llvm/llvm/lib/Analysis/HeatUtils.cpp

//===-- HeatUtils.cpp - Utility for printing heat colors --------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Utility for printing heat colors based on heuristics or profiling
// information.
//
//===----------------------------------------------------------------------===//

#include "llvm/Analysis/HeatUtils.h"
#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/IR/Instructions.h"

#include <cmath>

namespace llvm {

static const unsigned heatSize = …;
static const char heatPalette[heatSize][8] = …;

uint64_t
getNumOfCalls(Function &callerFunction, Function &calledFunction) { … }

uint64_t getMaxFreq(const Function &F, const BlockFrequencyInfo *BFI) { … }

std::string getHeatColor(uint64_t freq, uint64_t maxFreq) { … }

std::string getHeatColor(double percent) { … }

} // namespace llvm