1 //===- ProfileInfoLoader.h - Load & convert profile information -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // 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;
38 // ProfileInfoLoader ctor - Read the specified profiling data file, exiting
39 // the program if the file is invalid or broken.
40 ProfileInfoLoader(const char *ToolName, const std::string &Filename,
43 unsigned getNumExecutions() const { return CommandLines.size(); }
44 const std::string &getExecution(unsigned i) const { return CommandLines[i]; }
46 // getFunctionCounts - This method is used by consumers of function counting
47 // information. If we do not directly have function count information, we
48 // compute it from other, more refined, types of profile information.
50 void getFunctionCounts(std::vector<std::pair<Function*, unsigned> > &Counts);
52 // hasAccurateBlockCounts - Return true if we can synthesize accurate block
53 // frequency information from whatever we have.
55 bool hasAccurateBlockCounts() const {
56 return !BlockCounts.empty() || !EdgeCounts.empty();
59 // hasAccurateEdgeCounts - Return true if we can synthesize accurate edge
60 // frequency information from whatever we have.
62 bool hasAccurateEdgeCounts() const {
63 return !EdgeCounts.empty();
66 // getBlockCounts - This method is used by consumers of block counting
67 // information. If we do not directly have block count information, we
68 // compute it from other, more refined, types of profile information.
70 void getBlockCounts(std::vector<std::pair<BasicBlock*, unsigned> > &Counts);
72 // getEdgeCounts - This method is used by consumers of edge counting
73 // information. If we do not directly have edge count information, we compute
74 // it from other, more refined, types of profile information.
76 // Edges are represented as a pair, where the first element is the basic block
77 // and the second element is the successor number.
79 typedef std::pair<BasicBlock*, unsigned> Edge;
80 void getEdgeCounts(std::vector<std::pair<Edge, unsigned> > &Counts);
82 // getBBTrace - This method is used by consumers of basic-block trace
85 void getBBTrace(std::vector<BasicBlock *> &Trace);
88 } // End llvm namespace