llvm::DIExpressionCursor Class Reference

Holds a DIExpression and keeps track of how many operands have been consumed so far. More...

#include "llvm/IR/DebugInfoMetadata.h"

Public Member Functions
	DIExpressionCursor (const DIExpression *Expr)
	DIExpressionCursor (ArrayRef< uint64_t > Expr)
	DIExpressionCursor (const DIExpressionCursor &)=default
std::optional< DIExpression::ExprOperand >	take ()
	Consume one operation.
void	consume (unsigned N)
	Consume N operations.
std::optional< DIExpression::ExprOperand >	peek () const
	Return the current operation.
std::optional< DIExpression::ExprOperand >	peekNext () const
	Return the next operation.
std::optional< DIExpression::ExprOperand >	peekNextN (unsigned N) const
void	assignNewExpr (ArrayRef< uint64_t > Expr)
	operator bool () const
	Determine whether there are any operations left in this expression.
DIExpression::expr_op_iterator	begin () const
DIExpression::expr_op_iterator	end () const
std::optional< DIExpression::FragmentInfo >	getFragmentInfo () const
	Retrieve the fragment information, if any.

Detailed Description

Holds a DIExpression and keeps track of how many operands have been consumed so far.

Definition at line 3160 of file DebugInfoMetadata.h.

Constructor & Destructor Documentation

DIExpressionCursor() [1/3]

llvm::DIExpressionCursor::DIExpressionCursor ( const DIExpression *  Expr )

inline

Definition at line 3164 of file DebugInfoMetadata.h.

References assert(), End, llvm::DIExpression::expr_op_begin(), and llvm::DIExpression::expr_op_end().

DIExpressionCursor() [2/3]

llvm::DIExpressionCursor::DIExpressionCursor ( ArrayRef< uint64_t >  Expr )

inline

Definition at line 3173 of file DebugInfoMetadata.h.

References End.

DIExpressionCursor() [3/3]

llvm::DIExpressionCursor::DIExpressionCursor ( const DIExpressionCursor &  )

default

Member Function Documentation

assignNewExpr()

void llvm::DIExpressionCursor::assignNewExpr ( ArrayRef< uint64_t >  Expr )

inline

Definition at line 3219 of file DebugInfoMetadata.h.

References llvm::ArrayRef< T >::begin(), and llvm::ArrayRef< T >::end().

Referenced by startFromBeginning().

begin()

DIExpression::expr_op_iterator llvm::DIExpressionCursor::begin ( ) const

inline

Definition at line 3227 of file DebugInfoMetadata.h.

consume()

void llvm::DIExpressionCursor::consume ( unsigned  N )

inline

Consume N operations.

Definition at line 3186 of file DebugInfoMetadata.h.

References N.

Referenced by llvm::DwarfExpression::addMachineRegExpression(), and consumeOneOperator().

end()

DIExpression::expr_op_iterator llvm::DIExpressionCursor::end ( ) const

inline

Definition at line 3228 of file DebugInfoMetadata.h.

References End.

getFragmentInfo()

std::optional< DIExpression::FragmentInfo > llvm::DIExpressionCursor::getFragmentInfo ( ) const

inline

Retrieve the fragment information, if any.

Definition at line 3231 of file DebugInfoMetadata.h.

References End, and llvm::DIExpression::getFragmentInfo().

Referenced by llvm::DwarfExpression::addMachineRegExpression().

operator bool()

llvm::DIExpressionCursor::operator bool ( ) const

inline

Determine whether there are any operations left in this expression.

Definition at line 3225 of file DebugInfoMetadata.h.

References End.

peek()

std::optional< DIExpression::ExprOperand > llvm::DIExpressionCursor::peek ( ) const

inline

Return the current operation.

Definition at line 3189 of file DebugInfoMetadata.h.

References End.

Referenced by llvm::DwarfExpression::addMachineRegExpression(), canonicalizeDwarfOperations(), llvm::DIExpression::foldConstantMath(), and optimizeDwarfOperations().

peekNext()

std::optional< DIExpression::ExprOperand > llvm::DIExpressionCursor::peekNext ( ) const

inline

Return the next operation.

Definition at line 3196 of file DebugInfoMetadata.h.

References End.

Referenced by llvm::DwarfExpression::addMachineRegExpression(), llvm::DIExpression::foldConstantMath(), and optimizeDwarfOperations().

peekNextN()

std::optional< DIExpression::ExprOperand > llvm::DIExpressionCursor::peekNextN ( unsigned  N ) const

inline

Definition at line 3207 of file DebugInfoMetadata.h.

References End, llvm::DIExpression::expr_op_iterator::getNext(), I, and N.

Referenced by llvm::DIExpression::foldConstantMath().

take()

std::optional< DIExpression::ExprOperand > llvm::DIExpressionCursor::take ( )

inline

Consume one operation.

Definition at line 3179 of file DebugInfoMetadata.h.

References End.

Referenced by llvm::DwarfExpression::addMachineRegExpression(), llvm::DwarfExpression::beginEntryValueExpression(), and isMemoryLocation().

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The documentation for this class was generated from the following file:

• include/llvm/IR/DebugInfoMetadata.h