class ModuloSchedule

Declaration

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

Description

Represents a schedule for a single-block loop. For every instruction we maintain a Cycle and Stage.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:79

Member Variables

private llvm::MachineLoop* Loop

The block containing the loop instructions.

private std::vector<MachineInstr*> ScheduledInstrs

The instructions to be generated, in total order. Cycle provides a partial order; the total order within cycles has been decided by the schedule producer.

private DenseMap<llvm::MachineInstr*, int> Cycle

The cycle for each instruction.

private DenseMap<llvm::MachineInstr*, int> Stage

The stage for each instruction.

private int NumStages

The number of stages in this schedule (Max(Stage) + 1).

Method Overview

• public ModuloSchedule(llvm::MachineFunction & MF, llvm::MachineLoop * Loop, std::vector<MachineInstr *> ScheduledInstrs, DenseMap<llvm::MachineInstr *, int> Cycle, DenseMap<llvm::MachineInstr *, int> Stage)
• public void dump()
• public int getCycle(llvm::MachineInstr * MI)
• public int getFinalCycle()
• public int getFirstCycle()
• public ArrayRef<llvm::MachineInstr *> getInstructions()
• public llvm::MachineLoop * getLoop() const
• public int getNumStages() const
• public int getStage(llvm::MachineInstr * MI)
• public void print(llvm::raw_ostream & OS)
• public void setStage(llvm::MachineInstr * MI, int MIStage)

Methods

¶ModuloSchedule(
    llvm::MachineFunction& MF,
    llvm::MachineLoop* Loop,
    std::vector<MachineInstr*> ScheduledInstrs,
    DenseMap<llvm::MachineInstr*, int> Cycle,
    DenseMap<llvm::MachineInstr*, int> Stage)

Description

Create a new ModuloSchedule.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:106

Parameters

llvm::MachineFunction& MF

llvm::MachineLoop* Loop

std::vector<MachineInstr*> ScheduledInstrs

DenseMap<llvm::MachineInstr*, int> Cycle

DenseMap<llvm::MachineInstr*, int> Stage

¶void dump()

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:154

¶int getCycle(llvm::MachineInstr* MI)

Description

Return the cycle that MI is scheduled at, or -1.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:140

Parameters

llvm::MachineInstr* MI

¶int getFinalCycle()

Description

Return the final cycle in the schedule, which is the cycle index of the last instruction.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:131

¶int getFirstCycle()

Description

Return the first cycle in the schedule, which is the cycle index of the first instruction.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:127

¶ArrayRef<llvm::MachineInstr*> getInstructions()

Description

Return the rescheduled instructions in order.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:152

¶llvm::MachineLoop* getLoop() const

Description

Return the single-block loop being scheduled.

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

¶int getNumStages() const

Description

Return the number of stages contained in this schedule, which is the largest stage index + 1.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:123

¶int getStage(llvm::MachineInstr* MI)

Description

Return the stage that MI is scheduled in, or -1.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:134

Parameters

llvm::MachineInstr* MI

¶void print(llvm::raw_ostream& OS)

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:155

Parameters

llvm::raw_ostream& OS

¶void setStage(llvm::MachineInstr* MI, int MIStage)

Description

Set the stage of a newly created instruction.

Declared at: llvm/include/llvm/CodeGen/ModuloSchedule.h:146

Parameters

llvm::MachineInstr* MI

int MIStage