Assign a GUID to functions as metadata. More...

#include "llvm/Analysis/CtxProfAnalysis.h"

Inheritance diagram for llvm::AssignGUIDPass:

Public Member Functions
	AssignGUIDPass ()=default

PreservedAnalyses	run (Module &M, ModuleAnalysisManager &MAM)
	Assign a GUID if one is not already assign, as a function metadata named `GUIDMetadataName`.

Public Member Functions inherited from llvm::PassInfoMixin< AssignGUIDPass >
void	printPipeline (raw_ostream &OS, function_ref< StringRef(StringRef)> MapClassName2PassName)

Static Public Member Functions
static uint64_t	getGUID (const Function &F)

Static Public Member Functions inherited from llvm::PassInfoMixin< AssignGUIDPass >
static StringRef	name ()
	Gets the name of the pass we are mixed into.

Static Public Attributes
static const char *	GUIDMetadataName = "guid"

Detailed Description

Assign a GUID to functions as metadata.

GUID calculation takes linkage into account, which may change especially through and after thinlto. By pre-computing and assigning as metadata, this mechanism is resilient to such changes (as well as name changes e.g. suffix ".llvm." additions).

Definition at line 163 of file CtxProfAnalysis.h.

Constructor & Destructor Documentation

◆ AssignGUIDPass()

llvm::AssignGUIDPass::AssignGUIDPass ( )

explicitdefault

Member Function Documentation

◆ getGUID()

GlobalValue::GUID AssignGUIDPass::getGUID ( const Function & F )

static

Definition at line 94 of file CtxProfAnalysis.cpp.

References assert(), F, llvm::GlobalValue::getGUID(), GUIDMetadataName, and llvm::GlobalValue::isExternalLinkage().

Referenced by llvm::InlineFunction(), llvm::promoteCallWithIfThenElse(), llvm::CtxProfAnalysis::run(), and llvm::PGOCtxProfFlatteningPass::run().

◆ run()

PreservedAnalyses AssignGUIDPass::run	(	Module &	M,
		ModuleAnalysisManager &	MAM
	)

Assign a GUID if one is not already assign, as a function metadata named GUIDMetadataName.

Definition at line 79 of file CtxProfAnalysis.cpp.

References F, llvm::MDNode::get(), GUIDMetadataName, and llvm::PreservedAnalyses::none().

Member Data Documentation

◆ GUIDMetadataName

const char * AssignGUIDPass::GUIDMetadataName = "guid"

static

Definition at line 170 of file CtxProfAnalysis.h.

Referenced by getGUID(), and run().

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

include/llvm/Analysis/CtxProfAnalysis.h
lib/Analysis/CtxProfAnalysis.cpp

Public Member Functions

Static Public Member Functions

Static Public Attributes