class ResourceState

Declaration

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

Description

A processor resource descriptor. There is an instance of this class for every processor resource defined by the machine scheduling model. Objects of class ResourceState dynamically track the usage of processor resource units.

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:136

Method Overview

• public ResourceState(const llvm::MCProcResourceDesc & Desc, unsigned int Index, uint64_t Mask)
• public void clearReserved()
• public bool containsResource(uint64_t ID) const
• public void dump() const
• public int getBufferSize() const
• public unsigned int getNumUnits() const
• public unsigned int getProcResourceID() const
• public uint64_t getReadyMask() const
• public uint64_t getResourceMask() const
• public bool isADispatchHazard() const
• public bool isAResourceGroup() const
• public llvm::mca::ResourceStateEvent isBufferAvailable() const
• public bool isBuffered() const
• public bool isInOrder() const
• public bool isReady(unsigned int NumUnits = 1) const
• public bool isReserved() const
• public void markSubResourceAsUsed(uint64_t ID)
• public void releaseBuffer()
• public void releaseSubResource(uint64_t ID)
• public bool reserveBuffer()
• public void setReserved()

Methods

¶ResourceState(
    const llvm::MCProcResourceDesc& Desc,
    unsigned int Index,
    uint64_t Mask)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:215

Parameters

const llvm::MCProcResourceDesc& Desc

unsigned int Index

uint64_t Mask

¶void clearReserved()

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:230

¶bool containsResource(uint64_t ID) const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:238

Parameters

uint64_t ID

¶void dump() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:289

¶int getBufferSize() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:220

¶unsigned int getNumUnits() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:250

¶unsigned int getProcResourceID() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:217

¶uint64_t getReadyMask() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:219

¶uint64_t getResourceMask() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:218

¶bool isADispatchHazard() const

Description

Returns true if this is an in-order dispatch/issue resource.

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

¶bool isAResourceGroup() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:236

¶llvm::mca::ResourceStateEvent isBufferAvailable()
    const

Description

Checks if there is an available slot in the resource buffer. Returns RS_BUFFER_AVAILABLE if this is not a buffered resource, or if there is a slot available. Returns RS_RESERVED if this buffered resource is a dispatch hazard, and it is reserved. Returns RS_BUFFER_UNAVAILABLE if there are no available slots.

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:263

¶bool isBuffered() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:222

¶bool isInOrder() const

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

¶bool isReady(unsigned int NumUnits = 1) const

Description

Returs true if this resource is not reserved, and if there are at least `NumUnits` available units.

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:234

Parameters

unsigned int NumUnits = 1

¶bool isReserved() const

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:227

¶void markSubResourceAsUsed(uint64_t ID)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:240

Parameters

uint64_t ID

¶void releaseBuffer()

Description

Releases a slot in the buffer.

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:279

¶void releaseSubResource(uint64_t ID)

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:245

Parameters

uint64_t ID

¶bool reserveBuffer()

Description

Reserve a buffer slot. Returns true if the buffer is not full. It always returns true if BufferSize is set to zero.

Declared at: llvm/include/llvm/MCA/HardwareUnits/ResourceManager.h:269

¶void setReserved()

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