class RegisterFile

Declaration

class RegisterFile : public HardwareUnit { /* full declaration omitted */ };

Description

Manages hardware register files, and tracks register definitions for register renaming purposes.

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:36

Inherits from: HardwareUnit

Method Overview

• public RegisterFile(const llvm::MCSchedModel & SM, const llvm::MCRegisterInfo & mri, unsigned int NumRegs = 0)
• public void addRegisterRead(llvm::mca::ReadState & RS, const llvm::MCSubtargetInfo & STI) const
• public void addRegisterWrite(llvm::mca::WriteRef Write, MutableArrayRef<unsigned int> UsedPhysRegs)
• public void cycleStart()
• public void dump() const
• public unsigned int getNumRegisterFiles() const
• public unsigned int isAvailable(ArrayRef<llvm::MCPhysReg> Regs) const
• public void removeRegisterWrite(const llvm::mca::WriteState & WS, MutableArrayRef<unsigned int> FreedPhysRegs)
• public bool tryEliminateMove(llvm::mca::WriteState & WS, llvm::mca::ReadState & RS)

Inherited from HardwareUnit:

Methods

¶RegisterFile(const llvm::MCSchedModel& SM,
             const llvm::MCRegisterInfo& mri,
             unsigned int NumRegs = 0)

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:188

Parameters

const llvm::MCSchedModel& SM

const llvm::MCRegisterInfo& mri

unsigned int NumRegs = 0

¶void addRegisterRead(
    llvm::mca::ReadState& RS,
    const llvm::MCSubtargetInfo& STI) const

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:199

Parameters

llvm::mca::ReadState& RS

const llvm::MCSubtargetInfo& STI

¶void addRegisterWrite(
    llvm::mca::WriteRef Write,
    MutableArrayRef<unsigned int> UsedPhysRegs)

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:195

Parameters

llvm::mca::WriteRef Write

MutableArrayRef<unsigned int> UsedPhysRegs

¶void cycleStart()

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:229

¶void dump() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:232

¶unsigned int getNumRegisterFiles() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:226

¶unsigned int isAvailable(
    ArrayRef<llvm::MCPhysReg> Regs) const

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:223

Parameters

ArrayRef<llvm::MCPhysReg> Regs

¶void removeRegisterWrite(
    const llvm::mca::WriteState& WS,
    MutableArrayRef<unsigned int> FreedPhysRegs)

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:204

Parameters

const llvm::mca::WriteState& WS

MutableArrayRef<unsigned int> FreedPhysRegs

¶bool tryEliminateMove(llvm::mca::WriteState& WS,
                      llvm::mca::ReadState& RS)

Declared at: llvm/include/llvm/MCA/HardwareUnits/RegisterFile.h:212

Parameters

llvm::mca::WriteState& WS

llvm::mca::ReadState& RS