LLVM API Documentation

llvm::SwitchInst Class Reference

#include <Instructions.h>

Inheritance diagram for llvm::SwitchInst:

[legend]Collaboration diagram for llvm::SwitchInst:

[legend]List of all members.


Public Member Functions
	SwitchInst (Value Value, BasicBlock Default, Instruction *InsertBefore=0)
	SwitchInst (Value Value, BasicBlock Default, BasicBlock *InsertAtEnd)
virtual SwitchInst *	clone () const
	Terminators must implement the methods required by Instruction...
const Value *	getCondition () const
Value *	getCondition ()
const BasicBlock *	getDefaultDest () const
BasicBlock *	getDefaultDest ()
unsigned	getNumCases () const
Constant *	getCaseValue (unsigned i)
const Constant *	getCaseValue (unsigned i) const
unsigned	findCaseValue (const Constant *C) const
void	addCase (Constant OnVal, BasicBlock Dest)
void	removeCase (unsigned idx)
virtual const BasicBlock *	getSuccessor (unsigned idx) const
BasicBlock *	getSuccessor (unsigned idx)
virtual void	setSuccessor (unsigned idx, BasicBlock *NewSucc)
	Set a successor at a given index.
const Constant *	getSuccessorValue (unsigned idx) const
Constant *	getSuccessorValue (unsigned idx)
virtual unsigned	getNumSuccessors () const
Static Public Member Functions
static bool	classof (const SwitchInst *)
static bool	classof (const Instruction *I)
	Methods for support type inquiry through isa, cast, and dyn_cast:.
static bool	classof (const Value *V)

Detailed Description

SwitchInst - Multiway switch

Definition at line 961 of file Instructions.h.

Constructor & Destructor Documentation

llvm::SwitchInst::SwitchInst ( Value * Value,

BasicBlock * Default,

Instruction * InsertBefore = 0

) [inline]

Definition at line 970 of file Instructions.h.

llvm::SwitchInst::SwitchInst ( Value * Value,

BasicBlock * Default,

BasicBlock * InsertAtEnd

) [inline]

Definition at line 974 of file Instructions.h.

Member Function Documentation

void SwitchInst::addCase ( Constant * OnVal,

BasicBlock * Dest

)

addCase - Add an entry to the switch instruction...
Definition at line 778 of file Instructions.cpp.
References llvm::User::Operands.
Referenced by FoldValueComparisonIntoPredecessors(), llvm::BytecodeReader::ParseInstruction(), and llvm::SimplifyCFG().

static bool llvm::SwitchInst::classof ( const Value * V ) [inline, static]

Reimplemented from llvm::TerminatorInst.
Definition at line 1063 of file Instructions.h.
References classof().

static bool llvm::SwitchInst::classof ( const Instruction * I ) [inline, static]

Methods for support type inquiry through isa, cast, and dyn_cast:.

Reimplemented from llvm::TerminatorInst.
Definition at line 1060 of file Instructions.h.
References llvm::Instruction::getOpcode(), and llvm::ISD::Switch.

static bool llvm::SwitchInst::classof ( const SwitchInst * ) [inline, static]

Definition at line 1059 of file Instructions.h.
Referenced by classof().

SwitchInst * SwitchInst::clone ( ) const [virtual]

Terminators must implement the methods required by Instruction...

Implements llvm::TerminatorInst.
Definition at line 819 of file Instructions.cpp.

unsigned llvm::SwitchInst::findCaseValue ( const Constant * C ) const [inline]

findCaseValue - Search all of the case values for the specified constant. If it is explicitly handled, return the case number of it, otherwise return 0 to indicate that it is handled by the default handler.
Definition at line 1015 of file Instructions.h.
References getCaseValue(), and getNumCases().

const Constant* llvm::SwitchInst::getCaseValue ( unsigned i ) const [inline]

getCaseValue - Return the specified case value. Note that case #0, the default destination, does not have a case value.
Definition at line 1007 of file Instructions.h.
References getNumCases(), and getSuccessorValue().

Constant* llvm::SwitchInst::getCaseValue ( unsigned i ) [inline]

getCaseValue - Return the specified case value. Note that case #0, the default destination, does not have a case value.
Definition at line 1000 of file Instructions.h.
References getNumCases(), and getSuccessorValue().
Referenced by findCaseValue().

Value* llvm::SwitchInst::getCondition ( ) [inline]

Definition at line 984 of file Instructions.h.
References llvm::User::Operands.

const Value* llvm::SwitchInst::getCondition ( ) const [inline]

Definition at line 983 of file Instructions.h.
References llvm::User::Operands.

BasicBlock* llvm::SwitchInst::getDefaultDest ( ) [inline]

Definition at line 988 of file Instructions.h.
References llvm::User::Operands.

const BasicBlock* llvm::SwitchInst::getDefaultDest ( ) const [inline]

Definition at line 985 of file Instructions.h.
References llvm::User::Operands.
Referenced by llvm::Interpreter::visitSwitchInst().

unsigned llvm::SwitchInst::getNumCases ( ) const [inline]

getNumCases - return the number of 'cases' in this switch instruction. Note that case #0 is always the default case.
Definition at line 994 of file Instructions.h.
References llvm::User::Operands.
Referenced by findCaseValue(), and getCaseValue().

virtual unsigned llvm::SwitchInst::getNumSuccessors ( ) const [inline, virtual]

Implements llvm::TerminatorInst.
Definition at line 1056 of file Instructions.h.
References llvm::User::Operands.
Referenced by FoldValueComparisonIntoPredecessors(), getSuccessor(), getSuccessorValue(), and setSuccessor().

BasicBlock* llvm::SwitchInst::getSuccessor ( unsigned idx ) [inline]

Reimplemented from llvm::TerminatorInst.
Definition at line 1036 of file Instructions.h.
References getNumSuccessors(), and llvm::User::Operands.

virtual const BasicBlock* llvm::SwitchInst::getSuccessor ( unsigned idx ) const [inline, virtual]

Additionally, they must provide a method to get at the successors of this terminator instruction. 'idx' may not be >= the number of successors returned by getNumSuccessors()!
Implements llvm::TerminatorInst.
Definition at line 1032 of file Instructions.h.
References getNumSuccessors(), and llvm::User::Operands.
Referenced by FoldValueComparisonIntoPredecessors().

Constant* llvm::SwitchInst::getSuccessorValue ( unsigned idx ) [inline]

Definition at line 1052 of file Instructions.h.
References getNumSuccessors(), and llvm::User::Operands.

const Constant* llvm::SwitchInst::getSuccessorValue ( unsigned idx ) const [inline]

Definition at line 1048 of file Instructions.h.
References getNumSuccessors(), and llvm::User::Operands.
Referenced by getCaseValue().

void SwitchInst::removeCase ( unsigned idx )

removeCase - This method removes the specified successor from the switch instruction. Note that this cannot be used to remove the default destination (successor #0).
Definition at line 787 of file Instructions.cpp.
References llvm::User::Operands.

virtual void llvm::SwitchInst::setSuccessor ( unsigned idx,

BasicBlock * NewSucc

) [inline, virtual]

Set a successor at a given index.

Implements llvm::TerminatorInst.
Definition at line 1041 of file Instructions.h.
References getNumSuccessors(), and llvm::User::Operands.
Referenced by FoldValueComparisonIntoPredecessors().

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

llvm::SwitchInst Class Reference

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation