Functions | |
| bool | onlyFirstLaneUsed (const VPValue *Def) |
Returns true if only the first lane of Def is used. | |
| bool | onlyFirstPartUsed (const VPValue *Def) |
Returns true if only the first part of Def is used. | |
| bool | onlyScalarValuesUsed (const VPValue *Def) |
Returns true if only scalar values of Def are used by all users. | |
| VPValue * | getOrCreateVPValueForSCEVExpr (VPlan &Plan, const SCEV *Expr) |
Get or create a VPValue that corresponds to the expansion of Expr. | |
| const SCEV * | getSCEVExprForVPValue (const VPValue *V, PredicatedScalarEvolution &PSE, const Loop *L=nullptr) |
Return the SCEV expression for V. | |
| bool | isAddressSCEVForCost (const SCEV *Addr, ScalarEvolution &SE, const Loop *L) |
Returns true if Addr is an address SCEV that can be passed to TTI::getAddressComputationCost, i.e. | |
| bool | isSingleScalar (const VPValue *VPV) |
Returns true if VPV is a single scalar, either because it produces the same value for all lanes or only has its first lane used. | |
| bool | isUniformAcrossVFsAndUFs (const VPValue *V) |
Checks if V is uniform across all VF lanes and UF parts. | |
| bool | isElementwise (const VPValue *V) |
Return true if V is elementwise, i.e. none of the lanes are permuted. | |
| VPBasicBlock * | getFirstLoopHeader (VPlan &Plan, VPDominatorTree &VPDT) |
| Returns the header block of the first, top-level loop, or null if none exist. | |
| unsigned | getVFScaleFactor (VPRecipeBase *R) |
| Get the VF scaling factor applied to the recipe's output, if the recipe has one. | |
| bool | cannotHoistOrSinkRecipe (const VPRecipeBase &R, bool Sinking=false) |
Return true if we do not know how to (mechanically) hoist or sink R. | |
| template<typename Ty> | |
| Intrinsic::ID | getIntrinsicID (const Ty *R) |
| Return the intrinsic ID underlying a call. | |
| std::optional< MemoryLocation > | getMemoryLocation (const VPRecipeBase &R) |
Return a MemoryLocation for R with noalias metadata populated from R, if the recipe is supported and std::nullopt otherwise. | |
| VPIRFlags | getFlagsFromIndDesc (const InductionDescriptor &ID) |
Extracts and returns NoWrap and FastMath flags from the induction binop in ID. | |
| template<typename PredT> | |
| VPRecipeBase * | findRecipe (VPValue *Start, PredT Pred) |
Search Start's users for a recipe satisfying Pred, looking through recipes with definitions. | |
| VPInstruction * | findCanonicalIVIncrement (VPlan &Plan) |
Find the canonical IV increment of Plan's vector loop region. | |
| GEPNoWrapFlags | getGEPFlagsForPtr (VPValue *Ptr) |
Returns the GEP nowrap flags for Ptr, looking through pointer casts mirroring Value::stripPointerCasts. | |
| bool | isUsedByLoadStoreAddress (const VPValue *V) |
Returns true if V is used as part of the address of another load or store. | |
| VPInstruction * | findComputeReductionResult (VPReductionPHIRecipe *PhiR) |
Find the ComputeReductionResult recipe for PhiR, looking through selects inserted for predicated reductions or tail folding. | |
| VPValue * | findIncomingAliasMask (const VPlan &Plan) |
| Finds the incoming alias-mask within the vector preheader. | |
Function Documentation
◆ cannotHoistOrSinkRecipe()
| bool llvm::vputils::cannotHoistOrSinkRecipe | ( | const VPRecipeBase & | R, |
| bool | Sinking = false ) |
Return true if we do not know how to (mechanically) hoist or sink R.
When sinking, passing Sinking = true ensures that assumes aren't sunk. Returns true for recipes that access memory.
Definition at line 510 of file VPlanUtils.cpp.
References llvm::dyn_cast(), llvm::PatternMatch::m_Intrinsic(), and llvm::SCEVPatternMatch::match().
Referenced by cannotHoistOrSinkRecipe(), hoistPreviousBeforeFORUsers(), sinkRecurrenceUsersAfterPrevious(), and sinkScalarOperands().
◆ findCanonicalIVIncrement()
| VPInstruction * llvm::vputils::findCanonicalIVIncrement | ( | VPlan & | Plan | ) |
Find the canonical IV increment of Plan's vector loop region.
Returns nullptr if not found.
Definition at line 603 of file VPlanUtils.cpp.
References assert(), llvm::cast(), llvm::VPRegionBlock::getCanonicalIV(), llvm::VPlan::getConcreteUF(), llvm::VPlan::getUF(), llvm::VPlan::getVectorLoopRegion(), llvm::VPlan::getVFxUF(), llvm::VPRegionBlock::hasCanonicalIVNUW(), llvm::Increment, llvm::isa(), llvm::VPSymbolicValue::isMaterialized(), llvm::isPowerOf2_32(), llvm::Log2_32(), llvm::PatternMatch::m_c_Add(), llvm::PatternMatch::m_c_Mul(), llvm::PatternMatch::m_Shl(), llvm::PatternMatch::m_Specific(), llvm::PatternMatch::m_SpecificInt(), llvm::VPlanPatternMatch::m_VPInstruction(), llvm::VPlanPatternMatch::m_VPValue(), llvm::PatternMatch::m_VScale(), llvm::PatternMatch::m_ZExtOrTruncOrSelf(), llvm::PatternMatch::match(), and llvm::VPValue::users().
Referenced by llvm::VPRegionBlock::getOrCreateCanonicalIVIncrement(), and preparePlanForEpilogueVectorLoop().
◆ findComputeReductionResult()
| VPInstruction * llvm::vputils::findComputeReductionResult | ( | VPReductionPHIRecipe * | PhiR | ) |
Find the ComputeReductionResult recipe for PhiR, looking through selects inserted for predicated reductions or tail folding.
Definition at line 663 of file VPlanUtils.cpp.
References llvm::cast(), llvm::VPlanPatternMatch::findUserOf(), llvm::VPHeaderPHIRecipe::getBackedgeValue(), llvm::PatternMatch::m_Select(), and llvm::VPlanPatternMatch::m_VPValue().
Referenced by llvm::VPlanTransforms::createPartialReductions(), and llvm::VPlanTransforms::handleMaxMinNumReductions().
◆ findIncomingAliasMask()
Finds the incoming alias-mask within the vector preheader.
Definition at line 544 of file VPlanUtils.cpp.
References llvm::cast(), llvm::VPlan::getVectorPreheader(), llvm::VPlanPatternMatch::m_VPInstruction(), and llvm::PatternMatch::match().
Referenced by llvm::VPlanTransforms::materializeAliasMask().
◆ findRecipe()
|
inline |
Search Start's users for a recipe satisfying Pred, looking through recipes with definitions.
Definition at line 133 of file VPlanUtils.h.
References llvm::cast(), llvm::VPValue::getDefiningRecipe(), I, llvm::SetVector< T, Vector, Set, N >::insert(), llvm::SetVector< T, Vector, Set, N >::size(), and llvm::VPValue::users().
Referenced by findFindIVSelect(), llvm::VPlanTransforms::optimizeFindIVReductions(), and preparePlanForEpilogueVectorLoop().
◆ getFirstLoopHeader()
| VPBasicBlock * llvm::vputils::getFirstLoopHeader | ( | VPlan & | Plan, |
| VPDominatorTree & | VPDT ) |
Returns the header block of the first, top-level loop, or null if none exist.
Definition at line 486 of file VPlanUtils.cpp.
References llvm::cast(), llvm::find_if(), llvm::VPlan::getEntry(), I, llvm::VPBlockUtils::isHeader(), and llvm::vp_depth_first_shallow().
Referenced by llvm::LoopVectorizationPlanner::executePlan(), and llvm::InnerLoopVectorizer::fixVectorizedLoop().
◆ getFlagsFromIndDesc()
|
inline |
Extracts and returns NoWrap and FastMath flags from the induction binop in ID.
Definition at line 116 of file VPlanUtils.h.
References assert(), llvm::dyn_cast_if_present(), llvm::InductionDescriptor::IK_FpInduction, and llvm::InductionDescriptor::IK_IntInduction.
Referenced by createWidenInductionRecipe().
◆ getGEPFlagsForPtr()
| GEPNoWrapFlags llvm::vputils::getGEPFlagsForPtr | ( | VPValue * | Ptr | ) |
Returns the GEP nowrap flags for Ptr, looking through pointer casts mirroring Value::stripPointerCasts.
Definition at line 115 of file VPlanUtils.cpp.
References llvm::all_of(), llvm::drop_begin(), llvm::dyn_cast(), llvm::MIPatternMatch::m_ZeroInt(), llvm::PatternMatch::match_fn(), and llvm::GEPNoWrapFlags::none().
Referenced by llvm::VPBuilder::createConsecutiveVectorPointer(), and llvm::VPlanTransforms::makeMemOpWideningDecisions().
◆ getIntrinsicID()
| Intrinsic::ID llvm::vputils::getIntrinsicID | ( | const Ty * | R | ) |
Return the intrinsic ID underlying a call.
Definition at line 81 of file VPlanUtils.h.
References Call, llvm::cast(), llvm::dyn_cast(), F, llvm::VPInstruction::Intrinsic, llvm::isa(), and llvm::Intrinsic::not_intrinsic.
Referenced by llvm::VPInstructionWithType::computeCost(), llvm::VPInstructionWithType::execute(), getOpcodeOrIntrinsicID(), llvm::VPlanPatternMatch::IntrinsicID_match::match(), llvm::VPInstruction::opcodeMayReadOrWriteFromMemory(), and llvm::VPInstructionWithType::printRecipe().
◆ getMemoryLocation()
| std::optional< MemoryLocation > llvm::vputils::getMemoryLocation | ( | const VPRecipeBase & | R | ) |
Return a MemoryLocation for R with noalias metadata populated from R, if the recipe is supported and std::nullopt otherwise.
The pointer of the location is conservatively set to nullptr.
Definition at line 590 of file VPlanUtils.cpp.
References llvm::dyn_cast().
Referenced by cannotHoistOrSinkRecipe(), canSinkStoreWithNoAliasCheck(), and llvm::VPlanTransforms::hoistPredicatedLoads().
◆ getOrCreateVPValueForSCEVExpr()
Get or create a VPValue that corresponds to the expansion of Expr.
If Expr is a SCEVConstant or SCEVUnknown, return a VPValue wrapping the live-in value. Otherwise return a VPExpandSCEVRecipe to expand Expr. If Plan's pre-header already contains a recipe expanding Expr, return it. If not, create a new one.
Definition at line 41 of file VPlanUtils.cpp.
References llvm::dyn_cast(), llvm::VPBasicBlock::end(), llvm::VPlan::getEntry(), llvm::VPBasicBlock::getFirstNonPhi(), llvm::VPlan::getOrAddLiveIn(), llvm::VPBasicBlock::insert(), and llvm::isa().
Referenced by addInitialSkeleton(), llvm::VPlanTransforms::convertToStridedAccesses(), createWidenInductionRecipe(), llvm::VPlanTransforms::materializeAliasMask(), and llvm::VPlanTransforms::replaceSymbolicStrides().
◆ getSCEVExprForVPValue()
| const SCEV * llvm::vputils::getSCEVExprForVPValue | ( | const VPValue * | V, |
| PredicatedScalarEvolution & | PSE, | ||
| const Loop * | L = nullptr ) |
Return the SCEV expression for V.
Returns SCEVCouldNotCompute if no SCEV expression could be constructed.
Definition at line 133 of file VPlanUtils.cpp.
References AbstractManglingParser< Derived, Alloc >::Ops, llvm::any_of(), llvm::ArrayRef(), assert(), llvm::TypeSwitch< T, ResultT >::Case(), llvm::Default, llvm::dyn_cast(), llvm::SCEV::FlagAnyWrap, llvm::SCEV::FlagNSW, llvm::ScalarEvolution::getAbsExpr(), llvm::ScalarEvolution::getAddExpr(), llvm::ScalarEvolution::getAddRecExpr(), llvm::ScalarEvolution::getConstant(), llvm::ScalarEvolution::getCouldNotCompute(), llvm::ScalarEvolution::getGEPExpr(), llvm::ScalarEvolution::getMinusOne(), llvm::ScalarEvolution::getMinusSCEV(), llvm::ScalarEvolution::getMulExpr(), llvm::ScalarEvolution::getOne(), llvm::ScalarEvolution::getPowerOfTwo(), llvm::PredicatedScalarEvolution::getPredicatedSCEV(), getScalarSizeInBits(), llvm::Type::getScalarType(), llvm::ScalarEvolution::getSCEV(), getSCEVExprForVPValue(), llvm::PredicatedScalarEvolution::getSE(), llvm::ScalarEvolution::getSignExtendExpr(), llvm::ScalarEvolution::getSMaxExpr(), llvm::ScalarEvolution::getSMinExpr(), llvm::ScalarEvolution::getTruncateExpr(), llvm::ScalarEvolution::getTruncateOrSignExtend(), llvm::SCEV::getType(), llvm::Value::getType(), llvm::ScalarEvolution::getTypeSizeInBits(), llvm::ScalarEvolution::getUDivExpr(), llvm::ScalarEvolution::getUMaxExpr(), llvm::ScalarEvolution::getUMinExpr(), llvm::ScalarEvolution::getURemExpr(), llvm::ScalarEvolution::getZero(), llvm::ScalarEvolution::getZeroExtendExpr(), llvm::isa(), llvm::IsaPred, llvm::ScalarEvolution::isKnownNonNegative(), llvm::ScalarEvolution::isSCEVable(), IV, llvm::PatternMatch::m_Add(), llvm::PatternMatch::m_APInt(), llvm::VPlanPatternMatch::m_c_BinaryAnd(), llvm::PatternMatch::m_ConstantInt(), llvm::VPlanPatternMatch::m_GetElementPtr(), llvm::PatternMatch::m_Intrinsic(), llvm::PatternMatch::m_LShr(), llvm::PatternMatch::m_Mul(), llvm::MIPatternMatch::m_Not(), llvm::PatternMatch::m_SExt(), llvm::PatternMatch::m_Shl(), llvm::PatternMatch::m_SRem(), llvm::PatternMatch::m_Sub(), llvm::PatternMatch::m_Trunc(), llvm::PatternMatch::m_UDiv(), llvm::PatternMatch::m_URem(), llvm::VPlanPatternMatch::m_VPValue(), llvm::PatternMatch::m_ZExt(), llvm::SCEVPatternMatch::match(), poisonGuaranteesUB(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::V1.
Referenced by llvm::VPlanTransforms::addMinimumIterationCheck(), areAllLoadsDereferenceable(), collectGroupedReplicateMemOps(), llvm::VPlanTransforms::convertToStridedAccesses(), createWidenInductionRecipe(), getAddressAccessSCEV(), getConstantStride(), getOptimizableIVOf(), getSCEVExprForVPValue(), handleUncountableExitsWithSideEffects(), isConditionTrueViaVFAndUF(), llvm::VPlanTransforms::makeMemOpWideningDecisions(), llvm::VPlanTransforms::optimizeFindIVReductions(), llvm::LoopVectorizationPlanner::selectBestEpiloguePlan(), simplifyBranchConditionForVFAndUF(), llvm::VPlanTransforms::simplifyKnownEVL(), and simplifyLiveInsWithSCEV().
◆ getVFScaleFactor()
| unsigned llvm::vputils::getVFScaleFactor | ( | VPRecipeBase * | R | ) |
Get the VF scaling factor applied to the recipe's output, if the recipe has one.
Definition at line 494 of file VPlanUtils.cpp.
References assert(), llvm::cast(), llvm::dyn_cast(), llvm::isa(), and llvm::VPInstruction::ReductionStartVector.
Referenced by llvm::calculateRegisterUsageForPlan().
◆ isAddressSCEVForCost()
| bool llvm::vputils::isAddressSCEVForCost | ( | const SCEV * | Addr, |
| ScalarEvolution & | SE, | ||
| const Loop * | L ) |
Returns true if Addr is an address SCEV that can be passed to TTI::getAddressComputationCost, i.e.
the address SCEV is loop invariant, an affine AddRec (i.e. induction ), or an add expression of such operands or a sign-extended AddRec.
Definition at line 347 of file VPlanUtils.cpp.
References llvm::all_of(), llvm::dyn_cast(), llvm::ScalarEvolution::isLoopInvariant(), llvm::SCEVPatternMatch::m_SCEV(), llvm::SCEVPatternMatch::m_scev_AffineAddRec(), and llvm::SCEVPatternMatch::match().
Referenced by getAddressAccessSCEV(), and getAddressAccessSCEV().
◆ isElementwise()
Return true if V is elementwise, i.e. none of the lanes are permuted.
Definition at line 385 of file VPlanUtils.cpp.
References llvm::TypeSwitch< T, ResultT >::Case(), llvm::Default, llvm::Instruction::isBinaryOp(), and llvm::Instruction::isUnaryOp().
Referenced by pullOutPermutations().
◆ isSingleScalar()
Returns true if VPV is a single scalar, either because it produces the same value for all lanes or only has its first lane used.
Definition at line 394 of file VPlanUtils.cpp.
References llvm::all_of(), llvm::dyn_cast(), llvm::VPValue::getDefiningRecipe(), llvm::isa(), llvm::VPRegionBlock::isReplicator(), isSingleScalar(), llvm::VPUser::operands(), and preservesUniformity().
Referenced by cloneForLane(), llvm::VPWidenMemoryRecipe::computeCost(), convertRecipesInRegionBlocksToSingleScalar(), llvm::VPIRPhi::execute(), llvm::VPWidenGEPRecipe::execute(), llvm::VPWidenRecipe::execute(), llvm::VPTransformState::get(), isSingleScalar(), legalizeAndOptimizeInductions(), llvm::VPlanTransforms::materializePacksAndUnpacks(), narrowToSingleScalarRecipes(), simplifyRecipe(), and llvm::VPWidenGEPRecipe::usesFirstLaneOnly().
◆ isUniformAcrossVFsAndUFs()
Checks if V is uniform across all VF lanes and UF parts.
It is considered as such if it is either loop invariant (defined outside the vector region) or its operands are known to be uniform across all VFs and UFs (e.g. VPDerivedIV or the canonical IV).
Definition at line 433 of file VPlanUtils.cpp.
References llvm::all_of(), llvm::TypeSwitch< T, ResultT >::Case(), llvm::Default, llvm::dyn_cast(), llvm::VPlan::getEntry(), llvm::VPInstruction::getOpcode(), llvm::VPBlockBase::getPlan(), llvm::VPlan::getVectorPreheader(), llvm::isa(), llvm::VPInstruction::isSingleScalar(), isUniformAcrossVFsAndUFs(), llvm::VPInstruction::isVectorToScalar(), llvm::VPlanPatternMatch::m_VPInstruction(), llvm::SCEVPatternMatch::match(), llvm::VPUser::operands(), and preservesUniformity().
Referenced by isKnownMonotonic(), isUniformAcrossVFsAndUFs(), narrowToSingleScalarRecipes(), and simplifyRecipe().
◆ isUsedByLoadStoreAddress()
Returns true if V is used as part of the address of another load or store.
Definition at line 678 of file VPlanUtils.cpp.
References llvm::cast(), llvm::dyn_cast(), llvm::SmallVectorTemplateCommon< T, typename >::empty(), I, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::VPlanPatternMatch::m_Binary(), llvm::PatternMatchHelpers::m_CombineOr(), llvm::PatternMatch::m_Specific(), llvm::VPlanPatternMatch::m_Unary(), llvm::VPlanPatternMatch::m_VPInstruction(), llvm::VPlanPatternMatch::m_VPValue(), llvm::PatternMatch::match(), llvm::none_of(), llvm::SmallVectorImpl< T >::pop_back_val(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::seq(), and llvm::VPValue::users().
Referenced by llvm::VPReplicateRecipe::computeCost(), and llvm::VPlanTransforms::makeMemOpWideningDecisions().
◆ onlyFirstLaneUsed()
Returns true if only the first lane of Def is used.
Definition at line 26 of file VPlanUtils.cpp.
References llvm::all_of().
Referenced by llvm::VPBlendRecipe::computeCost(), llvm::VPDerivedIVRecipe::computeCost(), llvm::VPInstruction::computeCost(), llvm::VPScalarIVStepsRecipe::computeCost(), dissolveReplicateRegion(), llvm::VPInstruction::doesGeneratePerAllLanes(), llvm::VPInstruction::execute(), llvm::VPScalarIVStepsRecipe::execute(), llvm::VPTransformState::get(), legalizeAndOptimizeInductions(), llvm::VPlanTransforms::makeScalarizationDecisions(), llvm::VPlanTransforms::materializePacksAndUnpacks(), llvm::VPlanTransforms::narrowInterleaveGroups(), narrowToSingleScalarRecipes(), llvm::VPWidenPointerInductionRecipe::onlyScalarsGenerated(), processLaneForReplicateRegion(), llvm::VPlanTransforms::replaceWideCanonicalIVWithWideIV(), simplifyRecipe(), llvm::VPBlendRecipe::usesFirstLaneOnly(), and llvm::VPInstruction::usesFirstLaneOnly().
◆ onlyFirstPartUsed()
Returns true if only the first part of Def is used.
Definition at line 31 of file VPlanUtils.cpp.
References llvm::all_of().
Referenced by llvm::VPInstruction::usesFirstPartOnly().
◆ onlyScalarValuesUsed()
Returns true if only scalar values of Def are used by all users.
Definition at line 36 of file VPlanUtils.cpp.
References llvm::all_of().
Referenced by llvm::calculateRegisterUsageForPlan(), llvm::VPlanTransforms::materializeBroadcasts(), llvm::VPlanTransforms::materializeFactors(), llvm::VPWidenPointerInductionRecipe::onlyScalarsGenerated(), llvm::VPReplicateRecipe::printRecipe(), and llvm::VPlanTransforms::replaceWideCanonicalIVWithWideIV().
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