1 //===- ProfileInfoLoader.h - Load & convert profile information -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // The ProfileInfoLoader class is used to load and represent profiling
11 // information read in from the dump file. If conversions between formats are
12 // needed, it can also do this.
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_ANALYSIS_PROFILEINFOLOADER_H
17 #define LLVM_ANALYSIS_PROFILEINFOLOADER_H
29 class ProfileInfoLoader {
31 std::vector<std::string> CommandLines;
32 std::vector<unsigned> FunctionCounts;
33 std::vector<unsigned> BlockCounts;
34 std::vector<unsigned> EdgeCounts;
35 std::vector<unsigned> BBTrace;
37 // ProfileInfoLoader ctor - Read the specified profiling data file, exiting
38 // the program if the file is invalid or broken.
39 ProfileInfoLoader(const char *ToolName, const std::string &Filename,
42 unsigned getNumExecutions() const { return CommandLines.size(); }
43 const std::string &getExecution(unsigned i) const { return CommandLines[i]; }
45 // getFunctionCounts - This method is used by consumers of function counting
46 // information. If we do not directly have function count information, we
47 // compute it from other, more refined, types of profile information.
49 void getFunctionCounts(std::vector<std::pair<Function*, unsigned> > &Counts);
51 // hasAccurateBlockCounts - Return true if we can synthesize accurate block
52 // frequency information from whatever we have.
54 bool hasAccurateBlockCounts() const {
55 return !BlockCounts.empty() || !EdgeCounts.empty();
58 // hasAccurateEdgeCounts - Return true if we can synthesize accurate edge
59 // frequency information from whatever we have.
61 bool hasAccurateEdgeCounts() const {
62 return !EdgeCounts.empty();
65 // getBlockCounts - This method is used by consumers of block counting
66 // information. If we do not directly have block count information, we
67 // compute it from other, more refined, types of profile information.
69 void getBlockCounts(std::vector<std::pair<BasicBlock*, unsigned> > &Counts);
71 // getEdgeCounts - This method is used by consumers of edge counting
72 // information. If we do not directly have edge count information, we compute
73 // it from other, more refined, types of profile information.
75 // Edges are represented as a pair, where the first element is the basic block
76 // and the second element is the successor number.
78 typedef std::pair<BasicBlock*, unsigned> Edge;
79 void getEdgeCounts(std::vector<std::pair<Edge, unsigned> > &Counts);
81 // getBBTrace - This method is used by consumers of basic-block trace
84 void getBBTrace(std::vector<BasicBlock *> &Trace);
87 } // End llvm namespace