class LiveIntervals::HMEditor

Declaration

class LiveIntervals::HMEditor { /* full declaration omitted */ };

Description

Toolkit used by handleMove to trim or extend live intervals.

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:979

Member Variables

private llvm::LiveIntervals& LIS

private const llvm::MachineRegisterInfo& MRI

private const llvm::TargetRegisterInfo& TRI

private llvm::SlotIndex OldIdx

private llvm::SlotIndex NewIdx

private SmallPtrSet<llvm::LiveRange*, 8> Updated

private bool UpdateFlags

Method Overview

• public HMEditor(llvm::LiveIntervals & LIS, const llvm::MachineRegisterInfo & MRI, const llvm::TargetRegisterInfo & TRI, llvm::SlotIndex OldIdx, llvm::SlotIndex NewIdx, bool UpdateFlags)
• private llvm::SlotIndex findLastUseBefore(llvm::SlotIndex Before, llvm::Register Reg, llvm::LaneBitmask LaneMask)
• public llvm::LiveRange * getRegUnitLI(unsigned int Unit)
• private void handleMoveDown(llvm::LiveRange & LR)
• private void handleMoveUp(llvm::LiveRange & LR, llvm::Register Reg, llvm::LaneBitmask LaneMask)
• public void updateAllRanges(llvm::MachineInstr * MI)
• private void updateRange(llvm::LiveRange & LR, llvm::Register Reg, llvm::LaneBitmask LaneMask)
• private void updateRegMaskSlots()

Methods

¶HMEditor(llvm::LiveIntervals& LIS,
         const llvm::MachineRegisterInfo& MRI,
         const llvm::TargetRegisterInfo& TRI,
         llvm::SlotIndex OldIdx,
         llvm::SlotIndex NewIdx,
         bool UpdateFlags)

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:990

Parameters

llvm::LiveIntervals& LIS

const llvm::MachineRegisterInfo& MRI

const llvm::TargetRegisterInfo& TRI

llvm::SlotIndex OldIdx

llvm::SlotIndex NewIdx

bool UpdateFlags

¶llvm::SlotIndex findLastUseBefore(
    llvm::SlotIndex Before,
    llvm::Register Reg,
    llvm::LaneBitmask LaneMask)

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:1456

Parameters

llvm::SlotIndex Before

llvm::Register Reg

llvm::LaneBitmask LaneMask

¶llvm::LiveRange* getRegUnitLI(unsigned int Unit)

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:1000

Parameters

unsigned int Unit

¶void handleMoveDown(llvm::LiveRange& LR)

Description

Update LR to reflect an instruction has been moved downwards from OldIdx to NewIdx (OldIdx < NewIdx).

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:1101

Parameters

llvm::LiveRange& LR

¶void handleMoveUp(llvm::LiveRange& LR,
                  llvm::Register Reg,
                  llvm::LaneBitmask LaneMask)

Description

Update LR to reflect an instruction has been moved upwards from OldIdx to NewIdx (NewIdx < OldIdx).

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:1274

Parameters

llvm::LiveRange& LR

llvm::Register Reg

llvm::LaneBitmask LaneMask

¶void updateAllRanges(llvm::MachineInstr* MI)

Description

Update all live ranges touched by MI, assuming a move from OldIdx to NewIdx.

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:1008

Parameters

llvm::MachineInstr* MI

¶void updateRange(llvm::LiveRange& LR,
                 llvm::Register Reg,
                 llvm::LaneBitmask LaneMask)

Description

Update a single live range, assuming an instruction has been moved from OldIdx to NewIdx.

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:1077

Parameters

llvm::LiveRange& LR

llvm::Register Reg

llvm::LaneBitmask LaneMask

¶void updateRegMaskSlots()

Declared at: llvm/lib/CodeGen/LiveIntervals.cpp:1441