#include "llvm/ADT/Optional.h"#include "llvm/ADT/SmallSet.h"#include "llvm/ADT/SmallVector.h"#include "llvm/ADT/StringMap.h"#include "llvm/ADT/StringRef.h"#include "llvm/CodeGen/BasicBlockSectionUtils.h"#include "llvm/CodeGen/MachineFunction.h"#include "llvm/CodeGen/MachineFunctionPass.h"#include "llvm/CodeGen/Passes.h"#include "llvm/CodeGen/TargetInstrInfo.h"#include "llvm/InitializePasses.h"#include "llvm/Support/Error.h"#include "llvm/Support/LineIterator.h"#include "llvm/Support/MemoryBuffer.h"#include "llvm/Target/TargetMachine.h"
Go to the source code of this file.
Functions | |
| INITIALIZE_PASS (BasicBlockSections, "bbsections-prepare", "Prepares for basic block sections, by splitting functions " "into clusters of basic blocks.", false, false) static void updateBranches(MachineFunction &MF | |
| for (auto &MBB :MF) | |
| static bool | getBBClusterInfoForFunction (const MachineFunction &MF, const StringMap< StringRef > FuncAliasMap, const ProgramBBClusterInfoMapTy &ProgramBBClusterInfo, std::vector< Optional< BBClusterInfo >> &V) |
| static void | assignSections (MachineFunction &MF, const std::vector< Optional< BBClusterInfo >> &FuncBBClusterInfo) |
| static bool | avoidZeroOffsetLandingPad (MachineFunction &MF) |
| static bool | hasInstrProfHashMismatch (MachineFunction &MF) |
| static Error | getBBClusterInfo (const MemoryBuffer *MBuf, ProgramBBClusterInfoMapTy &ProgramBBClusterInfo, StringMap< StringRef > &FuncAliasMap) |
Variables | |
| cl::opt< bool > | BBSectionsDetectSourceDrift ("bbsections-detect-source-drift", cl::desc("This checks if there is a fdo instr. profile hash " "mismatch for this function"), cl::init(true), cl::Hidden) |
| const SmallVector< MachineBasicBlock *, 4 > & | PreLayoutFallThroughs |
| SmallVector< MachineOperand, 4 > | Cond |
Function Documentation
◆ assignSections()
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static |
Definition at line 249 of file BasicBlockSections.cpp.
References llvm::All, assert(), llvm::MBBSectionID::ColdSectionID, llvm::MBBSectionID::ExceptionSectionID, llvm::MachineBasicBlock::getNumber(), llvm::MachineBasicBlock::getSectionID(), llvm::Optional< T >::getValue(), llvm::MachineFunction::hasBBSections(), llvm::Optional< T >::hasValue(), llvm::MachineBasicBlock::isEHPad(), MBB, and llvm::MachineBasicBlock::setSectionID().
◆ avoidZeroOffsetLandingPad()
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static |
Definition at line 317 of file BasicBlockSections.cpp.
References llvm::MachineBasicBlock::begin(), llvm::BuildMI(), llvm::MDNode::get(), llvm::MachineBasicBlock::isBeginSection(), llvm::MachineBasicBlock::isEHPad(), MBB, MI, and llvm::WebAssembly::Nop.
◆ for()
| for | ( | auto &MBB :MF | ) |
Definition at line 179 of file BasicBlockSections.cpp.
References llvm::HexagonInstrInfo::analyzeBranch(), Cond, llvm::MachineBasicBlock::findBranchDebugLoc(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getNumber(), llvm::MachineBasicBlock::isEndSection(), MBB, PreLayoutFallThroughs, TII, and llvm::MachineBasicBlock::updateTerminator().
◆ getBBClusterInfo()
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static |
Definition at line 442 of file BasicBlockSections.cpp.
References assert(), llvm::SmallSet< T, N, C >::clear(), llvm::getAsUnsignedInteger(), llvm::MemoryBuffer::getBufferIdentifier(), i, llvm::inconvertibleErrorCode(), llvm::SmallSet< T, N, C >::insert(), llvm::line_iterator::is_at_eof(), llvm::line_iterator::line_number(), S, llvm::Error::success(), and llvm::StringMap< ValueTy, AllocatorTy >::try_emplace().
◆ getBBClusterInfoForFunction()
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static |
Definition at line 208 of file BasicBlockSections.cpp.
References llvm::StringMap< ValueTy, AllocatorTy >::end(), llvm::StringMap< ValueTy, AllocatorTy >::find(), llvm::MachineFunction::getName(), llvm::MachineFunction::getNumBlockIDs(), and P.
◆ hasInstrProfHashMismatch()
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static |
Definition at line 337 of file BasicBlockSections.cpp.
References BBSectionsDetectSourceDrift, llvm::MachineFunction::getFunction(), llvm::GlobalObject::getMetadata(), N, and llvm::MDNode::operands().
◆ INITIALIZE_PASS()
| INITIALIZE_PASS | ( | BasicBlockSections | , |
| "bbsections-prepare" | , | ||
| "Prepares for basic block | sections, | ||
| by splitting functions " "into clusters of basic blocks." | , | ||
| false | , | ||
| false | |||
| ) | & |
Variable Documentation
◆ BBSectionsDetectSourceDrift
| cl::opt<bool> BBSectionsDetectSourceDrift("bbsections-detect-source-drift", cl::desc("This checks if there is a fdo instr. profile hash " "mismatch for this function"), cl::init(true), cl::Hidden) |
Referenced by hasInstrProfHashMismatch().
◆ Cond
| SmallVector<MachineOperand, 4> Cond |
Definition at line 178 of file BasicBlockSections.cpp.
Referenced by addConditions(), llvm::addPredicatedMveVpredNOp(), llvm::addPredicatedMveVpredROp(), AlmostDeadIV(), llvm::SPIRVInstrInfo::analyzeBranch(), llvm::BPFInstrInfo::analyzeBranch(), llvm::XCoreInstrInfo::analyzeBranch(), llvm::ARCInstrInfo::analyzeBranch(), llvm::NVPTXInstrInfo::analyzeBranch(), llvm::WebAssemblyInstrInfo::analyzeBranch(), llvm::MSP430InstrInfo::analyzeBranch(), llvm::CSKYInstrInfo::analyzeBranch(), llvm::MipsInstrInfo::analyzeBranch(), llvm::VEInstrInfo::analyzeBranch(), llvm::SparcInstrInfo::analyzeBranch(), llvm::RISCVInstrInfo::analyzeBranch(), llvm::AVRInstrInfo::analyzeBranch(), llvm::HexagonInstrInfo::analyzeBranch(), llvm::ARMBaseInstrInfo::analyzeBranch(), llvm::R600InstrInfo::analyzeBranch(), llvm::AArch64InstrInfo::analyzeBranch(), llvm::SystemZInstrInfo::analyzeBranch(), llvm::M68kInstrInfo::analyzeBranch(), llvm::SIInstrInfo::analyzeBranch(), llvm::X86InstrInfo::analyzeBranch(), llvm::PPCInstrInfo::analyzeBranch(), llvm::M68kInstrInfo::AnalyzeBranchImpl(), llvm::SIInstrInfo::analyzeBranchImpl(), llvm::X86InstrInfo::analyzeBranchPredicate(), llvm::analyzeICmp(), llvm::LanaiInstrInfo::analyzeSelect(), llvm::ARMBaseInstrInfo::analyzeSelect(), llvm::ScalarEvolution::applyLoopGuards(), llvm::ARMTargetLowering::ARMTargetLowering(), llvm::CanonicalLoopInfo::assertOK(), buildNonAtomicBinOp(), buildPartialInvariantUnswitchConditionalBranch(), buildPartialUnswitchConditionalBranch(), llvm::calculateUpperBound(), llvm::AArch64InstrInfo::canInsertSelect(), llvm::SIInstrInfo::canInsertSelect(), llvm::X86InstrInfo::canInsertSelect(), llvm::PPCInstrInfo::canInsertSelect(), CanProveNotTakenFirstIteration(), llvm::MachineBasicBlock::canSplitCriticalEdge(), llvm::canSplitLoopBound(), carryFlagToValue(), checkBoolTestAndOrSetCCCombine(), checkDecodedInstruction(), combineBrCond(), combineCMov(), combineM68kBrCond(), combineSelect(), combineSelectOfTwoConstants(), combineSubABS(), combineVSelectToBLENDV(), combineVSelectWithAllOnesOrZeros(), llvm::JumpThreadingPass::computeValueKnownInPredecessorsImpl(), ConditionalExpr::ConditionalExpr(), llvm::ConstantFoldSelectInstruction(), llvm::ConstantFoldTerminator(), ConvertSelectToConcatVector(), llvm::BranchInst::Create(), CreateAssert(), CreateAssertNot(), llvm::IRBuilderBase::CreateAssumption(), createCMovFP(), llvm::IRBuilderBase::CreateCondBr(), llvm::PeelingModuloScheduleExpander::CreateLCSSAExitingBlock(), llvm::OpenMPIRBuilder::createLoopSkeleton(), createNodeForSelectViaUMinSeq(), llvm::VPBuilder::createSelect(), createShuffleMaskFromVSELECT(), llvm::parallel::detail::Latch::dec(), DecodeLDR(), dependsOnLocalPhi(), distributeOpThroughSelect(), eliminateDeadSwitchCases(), llvm::SelectionDAGBuilder::EmitBranchForMergedCondition(), llvm::PPCTargetLowering::EmitInstrWithCustomInserter(), GeneratedRTChecks::emitSCEVChecks(), EraseTerminatorAndDCECond(), llvm::VPWidenSelectRecipe::execute(), llvm::VPReductionRecipe::execute(), FindLoopCounter(), llvm::SelectionDAGBuilder::FindMergedConditions(), FindWidenableTerminatorAboveLoop(), FixTail(), llvm::PeelingModuloScheduleExpander::fixupBranches(), llvm::CondOpInit::Fold(), foldADCToCINC(), foldBitCastSelect(), foldBoolSelectToLogic(), llvm::FoldBranchToCommonDest(), FoldCondBranchOnValueKnownInPredecessorImpl(), foldFreeOpFromSelect(), llvm::InstCombinerImpl::foldGEPICmp(), llvm::InstCombinerImpl::foldICmpSelectConstant(), foldMulSelectToNegate(), foldSelectGEP(), foldSelectOfConstantsUsingSra(), llvm::InstCombinerImpl::foldSelectOpOp(), foldSelectWithBinaryOp(), foldSelectWithIdentityConstant(), llvm::SelectionDAG::FoldSetCC(), foldSetCCWithFunnelShift(), foldSetCCWithRotate(), foldSetClearBits(), llvm::InstCombinerImpl::FoldShiftByConstant(), foldXorTruncShiftIntoCmp(), for(), getBBFallenThrough(), getBitTestCondition(), llvm::CanonicalLoopInfo::getBody(), getBranchCondString(), getCmp(), llvm::CanonicalLoopInfo::getCond(), getCondCode(), llvm::SelectionDAG::getCondCode(), llvm::MachineBasicBlock::getFallThrough(), getHashValueImpl(), getIntrinsicCmp(), llvm::HexagonInstrInfo::getInvertedPredSense(), getOnlyLiveSuccessor(), llvm::AMDGPU::getOprIdx(), llvm::HexagonInstrInfo::getPredReg(), getPTest(), llvm::SelectionDAG::getSelect(), llvm::SelectionDAG::getSelectCC(), llvm::SelectionDAG::getSetCC(), getSETCC(), llvm::SelectionDAG::getSetCCVP(), llvm::CanonicalLoopInfo::getTripCount(), llvm::MipsTargetLowering::getTypeForExtReturn(), llvm::ISD::getUnorderedFlavor(), getValueFromCondition(), getValueFromConditionImpl(), getValueOnFirstIteration(), getX86XALUOOp(), handleOtherCmpSelSimplifications(), hasOnlySelectUsers(), llvm::hasProcessableCondition(), llvm::BPFInstrInfo::insertBranch(), llvm::XCoreInstrInfo::insertBranch(), llvm::CSKYInstrInfo::insertBranch(), llvm::ARCInstrInfo::insertBranch(), llvm::NVPTXInstrInfo::insertBranch(), llvm::WebAssemblyInstrInfo::insertBranch(), llvm::MSP430InstrInfo::insertBranch(), llvm::MipsInstrInfo::insertBranch(), llvm::VEInstrInfo::insertBranch(), llvm::SparcInstrInfo::insertBranch(), llvm::RISCVInstrInfo::insertBranch(), llvm::AVRInstrInfo::insertBranch(), llvm::HexagonInstrInfo::insertBranch(), llvm::ARMBaseInstrInfo::insertBranch(), llvm::R600InstrInfo::insertBranch(), llvm::AArch64InstrInfo::insertBranch(), llvm::SystemZInstrInfo::insertBranch(), llvm::M68kInstrInfo::insertBranch(), llvm::SIInstrInfo::insertBranch(), llvm::X86InstrInfo::insertBranch(), llvm::PPCInstrInfo::insertBranch(), llvm::AArch64InstrInfo::insertSelect(), llvm::SIInstrInfo::insertSelect(), llvm::X86InstrInfo::insertSelect(), llvm::PPCInstrInfo::insertSelect(), llvm::SIInstrInfo::insertVectorSelect(), llvm::CanonicalLoopInfo::invalidate(), isGuaranteedNotToBeUndefOrPoison(), llvm::isImpliedByDomCondition(), isLoopNeverExecuted(), llvm::ISD::isTrueWhenEqual(), IsVPNOTEquivalent(), llvm::SPIRVLegalizerInfo::legalizeCustom(), llvm::AMDGPULegalizerInfo::legalizeFrint(), llvm::AMDGPULegalizerInfo::legalizeUnsignedDIV_REM32Impl(), LLVMSetCondition(), llvm::X86TargetLowering::LowerAsmOutputForConstraint(), llvm::LanaiTargetLowering::LowerBR_CC(), LowerBRCOND(), LowerBUILD_VECTORvXi1(), llvm::AMDGPUTargetLowering::LowerFRINT(), llvm::LanaiTargetLowering::LowerSELECT_CC(), llvm::LanaiTargetLowering::LowerSETCC(), LowerSETCCCARRY(), llvm::AMDGPUTargetLowering::LowerUDIVREM(), lowerVSELECTtoVectorShuffle(), LowerVSETCC(), LowerVSETCCWithSUBUS(), LowerXALUO(), ConditionalExpr::match(), llvm::PatternMatch::LogicalOp_match< LHS, RHS, Opcode, Commutable >::match(), matchCondition(), AMDGPUPostLegalizerCombinerHelper::matchFMinFMaxLegacy(), llvm::CombinerHelper::matchSelectToLogical(), matchSelectWithOptionalNotCond(), llvm::JumpThreadingPass::maybethreadThroughTwoBasicBlocks(), llvm::MSP430TargetLowering::MSP430TargetLowering(), narrowVectorSelect(), needsLFTR(), parseCC(), parseCond(), parseCondBranch(), parseConstraintCode(), AbstractManglingParser< ManglingParser< Alloc >, Alloc >::parseExpr(), llvm::parseWidenableBranch(), llvm::PeelSingleBlockLoop(), llvm::ARMTargetLowering::PerformCMOVCombine(), PerformCMPZCombine(), PerformCSETCombine(), llvm::AMDGPUTargetLowering::performCtlz_CttzCombine(), llvm::HexagonTargetLowering::PerformDAGCombine(), llvm::PPCTargetLowering::PerformDAGCombine(), PerformHWLoopCombine(), performORCombine(), llvm::AMDGPUTargetLowering::performSelectCombine(), performSETCCCombine(), performSetccMergeZeroCombine(), performSetCCPunpkCombine(), PerformVCMPCombine(), PerformVSELECTCombine(), llvm::HexagonInstrInfo::PredicateInstruction(), llvm::HexagonInstrInfo::predOpcodeHasNot(), prepareICWorklistFromFunction(), ConditionalExpr::printLeft(), llvm::JumpThreadingPass::processImpliedCondition(), processSwitch(), llvm::JumpThreadingPass::processThreadableEdges(), recordCondition(), removeUndefIntroducingPredecessor(), replaceFoldableUses(), llvm::MSP430InstrInfo::reverseBranchCondition(), llvm::WebAssemblyInstrInfo::reverseBranchCondition(), llvm::CSKYInstrInfo::reverseBranchCondition(), llvm::MipsInstrInfo::reverseBranchCondition(), llvm::VEInstrInfo::reverseBranchCondition(), llvm::XCoreInstrInfo::reverseBranchCondition(), llvm::SparcInstrInfo::reverseBranchCondition(), llvm::ARCInstrInfo::reverseBranchCondition(), llvm::RISCVInstrInfo::reverseBranchCondition(), llvm::AVRInstrInfo::reverseBranchCondition(), llvm::ARMBaseInstrInfo::reverseBranchCondition(), llvm::R600InstrInfo::reverseBranchCondition(), llvm::HexagonInstrInfo::reverseBranchCondition(), llvm::AArch64InstrInfo::reverseBranchCondition(), llvm::SystemZInstrInfo::reverseBranchCondition(), llvm::SIInstrInfo::reverseBranchCondition(), llvm::X86InstrInfo::reverseBranchCondition(), llvm::PPCInstrInfo::reverseBranchCondition(), llvm::RewriteStatepointsForGC::runOnFunction(), simplifyCmpSelCase(), simplifyCmpSelFalseCase(), simplifyCmpSelTrueCase(), SimplifyCondBranchToCondBranch(), simplifyOneLoop(), llvm::SelectionDAG::simplifySelect(), llvm::SimplifySelectInst(), SimplifySelectInst(), llvm::InstCombinerImpl::SimplifySelectsFeedingBinaryOp(), simplifySelectWithFCmp(), llvm::TargetLowering::SimplifySetCC(), simplifySetCCWithCTPOP(), simplifyTerminatorLeadingToRet(), simplifyUsingControlFlow(), skipTrivialSelect(), llvm::SplitBlockAndInsertIfThen(), llvm::SplitBlockAndInsertIfThenElse(), SplitBlockAndInsertIfThenImpl(), llvm::MachineBasicBlock::SplitCriticalEdge(), splitEdge(), splitIntVSETCC(), llvm::splitLoopBound(), llvm::parallel::detail::Latch::sync(), ThreadCmpOverSelect(), transformToIndexedCompare(), trySwitchToSelect(), llvm::JumpThreadingPass::tryToUnfoldSelectInCurrBB(), unswitchBestCondition(), unswitchNontrivialInvariants(), unswitchTrivialBranch(), llvm::MachineBasicBlock::updateTerminator(), llvm::HexagonInstrInfo::validateBranchCond(), llvm::versionCallSite(), llvm::Interpreter::visitBranchInst(), llvm::InstCombinerImpl::visitBranchInst(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitFNeg(), llvm::InstCombinerImpl::visitFPTrunc(), llvm::InstCombinerImpl::visitICmpInst(), llvm::InstCombinerImpl::visitSDiv(), llvm::InstCombinerImpl::visitSub(), llvm::SelectionDAGBuilder::visitSwitchCase(), llvm::Interpreter::visitSwitchInst(), llvm::InstCombinerImpl::visitSwitchInst(), and llvm::wouldInstructionBeTriviallyDead().
◆ PreLayoutFallThroughs
| const SmallVector<MachineBasicBlock *, 4>& PreLayoutFallThroughs |
Definition at line 176 of file BasicBlockSections.cpp.
Referenced by for(), and llvm::sortBasicBlocksAndUpdateBranches().
