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llvm::MachinePipeliner Class Reference

The main class in the implementation of the target independent software pipeliner pass. More...

#include "llvm/CodeGen/MachinePipeliner.h"

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Classes

struct  LoopInfo
 Cache the target analysis information about the loop. More...
 

Public Member Functions

 MachinePipeliner ()
 
bool runOnMachineFunction (MachineFunction &MF) override
 The "main" function for implementing Swing Modulo Scheduling. More...
 
void getAnalysisUsage (AnalysisUsage &AU) const override
 getAnalysisUsage - Subclasses that override getAnalysisUsage must call this. More...
 
- Public Member Functions inherited from llvm::MachineFunctionPass
bool doInitialization (Module &) override
 doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run. More...
 
- Public Member Functions inherited from llvm::FunctionPass
 FunctionPass (char &pid)
 
PasscreatePrinterPass (raw_ostream &OS, const std::string &Banner) const override
 createPrinterPass - Get a function printer pass. More...
 
void assignPassManager (PMStack &PMS, PassManagerType T) override
 Find appropriate Function Pass Manager or Call Graph Pass Manager in the PM Stack and add self into that manager. More...
 
PassManagerType getPotentialPassManagerType () const override
 Return what kind of Pass Manager can manage this pass. More...
 
- Public Member Functions inherited from llvm::Pass
 Pass (PassKind K, char &pid)
 
 Pass (const Pass &)=delete
 
Passoperator= (const Pass &)=delete
 
virtual ~Pass ()
 
PassKind getPassKind () const
 
virtual StringRef getPassName () const
 getPassName - Return a nice clean name for a pass. More...
 
AnalysisID getPassID () const
 getPassID - Return the PassID number that corresponds to this pass. More...
 
virtual bool doFinalization (Module &)
 doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. More...
 
virtual void print (raw_ostream &OS, const Module *M) const
 print - Print out the internal state of the pass. More...
 
void dump () const
 
virtual void preparePassManager (PMStack &)
 Check if available pass managers are suitable for this pass or not. More...
 
void setResolver (AnalysisResolver *AR)
 
AnalysisResolvergetResolver () const
 
virtual void releaseMemory ()
 releaseMemory() - This member can be implemented by a pass if it wants to be able to release its memory when it is no longer needed. More...
 
virtual void * getAdjustedAnalysisPointer (AnalysisID ID)
 getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. More...
 
virtual ImmutablePassgetAsImmutablePass ()
 
virtual PMDataManagergetAsPMDataManager ()
 
virtual void verifyAnalysis () const
 verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information. More...
 
virtual void dumpPassStructure (unsigned Offset=0)
 
template<typename AnalysisType >
AnalysisType * getAnalysisIfAvailable () const
 getAnalysisIfAvailable<AnalysisType>() - Subclasses use this function to get analysis information that might be around, for example to update it. More...
 
bool mustPreserveAnalysisID (char &AID) const
 mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. More...
 
template<typename AnalysisType >
AnalysisType & getAnalysis () const
 getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More...
 
template<typename AnalysisType >
AnalysisType & getAnalysis (Function &F)
 getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More...
 
template<typename AnalysisType >
AnalysisType & getAnalysisID (AnalysisID PI) const
 
template<typename AnalysisType >
AnalysisType & getAnalysisID (AnalysisID PI, Function &F)
 

Public Attributes

MachineFunctionMF = nullptr
 
const MachineLoopInfoMLI = nullptr
 
const MachineDominatorTreeMDT = nullptr
 
const InstrItineraryDataInstrItins
 
const TargetInstrInfoTII = nullptr
 
RegisterClassInfo RegClassInfo
 
bool disabledByPragma = false
 
unsigned II_setByPragma = 0
 
LoopInfo LI
 

Static Public Attributes

static int NumTries = 0
 
static char ID = 0
 

Additional Inherited Members

- Static Public Member Functions inherited from llvm::Pass
static const PassInfolookupPassInfo (const void *TI)
 
static const PassInfolookupPassInfo (StringRef Arg)
 
static PasscreatePass (AnalysisID ID)
 
- Protected Member Functions inherited from llvm::MachineFunctionPass
 MachineFunctionPass (char &ID)
 
virtual MachineFunctionProperties getRequiredProperties () const
 
virtual MachineFunctionProperties getSetProperties () const
 
virtual MachineFunctionProperties getClearedProperties () const
 
- Protected Member Functions inherited from llvm::FunctionPass
bool skipFunction (const Function &F) const
 Optional passes call this function to check whether the pass should be skipped. More...
 

Detailed Description

The main class in the implementation of the target independent software pipeliner pass.

Definition at line 57 of file MachinePipeliner.h.

Constructor & Destructor Documentation

◆ MachinePipeliner()

llvm::MachinePipeliner::MachinePipeliner ( )
inline

Member Function Documentation

◆ getAnalysisUsage()

void llvm::MachinePipeliner::getAnalysisUsage ( AnalysisUsage AU) const
inlineoverridevirtual

getAnalysisUsage - Subclasses that override getAnalysisUsage must call this.

For MachineFunctionPasses, calling AU.preservesCFG() indicates that the pass does not modify the MachineBasicBlock CFG.

Reimplemented from llvm::MachineFunctionPass.

Definition at line 90 of file MachinePipeliner.h.

References llvm::AnalysisUsage::addPreserved(), llvm::AnalysisUsage::addRequired(), B, and llvm::MachineFunctionPass::getAnalysisUsage().

◆ runOnMachineFunction()

Modulo Software false bool MachinePipeliner::runOnMachineFunction ( MachineFunction MF)
overridevirtual

The "main" function for implementing Swing Modulo Scheduling.

Implements llvm::MachineFunctionPass.

Definition at line 170 of file MachinePipeliner.cpp.

References llvm::TargetInstrInfo::analyzeBranch(), llvm::TargetInstrInfo::analyzeLoop(), assert(), B, llvm::MachineBasicBlock::begin(), llvm::MachinePipeliner::LoopInfo::BrCond, llvm::BuildMI(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::dbgs(), disabledByPragma, llvm::dyn_cast(), E, EnableSWP, EnableSWPOptSize, llvm::MachinePipeliner::LoopInfo::FBB, llvm::MachineBasicBlock::findDebugLoc(), llvm::AttributeList::FunctionIndex, llvm::MCInstrInfo::get(), llvm::MachineBasicBlock::getBasicBlock(), llvm::LoopBase< BlockT, LoopT >::getBlocks(), llvm::MachineBasicBlock::getFirstNonPHI(), llvm::MachineBasicBlock::getFirstTerminator(), llvm::LoopBase< BlockT, LoopT >::getHeader(), llvm::LoopBase< BlockT, LoopT >::getLoopPreheader(), llvm::Instruction::getMetadata(), llvm::LoopBase< BlockT, LoopT >::getNumBlocks(), llvm::MDNode::getNumOperands(), llvm::MDNode::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getRegClass(), llvm::MachineFunction::getRegInfo(), llvm::getRegState(), llvm::MDString::getString(), llvm::MachineOperand::getSubReg(), llvm::BasicBlock::getTerminator(), llvm::MachineLoop::getTopBlock(), I, II_setByPragma, llvm::SlotIndexes::insertMachineInstrInMaps(), llvm::MachineBasicBlock::instr_end(), LI, LLVM_DEBUG, llvm::MachinePipeliner::LoopInfo::LoopCompare, llvm::MachinePipeliner::LoopInfo::LoopInductionVar, llvm::make_range(), llvm::max(), llvm::LLVMContext::MD_loop, MF, MRI, NumTries, RegClassInfo, llvm::MachineOperand::setReg(), llvm::MachineOperand::setSubReg(), llvm::MachineBasicBlock::size(), llvm::size(), SwpLoopLimit, llvm::MachinePipeliner::LoopInfo::TBB, TII, and TII.

Referenced by MachinePipeliner().

Member Data Documentation

◆ disabledByPragma

bool llvm::MachinePipeliner::disabledByPragma = false

Definition at line 65 of file MachinePipeliner.h.

Referenced by runOnMachineFunction().

◆ ID

char MachinePipeliner::ID = 0
static

Definition at line 82 of file MachinePipeliner.h.

◆ II_setByPragma

unsigned llvm::MachinePipeliner::II_setByPragma = 0

Definition at line 66 of file MachinePipeliner.h.

Referenced by runOnMachineFunction().

◆ InstrItins

const InstrItineraryData* llvm::MachinePipeliner::InstrItins

Definition at line 62 of file MachinePipeliner.h.

Referenced by getUnderlyingObjects().

◆ LI

LoopInfo llvm::MachinePipeliner::LI

Definition at line 80 of file MachinePipeliner.h.

Referenced by runOnMachineFunction().

◆ MDT

const MachineDominatorTree* llvm::MachinePipeliner::MDT = nullptr

Definition at line 61 of file MachinePipeliner.h.

◆ MF

MachineFunction* llvm::MachinePipeliner::MF = nullptr

◆ MLI

const MachineLoopInfo* llvm::MachinePipeliner::MLI = nullptr

Definition at line 60 of file MachinePipeliner.h.

Referenced by isIntersect().

◆ NumTries

int MachinePipeliner::NumTries = 0
static

Definition at line 69 of file MachinePipeliner.h.

Referenced by runOnMachineFunction().

◆ RegClassInfo

RegisterClassInfo llvm::MachinePipeliner::RegClassInfo

Definition at line 64 of file MachinePipeliner.h.

Referenced by computeLiveOuts(), and runOnMachineFunction().

◆ TII

const TargetInstrInfo* llvm::MachinePipeliner::TII = nullptr

The documentation for this class was generated from the following files: