class TargetIRAnalysis

Declaration

class TargetIRAnalysis : public AnalysisInfoMixin { /* full declaration omitted */ };

Description

Analysis pass providing the \c 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.

Declared at: llvm/include/llvm/Analysis/TargetTransformInfo.h:1901

Inherits from: AnalysisInfoMixin

Method Overview

• public TargetIRAnalysis()
• public TargetIRAnalysis(std::function<Result (const Function &)> TTICallback)
• public TargetIRAnalysis(const llvm::TargetIRAnalysis & Arg)
• public TargetIRAnalysis(llvm::TargetIRAnalysis && Arg)
• public llvm::TargetIRAnalysis::Result run(const llvm::Function & F, llvm::FunctionAnalysisManager &)

Methods

¶TargetIRAnalysis()

Description

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

Declared at: llvm/include/llvm/Analysis/TargetTransformInfo.h:1909

¶TargetIRAnalysis(
    std::function<Result(const Function&)>
        TTICallback)

Description

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.

Declared at: llvm/include/llvm/Analysis/TargetTransformInfo.h:1915

Parameters

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

¶TargetIRAnalysis(
    const llvm::TargetIRAnalysis& Arg)

Declared at: llvm/include/llvm/Analysis/TargetTransformInfo.h:1918

Parameters

const llvm::TargetIRAnalysis& Arg

¶TargetIRAnalysis(llvm::TargetIRAnalysis&& Arg)

Declared at: llvm/include/llvm/Analysis/TargetTransformInfo.h:1920

Parameters

llvm::TargetIRAnalysis&& Arg

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

Declared at: llvm/include/llvm/Analysis/TargetTransformInfo.h:1931

Parameters

const llvm::Function& F

llvm::FunctionAnalysisManager&