struct ValueLatticeElement::MergeOptions

Declaration

struct ValueLatticeElement::MergeOptions { /* full declaration omitted */ };

Description

Struct to control some aspects related to merging constant ranges.

Declared at: llvm/include/llvm/Analysis/ValueLattice.h:111

Member Variables

public bool MayIncludeUndef

The merge value may include undef.

public bool CheckWiden

Handle repeatedly extending a range by going to overdefined after a number of steps.

public unsigned int MaxWidenSteps

The number of allowed widening steps (including setting the range initially).

Method Overview

• public MergeOptions()
• public MergeOptions(bool MayIncludeUndef, bool CheckWiden, unsigned int MaxWidenSteps = 1)
• public llvm::ValueLatticeElement::MergeOptions & setCheckWiden(bool V = true)
• public llvm::ValueLatticeElement::MergeOptions & setMaxWidenSteps(unsigned int Steps = 1)
• public llvm::ValueLatticeElement::MergeOptions & setMayIncludeUndef(bool V = true)

Methods

¶MergeOptions()

Declared at: llvm/include/llvm/Analysis/ValueLattice.h:123

¶MergeOptions(bool MayIncludeUndef,
             bool CheckWiden,
             unsigned int MaxWidenSteps = 1)

Declared at: llvm/include/llvm/Analysis/ValueLattice.h:125

Parameters

bool MayIncludeUndef

bool CheckWiden

unsigned int MaxWidenSteps = 1

¶llvm::ValueLatticeElement::MergeOptions&
setCheckWiden(bool V = true)

Declared at: llvm/include/llvm/Analysis/ValueLattice.h:135

Parameters

bool V = true

¶llvm::ValueLatticeElement::MergeOptions&
setMaxWidenSteps(unsigned int Steps = 1)

Declared at: llvm/include/llvm/Analysis/ValueLattice.h:140

Parameters

unsigned int Steps = 1

¶llvm::ValueLatticeElement::MergeOptions&
setMayIncludeUndef(bool V = true)

Declared at: llvm/include/llvm/Analysis/ValueLattice.h:130

Parameters

bool V = true