88   bool canSplit(const BinaryFunction &BF) {  in canSplit()
89     if (!BF.hasValidProfile())  in canSplit()
93     for (const BinaryBasicBlock &BB : BF) {  in canSplit()
123   bool canSplit(const BinaryFunction &BF) { return true; }  in canSplit()
158 bool SplitFunctions::shouldOptimize(const BinaryFunction &BF) const {  in shouldOptimize()
160   if (BF.getKnownExecutionCount() < opts::ExecutionCountThreshold)  in shouldOptimize()
163   return BinaryFunctionPass::shouldOptimize(BF);  in shouldOptimize()
173     WorkFun = [&](BinaryFunction &BF) {  in runOnFunctions()  argument
174       splitFunction(BF, SplitRandom(RandGen));  in runOnFunctions()
177     WorkFun = [&](BinaryFunction &BF) { splitFunction<SplitCold>(BF); };  in runOnFunctions()  argument
179   ParallelUtilities::PredicateTy SkipFunc = [&](const BinaryFunction &BF) {  in runOnFunctions()  argument
180     return !shouldOptimize(BF);  in runOnFunctions()
199 void SplitFunctions::splitFunction(BinaryFunction &BF, SplitStrategy Strategy) {  in splitFunction()  argument
200   if (BF.empty())  in splitFunction()
203   if (!Strategy.canSplit(BF))  in splitFunction()
206   FunctionLayout &Layout = BF.getLayout();  in splitFunction()
210   BinaryContext &BC = BF.getBinaryContext();  in splitFunction()
215     std::tie(OriginalHotSize, ColdSize) = BC.calculateEmittedSize(BF);  in splitFunction()
216     LLVM_DEBUG(dbgs() << "Estimated size for function " << BF  in splitFunction()
241     if (BF.hasEHRanges() && !opts::SplitEH) {  in splitFunction()
267   } else if (BF.hasEHRanges() && !opts::SplitEH) {  in splitFunction()
283   BF.getLayout().update(NewLayout);  in splitFunction()
289   if (!BC.HasFixedLoadAddress && BF.hasEHRanges() && BF.isSplit())  in splitFunction()
290     Trampolines = createEHTrampolines(BF);  in splitFunction()
293   if (BC.isX86() && BF.isSplit()) {  in splitFunction()
294     std::tie(HotSize, ColdSize) = BC.calculateEmittedSize(BF);  in splitFunction()
295     LLVM_DEBUG(dbgs() << "Estimated size for function " << BF  in splitFunction()
300       LLVM_DEBUG(dbgs() << "Reversing splitting of function " << BF << ":\n  0x"  in splitFunction()
308       if (PreSplitLayout.size() != BF.size())  in splitFunction()
309         PreSplitLayout = mergeEHTrampolines(BF, PreSplitLayout, Trampolines);  in splitFunction()
311       for (BinaryBasicBlock &BB : BF)  in splitFunction()
313       BF.getLayout().update(PreSplitLayout);  in splitFunction()
322 SplitFunctions::createEHTrampolines(BinaryFunction &BF) const {  in createEHTrampolines()
323   const auto &MIB = BF.getBinaryContext().MIB;  in createEHTrampolines()
330   std::vector<BinaryBasicBlock *> Blocks(BF.pbegin(), BF.pend());  in createEHTrampolines()
338       BinaryBasicBlock *LPBlock = BF.getBasicBlockForLabel(LPLabel);  in createEHTrampolines()
350         BinaryBasicBlock *TrampolineBB = BF.addBasicBlock();  in createEHTrampolines()
370   BinaryFunction::BasicBlockOrderType NewLayout(BF.getLayout().block_begin(),  in createEHTrampolines()
371                                                 BF.getLayout().block_end());  in createEHTrampolines()
375   BF.getLayout().update(NewLayout);  in createEHTrampolines()
378   BF.fixBranches();  in createEHTrampolines()
381   BF.recomputeLandingPads();  in createEHTrampolines()
387     BinaryFunction &BF, SplitFunctions::BasicBlockOrderType &Layout,  in mergeEHTrampolines()  argument
393       BinaryBasicBlock *LPBlock = BF.getBasicBlockForLabel(Iter->second);  in mergeEHTrampolines()