1 //===- MachineBlockFrequencyInfo.cpp - MBB Frequency Analysis -------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
30 #define DEBUG_TYPE "machine-block-freq"
34     "view-machine-block-freq-propagation-dags", cl::Hidden,
40                           "fractional block frequency representation."),
43                           "integer fractional block frequency representation."),
49     "view-block-layout-with-bfi", cl::Hidden,
56                           "fractional block frequency representation."),
59                           "integer fractional block frequency representation."),
65 // Defined in Analysis/BlockFrequencyInfo.cpp:  -view-bfi-func-name=
69 // Defined in Analysis/BlockFrequencyInfo.cpp:  -view-hot-freq-perc=
73     "print-machine-bfi", cl::init(false), cl::Hidden,
96     return &G->getFunction()->front();  in getEntryNode()
99   static ChildIteratorType child_begin(const NodeRef N) {  in child_begin()
100     return N->succ_begin();  in child_begin()
103   static ChildIteratorType child_end(const NodeRef N) { return N->succ_end(); }  in child_end()
106     return nodes_iterator(G->getFunction()->begin());  in nodes_begin()
110     return nodes_iterator(G->getFunction()->end());  in nodes_end()
129     int layout_order = -1;  in getNodeLabel()
132       const MachineFunction *F = Node->getParent();  in getNodeLabel()
139         for (auto MBI = F->begin(); MBI != F->end(); ++MBI, ++O) {  in getNodeLabel()
158         Node, EI, MBFI, MBFI->getMBPI(), ViewHotFreqPercent);  in getEdgeAttributes()
179      << '\n';  in run()
236   MBFI->calculate(F, MBPI, MLI);  in calculate()
243     MBFI->print(dbgs());  in calculate()
256 void MachineBlockFrequencyInfo::print(raw_ostream &OS) { MBFI->print(OS); }  in print()
269   return MBFI ? MBFI->getBlockFreq(MBB) : BlockFrequency(0);  in getBlockFreq()
277   const Function &F = MBFI->getFunction()->getFunction();  in getBlockProfileCount()
278   return MBFI->getBlockProfileCount(F, MBB);  in getBlockProfileCount()
286   const Function &F = MBFI->getFunction()->getFunction();  in getProfileCountFromFreq()
287   return MBFI->getProfileCountFromFreq(F, Freq);  in getProfileCountFromFreq()
293   return MBFI->isIrrLoopHeader(MBB);  in isIrrLoopHeader()
301   auto NewSuccFreq = MBFI->getBlockFreq(&NewPredecessor) *  in onEdgeSplit()
304   MBFI->setBlockFreq(&NewSuccessor, NewSuccFreq);  in onEdgeSplit()
308   return MBFI ? MBFI->getFunction() : nullptr;  in getFunction()
312   return MBFI ? &MBFI->getBPI() : nullptr;  in getMBPI()
316   return MBFI ? MBFI->getEntryFreq() : BlockFrequency(0);  in getEntryFreq()