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Diffstat (limited to 'include/llvm/Analysis/ProfileInfoLoader.h')
-rw-r--r-- | include/llvm/Analysis/ProfileInfoLoader.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/include/llvm/Analysis/ProfileInfoLoader.h b/include/llvm/Analysis/ProfileInfoLoader.h new file mode 100644 index 0000000000000..8a5141ab23525 --- /dev/null +++ b/include/llvm/Analysis/ProfileInfoLoader.h @@ -0,0 +1,89 @@ +//===- 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 |