class DefaultSchedulerStrategy

Declaration

class DefaultSchedulerStrategy : public SchedulerStrategy { /* full declaration omitted */ };

Description

Default instruction selection strategy used by class Scheduler.

Declared at: llvm/include/llvm/MCA/HardwareUnits/Scheduler.h:40

Inherits from: SchedulerStrategy

Method Overview

• public DefaultSchedulerStrategy()
• public bool compare(const llvm::mca::InstRef & Lhs, const llvm::mca::InstRef & Rhs) const
• private int computeRank(const llvm::mca::InstRef & Lhs) const
• public virtual ~DefaultSchedulerStrategy()

Inherited from SchedulerStrategy:

• public compare

Methods

¶DefaultSchedulerStrategy()

Declared at: llvm/include/llvm/MCA/HardwareUnits/Scheduler.h:48

¶bool compare(const llvm::mca::InstRef& Lhs,
             const llvm::mca::InstRef& Rhs) const

Description

Returns true if Lhs should take priority over Rhs. This method is used by class Scheduler to select the "best" ready instruction to issue to the underlying pipelines.

Declared at: llvm/include/llvm/MCA/HardwareUnits/Scheduler.h:51

Parameters

const llvm::mca::InstRef& Lhs

const llvm::mca::InstRef& Rhs

¶int computeRank(
    const llvm::mca::InstRef& Lhs) const

Description

This method ranks instructions based on their age, and the number of known users. The lower the rank value, the better.

Declared at: llvm/include/llvm/MCA/HardwareUnits/Scheduler.h:43

Parameters

const llvm::mca::InstRef& Lhs

¶virtual ~DefaultSchedulerStrategy()

Declared at: llvm/include/llvm/MCA/HardwareUnits/Scheduler.h:49