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f43849e9c7
This patch introduces the heat coloring of the Call Printer which is based on the relative "hotness" of each function. The patch is a part of sequence of three patches, related to graphs Heat Coloring. Another feature added is the flag similar to "-cfg-dot-filename-prefix", which allows to write the graph into a named .pdf Reviewers: rcorcs, apilipenko, davidxl, sfertile, fedor.sergeev, eraman, bollu Differential Revision: https://reviews.llvm.org/D77172
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
//===-- HeatUtils.h - Utility for printing heat colors ----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Utility for printing heat colors based on profiling information.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_HEATUTILS_H
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#define LLVM_ANALYSIS_HEATUTILS_H
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#include <cstdint>
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#include <string>
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namespace llvm {
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class BlockFrequencyInfo;
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class Function;
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// Returns number of calls of calledFunction by callerFunction.
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uint64_t
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getNumOfCalls(Function &callerFunction, Function &calledFunction);
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// Returns the maximum frequency of a BB in a function.
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uint64_t getMaxFreq(const Function &F, const BlockFrequencyInfo *BFI);
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// Calculates heat color based on current and maximum frequencies.
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std::string getHeatColor(uint64_t freq, uint64_t maxFreq);
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// Calculates heat color based on percent of "hotness".
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std::string getHeatColor(double percent);
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} // namespace llvm
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#endif
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