class ConstantHoistingPass

Declaration

class ConstantHoistingPass : public PassInfoMixin { /* full declaration omitted */ };

Description

A CRTP mix-in to automatically provide informational APIs needed for passes. This provides some boilerplate for types that are passes.

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:123

Inherits from: PassInfoMixin

Member Variables

private const llvm::TargetTransformInfo* TTI

private llvm::DominatorTree* DT

private llvm::BlockFrequencyInfo* BFI

private llvm::LLVMContext* Ctx

private const llvm::DataLayout* DL

private llvm::BasicBlock* Entry

private llvm::ProfileSummaryInfo* PSI

private llvm::ConstantHoistingPass::ConstCandVecType ConstIntCandVec

private llvm::ConstantHoistingPass::GVCandVecMapType ConstGEPCandMap

private llvm::ConstantHoistingPass::ConstInfoVecType ConstIntInfoVec

private llvm::ConstantHoistingPass::GVInfoVecMapType ConstGEPInfoMap

private MapVector<llvm::Instruction*, llvm::Instruction*> ClonedCastMap

Keep track of cast instructions we already cloned.

Method Overview

• public void cleanup()
• private void collectConstantCandidates(llvm::ConstantHoistingPass::ConstCandMapType & ConstCandMap, llvm::Instruction * Inst, unsigned int Idx, llvm::ConstantInt * ConstInt)
• private void collectConstantCandidates(llvm::ConstantHoistingPass::ConstCandMapType & ConstCandMap, llvm::Instruction * Inst, unsigned int Idx, llvm::ConstantExpr * ConstExpr)
• private void collectConstantCandidates(llvm::ConstantHoistingPass::ConstCandMapType & ConstCandMap, llvm::Instruction * Inst, unsigned int Idx)
• private void collectConstantCandidates(llvm::ConstantHoistingPass::ConstCandMapType & ConstCandMap, llvm::Instruction * Inst)
• private void collectConstantCandidates(llvm::Function & Fn)
• private void deleteDeadCastInst() const
• private void emitBaseConstants(llvm::Instruction * Base, llvm::Constant * Offset, llvm::Type * Ty, const consthoist::ConstantUser & ConstUser)
• private bool emitBaseConstants(llvm::GlobalVariable * BaseGV)
• private void findAndMakeBaseConstant(ConstCandVecType::iterator S, ConstCandVecType::iterator E, SmallVectorImpl<consthoist::ConstantInfo> & ConstInfoVec)
• private void findBaseConstants(llvm::GlobalVariable * BaseGV)
• private SetVector<llvm::Instruction *> findConstantInsertionPoint(const consthoist::ConstantInfo & ConstInfo) const
• private llvm::Instruction * findMatInsertPt(llvm::Instruction * Inst, unsigned int Idx = ~0U) const
• private unsigned int maximizeConstantsInRange(ConstCandVecType::iterator S, ConstCandVecType::iterator E, ConstCandVecType::iterator & MaxCostItr)
• public llvm::PreservedAnalyses run(llvm::Function & F, llvm::FunctionAnalysisManager & AM)
• public bool runImpl(llvm::Function & F, llvm::TargetTransformInfo & TTI, llvm::DominatorTree & DT, llvm::BlockFrequencyInfo * BFI, llvm::BasicBlock & Entry, llvm::ProfileSummaryInfo * PSI)

Methods

¶void cleanup()

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:132

¶void collectConstantCandidates(
    llvm::ConstantHoistingPass::ConstCandMapType&
        ConstCandMap,
    llvm::Instruction* Inst,
    unsigned int Idx,
    llvm::ConstantInt* ConstInt)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:174

Parameters

llvm::ConstantHoistingPass::ConstCandMapType& ConstCandMap

llvm::Instruction* Inst

unsigned int Idx

llvm::ConstantInt* ConstInt

¶void collectConstantCandidates(
    llvm::ConstantHoistingPass::ConstCandMapType&
        ConstCandMap,
    llvm::Instruction* Inst,
    unsigned int Idx,
    llvm::ConstantExpr* ConstExpr)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:177

Parameters

llvm::ConstantHoistingPass::ConstCandMapType& ConstCandMap

llvm::Instruction* Inst

unsigned int Idx

llvm::ConstantExpr* ConstExpr

¶void collectConstantCandidates(
    llvm::ConstantHoistingPass::ConstCandMapType&
        ConstCandMap,
    llvm::Instruction* Inst,
    unsigned int Idx)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:180

Parameters

llvm::ConstantHoistingPass::ConstCandMapType& ConstCandMap

llvm::Instruction* Inst

unsigned int Idx

¶void collectConstantCandidates(
    llvm::ConstantHoistingPass::ConstCandMapType&
        ConstCandMap,
    llvm::Instruction* Inst)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:182

Parameters

llvm::ConstantHoistingPass::ConstCandMapType& ConstCandMap

llvm::Instruction* Inst

¶void collectConstantCandidates(llvm::Function& Fn)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:184

Parameters

llvm::Function& Fn

¶void deleteDeadCastInst() const

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:199

¶void emitBaseConstants(
    llvm::Instruction* Base,
    llvm::Constant* Offset,
    llvm::Type* Ty,
    const consthoist::ConstantUser& ConstUser)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:194

Parameters

llvm::Instruction* Base

llvm::Constant* Offset

llvm::Type* Ty

const consthoist::ConstantUser& ConstUser

¶bool emitBaseConstants(
    llvm::GlobalVariable* BaseGV)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:198

Parameters

llvm::GlobalVariable* BaseGV

¶void findAndMakeBaseConstant(
    ConstCandVecType::iterator S,
    ConstCandVecType::iterator E,
    SmallVectorImpl<consthoist::ConstantInfo>&
        ConstInfoVec)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:185

Parameters

ConstCandVecType::iterator S

ConstCandVecType::iterator E

SmallVectorImpl<consthoist::ConstantInfo>& ConstInfoVec

¶void findBaseConstants(
    llvm::GlobalVariable* BaseGV)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:193

Parameters

llvm::GlobalVariable* BaseGV

¶SetVector<llvm::Instruction*>
findConstantInsertionPoint(
    const consthoist::ConstantInfo& ConstInfo)
    const

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:173

Parameters

const consthoist::ConstantInfo& ConstInfo

¶llvm::Instruction* findMatInsertPt(
    llvm::Instruction* Inst,
    unsigned int Idx = ~0U) const

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:171

Parameters

llvm::Instruction* Inst

unsigned int Idx = ~0U

¶unsigned int maximizeConstantsInRange(
    ConstCandVecType::iterator S,
    ConstCandVecType::iterator E,
    ConstCandVecType::iterator& MaxCostItr)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:188

Parameters

ConstCandVecType::iterator S

ConstCandVecType::iterator E

ConstCandVecType::iterator& MaxCostItr

¶llvm::PreservedAnalyses run(
    llvm::Function& F,
    llvm::FunctionAnalysisManager& AM)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:125

Parameters

llvm::Function& F

llvm::FunctionAnalysisManager& AM

¶bool runImpl(llvm::Function& F,
             llvm::TargetTransformInfo& TTI,
             llvm::DominatorTree& DT,
             llvm::BlockFrequencyInfo* BFI,
             llvm::BasicBlock& Entry,
             llvm::ProfileSummaryInfo* PSI)

Declared at: llvm/include/llvm/Transforms/Scalar/ConstantHoisting.h:128

Parameters

llvm::Function& F

llvm::TargetTransformInfo& TTI

llvm::DominatorTree& DT

llvm::BlockFrequencyInfo* BFI

llvm::BasicBlock& Entry

llvm::ProfileSummaryInfo* PSI