class DbgValueHistoryMap

Declaration

class DbgValueHistoryMap { /* full declaration omitted */ };

Description

For each user variable, keep a list of instruction ranges where this variable is accessible. The variables are listed in order of appearance.

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:46

Member Variables

private llvm::DbgValueHistoryMap::EntriesMap VarEntries

public static const llvm::DbgValueHistoryMap::EntryIndex NoEntry = std::numeric_limits<unsigned long>::max()

Special value to indicate that an entry is valid until the end of the function.

Method Overview

• public EntriesMap::const_iterator begin() const
• public void clear()
• public void dump() const
• public bool empty() const
• public EntriesMap::const_iterator end() const
• public llvm::DbgValueHistoryMap::Entry & getEntry(llvm::DbgValueHistoryMap::InlinedEntity Var, llvm::DbgValueHistoryMap::EntryIndex Index)
• public bool hasNonEmptyLocation(const llvm::DbgValueHistoryMap::Entries & Entries) const
• public llvm::DbgValueHistoryMap::EntryIndex startClobber(llvm::DbgValueHistoryMap::InlinedEntity Var, const llvm::MachineInstr & MI)
• public bool startDbgValue(llvm::DbgValueHistoryMap::InlinedEntity Var, const llvm::MachineInstr & MI, llvm::DbgValueHistoryMap::EntryIndex & NewIndex)
• public void trimLocationRanges(const llvm::MachineFunction & MF, llvm::LexicalScopes & LScopes, const llvm::InstructionOrdering & Ordering)

Methods

¶EntriesMap::const_iterator begin() const

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:121

¶void clear()

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:120

¶void dump() const

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:125

¶bool empty() const

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:119

¶EntriesMap::const_iterator end() const

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:122

¶llvm::DbgValueHistoryMap::Entry& getEntry(
    llvm::DbgValueHistoryMap::InlinedEntity Var,
    llvm::DbgValueHistoryMap::EntryIndex Index)

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:107

Parameters

llvm::DbgValueHistoryMap::InlinedEntity Var

llvm::DbgValueHistoryMap::EntryIndex Index

¶bool hasNonEmptyLocation(
    const llvm::DbgValueHistoryMap::Entries&
        Entries) const

Description

Test whether a vector of entries features any non-empty locations. It could have no entries, or only DBG_VALUE $noreg entries.

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:114

Parameters

const llvm::DbgValueHistoryMap::Entries& Entries

¶llvm::DbgValueHistoryMap::EntryIndex startClobber(
    llvm::DbgValueHistoryMap::InlinedEntity Var,
    const llvm::MachineInstr& MI)

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:105

Parameters

llvm::DbgValueHistoryMap::InlinedEntity Var

const llvm::MachineInstr& MI

¶bool startDbgValue(
    llvm::DbgValueHistoryMap::InlinedEntity Var,
    const llvm::MachineInstr& MI,
    llvm::DbgValueHistoryMap::EntryIndex&
        NewIndex)

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:103

Parameters

llvm::DbgValueHistoryMap::InlinedEntity Var

const llvm::MachineInstr& MI

llvm::DbgValueHistoryMap::EntryIndex& NewIndex

¶void trimLocationRanges(
    const llvm::MachineFunction& MF,
    llvm::LexicalScopes& LScopes,
    const llvm::InstructionOrdering& Ordering)

Description

Drop location ranges which exist entirely outside each variable's scope.

Declared at: llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h:117

Parameters

const llvm::MachineFunction& MF

llvm::LexicalScopes& LScopes

const llvm::InstructionOrdering& Ordering