#ifndef LLVM_PROFILEDATA_SAMPLEPROFWRITER_H
#define LLVM_PROFILEDATA_SAMPLEPROFWRITER_H
+#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/StringRef.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Module.h"
#include "llvm/ProfileData/SampleProf.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/FileSystem.h"
: OS(Filename, EC, Flags) {}
virtual ~SampleProfileWriter() {}
- /// \brief Write sample profiles in \p S for function \p FName.
+ /// Write sample profiles in \p S for function \p FName.
///
- /// \returns true if the file was updated successfully. False, otherwise.
- virtual bool write(StringRef FName, const FunctionSamples &S) = 0;
+ /// \returns status code of the file update operation.
+ virtual std::error_code write(StringRef FName, const FunctionSamples &S) = 0;
- /// \brief Write sample profiles in \p S for function \p F.
- bool write(const Function &F, const FunctionSamples &S) {
- return write(F.getName(), S);
- }
-
- /// \brief Write all the sample profiles for all the functions in \p M.
+ /// Write all the sample profiles in the given map of samples.
///
- /// \returns true if the file was updated successfully. False, otherwise.
- bool write(const Module &M, StringMap<FunctionSamples> &P) {
- for (const auto &F : M) {
- StringRef Name = F.getName();
- if (!write(Name, P[Name]))
- return false;
- }
- return true;
- }
+ /// \returns status code of the file update operation.
+ std::error_code write(const StringMap<FunctionSamples> &ProfileMap) {
+ if (std::error_code EC = writeHeader(ProfileMap))
+ return EC;
- /// \brief Write all the sample profiles in the given map of samples.
- ///
- /// \returns true if the file was updated successfully. False, otherwise.
- bool write(StringMap<FunctionSamples> &ProfileMap) {
- for (auto &I : ProfileMap) {
+ for (const auto &I : ProfileMap) {
StringRef FName = I.first();
- FunctionSamples &Profile = I.second;
- if (!write(FName, Profile))
- return false;
+ const FunctionSamples &Profile = I.second;
+ if (std::error_code EC = write(FName, Profile))
+ return EC;
}
- return true;
+ return sampleprof_error::success;
}
- /// \brief Profile writer factory. Create a new writer based on the value of
- /// \p Format.
+ /// Profile writer factory.
+ ///
+ /// Create a new writer based on the value of \p Format.
static ErrorOr<std::unique_ptr<SampleProfileWriter>>
create(StringRef Filename, SampleProfileFormat Format);
protected:
+ /// \brief Write a file header for the profile file.
+ virtual std::error_code
+ writeHeader(const StringMap<FunctionSamples> &ProfileMap) = 0;
+
/// \brief Output stream where to emit the profile to.
raw_fd_ostream OS;
};
class SampleProfileWriterText : public SampleProfileWriter {
public:
SampleProfileWriterText(StringRef F, std::error_code &EC)
- : SampleProfileWriter(F, EC, sys::fs::F_Text) {}
+ : SampleProfileWriter(F, EC, sys::fs::F_Text), Indent(0) {}
+
+ std::error_code write(StringRef FName, const FunctionSamples &S) override;
- bool write(StringRef FName, const FunctionSamples &S) override;
- bool write(const Module &M, StringMap<FunctionSamples> &P) {
- return SampleProfileWriter::write(M, P);
+protected:
+ std::error_code
+ writeHeader(const StringMap<FunctionSamples> &ProfileMap) override {
+ return sampleprof_error::success;
}
+
+private:
+ /// Indent level to use when writing.
+ ///
+ /// This is used when printing inlined callees.
+ unsigned Indent;
};
/// \brief Sample-based profile writer (binary format).
class SampleProfileWriterBinary : public SampleProfileWriter {
public:
- SampleProfileWriterBinary(StringRef F, std::error_code &EC);
+ SampleProfileWriterBinary(StringRef F, std::error_code &EC)
+ : SampleProfileWriter(F, EC, sys::fs::F_None), NameTable() {}
- bool write(StringRef F, const FunctionSamples &S) override;
- bool write(const Module &M, StringMap<FunctionSamples> &P) {
- return SampleProfileWriter::write(M, P);
- }
+ std::error_code write(StringRef F, const FunctionSamples &S) override;
+
+protected:
+ std::error_code
+ writeHeader(const StringMap<FunctionSamples> &ProfileMap) override;
+ std::error_code writeNameIdx(StringRef FName);
+ std::error_code writeBody(StringRef FName, const FunctionSamples &S);
+
+private:
+ void addName(StringRef FName);
+ void addNames(const FunctionSamples &S);
+
+ MapVector<StringRef, uint32_t> NameTable;
};
} // End namespace sampleprof