struct SimplifyCFGOptions

Declaration

struct SimplifyCFGOptions { /* full declaration omitted */ };

Description

A set of parameters used to control the transforms in the SimplifyCFG pass. Options may change depending on the position in the optimization pipeline. For example, canonical form that includes switches and branches may later be replaced by lookup tables and selects.

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:63

Member Variables

public int BonusInstThreshold

public bool ForwardSwitchCondToPhi

public bool ConvertSwitchToLookupTable

public bool NeedCanonicalLoop

public bool SinkCommonInsts

public llvm::AssumptionCache* AC

Method Overview

• public SimplifyCFGOptions(unsigned int BonusThreshold = 1, bool ForwardSwitchCond = false, bool SwitchToLookup = false, bool CanonicalLoops = true, bool SinkCommon = false, llvm::AssumptionCache * AssumpCache = nullptr)
• public llvm::SimplifyCFGOptions & bonusInstThreshold(int I)
• public llvm::SimplifyCFGOptions & convertSwitchToLookupTable(bool B)
• public llvm::SimplifyCFGOptions & forwardSwitchCondToPhi(bool B)
• public llvm::SimplifyCFGOptions & needCanonicalLoops(bool B)
• public llvm::SimplifyCFGOptions & setAssumptionCache(llvm::AssumptionCache * Cache)
• public llvm::SimplifyCFGOptions & sinkCommonInsts(bool B)

Methods

¶SimplifyCFGOptions(
    unsigned int BonusThreshold = 1,
    bool ForwardSwitchCond = false,
    bool SwitchToLookup = false,
    bool CanonicalLoops = true,
    bool SinkCommon = false,
    llvm::AssumptionCache* AssumpCache = nullptr)

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:71

Parameters

unsigned int BonusThreshold = 1

bool ForwardSwitchCond = false

bool SwitchToLookup = false

bool CanonicalLoops = true

bool SinkCommon = false

llvm::AssumptionCache* AssumpCache = nullptr

¶llvm::SimplifyCFGOptions& bonusInstThreshold(
    int I)

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:84

Parameters

int I

¶llvm::SimplifyCFGOptions&
convertSwitchToLookupTable(bool B)

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:92

Parameters

bool B

¶llvm::SimplifyCFGOptions& forwardSwitchCondToPhi(
    bool B)

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:88

Parameters

bool B

¶llvm::SimplifyCFGOptions& needCanonicalLoops(
    bool B)

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:96

Parameters

bool B

¶llvm::SimplifyCFGOptions& setAssumptionCache(
    llvm::AssumptionCache* Cache)

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:104

Parameters

llvm::AssumptionCache* Cache

¶llvm::SimplifyCFGOptions& sinkCommonInsts(bool B)

Declared at: llvm/include/llvm/Transforms/Utils/Local.h:100

Parameters

bool B