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authorJustin Bogner <mail@justinbogner.com>2014-05-07 02:11:18 +0000
committerJustin Bogner <mail@justinbogner.com>2014-05-07 02:11:18 +0000
commit56d05e468cdfd4ad195f264974f1b841bc4ca785 (patch)
tree6b64409c6ba060df470fa71f1a73f671869d32e3 /lib/IR/GCOV.cpp
parent6d46f2d3941474d5db59c0dc4e85779ca1af3376 (diff)
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llvm-cov: Implement --no-output
In gcov, there's a -n/--no-output option, which disables the writing of any .gcov files, so that it emits only the summary info on stdout. This implements the same behaviour in llvm-cov. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208148 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/IR/GCOV.cpp')
-rw-r--r--lib/IR/GCOV.cpp58
1 files changed, 43 insertions, 15 deletions
diff --git a/lib/IR/GCOV.cpp b/lib/IR/GCOV.cpp
index 522716309a..05fe1e07df 100644
--- a/lib/IR/GCOV.cpp
+++ b/lib/IR/GCOV.cpp
@@ -467,6 +467,38 @@ static std::string mangleCoveragePath(StringRef Filename, bool PreservePaths) {
return Result.str();
}
+std::string FileInfo::getCoveragePath(StringRef Filename,
+ StringRef MainFilename) {
+ if (Options.NoOutput)
+ // This is probably a bug in gcov, but when -n is specified, paths aren't
+ // mangled at all, and the -l and -p options are ignored. Here, we do the
+ // same.
+ return Filename;
+
+ std::string CoveragePath;
+ if (Options.LongFileNames && !Filename.equals(MainFilename))
+ CoveragePath =
+ mangleCoveragePath(MainFilename, Options.PreservePaths) + "##";
+ CoveragePath +=
+ mangleCoveragePath(Filename, Options.PreservePaths) + ".gcov";
+ return CoveragePath;
+}
+
+std::unique_ptr<raw_ostream>
+FileInfo::openCoveragePath(StringRef CoveragePath) {
+ if (Options.NoOutput)
+ return make_unique<raw_null_ostream>();
+
+ std::string ErrorInfo;
+ auto OS = make_unique<raw_fd_ostream>(CoveragePath.str().c_str(), ErrorInfo,
+ sys::fs::F_Text);
+ if (!ErrorInfo.empty()) {
+ errs() << ErrorInfo << "\n";
+ return make_unique<raw_null_ostream>();
+ }
+ return std::move(OS);
+}
+
/// print - Print source files with collected line count information.
void FileInfo::print(StringRef MainFilename, StringRef GCNOFile,
StringRef GCDAFile) {
@@ -480,16 +512,9 @@ void FileInfo::print(StringRef MainFilename, StringRef GCNOFile,
}
StringRef AllLines = Buff->getBuffer();
- std::string CoveragePath;
- if (Options.LongFileNames && !Filename.equals(MainFilename))
- CoveragePath =
- mangleCoveragePath(MainFilename, Options.PreservePaths) + "##";
- CoveragePath +=
- mangleCoveragePath(Filename, Options.PreservePaths) + ".gcov";
- std::string ErrorInfo;
- raw_fd_ostream OS(CoveragePath.c_str(), ErrorInfo, sys::fs::F_Text);
- if (!ErrorInfo.empty())
- errs() << ErrorInfo << "\n";
+ std::string CoveragePath = getCoveragePath(Filename, MainFilename);
+ std::unique_ptr<raw_ostream> S = openCoveragePath(CoveragePath);
+ raw_ostream &OS = *S;
OS << " -: 0:Source:" << Filename << "\n";
OS << " -: 0:Graph:" << GCNOFile << "\n";
@@ -606,10 +631,11 @@ void FileInfo::print(StringRef MainFilename, StringRef GCNOFile,
if (Options.FuncCoverage)
printFuncCoverage();
printFileCoverage();
+ return;
}
/// printFunctionSummary - Print function and block summary.
-void FileInfo::printFunctionSummary(raw_fd_ostream &OS,
+void FileInfo::printFunctionSummary(raw_ostream &OS,
const FunctionVector &Funcs) const {
for (FunctionVector::const_iterator I = Funcs.begin(), E = Funcs.end();
I != E; ++I) {
@@ -631,7 +657,7 @@ void FileInfo::printFunctionSummary(raw_fd_ostream &OS,
}
/// printBlockInfo - Output counts for each block.
-void FileInfo::printBlockInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
+void FileInfo::printBlockInfo(raw_ostream &OS, const GCOVBlock &Block,
uint32_t LineIndex, uint32_t &BlockNo) const {
if (Block.getCount() == 0)
OS << " $$$$$:";
@@ -641,7 +667,7 @@ void FileInfo::printBlockInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
}
/// printBranchInfo - Print conditional branch probabilities.
-void FileInfo::printBranchInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
+void FileInfo::printBranchInfo(raw_ostream &OS, const GCOVBlock &Block,
GCOVCoverage &Coverage, uint32_t &EdgeNo) {
SmallVector<uint64_t, 16> BranchCounts;
uint64_t TotalCounts = 0;
@@ -671,7 +697,7 @@ void FileInfo::printBranchInfo(raw_fd_ostream &OS, const GCOVBlock &Block,
}
/// printUncondBranchInfo - Print unconditional branch probabilities.
-void FileInfo::printUncondBranchInfo(raw_fd_ostream &OS, uint32_t &EdgeNo,
+void FileInfo::printUncondBranchInfo(raw_ostream &OS, uint32_t &EdgeNo,
uint64_t Count) const {
OS << format("unconditional %2u ", EdgeNo++)
<< formatBranchInfo(Options, Count, Count) << "\n";
@@ -717,6 +743,8 @@ void FileInfo::printFileCoverage() const {
const GCOVCoverage &Coverage = I->second;
outs() << "File '" << Coverage.Name << "'\n";
printCoverage(Coverage);
- outs() << Coverage.Name << ":creating '" << Filename << "'\n\n";
+ if (!Options.NoOutput)
+ outs() << Coverage.Name << ":creating '" << Filename << "'\n";
+ outs() << "\n";
}
}