|
LLVM 19.0.0git
|
The function importer is automatically importing function from other modules based on the provided summary informations. More...
#include "llvm/Transforms/IPO/FunctionImport.h"
Classes | |
| struct | ImportFailureInfo |
| Information optionally tracked for candidates the importer decided not to import. More... | |
Public Types | |
| enum | ImportFailureReason { None , GlobalVar , NotLive , TooLarge , InterposableLinkage , LocalLinkageNotInModule , NotEligible , NoInline } |
| The different reasons selectCallee will chose not to import a candidate. More... | |
| using | FunctionsToImportTy = DenseMap< GlobalValue::GUID, GlobalValueSummary::ImportKind > |
| The functions to import from a source module and their import type. | |
| using | ImportThresholdsTy = DenseMap< GlobalValue::GUID, std::tuple< unsigned, const GlobalValueSummary *, std::unique_ptr< ImportFailureInfo > > > |
| Map of callee GUID considered for import into a given module to a pair consisting of the largest threshold applied when deciding whether to import it and, if we decided to import, a pointer to the summary instance imported. | |
| using | ImportMapTy = DenseMap< StringRef, FunctionsToImportTy > |
| The map contains an entry for every module to import from, the key being the module identifier to pass to the ModuleLoader. | |
| using | ExportSetTy = DenseMap< ValueInfo, GlobalValueSummary::ImportKind > |
| The map contains an entry for every global value the module exports. | |
| using | ModuleLoaderTy = std::function< Expected< std::unique_ptr< Module > >(StringRef Identifier)> |
| A function of this type is used to load modules referenced by the index. | |
Public Member Functions | |
| FunctionImporter (const ModuleSummaryIndex &Index, ModuleLoaderTy ModuleLoader, bool ClearDSOLocalOnDeclarations) | |
| Create a Function Importer. | |
| Expected< bool > | importFunctions (Module &M, const ImportMapTy &ImportList) |
Import functions in Module M based on the supplied import list. | |
The function importer is automatically importing function from other modules based on the provided summary informations.
Definition at line 32 of file FunctionImport.h.
The map contains an entry for every global value the module exports.
The key is ValueInfo, and the value indicates whether the definition or declaration is visible to another module. If a function's definition is visible to other modules, the global values this function referenced are visible and shouldn't be internalized. TODO: Rename to ExportMapTy.
Definition at line 108 of file FunctionImport.h.
| using llvm::FunctionImporter::FunctionsToImportTy = DenseMap<GlobalValue::GUID, GlobalValueSummary::ImportKind> |
The functions to import from a source module and their import type.
Definition at line 35 of file FunctionImport.h.
The map contains an entry for every module to import from, the key being the module identifier to pass to the ModuleLoader.
The value is the set of functions to import. The module identifier strings must be owned elsewhere, typically by the in-memory ModuleSummaryIndex the importing decisions are made from (the module path for each summary is owned by the index's module path string table).
Definition at line 100 of file FunctionImport.h.
| using llvm::FunctionImporter::ImportThresholdsTy = DenseMap<GlobalValue::GUID, std::tuple<unsigned, const GlobalValueSummary *, std::unique_ptr<ImportFailureInfo> >> |
Map of callee GUID considered for import into a given module to a pair consisting of the largest threshold applied when deciding whether to import it and, if we decided to import, a pointer to the summary instance imported.
If we decided not to import, the summary will be nullptr.
Definition at line 89 of file FunctionImport.h.
| using llvm::FunctionImporter::ModuleLoaderTy = std::function<Expected<std::unique_ptr<Module> >(StringRef Identifier)> |
A function of this type is used to load modules referenced by the index.
Definition at line 111 of file FunctionImport.h.
The different reasons selectCallee will chose not to import a candidate.
| Enumerator | |
|---|---|
| None | |
| GlobalVar | |
| NotLive | |
| TooLarge | |
| InterposableLinkage | |
| LocalLinkageNotInModule | |
| NotEligible | |
| NoInline | |
Definition at line 40 of file FunctionImport.h.
|
inline |
Create a Function Importer.
Definition at line 115 of file FunctionImport.h.
| Expected< bool > FunctionImporter::importFunctions | ( | Module & | M, |
| const ImportMapTy & | ImportList | ||
| ) |
Import functions in Module M based on the supplied import list.
Definition at line 1716 of file FunctionImport.cpp.
References assert(), llvm::createStringError(), llvm::dbgs(), llvm::GlobalValueSummary::Definition, EnableImportMetadata, llvm::EnableMemProfContextDisambiguation, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), F, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::MDNode::get(), llvm::GlobalValue::getAliaseeObject(), llvm::SetVector< T, Vector, Set, N >::getArrayRef(), llvm::Module::getContext(), llvm::GlobalValue::getGUID(), llvm::Module::getModuleIdentifier(), llvm::Value::getName(), llvm::Module::getSourceFileName(), llvm::SetVector< T, Vector, Set, N >::insert(), internalizeGVsAfterImport(), llvm::invalid_argument, LLVM_DEBUG, llvm::GlobalValue::materialize(), llvm::IRMover::move(), Name, PrintImports, llvm::renameModuleForThinLTO(), replaceAliasWithAliasee(), llvm::SetVector< T, Vector, Set, N >::size(), llvm::Expected< T >::takeError(), llvm::dwarf::toString(), and llvm::UpgradeDebugInfo().
Referenced by doImportingForModuleForTest(), and llvm::lto::thinBackend().
1.9.6