MachineLoopInfo.h Source File (original) (raw)

29#ifndef LLVM_CODEGEN_MACHINELOOPINFO_H

30#define LLVM_CODEGEN_MACHINELOOPINFO_H

40namespace llvm {

48class MachineLoop : public LoopBase<MachineBasicBlock, MachineLoop> {

49public:

89 const Register ExcludeReg = 0) const;

93private:

97 bool isLoopInvariantImplicitPhysReg(Register Reg) const;

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103};

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109class MachineLoopInfo : public LoopInfoBase<MachineBasicBlock, MachineLoop> {

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113public:

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122 MachineFunctionAnalysisManager::Invalidator &);

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133 bool FindMultiLoopPreheader = false) const;

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137};

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164public:

165 static char ID;

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173 void getAnalysisUsage(AnalysisUsage &AU) const override;

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176};

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197}

198

199#endif

#define LLVM_TEMPLATE_ABI

This file provides various utilities for inspecting and working with the control flow graph in LLVM I...

Represent the analysis usage information of a pass.

Instances of this class are used to represent loops that are detected in the flow graph.

This class builds and contains all of the top-level loop structures in the specified function.

typename std::vector< MachineLoop * >::const_iterator iterator

DominatorTree Class - Concrete subclass of DominatorTreeBase that is used to compute a normal dominat...

MachineFunctionPass(char &ID)

Representation of each machine instruction.

Analysis pass that exposes the MachineLoopInfo for a machine function.

Definition MachineLoopInfo.h:140

MachineLoopInfo Result

Definition MachineLoopInfo.h:145

LLVM_ABI Result run(MachineFunction &MF, MachineFunctionAnalysisManager &MFAM)

static char ID

Definition MachineLoopInfo.h:165

bool runOnMachineFunction(MachineFunction &F) override

runOnMachineFunction - This method must be overloaded to perform the desired machine code transformat...

void releaseMemory() override

releaseMemory() - This member can be implemented by a pass if it wants to be able to release its memo...

Definition MachineLoopInfo.h:171

MachineLoopInfoWrapperPass()

MachineLoopInfo & getLI()

Definition MachineLoopInfo.h:175

Definition MachineLoopInfo.h:109

MachineLoopInfo(MachineLoopInfo &&)=default

LLVM_ABI void calculate(MachineDominatorTree &MDT)

Calculate the natural loop information.

MachineLoopInfo()=default

LLVM_ABI bool invalidate(MachineFunction &, const PreservedAnalyses &PA, MachineFunctionAnalysisManager::Invalidator &)

Handle invalidation explicitly.

LLVM_ABI MachineBasicBlock * findLoopPreheader(MachineLoop *L, bool SpeculativePreheader=false, bool FindMultiLoopPreheader=false) const

Find the block that either is the loop preheader, or could speculatively be used as the preheader.

MachineLoopInfo(const MachineLoopInfo &)=delete

friend class MachineLoopInfoWrapperPass

Definition MachineLoopInfo.h:111

MachineLoopInfo & operator=(const MachineLoopInfo &)=delete

MachineLoopInfo(MachineDominatorTree &MDT)

Definition MachineLoopInfo.h:115

MachineLoopPrinterPass(raw_ostream &OS)

Definition MachineLoopInfo.h:155

static bool isRequired()

Definition MachineLoopInfo.h:158

Definition MachineLoopInfo.h:48

LLVM_ABI MachineBasicBlock * findLoopControlBlock() const

Find the block that contains the loop control variable and the loop test.

LLVM_ABI MDNode * getLoopID() const

Find the llvm.loop metadata for this loop.

LLVM_ABI DebugLoc getStartLoc() const

Return the debug location of the start of this loop.

LLVM_ABI MachineBasicBlock * getBottomBlock()

Return the "bottom" block in the loop, which is the last block in the linear layout,...

LLVM_ABI bool isLoopInvariant(MachineInstr &I, const Register ExcludeReg=0) const

Returns true if the instruction is loop invariant.

LLVM_ABI MachineBasicBlock * getTopBlock()

Return the "top" block in the loop, which is the first block in the linear layout,...

A set of analyses that are preserved following a run of a transformation pass.

Wrapper class representing virtual and physical registers.

This class implements an extremely fast bulk output stream that can only output to a stream.

This is an optimization pass for GlobalISel generic memory operations.

void dump(const SparseBitVector< ElementSize > &LHS, raw_ostream &out)

AnalysisManager< MachineFunction > MachineFunctionAnalysisManager

A CRTP mix-in that provides informational APIs needed for analysis passes.

A special type used by analysis passes to provide an address that identifies that particular analysis...

MachineLoopInfo::iterator ChildIteratorType

Definition MachineLoopInfo.h:190

static ChildIteratorType child_end(NodeRef N)

Definition MachineLoopInfo.h:194

static NodeRef getEntryNode(MachineLoop *L)

Definition MachineLoopInfo.h:192

static ChildIteratorType child_begin(NodeRef N)

Definition MachineLoopInfo.h:193

MachineLoop * NodeRef

Definition MachineLoopInfo.h:189

MachineLoopInfo::iterator ChildIteratorType

Definition MachineLoopInfo.h:181

static ChildIteratorType child_begin(NodeRef N)

Definition MachineLoopInfo.h:184

const MachineLoop * NodeRef

Definition MachineLoopInfo.h:180

static NodeRef getEntryNode(const MachineLoop *L)

Definition MachineLoopInfo.h:183

static ChildIteratorType child_end(NodeRef N)

Definition MachineLoopInfo.h:185

A CRTP mix-in to automatically provide informational APIs needed for passes.