llvm::TargetIRAnalysis Class Reference

Analysis pass providing the TargetTransformInfo. More...

#include "llvm/Analysis/TargetTransformInfo.h"

Inheritance diagram for llvm::TargetIRAnalysis:

Public Types
typedef TargetTransformInfo	Result

Public Member Functions
	TargetIRAnalysis ()
	Default construct a target IR analysis.
	TargetIRAnalysis (std::function< Result(const Function &)> TTICallback)
	Construct an IR analysis pass around a target-provide callback.
	TargetIRAnalysis (const TargetIRAnalysis &Arg)
	TargetIRAnalysis (TargetIRAnalysis &&Arg)
TargetIRAnalysis &	operator= (const TargetIRAnalysis &RHS)
TargetIRAnalysis &	operator= (TargetIRAnalysis &&RHS)
Result	run (const Function &F, FunctionAnalysisManager &)
Public Member Functions inherited from llvm::PassInfoMixin< DerivedT >
void	printPipeline (raw_ostream &OS, function_ref< StringRef(StringRef)> MapClassName2PassName)

Additional Inherited Members
Static Public Member Functions inherited from llvm::AnalysisInfoMixin< TargetIRAnalysis >
static AnalysisKey *	ID ()
	Returns an opaque, unique ID for this analysis type.
Static Public Member Functions inherited from llvm::PassInfoMixin< DerivedT >
static StringRef	name ()
	Gets the name of the pass we are mixed into.

Detailed Description

Analysis pass providing the TargetTransformInfo.

The core idea of the TargetIRAnalysis is to expose an interface through which LLVM targets can analyze and provide information about the middle end's target-independent IR. This supports use cases such as target-aware cost modeling of IR constructs.

This is a function analysis because much of the cost modeling for targets is done in a subtarget specific way and LLVM supports compiling different functions targeting different subtargets in order to support runtime dispatch according to the observed subtarget.

Definition at line 2765 of file TargetTransformInfo.h.

Member Typedef Documentation

Result

typedef TargetTransformInfo llvm::TargetIRAnalysis::Result

Definition at line 2767 of file TargetTransformInfo.h.

Constructor & Destructor Documentation

TargetIRAnalysis() [1/4]

TargetIRAnalysis::TargetIRAnalysis

(

)

Default construct a target IR analysis.

This will use the module's datalayout to construct a baseline conservative TTI result.

Definition at line 1242 of file TargetTransformInfo.cpp.

TargetIRAnalysis() [2/4]

TargetIRAnalysis::TargetIRAnalysis

(

std::function< Result(const Function &)>

TTICallback

)

Construct an IR analysis pass around a target-provide callback.

The callback will be called with a particular function for which the TTI is needed and must return a TTI object for that function.

Definition at line 1244 of file TargetTransformInfo.cpp.

TargetIRAnalysis() [3/4]

llvm::TargetIRAnalysis::TargetIRAnalysis ( const TargetIRAnalysis &  Arg )

inline

Definition at line 2782 of file TargetTransformInfo.h.

TargetIRAnalysis() [4/4]

llvm::TargetIRAnalysis::TargetIRAnalysis ( TargetIRAnalysis &&  Arg )

inline

Definition at line 2784 of file TargetTransformInfo.h.

Member Function Documentation

operator=() [1/2]

TargetIRAnalysis & llvm::TargetIRAnalysis::operator= ( const TargetIRAnalysis &  RHS )

inline

Definition at line 2786 of file TargetTransformInfo.h.

References RHS.

operator=() [2/2]

TargetIRAnalysis & llvm::TargetIRAnalysis::operator= ( TargetIRAnalysis &&  RHS )

inline

Definition at line 2790 of file TargetTransformInfo.h.

References RHS.

run()

TargetIRAnalysis::Result TargetIRAnalysis::run	(	const Function &	F,
		FunctionAnalysisManager &
	)

Definition at line 1248 of file TargetTransformInfo.cpp.

References F.

Referenced by computeHeuristicUnrollFactor(), llvm::TargetTransformInfoWrapperPass::getTTI(), and llvm::AMDGPUUnifyDivergentExitNodesPass::run().

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

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