llvm functionanalysismanager

This routine allows cleaning up when the set of functions itself has potentially changed, and thus we can't even look up a a result and invalidate it directly. anyway, you can call its run () until that becomes a performance problem ;) - arnt Much like the function simplification pipeline above, it is suitable to run repeatedly over the IR and is not expected to destroy important information. your pass inherits PassInfoMixin), then your own run () receives the FunctionAnalysisManager as an argument. runOnBasicBlock (BB); } Parse a textual pass pipeline description into a ModulePassManager. References llvm::PassManager< IRUnitT, AnalysisManagerT, ExtraArgTs >::addPass(), buildFunctionSimplificationPipeline(), llvm::createModuleToFunctionPassAdaptor(), llvm::createModuleToPostOrderCGSCCPassAdaptor(), llvm::PipelineTuningOptions::EagerlyInvalidateAnalyses, EnablePGOInlineDeferral, getInlineParamsFromOptLevel(), MPM, llvm::OptimizationLevel::O0, Phase, llvm::PGOOptions::SampleUse, llvm::ThinLTOPreLink, and UseInlineAdvisor. the only case that might regress is recursive functions since when visiting the recursive calls Callers can still manually register any additional analyses. D119342 moves slightly closer to removing SizeLevel from the pass pipeline setup. Like clear(IRUnitT&), this doesn't invalidate the results; it simply deletes them. Construct the module pipeline that performs inlining with module inliner pass. Definition at line 746 of file IR/PassManager.h. References llvm::ModuleInlinerWrapperPass::addModulePass(), llvm::PassManager< IRUnitT, AnalysisManagerT, ExtraArgTs >::addPass(), llvm::AttributorRun, buildFunctionSimplificationPipeline(), llvm::CGSCC, llvm::CGSCCInliner, llvm::createCGSCCToFunctionPassAdaptor(), llvm::createModuleToFunctionPassAdaptor(), llvm::PipelineTuningOptions::EagerlyInvalidateAnalyses, EnableNoRerunSimplificationPipeline, EnablePGOInlineDeferral, llvm::getInlineParams(), getInlineParamsFromOptLevel(), llvm::PipelineTuningOptions::InlinerThreshold, llvm::MaxDevirtIterations, llvm::OptimizationLevel::O0, llvm::OptimizationLevel::O2, llvm::OptimizationLevel::O3, PerformMandatoryInliningsFirst, Phase, llvm::PGOOptions::SampleUse, llvm::ThinLTOPreLink, and UseInlineAdvisor. Mesa (main): gallivm: Fix LLVM optimization with the new pass manager. It is compiled from different sources referenced in the tutorial. - GitHub - alexjung/Writing-an-LLVM-Pass-using-the-new-PassManager: This is a tutorial on how to write an LLVM Pass using the (kind-of) new PassManager. Get the result of an analysis pass for this module. 25 template class OuterAnalysisManagerProxy<FunctionAnalysisManager, Loop, 26 LoopStandardAnalysisResults &>; 27 Get the cached result of an analysis pass for a given IR unit. Definition at line 721 of file PassBuilderPipelines.cpp. These passes will be inserted after each instance of the instruction combiner pass. Verify that the given Result cannot be invalidated, assert otherwise. Register an analysis pass with the manager. It is useful when the IR is being removed and we want to clear out all the memory pinned for it. More #include "llvm/Analysis/CGSCCPassManager.h". 1.8.6 [prev in list] [next in list] [prev in thread] [next in thread] List: llvm-commits Subject: [PATCH] D129368: [mlir][OpenMP] Lower simd if clause to LLVM IR From: Michael Kruse via Phabricator via llvm-commits <llvm-commits lists ! It is suitable to run repeatedly over the IR and is not expected to destroy important information about the semantics of the IR. Registers all available CGSCC analysis passes. References llvm::formatv(), llvm::StringRef::front(), llvm::inconvertibleErrorCode(), and isFunctionPassName(). It works to minimize the IR which needs to be analyzed without making irreversible decisions which could be made better during the LTO run. Construct the core LLVM module canonicalization and simplification pipeline. Instead, this layer is only responsible for . Automatic deduction of an appropriate pass manager stack is not supported. However, trying to compile with clang++, I get several errors. Walk through all of the analyses pertaining to this unit of IR and invalidate them, unless they are preserved by the PreservedAnalyses set. Invalidate cached analyses for an IR unit. If frontends require some transformations for semantic reasons, they should explicitly build them. Get the cached . Definition at line 542 of file PassBuilder.h. This adds the pre-link optimizations tuned to prepare a module for a ThinLTO run. References EnableGlobalAnalyses, and llvm::TargetMachine::registerDefaultAliasAnalyses(). The pipelines produced are only intended for use when attempting to optimize code. if I run opt -O2 go_back.bc -o go_back_o2.bc then I get a new module where the (single) function go_back is optimized. A function analysis manager to coordinate and cache analyses run over a module. Callers can still manually register any additional analyses. Referenced by buildPerModuleDefaultPipeline(), and buildThinLTODefaultPipeline(). Referenced by incorporateNewSCCRange(), llvm::FunctionAnalysisManagerCGSCCProxy::Result::invalidate(), llvm::MLInlineAdvisor::onSuccessfulInlining(), llvm::IRCEPass::run(), llvm::GlobalOptPass::run(), llvm::ArgumentPromotionPass::run(), llvm::PostOrderFunctionAttrsPass::run(), llvm::PassManager< LazyCallGraph::SCC, CGSCCAnalysisManager, LazyCallGraph &, CGSCCUpdateResult & >::run(), llvm::ModuleToPostOrderCGSCCPassAdaptor::run(), llvm::FunctionToLoopPassAdaptor::run(), llvm::CGSCCToFunctionPassAdaptor::run(), llvm::DevirtSCCRepeatedPass::run(), llvm::ModuleToFunctionPassAdaptor::run(), llvm::PassManager< Loop, LoopAnalysisManager, LoopStandardAnalysisResults &, LPMUpdater & >::runWithLoopNestPasses(), llvm::PassManager< Loop, LoopAnalysisManager, LoopStandardAnalysisResults &, LPMUpdater & >::runWithoutLoopNestPasses(), and updateNewSCCFunctionAnalyses(). It typically correspond to frontend "-O[123]" options for optimization levels O1, O2 and O3 resp. Feb 10 2022, 7:46 AM. llvm::PassBuilder & passBuilder() Returns a reference to the pass builder. Definition at line 82 of file MachinePassManager.h. #ifndef LLVM_ANALYSIS_STACKSAFETYANALYSIS_H: 14: #define LLVM_ANALYSIS_STACKSAFETYANALYSIS_H: 15: 16: #include "llvm/IR/ModuleSummaryIndex.h" 17: #include "llvm/IR/PassManager.h" 18: #include "llvm/Pass.h" 19: 20: namespace llvm {21: 22: class AllocaInst; 23: class ScalarEvolution; 24: 25 /// Interface to access stack safety analysis results . Build an ThinLTO default optimization pipeline to a pass manager. C++ source code API documentation for LLVM. Construct the module pipeline that performs inlining as well as the inlining-driven cleanups. Transform passes can use (or invalidate) the analysis passes. The format of the textual pass pipeline description looks something like: module(function(instcombine,sroa),dce,cgscc(inliner,function()),). Definition at line 482 of file PassBuilder.h. This extension point allows adding optimization once at the start of the pipeline. Definition at line 389 of file PassBuilder.h. static bool isRequired () { return true; } }; This lets you clean up the AnalysisManager when the set of IR units itself has potentially changed, and thus we can't even look up a a result and invalidate/clear it directly. This is done with the loadModuleFromFile and loadmoduleFromBuffer obviously. With C pointer size = 64 bit and i, j variables with 32-bit size. j: Next unread message ; k: Previous unread message ; j a: Jump to all threads ; j l: Jump to MailingList overview This extension point allows adding late loop canonicalization and simplification passes. With C pointer size = 64 bit and i, j variables with 32-bit size. Invalidate analyses cached for an IR unit. Add PGOInstrumenation passes for O0 only. tejohnson added a comment. Register an analysis pass with the manager. Definition at line 45 of file MachinePassManager.h. A container for analyses that lazily runs them and caches their results. Invalidate cached analyses for an IR unit. This shortcut is especially useful for debugging and testing small pass combinations. Definition at line 41 of file MachinePassManager.h. Definition at line 803 of file PassBuilderPipelines.cpp. Note that Level cannot be O0 here. Let's start by creating them: llvm::PassBuilder passBuilder; llvm::LoopAnalysisManager loopAnalysisManager (true); // true is just to output debug info llvm::FunctionAnalysisManager functionAnalysisManager (true); llvm::CGSCCAnalysisManager . Definition at line 733 of file IR/PassManager.h. When a module pass runs and triggers invalidation, both the CGSCC and Function analysis manager proxies on the module get an invalidation event. Definition at line 527 of file PassBuilder.h. However, I fixed this by pointing the IDE to the include directory inside the LLVM build directory. Passes perform the transformations and optimizations that make up the compiler, they build the analysis results that are used by these transformations, and they are, above all, a structuring . This allows passing in a lambda to construct the analysis. It works to minimize the IR which needs to be analyzed without making irreversible decisions which could be made better during the LTO run. This routine just provides the textual mapping between AA names and the analyses to register with the manager. Definition at line 108 of file PassManager.cpp. This extension point allows adding loop passes to the end of the loop optimizer. Referenced by llvm::MachineFunctionPassManager::run(). Callers can still manually register any additional analyses. Loop analyses are allowed to make some simplifying assumptions: 1) Loops are, where possible, in simplified form. Definition at line 36 of file PassManagerImpl.h. The analysis type to register is the type returned by calling the PassBuilder argument. More. References llvm::PassManager< IRUnitT, AnalysisManagerT, ExtraArgTs >::addPass(), addPGOInstrPassesForO0(), assert(), llvm::createFunctionToLoopPassAdaptor(), llvm::createModuleToFunctionPassAdaptor(), llvm::createModuleToPostOrderCGSCCPassAdaptor(), llvm::EnableMatrix, llvm::PGOOptions::IRInstr, llvm::PGOOptions::IRUse, llvm::PassManager< Loop, LoopAnalysisManager, LoopStandardAnalysisResults &, LPMUpdater & >::isEmpty(), llvm::PassManager< IRUnitT, AnalysisManagerT, ExtraArgTs >::isEmpty(), llvm::PipelineTuningOptions::MergeFunctions, move, MPM, and llvm::OptimizationLevel::O0. This extension point allows adding passes that perform peephole optimizations similar to the instruction combiner. llvm::PreservedAnalyses::none () : llvm::PreservedAnalyses::all ()); } bool LegacyMBASub::runOnFunction (llvm::Function &F) { bool Changed = false; for ( auto &BB : F) { Changed |= Impl. . Actions This is a long pipeline and uses most of the per-function optimization passes in LLVM to canonicalize and simplify the IR. Returns false if the text cannot be parsed cleanly. Note that clang -O0 decorates // all functions with optnone. Gets the name of the pass we are mixed into. Definition at line 1719 of file PassBuilder.cpp. Get the result of an analysis pass for a given IR unit. Definition at line 1648 of file PassBuilder.cpp. References assert(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::empty(). See the AAManaager documentation for details about the logic used. We work with the module's FunctionAnalysisManager to invalidate function analyses. Definition at line 423 of file PassBuilder.h. blob . Otherwise, we register the analysis returned by calling PassBuilder(), and this function returns true. Runs the analysis if a cached result is not available. Definition at line 765 of file PassManager.h. API to communicate dependencies between analyses during invalidation. References addAnnotationRemarksPass(), llvm::PassManager< IRUnitT, AnalysisManagerT, ExtraArgTs >::addPass(), assert(), buildModuleOptimizationPipeline(), buildModuleSimplificationPipeline(), llvm::createModuleToFunctionPassAdaptor(), llvm::FullLTOPreLink, MPM, llvm::None, llvm::OptimizationLevel::O0, and llvm::PGOOptions::SampleUse. The sequence of passes aren't necessarily the exact same kind of pass. Basically, just pass the flags -mllvm --rotation-max-header-size=0 to ld.lld when compiling with -Oz. bool llvm::runPassPipeline(StringRef Arg0, LLVMContext &Context, Module &M, tool_output_file *Out, StringRef PassPipeline, OutputKind OK, VerifierKind VK) { FunctionAnalysisManager FAM; ModuleAnalysisManager MAM; // FIXME: Lift this registration of analysis passes into a .def file adjacent // to the one used to associate names with passes. ===== The LLVM pass framework is an important part of the LLVM system, because LLVM passes are where most of the interesting parts of the compiler exist. More #include "llvm/CodeGen/MachinePassManager.h". llvm::FunctionAnalysisManager &) { bool Changed = false; for ( auto &BB : F) { Changed |= runOnBasicBlock (BB); } return (Changed ? This pipeline uses only one pass manager: the top-level module manager. References llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getResult(), M, and MAM. The documentation for this class was generated from the following files: This pipeline focuses on canonicalizing and simplifying the entire module of IR. More. Register an analysis pass with the manager. References llvm::PassManager< Loop, LoopAnalysisManager, LoopStandardAnalysisResults &, LPMUpdater & >::addPass(), llvm::PassManager< IRUnitT, AnalysisManagerT, ExtraArgTs >::addPass(), llvm::PipelineTuningOptions::CallGraphProfile, llvm::createFunctionToLoopPassAdaptor(), llvm::createModuleToFunctionPassAdaptor(), llvm::PGOOptions::CSIRInstr, llvm::PGOOptions::CSIRUse, llvm::PipelineTuningOptions::EagerlyInvalidateAnalyses, llvm::EnableHotColdSplit, llvm::EnableIROutliner, llvm::EnableMatrix, llvm::EnableOrderFileInstrumentation, llvm::FullLTOPreLink, llvm::PipelineTuningOptions::MergeFunctions, move, MPM, llvm::OptimizationLevel::Oz, llvm::RunPartialInlining, and llvm::ThinLTOPreLink. Construct the core LLVM module optimization pipeline. Definition at line 519 of file PassBuilder.h. /Users/buildslave/jenkins/workspace/coverage/llvm-project/llvm/lib/IR/Dominators.cpp Notably, this does not call invalidate functions as there is nothing to be done for them. Definition at line 1356 of file PassBuilderPipelines.cpp. Definition at line 394 of file PassBuilder.cpp. Definition at line 745 of file PassManager.h. Referenced by llvm::OpenMPIRBuilder::applySimd(), computeHeuristicUnrollFactor(), llvm::PassBuilder::crossRegisterProxies(), eliminateDeadCode(), llvm::PreservedCFGCheckerInstrumentation::registerCallbacks(), llvm::CodeGenPassBuilder< DerivedT >::registerFunctionAnalyses(), llvm::PassBuilder::registerFunctionAnalyses(), llvm::DirectXTargetMachine::registerPassBuilderCallbacks(), llvm::AMDGPUTargetMachine::registerPassBuilderCallbacks(), and runNewPMPasses(). Referenced by buildModuleSimplificationPipeline(). [ThinLTO/FullLTO] Support Os and Oz. Definition at line 464 of file PassBuilder.h. Referenced by llvm::HexagonTargetMachine::registerPassBuilderCallbacks(). Generated on Mon Aug 17 2015 14:44:47 for LLVM by Referenced by llvm::orc::BlockFreqQuery::operator()(). Cross register the analysis managers through their proxies. ; We use the explicit analysisManager to get the analysis passes we require, rather than using the getAnalysis that the old pass manager used to get at these. Parse a textual alias analysis pipeline into the provided AA manager. Clear the function analysis result cache. Inheritance diagram for llvm::MachineFunctionAnalysisManager: Collaboration diagram for llvm::MachineFunctionAnalysisManager: llvm::MachineFunctionAnalysisManager::Base, llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getCachedResult(), llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getResult(), llvm::CodeGenPassBuilder< DerivedT >::registerAnalyses(), Get the cached result of an analysis pass for a. References buildDefaultAAPipeline(), FAM, and llvm::AnalysisManager< IRUnitT, ExtraArgTs >::registerPass(). This is an interface that can be used to populate a LoopAnalysisManager with all registered loop analyses. Definition at line 392 of file CGSCCPassManager.h. This is a long pipeline and uses most of the per-function optimization passes in LLVM to canonicalize and simplify the IR. Returns true if the analysis manager has an empty results cache. External libraries can use this to register pass instrumentation callbacks. A struct to capture parsed pass pipeline names. 2) Loops are always in LCSSA form. The specific state of the AA manager is unspecified if such an error is encountered and this returns false. This class provides access to building LLVM's passes. Callers can also pre-register analyses and this will not override those. Register a callback for a default optimizer pipeline extension point. This does not apply to 'backend' compiles (LTO and ThinLTO link-time pipelines). Definition at line 403 of file PassBuilder.h. References llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getCachedResult(), M, and MAM. Referenced by llvm::DirectXTargetMachine::registerPassBuilderCallbacks(), and llvm::AMDGPUTargetMachine::registerPassBuilderCallbacks(). Definition at line 99 of file MachinePassManager.h. References addAnnotationRemarksPass(), llvm::PassManager< IRUnitT, AnalysisManagerT, ExtraArgTs >::addPass(), assert(), buildModuleSimplificationPipeline(), llvm::createModuleToFunctionPassAdaptor(), MPM, llvm::OptimizationLevel::O0, llvm::RunPartialInlining, llvm::PGOOptions::SampleUse, and llvm::ThinLTOPreLink. Definition at line 1774 of file PassBuilderPipelines.cpp. This is the complete list of members for llvm::FunctionAnalysisManager, including all inherited members. Returns true if the analysis manager has an empty results cache. Build the default AAManager with the default alias analysis pipeline registered. Clear any cached analysis results for a single unit of IR. Definition at line 66 of file MachinePassManager.h. When -analyze is specified, opt performs various analyses of the . Definition at line 750 of file IR/PassManager.h. Referenced by parseAAPipeline(), and registerFunctionAnalyses(). Definition at line 1623 of file PassBuilder.cpp. Inheritance diagram for llvm::FunctionAnalysisManagerCGSCCProxy: Collaboration diagram for llvm::FunctionAnalysisManagerCGSCCProxy: llvm::PassInfoMixin< FunctionAnalysisManagerCGSCCProxy >, llvm::AnalysisInfoMixin< FunctionAnalysisManagerCGSCCProxy >, FunctionAnalysisManagerCGSCCProxy::Result, llvm::AnalysisManager< IRUnitT, ExtraArgTs >::getResult(). (Note: Although the return value of this function indicates whether or not an analysis was previously registered, there intentionally isn't a way to query this directly. Get the result of an analysis pass for a Module. These are typically used as part of a loop pass pipeline over the loop nests of a function.

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