llvm::GPUDivergenceAnalysis Class Reference

Divergence analysis frontend for GPU kernels. More...

#include "llvm/Analysis/DivergenceAnalysis.h"

Public Member Functions
	GPUDivergenceAnalysis (Function &F, const DominatorTree &DT, const PostDominatorTree &PDT, const LoopInfo &LI, const TargetTransformInfo &TTI)
	Runs the divergence analysis on , a GPU kernel. More...
bool	hasDivergence () const
	Whether any divergence was detected. More...
const Function &	getFunction () const
	The GPU kernel this analysis result is for. More...
bool	isDivergent (const Value &V) const
	Whether V is divergent. More...
bool	isUniform (const Value &V) const
	Whether V is uniform/non-divergent. More...
void	print (raw_ostream &OS, const Module *) const
	Print all divergent values in the kernel. More...

Detailed Description

Divergence analysis frontend for GPU kernels.

Definition at line 177 of file DivergenceAnalysis.h.

Constructor & Destructor Documentation

GPUDivergenceAnalysis()

GPUDivergenceAnalysis::GPUDivergenceAnalysis	(	Function &	F,
		const DominatorTree &	DT,
		const PostDominatorTree &	PDT,
		const LoopInfo &	LI,
		const TargetTransformInfo &	TTI
	)

Runs the divergence analysis on , a GPU kernel.

Definition at line 427 of file DivergenceAnalysis.cpp.

References llvm::DivergenceAnalysis::addUniformOverride(), Arg, llvm::Function::args(), llvm::DivergenceAnalysis::compute(), llvm::instructions(), llvm::TargetTransformInfo::isAlwaysUniform(), llvm::TargetTransformInfo::isSourceOfDivergence(), and llvm::DivergenceAnalysis::markDivergent().

Member Function Documentation

getFunction()

const Function& llvm::GPUDivergenceAnalysis::getFunction ( ) const

inline

The GPU kernel this analysis result is for.

Definition at line 191 of file DivergenceAnalysis.h.

References llvm::DivergenceAnalysis::getFunction(), and llvm::DivergenceAnalysis::isDivergent().

hasDivergence()

bool llvm::GPUDivergenceAnalysis::hasDivergence ( ) const

inline

Whether any divergence was detected.

Definition at line 188 of file DivergenceAnalysis.h.

References llvm::DivergenceAnalysis::hasDetectedDivergence().

isDivergent()

bool GPUDivergenceAnalysis::isDivergent

(

const Value &

V

)

const

Whether V is divergent.

Definition at line 449 of file DivergenceAnalysis.cpp.

References llvm::DivergenceAnalysis::isDivergent().

isUniform()

bool llvm::GPUDivergenceAnalysis::isUniform ( const Value &  V ) const

inline

Whether V is uniform/non-divergent.

Definition at line 197 of file DivergenceAnalysis.h.

References llvm::DivergenceAnalysis::isDivergent(), and llvm::DivergenceAnalysis::print().

print()

void GPUDivergenceAnalysis::print	(	raw_ostream &	OS,
		const Module *	mod
	)		const

Print all divergent values in the kernel.

Definition at line 453 of file DivergenceAnalysis.cpp.

References llvm::DivergenceAnalysis::getFunction(), llvm::Value::getName(), and llvm::DivergenceAnalysis::print().

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The documentation for this class was generated from the following files:

• include/llvm/Analysis/DivergenceAnalysis.h
• lib/Analysis/DivergenceAnalysis.cpp