llvm::AMDGPU::IsaInfo Namespace Reference

Enumerations
enum	{ FIXED_NUM_SGPRS_FOR_INIT_BUG = 96, TRAP_NUM_SGPRS = 16 }

Functions
void	streamIsaVersion (const MCSubtargetInfo *STI, raw_ostream &Stream)
	Streams isa version string for given subtarget STI into Stream. More...
bool	hasCodeObjectV3 (const MCSubtargetInfo *STI)
unsigned	getWavefrontSize (const MCSubtargetInfo *STI)
unsigned	getLocalMemorySize (const MCSubtargetInfo *STI)
unsigned	getEUsPerCU (const MCSubtargetInfo *STI)
unsigned	getMaxWorkGroupsPerCU (const MCSubtargetInfo *STI, unsigned FlatWorkGroupSize)
unsigned	getMaxWavesPerCU (const MCSubtargetInfo *STI)
unsigned	getMaxWavesPerCU (const MCSubtargetInfo *STI, unsigned FlatWorkGroupSize)
unsigned	getMinWavesPerEU (const MCSubtargetInfo *STI)
unsigned	getMaxWavesPerEU ()
unsigned	getMaxWavesPerEU (const MCSubtargetInfo *STI, unsigned FlatWorkGroupSize)
unsigned	getMinFlatWorkGroupSize (const MCSubtargetInfo *STI)
unsigned	getMaxFlatWorkGroupSize (const MCSubtargetInfo *STI)
unsigned	getWavesPerWorkGroup (const MCSubtargetInfo *STI, unsigned FlatWorkGroupSize)
unsigned	getSGPRAllocGranule (const MCSubtargetInfo *STI)
unsigned	getSGPREncodingGranule (const MCSubtargetInfo *STI)
unsigned	getTotalNumSGPRs (const MCSubtargetInfo *STI)
unsigned	getAddressableNumSGPRs (const MCSubtargetInfo *STI)
unsigned	getMinNumSGPRs (const MCSubtargetInfo *STI, unsigned WavesPerEU)
unsigned	getMaxNumSGPRs (const MCSubtargetInfo *STI, unsigned WavesPerEU, bool Addressable)
unsigned	getNumExtraSGPRs (const MCSubtargetInfo *STI, bool VCCUsed, bool FlatScrUsed, bool XNACKUsed)
unsigned	getNumExtraSGPRs (const MCSubtargetInfo *STI, bool VCCUsed, bool FlatScrUsed)
unsigned	getNumSGPRBlocks (const MCSubtargetInfo *STI, unsigned NumSGPRs)
unsigned	getVGPRAllocGranule (const MCSubtargetInfo *STI)
unsigned	getVGPREncodingGranule (const MCSubtargetInfo *STI)
unsigned	getTotalNumVGPRs (const MCSubtargetInfo *STI)
unsigned	getAddressableNumVGPRs (const MCSubtargetInfo *STI)
unsigned	getMinNumVGPRs (const MCSubtargetInfo *STI, unsigned WavesPerEU)
unsigned	getMaxNumVGPRs (const MCSubtargetInfo *STI, unsigned WavesPerEU)
unsigned	getNumVGPRBlocks (const MCSubtargetInfo *STI, unsigned NumVGPRs)

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
FIXED_NUM_SGPRS_FOR_INIT_BUG
TRAP_NUM_SGPRS

Definition at line 53 of file AMDGPUBaseInfo.h.

Function Documentation

getAddressableNumSGPRs()

unsigned llvm::AMDGPU::IsaInfo::getAddressableNumSGPRs

(

const MCSubtargetInfo *

STI

)

Returns

Addressable number of SGPRs for given subtarget STI.

Definition at line 298 of file AMDGPUBaseInfo.cpp.

References FIXED_NUM_SGPRS_FOR_INIT_BUG, llvm::MCSubtargetInfo::getCPU(), llvm::MCSubtargetInfo::getFeatureBits(), llvm::AMDGPU::getIsaVersion(), llvm::AMDGPU::IsaVersion::Major, and llvm::IndexedInstrProf::Version.

Referenced by llvm::GCNSubtarget::getAddressableNumSGPRs(), getMaxNumSGPRs(), getMinNumSGPRs(), and getSpecialRegForName().

getAddressableNumVGPRs()

unsigned llvm::AMDGPU::IsaInfo::getAddressableNumVGPRs

(

const MCSubtargetInfo *

STI

)

Returns

Addressable number of VGPRs for given subtarget STI.

Definition at line 381 of file AMDGPUBaseInfo.cpp.

References getTotalNumVGPRs().

Referenced by llvm::GCNSubtarget::getAddressableNumVGPRs(), getMaxNumVGPRs(), and getMinNumVGPRs().

getEUsPerCU()

unsigned llvm::AMDGPU::IsaInfo::getEUsPerCU

(

const MCSubtargetInfo *

STI

)

Returns

Number of execution units per compute unit for given subtarget STI.

Definition at line 227 of file AMDGPUBaseInfo.cpp.

Referenced by llvm::GCNSubtarget::getEUsPerCU(), getMaxWavesPerCU(), and getMaxWavesPerEU().

getLocalMemorySize()

unsigned llvm::AMDGPU::IsaInfo::getLocalMemorySize

(

const MCSubtargetInfo *

STI

)

Returns

Local memory size in bytes for given subtarget STI.

Definition at line 218 of file AMDGPUBaseInfo.cpp.

References llvm::MCSubtargetInfo::getFeatureBits().

getMaxFlatWorkGroupSize()

unsigned llvm::AMDGPU::IsaInfo::getMaxFlatWorkGroupSize

(

const MCSubtargetInfo *

STI

)

Returns

Maximum flat work group size for given subtarget STI.

Definition at line 270 of file AMDGPUBaseInfo.cpp.

Referenced by llvm::GCNSubtarget::getMaxFlatWorkGroupSize(), and llvm::R600Subtarget::getMaxFlatWorkGroupSize().

getMaxNumSGPRs()

unsigned llvm::AMDGPU::IsaInfo::getMaxNumSGPRs	(	const MCSubtargetInfo *	STI,
		unsigned	WavesPerEU,
		bool	Addressable
	)

Returns

Maximum number of SGPRs that meets the given number of waves per execution unit requirement for given subtarget STI.

Definition at line 321 of file AMDGPUBaseInfo.cpp.

References llvm::alignDown(), assert(), getAddressableNumSGPRs(), llvm::MCSubtargetInfo::getCPU(), llvm::MCSubtargetInfo::getFeatureBits(), llvm::AMDGPU::getIsaVersion(), getSGPRAllocGranule(), getTotalNumSGPRs(), llvm::AMDGPU::IsaVersion::Major, TRAP_NUM_SGPRS, and llvm::IndexedInstrProf::Version.

Referenced by llvm::GCNSubtarget::getMaxNumSGPRs().

getMaxNumVGPRs()

unsigned llvm::AMDGPU::IsaInfo::getMaxNumVGPRs	(	const MCSubtargetInfo *	STI,
		unsigned	WavesPerEU
	)

Returns

Maximum number of VGPRs that meets given number of waves per execution unit requirement for given subtarget STI.

Definition at line 396 of file AMDGPUBaseInfo.cpp.

References llvm::alignDown(), assert(), getAddressableNumVGPRs(), getTotalNumVGPRs(), and getVGPRAllocGranule().

Referenced by llvm::GCNSubtarget::getMaxNumVGPRs().

getMaxWavesPerCU() [1/2]

unsigned llvm::AMDGPU::IsaInfo::getMaxWavesPerCU

(

const MCSubtargetInfo *

STI

)

Returns

Maximum number of waves per compute unit for given subtarget STI without any kind of limitation.

Definition at line 242 of file AMDGPUBaseInfo.cpp.

References getEUsPerCU(), and getMaxWavesPerEU().

Referenced by llvm::GCNSubtarget::getMaxWavesPerCU().

getMaxWavesPerCU() [2/2]

unsigned llvm::AMDGPU::IsaInfo::getMaxWavesPerCU	(	const MCSubtargetInfo *	STI,
		unsigned	FlatWorkGroupSize
	)

Returns

Maximum number of waves per compute unit for given subtarget STI and limited by given FlatWorkGroupSize.

Definition at line 246 of file AMDGPUBaseInfo.cpp.

References getWavesPerWorkGroup().

Referenced by getMaxWavesPerEU().

getMaxWavesPerEU() [1/2]

unsigned llvm::AMDGPU::IsaInfo::getMaxWavesPerEU

(

)

Returns

Maximum number of waves per execution unit for given subtarget STI without any kind of limitation.

Definition at line 255 of file AMDGPUBaseInfo.cpp.

Referenced by llvm::GCNSubtarget::getMaxWavesPerEU(), and llvm::R600Subtarget::getMaxWavesPerEU().

getMaxWavesPerEU() [2/2]

unsigned llvm::AMDGPU::IsaInfo::getMaxWavesPerEU	(	const MCSubtargetInfo *	STI,
		unsigned	FlatWorkGroupSize
	)

Returns

Maximum number of waves per execution unit for given subtarget STI and limited by given FlatWorkGroupSize.

Definition at line 260 of file AMDGPUBaseInfo.cpp.

References llvm::alignTo(), getEUsPerCU(), and getMaxWavesPerCU().

Referenced by getMaxWavesPerCU(), getMinNumSGPRs(), and getMinNumVGPRs().

getMaxWorkGroupsPerCU()

unsigned llvm::AMDGPU::IsaInfo::getMaxWorkGroupsPerCU	(	const MCSubtargetInfo *	STI,
		unsigned	FlatWorkGroupSize
	)

Returns

Maximum number of work groups per compute unit for given subtarget STI and limited by given FlatWorkGroupSize.

Definition at line 231 of file AMDGPUBaseInfo.cpp.

References llvm::MCSubtargetInfo::getFeatureBits(), getWavesPerWorkGroup(), and N.

Referenced by llvm::GCNSubtarget::getMaxWorkGroupsPerCU(), and llvm::R600Subtarget::getMaxWorkGroupsPerCU().

getMinFlatWorkGroupSize()

unsigned llvm::AMDGPU::IsaInfo::getMinFlatWorkGroupSize

(

const MCSubtargetInfo *

STI

)

Returns

Minimum flat work group size for given subtarget STI.

Definition at line 266 of file AMDGPUBaseInfo.cpp.

Referenced by llvm::GCNSubtarget::getMinFlatWorkGroupSize(), and llvm::R600Subtarget::getMinFlatWorkGroupSize().

getMinNumSGPRs()

unsigned llvm::AMDGPU::IsaInfo::getMinNumSGPRs	(	const MCSubtargetInfo *	STI,
		unsigned	WavesPerEU
	)

Returns

Minimum number of SGPRs that meets the given number of waves per execution unit requirement for given subtarget STI.

Definition at line 308 of file AMDGPUBaseInfo.cpp.

References llvm::alignDown(), assert(), getAddressableNumSGPRs(), llvm::MCSubtargetInfo::getFeatureBits(), getMaxWavesPerEU(), getSGPRAllocGranule(), getTotalNumSGPRs(), and TRAP_NUM_SGPRS.

Referenced by llvm::GCNSubtarget::getMaxNumSGPRs(), and llvm::GCNSubtarget::getMinNumSGPRs().

getMinNumVGPRs()

unsigned llvm::AMDGPU::IsaInfo::getMinNumVGPRs	(	const MCSubtargetInfo *	STI,
		unsigned	WavesPerEU
	)

Returns

Minimum number of VGPRs that meets given number of waves per execution unit requirement for given subtarget STI.

Definition at line 385 of file AMDGPUBaseInfo.cpp.

References llvm::alignDown(), assert(), getAddressableNumVGPRs(), getMaxWavesPerEU(), getTotalNumVGPRs(), and getVGPRAllocGranule().

Referenced by llvm::GCNSubtarget::getMaxNumVGPRs(), and llvm::GCNSubtarget::getMinNumVGPRs().

getMinWavesPerEU()

unsigned llvm::AMDGPU::IsaInfo::getMinWavesPerEU

(

const MCSubtargetInfo *

STI

)

Returns

Minimum number of waves per execution unit for given subtarget STI.

Definition at line 251 of file AMDGPUBaseInfo.cpp.

Referenced by llvm::GCNSubtarget::getMinWavesPerEU(), and llvm::R600Subtarget::getMinWavesPerEU().

getNumExtraSGPRs() [1/2]

unsigned llvm::AMDGPU::IsaInfo::getNumExtraSGPRs	(	const MCSubtargetInfo *	STI,
		bool	VCCUsed,
		bool	FlatScrUsed,
		bool	XNACKUsed
	)

Returns

Number of extra SGPRs implicitly required by given subtarget STI when the given special registers are used.

Definition at line 336 of file AMDGPUBaseInfo.cpp.

References llvm::MCSubtargetInfo::getCPU(), llvm::AMDGPU::getIsaVersion(), llvm::AMDGPU::IsaVersion::Major, and llvm::IndexedInstrProf::Version.

Referenced by llvm::AMDGPUAsmPrinter::EmitFunctionBodyEnd(), getSpecialRegForName(), and hasAnyNonFlatUseOfReg().

getNumExtraSGPRs() [2/2]

unsigned llvm::AMDGPU::IsaInfo::getNumExtraSGPRs	(	const MCSubtargetInfo *	STI,
		bool	VCCUsed,
		bool	FlatScrUsed
	)

Returns

Number of extra SGPRs implicitly required by given subtarget STI when the given special registers are used. XNACK is inferred from STI.

Definition at line 357 of file AMDGPUBaseInfo.cpp.

References llvm::MCSubtargetInfo::getFeatureBits().

getNumSGPRBlocks()

unsigned llvm::AMDGPU::IsaInfo::getNumSGPRBlocks	(	const MCSubtargetInfo *	STI,
		unsigned	NumSGPRs
	)

Returns

Number of SGPR blocks needed for given subtarget STI when NumSGPRs are used. NumSGPRs should already include any special register counts.

Definition at line 363 of file AMDGPUBaseInfo.cpp.

References llvm::alignTo(), getSGPREncodingGranule(), and llvm::max().

Referenced by getSpecialRegForName(), and hasAnyNonFlatUseOfReg().

getNumVGPRBlocks()

unsigned llvm::AMDGPU::IsaInfo::getNumVGPRBlocks	(	const MCSubtargetInfo *	STI,
		unsigned	NumSGPRs
	)

Returns

Number of VGPR blocks needed for given subtarget STI when NumVGPRs are used.

Definition at line 405 of file AMDGPUBaseInfo.cpp.

References llvm::alignTo(), getVGPREncodingGranule(), and llvm::max().

Referenced by getSpecialRegForName(), and hasAnyNonFlatUseOfReg().

getSGPRAllocGranule()

unsigned llvm::AMDGPU::IsaInfo::getSGPRAllocGranule

(

const MCSubtargetInfo *

STI

)

Returns

SGPR allocation granularity for given subtarget STI.

Definition at line 280 of file AMDGPUBaseInfo.cpp.

References llvm::MCSubtargetInfo::getCPU(), llvm::AMDGPU::getIsaVersion(), llvm::AMDGPU::IsaVersion::Major, and llvm::IndexedInstrProf::Version.

Referenced by getMaxNumSGPRs(), getMinNumSGPRs(), and llvm::GCNSubtarget::getSGPRAllocGranule().

getSGPREncodingGranule()

unsigned llvm::AMDGPU::IsaInfo::getSGPREncodingGranule

(

const MCSubtargetInfo *

STI

)

Returns

SGPR encoding granularity for given subtarget STI.

Definition at line 287 of file AMDGPUBaseInfo.cpp.

Referenced by getNumSGPRBlocks(), and llvm::GCNSubtarget::getSGPREncodingGranule().

getTotalNumSGPRs()

unsigned llvm::AMDGPU::IsaInfo::getTotalNumSGPRs

(

const MCSubtargetInfo *

STI

)

Returns

Total number of SGPRs for given subtarget STI.

Definition at line 291 of file AMDGPUBaseInfo.cpp.

References llvm::MCSubtargetInfo::getCPU(), llvm::AMDGPU::getIsaVersion(), llvm::AMDGPU::IsaVersion::Major, and llvm::IndexedInstrProf::Version.

Referenced by getMaxNumSGPRs(), getMinNumSGPRs(), llvm::GCNSubtarget::getTotalNumSGPRs(), and hasAnyNonFlatUseOfReg().

getTotalNumVGPRs()

unsigned llvm::AMDGPU::IsaInfo::getTotalNumVGPRs

(

const MCSubtargetInfo *

STI

)

Returns

Total number of VGPRs for given subtarget STI.

Definition at line 377 of file AMDGPUBaseInfo.cpp.

Referenced by getAddressableNumVGPRs(), getMaxNumVGPRs(), getMinNumVGPRs(), and llvm::GCNSubtarget::getTotalNumVGPRs().

getVGPRAllocGranule()

unsigned llvm::AMDGPU::IsaInfo::getVGPRAllocGranule

(

const MCSubtargetInfo *

STI

)

Returns

VGPR allocation granularity for given subtarget STI.

Definition at line 369 of file AMDGPUBaseInfo.cpp.

Referenced by getMaxNumVGPRs(), getMinNumVGPRs(), llvm::GCNSubtarget::getVGPRAllocGranule(), and getVGPREncodingGranule().

getVGPREncodingGranule()

unsigned llvm::AMDGPU::IsaInfo::getVGPREncodingGranule

(

const MCSubtargetInfo *

STI

)

Returns

VGPR encoding granularity for given subtarget STI.

Definition at line 373 of file AMDGPUBaseInfo.cpp.

References getVGPRAllocGranule().

Referenced by getNumVGPRBlocks(), and llvm::GCNSubtarget::getVGPREncodingGranule().

getWavefrontSize()

unsigned llvm::AMDGPU::IsaInfo::getWavefrontSize

(

const MCSubtargetInfo *

STI

)

Returns

Wavefront size for given subtarget STI.

Definition at line 209 of file AMDGPUBaseInfo.cpp.

References llvm::MCSubtargetInfo::getFeatureBits().

Referenced by getWavesPerWorkGroup().

getWavesPerWorkGroup()

unsigned llvm::AMDGPU::IsaInfo::getWavesPerWorkGroup	(	const MCSubtargetInfo *	STI,
		unsigned	FlatWorkGroupSize
	)

Returns

Number of waves per work group for given subtarget STI and limited by given FlatWorkGroupSize.

Definition at line 274 of file AMDGPUBaseInfo.cpp.

References llvm::alignTo(), and getWavefrontSize().

Referenced by getMaxWavesPerCU(), getMaxWorkGroupsPerCU(), and llvm::GCNSubtarget::getWavesPerWorkGroup().

hasCodeObjectV3()

bool llvm::AMDGPU::IsaInfo::hasCodeObjectV3

(

const MCSubtargetInfo *

STI

)

Returns

True if given subtarget STI supports code object version 3, false otherwise.

Definition at line 204 of file AMDGPUBaseInfo.cpp.

References llvm::Triple::AMDHSA, llvm::MCSubtargetInfo::getFeatureBits(), llvm::Triple::getOS(), and llvm::MCSubtargetInfo::getTargetTriple().

Referenced by llvm::AMDGPUAsmPrinter::AMDGPUAsmPrinter(), llvm::AMDGPUAsmPrinter::EmitEndOfAsmFile(), llvm::AMDGPUAsmPrinter::EmitFunctionBodyEnd(), llvm::AMDGPUAsmPrinter::EmitFunctionEntryLabel(), llvm::AMDGPUAsmPrinter::EmitStartOfAsmFile(), and getSpecialRegForName().

streamIsaVersion()

void llvm::AMDGPU::IsaInfo::streamIsaVersion	(	const MCSubtargetInfo *	STI,
		raw_ostream &	Stream
	)

Streams isa version string for given subtarget STI into Stream.

Definition at line 183 of file AMDGPUBaseInfo.cpp.

References llvm::raw_ostream::flush(), llvm::MCSubtargetInfo::getCPU(), llvm::AMDGPU::getIsaVersion(), llvm::MCSubtargetInfo::getTargetTriple(), llvm::AMDGPU::hasSRAMECC(), llvm::AMDGPU::hasXNACK(), and llvm::IndexedInstrProf::Version.

Referenced by llvm::AMDGPUAsmPrinter::EmitEndOfAsmFile(), llvm::AMDGPUAsmPrinter::EmitStartOfAsmFile(), and getSpecialRegForName().