Differential D64183 Diff 219578 llvm/lib/CodeGen/MachineOutliner.cpp

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llvm/lib/CodeGen/MachineOutliner.cpp

Show First 20 Lines • Show All 840 Lines • ▼ Show 20 Lines	struct MachineOutliner : public ModulePass {
/// considered safe for outlining.		/// considered safe for outlining.
/// Set to true by default for compatibility with llc's -run-pass option.		/// Set to true by default for compatibility with llc's -run-pass option.
/// Set when the pass is constructed in TargetPassConfig.		/// Set when the pass is constructed in TargetPassConfig.
bool RunOnAllFunctions = true;		bool RunOnAllFunctions = true;

StringRef getPassName() const override { return "Machine Outliner"; }		StringRef getPassName() const override { return "Machine Outliner"; }

void getAnalysisUsage(AnalysisUsage &AU) const override {		void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.addRequired<MachineModuleInfo>();		AU.addRequired<MachineModuleInfoWrapperPass>();
AU.addPreserved<MachineModuleInfo>();		AU.addPreserved<MachineModuleInfoWrapperPass>();
AU.setPreservesAll();		AU.setPreservesAll();
ModulePass::getAnalysisUsage(AU);		ModulePass::getAnalysisUsage(AU);
}		}

MachineOutliner() : ModulePass(ID) {		MachineOutliner() : ModulePass(ID) {
initializeMachineOutlinerPass(*PassRegistry::getPassRegistry());		initializeMachineOutlinerPass(*PassRegistry::getPassRegistry());
}		}

▲ Show 20 Lines • Show All 264 Lines • ▼ Show 20 Lines	MachineOutliner::createOutlinedFunction(Module &M, OutlinedFunction &OF,
const Function &ParentFn = FirstCand.getMF()->getFunction();		const Function &ParentFn = FirstCand.getMF()->getFunction();
if (ParentFn.hasFnAttribute("target-features"))		if (ParentFn.hasFnAttribute("target-features"))
F->addFnAttr(ParentFn.getFnAttribute("target-features"));		F->addFnAttr(ParentFn.getFnAttribute("target-features"));

BasicBlock *EntryBB = BasicBlock::Create(C, "entry", F);		BasicBlock *EntryBB = BasicBlock::Create(C, "entry", F);
IRBuilder<> Builder(EntryBB);		IRBuilder<> Builder(EntryBB);
Builder.CreateRetVoid();		Builder.CreateRetVoid();

MachineModuleInfo &MMI = getAnalysis<MachineModuleInfo>();		MachineModuleInfo &MMI = getAnalysis<MachineModuleInfoWrapperPass>().getMMI();
MachineFunction &MF = MMI.getOrCreateMachineFunction(*F);		MachineFunction &MF = MMI.getOrCreateMachineFunction(*F);
MachineBasicBlock &MBB = *MF.CreateMachineBasicBlock();		MachineBasicBlock &MBB = *MF.CreateMachineBasicBlock();
const TargetSubtargetInfo &STI = MF.getSubtarget();		const TargetSubtargetInfo &STI = MF.getSubtarget();
const TargetInstrInfo &TII = *STI.getInstrInfo();		const TargetInstrInfo &TII = *STI.getInstrInfo();

// Insert the new function into the module.		// Insert the new function into the module.
MF.insert(MF.begin(), &MBB);		MF.insert(MF.begin(), &MBB);

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}		}

bool MachineOutliner::runOnModule(Module &M) {		bool MachineOutliner::runOnModule(Module &M) {
// Check if there's anything in the module. If it's empty, then there's		// Check if there's anything in the module. If it's empty, then there's
// nothing to outline.		// nothing to outline.
if (M.empty())		if (M.empty())
return false;		return false;

MachineModuleInfo &MMI = getAnalysis<MachineModuleInfo>();		MachineModuleInfo &MMI = getAnalysis<MachineModuleInfoWrapperPass>().getMMI();

// If the user passed -enable-machine-outliner=always or		// If the user passed -enable-machine-outliner=always or
// -enable-machine-outliner, the pass will run on all functions in the module.		// -enable-machine-outliner, the pass will run on all functions in the module.
// Otherwise, if the target supports default outlining, it will run on all		// Otherwise, if the target supports default outlining, it will run on all
// functions deemed by the target to be worth outlining from by default. Tell		// functions deemed by the target to be worth outlining from by default. Tell
// the user how the outliner is running.		// the user how the outliner is running.
LLVM_DEBUG(		LLVM_DEBUG(
dbgs() << "Machine Outliner: Running on ";		dbgs() << "Machine Outliner: Running on ";
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