llvm::AMDGPU::CoExecInfo Struct Reference

Co-execution characteristics for a multi-cycle instruction. More...

#include "Target/AMDGPU/AMDGPUCoExecInfo.h"

Public Member Functions
	CoExecInfo ()
	Default constructor - initialize to safe defaults.
CoExecMaskT	getMask (unsigned Stage) const
	Get capability mask for a stage.
bool	canCoExec (CoExecMaskT InstMask, unsigned Stage) const
	Check if an instruction class mask can co-execute at a given stage.
std::optional< unsigned >	findNextAllowedStage (CoExecMaskT InstMask, unsigned FromStage) const
	Find next stage where the instruction class is allowed.
CoExecStageType	getType (unsigned Stage) const
	Get stage type for a specific stage.

Static Public Member Functions
static CoExecStageType	getStageType (CoExecMaskT Mask)
	Get stage type from mask for display.
static CoExecInfo	build (unsigned TotalWindow, const char *Pattern)
	Build a CoExecInfo from a pattern string.

Public Attributes
unsigned	TotalWindow = 0
	Number of cycles in the co-execution window, counting any trailing vacant stages.
CoExecSlotInfo	Slots [MaxCoExecStages]
	Per-stage slot info (capability mask).
StringRef	Pattern
	Pattern string for display (e.g., "0EIIEEIIV").

Detailed Description

Co-execution characteristics for a multi-cycle instruction.

Definition at line 236 of file AMDGPUCoExecInfo.h.

Constructor & Destructor Documentation

CoExecInfo()

llvm::AMDGPU::CoExecInfo::CoExecInfo ( )

inline

Default constructor - initialize to safe defaults.

Definition at line 246 of file AMDGPUCoExecInfo.h.

References llvm::AMDGPU::All, llvm::AMDGPU::I, llvm::AMDGPU::MaxCoExecStages, and Slots.

Referenced by build().

Member Function Documentation

build()

CoExecInfo llvm::AMDGPU::CoExecInfo::build ( unsigned TotalWindow, const char * Pattern )

inlinestatic

Build a CoExecInfo from a pattern string.

Build CoExecInfo from a pattern string.

Pattern chars: '0'=E0, 'E'=External, 'I'=Internal, 'V'=Vacant, 'S'=Internal+ScaleWMMAAbsorb (I plus next scaled WMMA), 'T'=TRANS co-exec (all except TRANS), 'A'=Any

Definition at line 312 of file AMDGPUCoExecInfo.h.

References llvm::AMDGPU::All, assert(), CoExecInfo(), llvm::AMDGPU::I, llvm::AMDGPU::MaxCoExecStages, Pattern, llvm::AMDGPU::StageE, llvm::AMDGPU::StageE0, llvm::AMDGPU::StageI, llvm::AMDGPU::StageIS, llvm::AMDGPU::StageTR, llvm::AMDGPU::StageV, and TotalWindow.

Referenced by llvm::AMDGPU::getCoExecInfo(), and llvm::AMDGPU::getMFMACoExecInfo().

canCoExec()

bool llvm::AMDGPU::CoExecInfo::canCoExec ( CoExecMaskT InstMask, unsigned Stage ) const

inline

Check if an instruction class mask can co-execute at a given stage.

Definition at line 257 of file AMDGPUCoExecInfo.h.

References Slots, and TotalWindow.

findNextAllowedStage()

std::optional< unsigned > llvm::AMDGPU::CoExecInfo::findNextAllowedStage ( CoExecMaskT InstMask, unsigned FromStage ) const

inline

Find next stage where the instruction class is allowed.

Definition at line 264 of file AMDGPUCoExecInfo.h.

References llvm::AMDGPU::I, Slots, and TotalWindow.

getMask()

CoExecMaskT llvm::AMDGPU::CoExecInfo::getMask ( unsigned Stage ) const

inline

Get capability mask for a stage.

Definition at line 252 of file AMDGPUCoExecInfo.h.

References llvm::AMDGPU::All, Slots, and TotalWindow.

Referenced by getType().

getStageType()

CoExecStageType llvm::AMDGPU::CoExecInfo::getStageType ( CoExecMaskT Mask )

inlinestatic

Get stage type from mask for display.

Definition at line 274 of file AMDGPUCoExecInfo.h.

References llvm::AMDGPU::E, llvm::AMDGPU::E0, llvm::AMDGPU::I, llvm::AMDGPU::IS, llvm::AMDGPU::StageE, llvm::AMDGPU::StageE0, llvm::AMDGPU::StageI, llvm::AMDGPU::StageIS, llvm::AMDGPU::StageTR, llvm::AMDGPU::StageV, llvm::AMDGPU::TR, llvm::AMDGPU::V, llvm::AMDGPU::VALU, and llvm::AMDGPU::WMMA.

Referenced by getType().

getType()

CoExecStageType llvm::AMDGPU::CoExecInfo::getType ( unsigned Stage ) const

inline

Get stage type for a specific stage.

Definition at line 296 of file AMDGPUCoExecInfo.h.

References getMask(), and getStageType().

Member Data Documentation

Pattern

StringRef llvm::AMDGPU::CoExecInfo::Pattern

Pattern string for display (e.g., "0EIIEEIIV").

Definition at line 243 of file AMDGPUCoExecInfo.h.

Referenced by build(), and llvm::AMDGPU::getMFMACoExecInfo().

Slots

CoExecSlotInfo llvm::AMDGPU::CoExecInfo::Slots[MaxCoExecStages]

Per-stage slot info (capability mask).

Definition at line 241 of file AMDGPUCoExecInfo.h.

Referenced by canCoExec(), CoExecInfo(), findNextAllowedStage(), getMask(), and llvm::AMDGPU::getMFMACoExecInfo().

TotalWindow

unsigned llvm::AMDGPU::CoExecInfo::TotalWindow = 0

Number of cycles in the co-execution window, counting any trailing vacant stages.

Definition at line 239 of file AMDGPUCoExecInfo.h.

Referenced by build(), canCoExec(), findNextAllowedStage(), getMask(), and llvm::AMDGPU::getMFMACoExecInfo().

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The documentation for this struct was generated from the following file:

• lib/Target/AMDGPU/AMDGPUCoExecInfo.h