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ProfileData: Add support for the indexed instrprof format

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This adds support for an indexed instrumentation based profiling
format, which is just a small header and an on disk hash table.  This
format will be used by clang's -fprofile-instr-use= for PGO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206656 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Justin Bogner
2014-04-18 21:48:40 +00:00
parent 4c464def6a
commit e153fb33e4
10 changed files with 377 additions and 35 deletions
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9
tools/llvm-profdata/llvm-profdata.cpp
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@ -39,16 +39,15 @@ int merge_main(int argc, const char *argv[]) {
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::alias OutputFilenameA("o", cl::desc("Alias for --output"), cl::Required,
cl::aliasopt(OutputFilename));
cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");
if (OutputFilename.empty())
OutputFilename = "-";
if (OutputFilename.compare("-") == 0)
exitWithError("Cannot write indexed profdata format to stdout.");
std::string ErrorInfo;
// FIXME: F_Text would be available if line_iterator could accept CRLF.
raw_fd_ostream Output(OutputFilename.data(), ErrorInfo, sys::fs::F_None);
if (!ErrorInfo.empty())
exitWithError(ErrorInfo, OutputFilename);