Public Types
enum	JTEntryKind { EK_BlockAddress , EK_GPRel64BlockAddress , EK_GPRel32BlockAddress , EK_LabelDifference32 , EK_LabelDifference64 , EK_Inline , EK_Custom32 }
	JTEntryKind - This enum indicates how each entry of the jump table is represented and emitted. More...

Public Member Functions
	MachineJumpTableInfo (JTEntryKind Kind)

JTEntryKind	getEntryKind () const

unsigned	getEntrySize (const DataLayout &TD) const
	getEntrySize - Return the size of each entry in the jump table.

unsigned	getEntryAlignment (const DataLayout &TD) const
	getEntryAlignment - Return the alignment of each entry in the jump table.

unsigned	createJumpTableIndex (const std::vector< MachineBasicBlock * > &DestBBs)
	createJumpTableIndex - Create a new jump table.

bool	isEmpty () const
	isEmpty - Return true if there are no jump tables.

const std::vector< MachineJumpTableEntry > &	getJumpTables () const

void	RemoveJumpTable (unsigned Idx)
	RemoveJumpTable - Mark the specific index as being dead.

bool	RemoveMBBFromJumpTables (MachineBasicBlock *MBB)
	RemoveMBBFromJumpTables - If MBB is present in any jump tables, remove it.

bool	ReplaceMBBInJumpTables (MachineBasicBlock Old, MachineBasicBlock New)
	ReplaceMBBInJumpTables - If Old is the target of any jump tables, update the jump tables to branch to New instead.

bool	ReplaceMBBInJumpTable (unsigned Idx, MachineBasicBlock Old, MachineBasicBlock New)
	ReplaceMBBInJumpTable - If Old is a target of the jump tables, update the jump table to branch to New instead.

void	print (raw_ostream &OS) const
	print - Used by the MachineFunction printer to print information about jump tables.

void	dump () const
	dump - Call to stderr.

Detailed Description

Definition at line 42 of file MachineJumpTableInfo.h.

Member Enumeration Documentation

JTEntryKind - This enum indicates how each entry of the jump table is represented and emitted.

Enumerator
EK_BlockAddress	EK_BlockAddress - Each entry is a plain address of block, e.g.: .word LBB123.
EK_GPRel64BlockAddress	EK_GPRel64BlockAddress - Each entry is an address of block, encoded with a relocation as gp-relative, e.g.: .gpdword LBB123.
EK_GPRel32BlockAddress	EK_GPRel32BlockAddress - Each entry is an address of block, encoded with a relocation as gp-relative, e.g.: .gprel32 LBB123.
EK_LabelDifference32	EK_LabelDifference32 - Each entry is the address of the block minus the address of the jump table. This is used for PIC jump tables where gprel32 is not supported. e.g.: .word LBB123 - LJTI1_2 If the .set directive is supported, this is emitted as: .set L4_5_set_123, LBB123 - LJTI1_2 .word L4_5_set_123
EK_LabelDifference64	EK_LabelDifference64 - Each entry is the address of the block minus the address of the jump table. This is used for PIC jump tables where gprel64 is not supported. e.g.: .quad LBB123 - LJTI1_2
EK_Inline	EK_Inline - Jump table entries are emitted inline at their point of use. It is the responsibility of the target to emit the entries.
EK_Custom32	EK_Custom32 - Each entry is a 32-bit value that is custom lowered by the TargetLowering::LowerCustomJumpTableEntry hook.