class SampleProfileProber

Declaration

class SampleProfileProber { /* full declaration omitted */ };

Description

Sample profile pseudo prober. Insert pseudo probes for block sampling and value sampling.

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:101

Member Variables

private llvm::Function* F

private std::string CurModuleUniqueId

The current module ID that is used to name a static object as a comdat group.

private uint64_t FunctionHash

A CFG hash code used to identify a function code changes.

private llvm::BlockIdMap BlockProbeIds

Map basic blocks to the their pseudo probe ids.

private llvm::InstructionIdMap CallProbeIds

Map indirect calls to the their pseudo probe ids.

private uint32_t LastProbeId

The ID of the last probe, Can be used to number a new probe.

Method Overview

• public SampleProfileProber(llvm::Function & F, const std::string & CurModuleUniqueId)
• private void computeCFGHash()
• private void computeProbeIdForBlocks()
• private void computeProbeIdForCallsites()
• private uint32_t getBlockId(const llvm::BasicBlock * BB) const
• private uint32_t getCallsiteId(const llvm::Instruction * Call) const
• private llvm::Function * getFunction() const
• private uint64_t getFunctionHash() const
• public void instrumentOneFunc(llvm::Function & F, llvm::TargetMachine * TM)

Methods

¶SampleProfileProber(
    llvm::Function& F,
    const std::string& CurModuleUniqueId)

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:104

Parameters

llvm::Function& F

const std::string& CurModuleUniqueId

¶void computeCFGHash()

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:112

¶void computeProbeIdForBlocks()

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:113

¶void computeProbeIdForCallsites()

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:114

¶uint32_t getBlockId(
    const llvm::BasicBlock* BB) const

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:110

Parameters

const llvm::BasicBlock* BB

¶uint32_t getCallsiteId(
    const llvm::Instruction* Call) const

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:111

Parameters

const llvm::Instruction* Call

¶llvm::Function* getFunction() const

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:108

¶uint64_t getFunctionHash() const

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:109

¶void instrumentOneFunc(llvm::Function& F,
                       llvm::TargetMachine* TM)

Declared at: llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h:105

Parameters

llvm::Function& F

llvm::TargetMachine* TM