.
[llvm-complete.git] / tools / llvm-cov / gcov.cpp
blob8a00ff64711fbd2de266eb2135968ef57b05f229
1 //===- gcov.cpp - GCOV compatible LLVM coverage tool ----------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // llvm-cov is a command line tools to analyze and report coverage information.
11 //===----------------------------------------------------------------------===//
13 #include "llvm/ProfileData/GCOV.h"
14 #include "llvm/ADT/SmallString.h"
15 #include "llvm/Support/CommandLine.h"
16 #include "llvm/Support/Errc.h"
17 #include "llvm/Support/FileSystem.h"
18 #include "llvm/Support/Path.h"
19 #include <system_error>
20 using namespace llvm;
22 static void reportCoverage(StringRef SourceFile, StringRef ObjectDir,
23 const std::string &InputGCNO,
24 const std::string &InputGCDA, bool DumpGCOV,
25 const GCOV::Options &Options) {
26 SmallString<128> CoverageFileStem(ObjectDir);
27 if (CoverageFileStem.empty()) {
28 // If no directory was specified with -o, look next to the source file.
29 CoverageFileStem = sys::path::parent_path(SourceFile);
30 sys::path::append(CoverageFileStem, sys::path::stem(SourceFile));
31 } else if (sys::fs::is_directory(ObjectDir))
32 // A directory name was given. Use it and the source file name.
33 sys::path::append(CoverageFileStem, sys::path::stem(SourceFile));
34 else
35 // A file was given. Ignore the source file and look next to this file.
36 sys::path::replace_extension(CoverageFileStem, "");
38 std::string GCNO = InputGCNO.empty()
39 ? std::string(CoverageFileStem.str()) + ".gcno"
40 : InputGCNO;
41 std::string GCDA = InputGCDA.empty()
42 ? std::string(CoverageFileStem.str()) + ".gcda"
43 : InputGCDA;
44 GCOVFile GF;
46 ErrorOr<std::unique_ptr<MemoryBuffer>> GCNO_Buff =
47 MemoryBuffer::getFileOrSTDIN(GCNO);
48 if (std::error_code EC = GCNO_Buff.getError()) {
49 errs() << GCNO << ": " << EC.message() << "\n";
50 return;
52 GCOVBuffer GCNO_GB(GCNO_Buff.get().get());
53 if (!GF.readGCNO(GCNO_GB)) {
54 errs() << "Invalid .gcno File!\n";
55 return;
58 ErrorOr<std::unique_ptr<MemoryBuffer>> GCDA_Buff =
59 MemoryBuffer::getFileOrSTDIN(GCDA);
60 if (std::error_code EC = GCDA_Buff.getError()) {
61 if (EC != errc::no_such_file_or_directory) {
62 errs() << GCDA << ": " << EC.message() << "\n";
63 return;
65 // Clear the filename to make it clear we didn't read anything.
66 GCDA = "-";
67 } else {
68 GCOVBuffer GCDA_GB(GCDA_Buff.get().get());
69 if (!GF.readGCDA(GCDA_GB)) {
70 errs() << "Invalid .gcda File!\n";
71 return;
75 if (DumpGCOV)
76 GF.print(errs());
78 FileInfo FI(Options);
79 GF.collectLineCounts(FI);
80 FI.print(llvm::outs(), SourceFile, GCNO, GCDA);
83 int gcovMain(int argc, const char *argv[]) {
84 cl::list<std::string> SourceFiles(cl::Positional, cl::OneOrMore,
85 cl::desc("SOURCEFILE"));
87 cl::opt<bool> AllBlocks("a", cl::Grouping, cl::init(false),
88 cl::desc("Display all basic blocks"));
89 cl::alias AllBlocksA("all-blocks", cl::aliasopt(AllBlocks));
91 cl::opt<bool> BranchProb("b", cl::Grouping, cl::init(false),
92 cl::desc("Display branch probabilities"));
93 cl::alias BranchProbA("branch-probabilities", cl::aliasopt(BranchProb));
95 cl::opt<bool> BranchCount("c", cl::Grouping, cl::init(false),
96 cl::desc("Display branch counts instead "
97 "of percentages (requires -b)"));
98 cl::alias BranchCountA("branch-counts", cl::aliasopt(BranchCount));
100 cl::opt<bool> LongNames("l", cl::Grouping, cl::init(false),
101 cl::desc("Prefix filenames with the main file"));
102 cl::alias LongNamesA("long-file-names", cl::aliasopt(LongNames));
104 cl::opt<bool> FuncSummary("f", cl::Grouping, cl::init(false),
105 cl::desc("Show coverage for each function"));
106 cl::alias FuncSummaryA("function-summaries", cl::aliasopt(FuncSummary));
108 cl::opt<bool> NoOutput("n", cl::Grouping, cl::init(false),
109 cl::desc("Do not output any .gcov files"));
110 cl::alias NoOutputA("no-output", cl::aliasopt(NoOutput));
112 cl::opt<std::string> ObjectDir(
113 "o", cl::value_desc("DIR|FILE"), cl::init(""),
114 cl::desc("Find objects in DIR or based on FILE's path"));
115 cl::alias ObjectDirA("object-directory", cl::aliasopt(ObjectDir));
116 cl::alias ObjectDirB("object-file", cl::aliasopt(ObjectDir));
118 cl::opt<bool> PreservePaths("p", cl::Grouping, cl::init(false),
119 cl::desc("Preserve path components"));
120 cl::alias PreservePathsA("preserve-paths", cl::aliasopt(PreservePaths));
122 cl::opt<bool> UncondBranch("u", cl::Grouping, cl::init(false),
123 cl::desc("Display unconditional branch info "
124 "(requires -b)"));
125 cl::alias UncondBranchA("unconditional-branches", cl::aliasopt(UncondBranch));
127 cl::opt<bool> HashFilenames("x", cl::Grouping, cl::init(false),
128 cl::desc("Hash long pathnames"));
129 cl::alias HashFilenamesA("hash-filenames", cl::aliasopt(HashFilenames));
132 cl::OptionCategory DebugCat("Internal and debugging options");
133 cl::opt<bool> DumpGCOV("dump", cl::init(false), cl::cat(DebugCat),
134 cl::desc("Dump the gcov file to stderr"));
135 cl::opt<std::string> InputGCNO("gcno", cl::cat(DebugCat), cl::init(""),
136 cl::desc("Override inferred gcno file"));
137 cl::opt<std::string> InputGCDA("gcda", cl::cat(DebugCat), cl::init(""),
138 cl::desc("Override inferred gcda file"));
140 cl::ParseCommandLineOptions(argc, argv, "LLVM code coverage tool\n");
142 GCOV::Options Options(AllBlocks, BranchProb, BranchCount, FuncSummary,
143 PreservePaths, UncondBranch, LongNames, NoOutput,
144 HashFilenames);
146 for (const auto &SourceFile : SourceFiles)
147 reportCoverage(SourceFile, ObjectDir, InputGCNO, InputGCDA, DumpGCOV,
148 Options);
149 return 0;