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+//===- ProfileInfoLoader.h - Load & convert profile information -*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file 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