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//===- ProfileInfoLoader.h - Load & convert profile information -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// The ProfileInfoLoader class is used to load and represent profiling
// information read in from the dump file. If conversions between formats are
// needed, it can also do this.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_PROFILEINFOLOADER_H
#define LLVM_ANALYSIS_PROFILEINFOLOADER_H
#include <vector>
#include <string>
#include <utility>
namespace llvm {
class Module;
class Function;
class BasicBlock;
class ProfileInfoLoader {
Module &M;
std::vector<std::string> CommandLines;
std::vector<unsigned> FunctionCounts;
std::vector<unsigned> BlockCounts;
std::vector<unsigned> EdgeCounts;
std::vector<unsigned> BBTrace;
public:
// ProfileInfoLoader ctor - Read the specified profiling data file, exiting
// the program if the file is invalid or broken.
ProfileInfoLoader(const char *ToolName, const std::string &Filename,
Module &M);
unsigned getNumExecutions() const { return CommandLines.size(); }
const std::string &getExecution(unsigned i) const { return CommandLines[i]; }
// getFunctionCounts - This method is used by consumers of function counting
// information. If we do not directly have function count information, we
// compute it from other, more refined, types of profile information.
//
void getFunctionCounts(std::vector<std::pair<Function*, unsigned> > &Counts);
// hasAccurateBlockCounts - Return true if we can synthesize accurate block
// frequency information from whatever we have.
//
bool hasAccurateBlockCounts() const {
return !BlockCounts.empty() || !EdgeCounts.empty();
}
// hasAccurateEdgeCounts - Return true if we can synthesize accurate edge
// frequency information from whatever we have.
//
bool hasAccurateEdgeCounts() const {
return !EdgeCounts.empty();
}
// getBlockCounts - This method is used by consumers of block counting
// information. If we do not directly have block count information, we
// compute it from other, more refined, types of profile information.
//
void getBlockCounts(std::vector<std::pair<BasicBlock*, unsigned> > &Counts);
// getEdgeCounts - This method is used by consumers of edge counting
// information. If we do not directly have edge count information, we compute
// it from other, more refined, types of profile information.
//
// Edges are represented as a pair, where the first element is the basic block
// and the second element is the successor number.
//
typedef std::pair<BasicBlock*, unsigned> Edge;
void getEdgeCounts(std::vector<std::pair<Edge, unsigned> > &Counts);
// getBBTrace - This method is used by consumers of basic-block trace
// information.
//
void getBBTrace(std::vector<BasicBlock *> &Trace);
};
} // End llvm namespace
#endif
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