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