mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 02:33:06 +01:00
79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
//===-- HeatUtils.cpp - Utility for printing heat colors --------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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"
|
|
|
|
namespace llvm {
|
|
|
|
static const unsigned heatSize = 100;
|
|
static const char heatPalette[heatSize][8] = {
|
|
"#3d50c3", "#4055c8", "#4358cb", "#465ecf", "#4961d2", "#4c66d6", "#4f69d9",
|
|
"#536edd", "#5572df", "#5977e3", "#5b7ae5", "#5f7fe8", "#6282ea", "#6687ed",
|
|
"#6a8bef", "#6c8ff1", "#7093f3", "#7396f5", "#779af7", "#7a9df8", "#7ea1fa",
|
|
"#81a4fb", "#85a8fc", "#88abfd", "#8caffe", "#8fb1fe", "#93b5fe", "#96b7ff",
|
|
"#9abbff", "#9ebeff", "#a1c0ff", "#a5c3fe", "#a7c5fe", "#abc8fd", "#aec9fc",
|
|
"#b2ccfb", "#b5cdfa", "#b9d0f9", "#bbd1f8", "#bfd3f6", "#c1d4f4", "#c5d6f2",
|
|
"#c7d7f0", "#cbd8ee", "#cedaeb", "#d1dae9", "#d4dbe6", "#d6dce4", "#d9dce1",
|
|
"#dbdcde", "#dedcdb", "#e0dbd8", "#e3d9d3", "#e5d8d1", "#e8d6cc", "#ead5c9",
|
|
"#ecd3c5", "#eed0c0", "#efcebd", "#f1ccb8", "#f2cab5", "#f3c7b1", "#f4c5ad",
|
|
"#f5c1a9", "#f6bfa6", "#f7bca1", "#f7b99e", "#f7b599", "#f7b396", "#f7af91",
|
|
"#f7ac8e", "#f7a889", "#f6a385", "#f5a081", "#f59c7d", "#f4987a", "#f39475",
|
|
"#f29072", "#f08b6e", "#ef886b", "#ed8366", "#ec7f63", "#e97a5f", "#e8765c",
|
|
"#e57058", "#e36c55", "#e16751", "#de614d", "#dc5d4a", "#d85646", "#d65244",
|
|
"#d24b40", "#d0473d", "#cc403a", "#ca3b37", "#c53334", "#c32e31", "#be242e",
|
|
"#bb1b2c", "#b70d28"};
|
|
|
|
uint64_t
|
|
getNumOfCalls(Function &callerFunction, Function &calledFunction) {
|
|
uint64_t counter = 0;
|
|
for (User *U : calledFunction.users()) {
|
|
if (auto CI = dyn_cast<CallInst>(U)) {
|
|
if (CI->getCaller() == (&callerFunction)) {
|
|
counter += 1;
|
|
}
|
|
}
|
|
}
|
|
return counter;
|
|
}
|
|
|
|
uint64_t getMaxFreq(const Function &F, const BlockFrequencyInfo *BFI) {
|
|
uint64_t maxFreq = 0;
|
|
for (const BasicBlock &BB : F) {
|
|
uint64_t freqVal = BFI->getBlockFreq(&BB).getFrequency();
|
|
if (freqVal >= maxFreq)
|
|
maxFreq = freqVal;
|
|
}
|
|
return maxFreq;
|
|
}
|
|
|
|
std::string getHeatColor(uint64_t freq, uint64_t maxFreq) {
|
|
if (freq > maxFreq)
|
|
freq = maxFreq;
|
|
double percent = (freq > 0) ? log2(double(freq)) / log2(maxFreq) : 0;
|
|
return getHeatColor(percent);
|
|
}
|
|
|
|
std::string getHeatColor(double percent) {
|
|
if (percent > 1.0)
|
|
percent = 1.0;
|
|
if (percent < 0.0)
|
|
percent = 0.0;
|
|
unsigned colorId = unsigned(round(percent * (heatSize - 1.0)));
|
|
return heatPalette[colorId];
|
|
}
|
|
|
|
} // namespace llvm
|