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SelectionDAGBuilder - This is the common target-independent lowering implementation that is parameterized by aTargetLowering object.More...

#include "CodeGen/SelectionDAG/SelectionDAGBuilder.h"

Classes
class	SDAGSwitchLowering

struct	StatepointLoweringInfo
	Describes a gc.statepoint or a gc.statepoint like thing for the purposes of lowering into a STATEPOINT node.More...

Public Member Functions
	SelectionDAGBuilder (SelectionDAG &dag,FunctionLoweringInfo &funcinfo,SwiftErrorValueTracking &swifterror,CodeGenOptLevel ol)

void	init (GCFunctionInfo gfi,BatchAAResults BatchAA,AssumptionCache AC,const TargetLibraryInfo li)

void	clear ()
	Clear out the currentSelectionDAG and the associated state and prepare thisSelectionDAGBuilder object to be used for a new block.

void	clearDanglingDebugInfo ()
	Clear the dangling debug information map.

SDValue	getMemoryRoot ()
	Return the current virtual root of the Selection DAG, flushing any PendingLoad items.

SDValue	getRoot ()
	Similar to getMemoryRoot, but also flushes PendingConstrainedFP(Strict) items.

SDValue	getControlRoot ()
	Similar to getRoot, but instead of flushing all the PendingLoad items, flush all the PendingExports (and PendingConstrainedFPStrict) items.

SDLoc	getCurSDLoc ()const

DebugLoc	getCurDebugLoc ()const

void	CopyValueToVirtualRegister (const Value *V,unsigned Reg,ISD::NodeType ExtendType=ISD::ANY_EXTEND)

void	visit (const Instruction &I)

void	visitDbgInfo (const Instruction &I)

void	visit (unsigned Opcode,const User &I)

SDValue	getCopyFromRegs (const Value V,Type Ty)
	If there was virtual register allocated for the value V emit CopyFromReg of the specified type Ty.

void	addDanglingDebugInfo (SmallVectorImpl<Value * > &Values,DILocalVariable Var,DIExpression Expr,bool IsVariadic,DebugLoc DL,unsigned Order)
	Register a dbg_value which relies on aValue which we have not yet seen.

void	dropDanglingDebugInfo (const DILocalVariable Variable,const DIExpression Expr)
	If we have dangling debug info that describes`Variable`, or an overlapping part of variable considering the`Expr`, then this method will drop that debug info as it isn't valid any longer.

void	resolveDanglingDebugInfo (const Value *V,SDValue Val)
	If we saw an earlier dbg_value referring to V, generate the debug data structures now that we've seen its definition.

void	salvageUnresolvedDbgValue (const Value *V, DanglingDebugInfo &DDI)
	For the given dangling debuginfo record, perform last-ditch efforts to resolve the debuginfo to something that is represented in this DAG.

bool	handleDebugValue (ArrayRef<const Value * > Values,DILocalVariable Var,DIExpression Expr,DebugLoc DbgLoc,unsigned Order,bool IsVariadic)
	For a given list of Values, attempt to create and record aSDDbgValue in theSelectionDAG.

void	handleKillDebugValue (DILocalVariable Var,DIExpression Expr,DebugLoc DbgLoc,unsigned Order)
	Create a record for a kill location debug intrinsic.

void	handleDebugDeclare (Value Address,DILocalVariable Variable,DIExpression *Expression,DebugLoc DL)

void	resolveOrClearDbgInfo ()
	Evict any dangling debug information, attempting to salvage it first.

SDValue	getValue (const Value *V)
	getValue - Return anSDValue for the givenValue.

SDValue	getNonRegisterValue (const Value *V)
	getNonRegisterValue - Return anSDValue for the givenValue, but don't look in FuncInfo.ValueMap for a virtual register.

SDValue	getValueImpl (const Value *V)
	getValueImpl - Helper function for getValue and getNonRegisterValue.

void	setValue (const Value *V,SDValue NewN)

void	setUnusedArgValue (const Value *V,SDValue NewN)

bool	shouldKeepJumpConditionsTogether (const FunctionLoweringInfo &FuncInfo,const BranchInst &I,Instruction::BinaryOps Opc,const Value Lhs,const Value Rhs,TargetLoweringBase::CondMergingParams Params)const

void	FindMergedConditions (const Value Cond,MachineBasicBlock TBB,MachineBasicBlock FBB,MachineBasicBlock CurBB,MachineBasicBlock *SwitchBB,Instruction::BinaryOps Opc,BranchProbability TProb,BranchProbability FProb,bool InvertCond)

void	EmitBranchForMergedCondition (const Value Cond,MachineBasicBlock TBB,MachineBasicBlock FBB,MachineBasicBlock CurBB,MachineBasicBlock *SwitchBB,BranchProbability TProb,BranchProbability FProb,bool InvertCond)
	EmitBranchForMergedCondition - Helper method for FindMergedConditions.

bool	ShouldEmitAsBranches (const std::vector<SwitchCG::CaseBlock > &Cases)
	If the set of cases should be emitted as a series of branches, return true.

bool	isExportableFromCurrentBlock (const Value V,const BasicBlock FromBB)

void	CopyToExportRegsIfNeeded (const Value *V)
	CopyToExportRegsIfNeeded - If the given value has virtual registers created for it, emit nodes to copy the value into the virtual registers.

void	ExportFromCurrentBlock (const Value *V)
	ExportFromCurrentBlock - If this condition isn't known to be exported from the current basic block, add it toValueMap now so that we'll get a CopyTo/FromReg.

void	LowerCallTo (const CallBase &CB,SDValue Callee,bool IsTailCall,bool IsMustTailCall,const BasicBlock EHPadBB=nullptr,const TargetLowering::PtrAuthInfo PAI=nullptr)

SDValue	lowerRangeToAssertZExt (SelectionDAG &DAG,const Instruction &I,SDValue Op)

void	populateCallLoweringInfo (TargetLowering::CallLoweringInfo &CLI,const CallBase Call,unsigned ArgIdx,unsigned NumArgs,SDValue Callee,Type ReturnTy,AttributeSet RetAttrs,bool IsPatchPoint)
	Populate a CallLowerinInfo (into`CLI`) based on the properties of the call being lowered.

std::pair<SDValue,SDValue >	lowerInvokable (TargetLowering::CallLoweringInfo &CLI,const BasicBlock *EHPadBB=nullptr)

void	UpdateSplitBlock (MachineBasicBlock First,MachineBasicBlock Last)
	When an MBB was split during scheduling, update the references that need to refer to the last resulting block.

SDValue	LowerAsSTATEPOINT (StatepointLoweringInfo &SI)
	Lower`SLI` into a STATEPOINT instruction.

void	LowerStatepoint (const GCStatepointInst &I,const BasicBlock *EHPadBB=nullptr)

void	LowerCallSiteWithDeoptBundle (const CallBase Call,SDValue Callee,const BasicBlock EHPadBB)

void	LowerDeoptimizeCall (const CallInst *CI)

void	LowerDeoptimizingReturn ()

void	LowerCallSiteWithDeoptBundleImpl (const CallBase Call,SDValue Callee,const BasicBlock EHPadBB,bool VarArgDisallowed,bool ForceVoidReturnTy)

void	LowerCallSiteWithPtrAuthBundle (const CallBase &CB,const BasicBlock *EHPadBB)

MVT	getFrameIndexTy ()
	Returns the type of FrameIndex and TargetFrameIndex nodes.

void	visitSwitchCase (SwitchCG::CaseBlock &CB,MachineBasicBlock *SwitchBB)
	visitSwitchCase - Emits the necessary code to represent a single node in the binary search tree resulting from lowering a switch instruction.

void	visitSPDescriptorParent (StackProtectorDescriptor &SPD,MachineBasicBlock *ParentBB)
	Codegen a new tail for a stack protector check ParentMBB which has had its tail spliced into a stack protector check success bb.

void	visitSPDescriptorFailure (StackProtectorDescriptor &SPD)
	Codegen the failure basic block for a stack protector check.

void	visitBitTestHeader (SwitchCG::BitTestBlock &B,MachineBasicBlock *SwitchBB)
	visitBitTestHeader - This function emits necessary code to produce value suitable for "bit tests"

void	visitBitTestCase (SwitchCG::BitTestBlock &BB,MachineBasicBlock NextMBB,BranchProbability BranchProbToNext,Register Reg,SwitchCG::BitTestCase &B,MachineBasicBlock SwitchBB)
	visitBitTestCase - this function produces one "bit test"

void	visitJumpTable (SwitchCG::JumpTable &JT)
	visitJumpTable - EmitJumpTable node in the current MBB

void	visitJumpTableHeader (SwitchCG::JumpTable &JT,SwitchCG::JumpTableHeader &JTH,MachineBasicBlock *SwitchBB)
	visitJumpTableHeader - This function emits necessary code to produce index in theJumpTable from switch case.

Public Attributes
SmallVector<SDValue, 8 >	PendingLoads
	Loads are not emitted to the program immediately.

StatepointLoweringState	StatepointLowering
	State used while lowering a statepoint sequence (gc_statepoint, gc_relocate, and gc_result).

SelectionDAG &	DAG

BatchAAResults *	BatchAA = nullptr

AssumptionCache *	AC = nullptr

const TargetLibraryInfo *	LibInfo = nullptr

std::unique_ptr<SDAGSwitchLowering >	SL

StackProtectorDescriptor	SPDescriptor
	AStackProtectorDescriptor structure used to communicate stack protector information in between SelectBasicBlock and FinishBasicBlock.

DenseMap<const Constant *,unsigned >	ConstantsOut

FunctionLoweringInfo &	FuncInfo
	Information about the function as a whole.

SwiftErrorValueTracking &	SwiftError
	Information about the swifterror values used throughout the function.

GCFunctionInfo *	GFI = nullptr
	Garbage collection metadata for the function.

DenseMap<MachineBasicBlock *,SmallVector<unsigned, 4 > >	LPadToCallSiteMap
	Map a landing pad to the call site indexes.

bool	HasTailCall = false
	This is set to true if a call in the current block has been translated as a tail call.

LLVMContext *	Context = nullptr

Static Public Attributes
staticconst unsigned	LowestSDNodeOrder = 1
	Lowest valid SDNodeOrder.

Detailed Description

SelectionDAGBuilder - This is the common target-independent lowering implementation that is parameterized by aTargetLowering object.

Definition at line97 of fileSelectionDAGBuilder.h.

Constructor & Destructor Documentation

◆ SelectionDAGBuilder()

llvm::SelectionDAGBuilder::SelectionDAGBuilder	(	SelectionDAG &	dag,
		FunctionLoweringInfo &	funcinfo,
		SwiftErrorValueTracking &	swifterror,
		CodeGenOptLevel	ol
	)

inline

Definition at line277 of fileSelectionDAGBuilder.h.

Member Function Documentation

◆ addDanglingDebugInfo()

void SelectionDAGBuilder::addDanglingDebugInfo	(	SmallVectorImpl<Value * > &	Values,
		DILocalVariable *	Var,
		DIExpression *	Expr,
		bool	IsVariadic,
		DebugLoc	DL,
		unsigned	Order
	)

Definition at line1403 of fileSelectionDAGBuilder.cpp.

Referencesassert(),DAG,DL,handleDanglingVariadicDebugInfo(), andllvm::SmallVectorBase< Size_T >::size().

Referenced byvisitDbgInfo().

◆ clear()

void SelectionDAGBuilder::clear

(

)

Clear out the currentSelectionDAG and the associated state and prepare thisSelectionDAGBuilder object to be used for a new block.

This doesn't clear out information about additional blocks that are needed to complete switch lowering or PHI node updating; that information is cleared out as it is consumed.

Definition at line1099 of fileSelectionDAGBuilder.cpp.

Referencesllvm::StatepointLoweringState::clear(),HasTailCall,LowestSDNodeOrder,PendingLoads, andStatepointLowering.

◆ clearDanglingDebugInfo()

void SelectionDAGBuilder::clearDanglingDebugInfo

(

)

Clear the dangling debug information map.

This function is separated from the clear so that debug information that is dangling in a basic block can be properly resolved in a different basic block. This allows theSelectionDAG to resolve dangling debug information attached to PHI nodes.

Definition at line1112 of fileSelectionDAGBuilder.cpp.

Referenced byresolveOrClearDbgInfo().

◆ CopyToExportRegsIfNeeded()

void SelectionDAGBuilder::CopyToExportRegsIfNeeded

(

const Value *

)

CopyToExportRegsIfNeeded - If the given value has virtual registers created for it, emit nodes to copy the value into the virtual registers.

Definition at line2341 of fileSelectionDAGBuilder.cpp.

Referencesassert(),CopyValueToVirtualRegister(),FuncInfo, andllvm::FunctionLoweringInfo::ValueMap.

Referenced byvisit().

◆ CopyValueToVirtualRegister()

void SelectionDAGBuilder::CopyValueToVirtualRegister	(	const Value *	V,
		unsigned	Reg,
		ISD::NodeType	ExtendType =`ISD::ANY_EXTEND`
	)

Definition at line11376 of fileSelectionDAGBuilder.cpp.

Referencesllvm::ISD::ANY_EXTEND,assert(),llvm::ISD::CopyFromReg,DAG,FuncInfo,llvm::RegsForValue::getCopyToRegs(),getCurSDLoc(),llvm::SelectionDAG::getDataLayout(),llvm::SelectionDAG::getEntryNode(),getNonRegisterValue(),llvm::SelectionDAG::getTargetLoweringInfo(),llvm::Register::isPhysicalRegister(), andllvm::FunctionLoweringInfo::PreferredExtendType.

Referenced byCopyToExportRegsIfNeeded(), andExportFromCurrentBlock().

◆ dropDanglingDebugInfo()

void SelectionDAGBuilder::dropDanglingDebugInfo	(	const DILocalVariable *	Variable,
		const DIExpression *	Expr
	)

If we have dangling debug info that describesVariable, or an overlapping part of variable considering theExpr, then this method will drop that debug info as it isn't valid any longer.

Definition at line1420 of fileSelectionDAGBuilder.cpp.

Referencesllvm::dbgs(),llvm::erase_if(),llvm::DIExpression::fragmentsOverlap(),LLVM_DEBUG, andsalvageUnresolvedDbgValue().

Referenced byvisitDbgInfo().

◆ EmitBranchForMergedCondition()

void SelectionDAGBuilder::EmitBranchForMergedCondition	(	const Value *	Cond,
		MachineBasicBlock *	TBB,
		MachineBasicBlock *	FBB,
		MachineBasicBlock *	CurBB,
		MachineBasicBlock *	SwitchBB,
		BranchProbability	TProb,
		BranchProbability	FProb,
		bool	InvertCond
	)

EmitBranchForMergedCondition - Helper method for FindMergedConditions.

This function emits a branch and is used at the leaves of an OR or an AND operator tree.

Definition at line2433 of fileSelectionDAGBuilder.cpp.

ReferencesCond,DAG,llvm::MachineBasicBlock::getBasicBlock(),llvm::SelectionDAG::getContext(),getCurSDLoc(),llvm::getFCmpCodeWithoutNaN(),llvm::getFCmpCondCode(),llvm::getICmpCondCode(),llvm::ConstantInt::getTrue(),isExportableFromCurrentBlock(),llvm::TargetOptions::NoNaNsFPMath,llvm::TargetMachine::Options,llvm::ISD::SETEQ,llvm::ISD::SETNE,SL, andTBB.

Referenced byFindMergedConditions().

◆ ExportFromCurrentBlock()

void SelectionDAGBuilder::ExportFromCurrentBlock

(

const Value *

)

ExportFromCurrentBlock - If this condition isn't known to be exported from the current basic block, add it toValueMap now so that we'll get a CopyTo/FromReg.

Definition at line2357 of fileSelectionDAGBuilder.cpp.

ReferencesCopyValueToVirtualRegister(),FuncInfo,llvm::FunctionLoweringInfo::InitializeRegForValue(), andllvm::FunctionLoweringInfo::isExportedInst().

Referenced byLowerAsSTATEPOINT().

◆ FindMergedConditions()

void SelectionDAGBuilder::FindMergedConditions	(	const Value *	Cond,
		MachineBasicBlock *	TBB,
		MachineBasicBlock *	FBB,
		MachineBasicBlock *	CurBB,
		MachineBasicBlock *	SwitchBB,
		Instruction::BinaryOps	Opc,
		BranchProbability	TProb,
		BranchProbability	FProb,
		bool	InvertCond
	)

Definition at line2626 of fileSelectionDAGBuilder.cpp.

Referencesassert(),Cond,llvm::MachineFunction::CreateMachineBasicBlock(),DAG,EmitBranchForMergedCondition(),FindMergedConditions(),llvm::MachineBasicBlock::getBasicBlock(),llvm::SelectionDAG::getMachineFunction(),llvm::ilist_detail::node_parent_access< NodeTy, ParentTy >::getParent(),llvm::MachineBasicBlock::getParent(),llvm::Value::hasOneUse(),InBlock(),llvm::MachineFunction::insert(),llvm::PatternMatch::m_LogicalAnd(),llvm::PatternMatch::m_LogicalOr(),llvm::PatternMatch::m_Not(),llvm::PatternMatch::m_OneUse(),llvm::PatternMatch::m_Value(),llvm::PatternMatch::match(),llvm::BranchProbability::normalizeProbabilities(), andTBB.

Referenced byFindMergedConditions().

◆ getControlRoot()

SDValue SelectionDAGBuilder::getControlRoot

(

)

Similar to getRoot, but instead of flushing all the PendingLoad items, flush all the PendingExports (and PendingConstrainedFPStrict) items.

It is necessary to do this before emitting a terminator instruction.

Definition at line1167 of fileSelectionDAGBuilder.cpp.

Referenced byLowerAsSTATEPOINT(),lowerInvokable(),visitBitTestCase(),visitBitTestHeader(),visitJumpTable(),visitJumpTableHeader(), andvisitSwitchCase().

◆ getCopyFromRegs()

SDValue SelectionDAGBuilder::getCopyFromRegs	(	const Value *	V,
		Type *	Ty
	)

If there was virtual register allocated for the value V emit CopyFromReg of the specified type Ty.

getCopyFromRegs - If there was virtual register allocated for the value V emit CopyFromReg of the specified type Ty.

Return empty SDValue() otherwise.

Definition at line1726 of fileSelectionDAGBuilder.cpp.

ReferencesDAG,FuncInfo,llvm::SelectionDAG::getContext(),llvm::RegsForValue::getCopyFromRegs(),getCurSDLoc(),llvm::SelectionDAG::getDataLayout(),llvm::SelectionDAG::getEntryNode(),llvm::SelectionDAG::getTargetLoweringInfo(),resolveDanglingDebugInfo(), andllvm::FunctionLoweringInfo::ValueMap.

Referenced bygetValue().

◆ getCurDebugLoc()

DebugLoc llvm::SelectionDAGBuilder::getCurDebugLoc

(

)

const

inline

Definition at line319 of fileSelectionDAGBuilder.h.

Referencesllvm::Instruction::getDebugLoc().

◆ getCurSDLoc()

SDLoc llvm::SelectionDAGBuilder::getCurSDLoc

(

)

const

inline

Definition at line315 of fileSelectionDAGBuilder.h.

Referenced byCopyValueToVirtualRegister(),EmitBranchForMergedCondition(),getCopyFromRegs(),getMemCmpLoad(),getUniformBase(),getValueImpl(),LowerAsSTATEPOINT(),LowerCallTo(),LowerDeoptimizingReturn(),lowerRangeToAssertZExt(),LowerStatepoint(),lowerStatepointMetaArgs(),populateCallLoweringInfo(),pushStackMapConstant(),spillIncomingStatepointValue(),visitBitTestCase(),visitBitTestHeader(),visitSPDescriptorFailure(),visitSPDescriptorParent(), andvisitSwitchCase().

◆ getFrameIndexTy()

MVT llvm::SelectionDAGBuilder::getFrameIndexTy

(

)

inline

Returns the type of FrameIndex and TargetFrameIndex nodes.

Definition at line498 of fileSelectionDAGBuilder.h.

ReferencesDAG,llvm::SelectionDAG::getDataLayout(),llvm::TargetLoweringBase::getFrameIndexTy(), andllvm::SelectionDAG::getTargetLoweringInfo().

Referenced bylowerIncomingStatepointValue(),lowerStatepointMetaArgs(),reservePreviousStackSlotForValue(), andspillIncomingStatepointValue().

◆ getMemoryRoot()

SDValue SelectionDAGBuilder::getMemoryRoot

(

)

Return the current virtual root of the Selection DAG, flushing any PendingLoad items.

This must be done before emitting a store or any other memory node that may need to be ordered after any prior load instructions.

Definition at line1147 of fileSelectionDAGBuilder.cpp.

ReferencesPendingLoads.

Referenced bygetRoot().

◆ getNonRegisterValue()

SDValue SelectionDAGBuilder::getNonRegisterValue

(

const Value *

)

getNonRegisterValue - Return anSDValue for the givenValue, but don't look in FuncInfo.ValueMap for a virtual register.

Definition at line1767 of fileSelectionDAGBuilder.cpp.

ReferencesgetValueImpl(),llvm::isIntOrFPConstant(),N, andresolveDanglingDebugInfo().

Referenced byCopyValueToVirtualRegister().

◆ getRoot()

SDValue SelectionDAGBuilder::getRoot

(

)

Similar to getMemoryRoot, but also flushes PendingConstrainedFP(Strict) items.

This must be done before emitting any call other any other node that may need to be ordered after FP instructions due to other side effects.

Definition at line1151 of fileSelectionDAGBuilder.cpp.

ReferencesgetMemoryRoot(), andPendingLoads.

Referenced byLowerAsSTATEPOINT(),LowerCallTo(),lowerIncomingStatepointValue(),lowerInvokable(), andpopulateCallLoweringInfo().

◆ getValue()

SDValue SelectionDAGBuilder::getValue

(

const Value *

)

getValue - Return anSDValue for the givenValue.

Definition at line1746 of fileSelectionDAGBuilder.cpp.

ReferencesgetCopyFromRegs(),getValueImpl(),N, andresolveDanglingDebugInfo().

Referenced byaddStackMapLiveVars(),getMemCmpLoad(),getUniformBase(),getValueImpl(),LowerAsSTATEPOINT(),LowerCallSiteWithPtrAuthBundle(),LowerCallTo(),LowerStatepoint(),lowerStatepointMetaArgs(),populateCallLoweringInfo(),reservePreviousStackSlotForValue(),visitBitTestHeader(),visitJumpTableHeader(),visitSPDescriptorParent(), andvisitSwitchCase().

◆ getValueImpl()

SDValue SelectionDAGBuilder::getValueImpl

(

const Value *

)

getValueImpl - Helper function for getValue and getNonRegisterValue.

Create anSDValue for the given value.

Definition at line1790 of fileSelectionDAGBuilder.cpp.

Referenced bygetNonRegisterValue(), andgetValue().

◆ handleDebugDeclare()

void SelectionDAGBuilder::handleDebugDeclare	(	Value *	Address,
		DILocalVariable *	Variable,
		DIExpression *	Expression,
		DebugLoc	DL
	)

Definition at line1176 of fileSelectionDAGBuilder.cpp.

Referencesllvm::SelectionDAG::AddDbgValue(),llvm::Address,assert(),DAG,llvm::dbgs(),DL,llvm::SelectionDAG::getDbgValue(),llvm::SelectionDAG::getFrameIndexDbgValue(),llvm::DILocalVariable::isParameter(),LLVM_DEBUG, andN.

Referenced byvisitDbgInfo().

◆ handleDebugValue()

bool SelectionDAGBuilder::handleDebugValue	(	ArrayRef<const Value * >	Values,
		DILocalVariable *	Var,
		DIExpression *	Expr,
		DebugLoc	DbgLoc,
		unsigned	Order,
		bool	IsVariadic
	)

For a given list of Values, attempt to create and record aSDDbgValue in theSelectionDAG.

Definition at line1579 of fileSelectionDAGBuilder.cpp.

Referencesllvm::SelectionDAG::AddDbgValue(),assert(),llvm::DIExpression::createFragmentExpression(),DAG,llvm::SmallVectorImpl< T >::emplace_back(),llvm::ArrayRef< T >::empty(),llvm::SmallVectorBase< Size_T >::empty(),llvm::SDDbgOperand::fromConst(),llvm::SDDbgOperand::fromFrameIdx(),llvm::SDDbgOperand::fromNode(),llvm::SDDbgOperand::fromVReg(),FuncInfo,llvm::SelectionDAG::getDataLayout(),llvm::SelectionDAG::getDbgValueList(),llvm::DIExpression::getFragmentInfo(),llvm::DebugLoc::getInlinedAt(),llvm::RegsForValue::getRegsAndSizes(),llvm::DIVariable::getSizeInBits(),llvm::SelectionDAG::getTargetLoweringInfo(),llvm::SelectionDAG::getVRegDbgValue(),llvm::DILocalVariable::isParameter(),N,llvm::RegsForValue::occupiesMultipleRegs(),llvm::Offset,llvm::SmallVectorTemplateBase< T, bool >::push_back(),llvm::FunctionLoweringInfo::StaticAllocaMap, andllvm::FunctionLoweringInfo::ValueMap.

Referenced byhandleKillDebugValue(),salvageUnresolvedDbgValue(), andvisitDbgInfo().

◆ handleKillDebugValue()

void SelectionDAGBuilder::handleKillDebugValue	(	DILocalVariable *	Var,
		DIExpression *	Expr,
		DebugLoc	DbgLoc,
		unsigned	Order
	)

Create a record for a kill location debug intrinsic.

Definition at line1568 of fileSelectionDAGBuilder.cpp.

ReferencesContext,llvm::DIExpression::convertToUndefExpression(),llvm::PoisonValue::get(),llvm::Type::getInt1Ty(),handleDebugValue(), andPoison.

Referenced byvisitDbgInfo().

◆ init()

void SelectionDAGBuilder::init	(	GCFunctionInfo *	gfi,
		BatchAAResults *	BatchAA,
		AssumptionCache *	AC,
		const TargetLibraryInfo *	li
	)

Definition at line1085 of fileSelectionDAGBuilder.cpp.

Referencesaa,AC,BatchAA,Context,DAG,llvm::SelectionDAG::getContext(),llvm::SelectionDAG::getDataLayout(),llvm::MachineFunction::getFunction(),llvm::SelectionDAG::getMachineFunction(),llvm::GlobalValue::getParent(),llvm::SelectionDAG::getTargetLoweringInfo(),GFI,llvm::isAssignmentTrackingEnabled(),LibInfo,LPadToCallSiteMap, andSL.

◆ isExportableFromCurrentBlock()

bool SelectionDAGBuilder::isExportableFromCurrentBlock	(	const Value *	V,
		const BasicBlock *	FromBB
	)

Definition at line2368 of fileSelectionDAGBuilder.cpp.

ReferencesFuncInfo,llvm::BasicBlock::isEntryBlock(), andllvm::FunctionLoweringInfo::isExportedInst().

Referenced byEmitBranchForMergedCondition().

◆ LowerAsSTATEPOINT()

SDValue SelectionDAGBuilder::LowerAsSTATEPOINT

(

SelectionDAGBuilder::StatepointLoweringInfo &

)

LowerSLI into a STATEPOINT instruction.

Definition at line707 of fileStatepointLowering.cpp.

Referenced byLowerCallSiteWithDeoptBundleImpl(), andLowerStatepoint().

◆ LowerCallSiteWithDeoptBundle()

void SelectionDAGBuilder::LowerCallSiteWithDeoptBundle	(	const CallBase *	Call,
		SDValue	Callee,
		const BasicBlock *	EHPadBB
	)

Definition at line1174 of fileStatepointLowering.cpp.

ReferencesLowerCallSiteWithDeoptBundleImpl().

◆ LowerCallSiteWithDeoptBundleImpl()

void SelectionDAGBuilder::LowerCallSiteWithDeoptBundleImpl	(	const CallBase *	Call,
		SDValue	Callee,
		const BasicBlock *	EHPadBB,
		bool	VarArgDisallowed,
		bool	ForceVoidReturnTy
	)

Definition at line1140 of fileStatepointLowering.cpp.

ReferencesDAG,llvm::dbgs(),llvm::StatepointDirectives::DeoptBundleStatepointID,llvm::SelectionDAG::getContext(),llvm::Type::getVoidTy(),LLVM_DEBUG,LowerAsSTATEPOINT(),lowerRangeToAssertZExt(),llvm::None,llvm::LLVMContext::OB_deopt,llvm::parseStatepointDirectivesFromAttrs(),populateCallLoweringInfo(), andsetValue().

Referenced byLowerCallSiteWithDeoptBundle(), andLowerDeoptimizeCall().

◆ LowerCallSiteWithPtrAuthBundle()

void SelectionDAGBuilder::LowerCallSiteWithPtrAuthBundle	(	const CallBase &	CB,
		const BasicBlock *	EHPadBB
	)

Definition at line9604 of fileSelectionDAGBuilder.cpp.

Referencesassert(),DAG,llvm::CallBase::getCalledOperand(),llvm::SelectionDAG::getDataLayout(),llvm::CallBase::getOperandBundle(),getValue(),llvm::CallBase::isMustTailCall(),llvm::CallBase::isTailCall(), andLowerCallTo().

◆ LowerCallTo()

void SelectionDAGBuilder::LowerCallTo	(	const CallBase &	CB,
		SDValue	Callee,
		bool	IsTailCall,
		bool	IsMustTailCall,
		const BasicBlock *	EHPadBB =`nullptr`,
		const TargetLowering::PtrAuthInfo *	PAI =`nullptr`
	)

Definition at line8859 of fileSelectionDAGBuilder.cpp.

Referenced byLowerCallSiteWithPtrAuthBundle().

◆ LowerDeoptimizeCall()

void SelectionDAGBuilder::LowerDeoptimizeCall

(

const CallInst *

)

Definition at line1302 of fileStatepointLowering.cpp.

ReferencesDAG,llvm::SelectionDAG::getDataLayout(),llvm::SelectionDAG::getExternalSymbol(),llvm::SelectionDAG::getTargetLoweringInfo(), andLowerCallSiteWithDeoptBundleImpl().

◆ LowerDeoptimizingReturn()

void SelectionDAGBuilder::LowerDeoptimizingReturn

(

)

Definition at line1315 of fileStatepointLowering.cpp.

ReferencesDAG,getCurSDLoc(),llvm::SelectionDAG::getNode(),llvm::SelectionDAG::getRoot(),llvm::SelectionDAG::getTarget(),llvm::TargetMachine::Options,llvm::SelectionDAG::setRoot(),llvm::ISD::TRAP, andllvm::TargetOptions::TrapUnreachable.

◆ lowerInvokable()

std::pair<SDValue,SDValue > SelectionDAGBuilder::lowerInvokable	(	TargetLowering::CallLoweringInfo &	CLI,
		const BasicBlock *	EHPadBB =`nullptr`
	)

Definition at line8818 of fileSelectionDAGBuilder.cpp.

Referencesassert(),llvm::TargetLowering::CallLoweringInfo::CB,DAG,getControlRoot(),getRoot(),llvm::SelectionDAG::getTargetLoweringInfo(),HasTailCall,llvm::TargetLowering::CallLoweringInfo::IsTailCall,llvm::TargetLowering::LowerCallTo(),llvm::TargetLowering::CallLoweringInfo::setChain(), andllvm::SelectionDAG::setRoot().

Referenced bylowerCallFromStatepointLoweringInfo(), andLowerCallTo().

◆ lowerRangeToAssertZExt()

SDValue SelectionDAGBuilder::lowerRangeToAssertZExt	(	SelectionDAG &	DAG,
		const Instruction &	I,
		SDValue	Op
	)

Definition at line10541 of fileSelectionDAGBuilder.cpp.

Referencesllvm::ISD::AssertZext,DAG,llvm::SelectionDAG::getContext(),getCurSDLoc(),llvm::EVT::getIntegerVT(),llvm::SelectionDAG::getMergeValues(),llvm::SelectionDAG::getNode(),getRange(),llvm::SelectionDAG::getValueType(),llvm::Hi,I,llvm::Lo,llvm::IntegerType::MIN_INT_BITS,llvm::SmallVectorTemplateBase< T, bool >::push_back(), andSL.

Referenced byLowerCallSiteWithDeoptBundleImpl(), andLowerCallTo().

◆ LowerStatepoint()

void SelectionDAGBuilder::LowerStatepoint	(	const GCStatepointInst &	I,
		const BasicBlock *	EHPadBB =`nullptr`
	)

Definition at line1014 of fileStatepointLowering.cpp.

Referencesllvm::CallingConv::AnyReg,assert(),llvm::GCStatepointInst::CallArgsBeginPos,llvm::FunctionLoweringInfo::CreateRegs(),DAG,FuncInfo,llvm::SelectionDAG::getContext(),llvm::RegsForValue::getCopyToRegs(),getCurSDLoc(),llvm::SelectionDAG::getDataLayout(),llvm::SelectionDAG::getEntryNode(),getGCResultLocality(),llvm::SelectionDAG::getIntPtrConstant(),llvm::GCFunctionInfo::getStrategy(),llvm::SelectionDAG::getTargetLoweringInfo(),llvm::SelectionDAG::getUNDEF(),getValue(),GFI,I,llvm::SmallSet< T, N, C >::insert(),isGCValue(),LowerAsSTATEPOINT(),populateCallLoweringInfo(),RetTy,setValue(),llvm::GCStrategy::useStatepoints(), andllvm::FunctionLoweringInfo::ValueMap.

◆ populateCallLoweringInfo()

void SelectionDAGBuilder::populateCallLoweringInfo	(	TargetLowering::CallLoweringInfo &	CLI,
		const CallBase *	Call,
		unsigned	ArgIdx,
		unsigned	NumArgs,
		SDValue	Callee,
		Type *	ReturnTy,
		AttributeSet	RetAttrs,
		bool	IsPatchPoint
	)

Populate a CallLowerinInfo (intoCLI) based on the properties of the call being lowered.

This is a helper for lowering intrinsics that follow a target calling convention or require stack pointer adjustment. Only a subset of the intrinsic's operands need to participate in the calling convention.

Definition at line10582 of fileSelectionDAGBuilder.cpp.

Referencesassert(),getCurSDLoc(),getRoot(),getValue(),llvm::LLVMContext::OB_preallocated,llvm::TargetLowering::CallLoweringInfo::setCallee(),llvm::TargetLowering::CallLoweringInfo::setChain(),llvm::TargetLowering::CallLoweringInfo::setDebugLoc(),llvm::TargetLowering::CallLoweringInfo::setDiscardResult(),llvm::TargetLowering::CallLoweringInfo::setIsPatchPoint(), andllvm::TargetLowering::CallLoweringInfo::setIsPreallocated().

Referenced byLowerCallSiteWithDeoptBundleImpl(), andLowerStatepoint().

◆ resolveDanglingDebugInfo()

void SelectionDAGBuilder::resolveDanglingDebugInfo	(	const Value *	V,
		SDValue	Val
	)

If we saw an earlier dbg_value referring to V, generate the debug data structures now that we've seen its definition.

Definition at line1448 of fileSelectionDAGBuilder.cpp.

Referencesllvm::SelectionDAG::AddDbgValue(),assert(),DAG,llvm::dbgs(),DL,llvm::SDValue::dump(),llvm::UndefValue::get(),llvm::SelectionDAG::getConstantDbgValue(),llvm::SDNode::getIROrder(),llvm::SDValue::getNode(),llvm::DILocalVariable::isValidLocationForIntrinsic(), andLLVM_DEBUG.

Referenced bygetCopyFromRegs(),getNonRegisterValue(), andgetValue().

◆ resolveOrClearDbgInfo()

void SelectionDAGBuilder::resolveOrClearDbgInfo

(

)

Evict any dangling debug information, attempting to salvage it first.

Definition at line1716 of fileSelectionDAGBuilder.cpp.

ReferencesclearDanglingDebugInfo(), andsalvageUnresolvedDbgValue().

◆ salvageUnresolvedDbgValue()

void SelectionDAGBuilder::salvageUnresolvedDbgValue	(	const Value *	V,
		DanglingDebugInfo &	DDI
	)

For the given dangling debuginfo record, perform last-ditch efforts to resolve the debuginfo to something that is represented in this DAG.

If this cannot be done, produce an Undef debug value record.

Definition at line1502 of fileSelectionDAGBuilder.cpp.

Referencesllvm::SelectionDAG::AddDbgValue(),llvm::DIExpression::appendOpsToArg(),assert(),DAG,llvm::dbgs(),DL,llvm::SmallVectorBase< Size_T >::empty(),llvm::UndefValue::get(),llvm::SelectionDAG::getConstantDbgValue(),llvm::DIExpression::getNumLocationOperands(),llvm::Value::getType(),handleDebugValue(),LLVM_DEBUG, andllvm::salvageDebugInfoImpl().

Referenced bydropDanglingDebugInfo(), andresolveOrClearDbgInfo().

◆ setUnusedArgValue()

void llvm::SelectionDAGBuilder::setUnusedArgValue	(	const Value *	V,
		SDValue	NewN
	)

inline

Definition at line382 of fileSelectionDAGBuilder.h.

Referencesassert(), andN.

◆ setValue()

void llvm::SelectionDAGBuilder::setValue	(	const Value *	V,
		SDValue	NewN
	)

inline

Definition at line376 of fileSelectionDAGBuilder.h.

Referencesassert(), andN.

Referenced byLowerCallSiteWithDeoptBundleImpl(),LowerCallTo(),LowerStatepoint(), andvisitSwitchCase().

◆ ShouldEmitAsBranches()

bool SelectionDAGBuilder::ShouldEmitAsBranches

(

const std::vector<SwitchCG::CaseBlock > &

Cases

)

If the set of cases should be emitted as a series of branches, return true.

If we should emit this as a bunch of and/or'd together conditions, return false.

Definition at line2757 of fileSelectionDAGBuilder.cpp.

ReferencesCC,llvm::ISD::SETEQ, andllvm::ISD::SETNE.

◆ shouldKeepJumpConditionsTogether()

bool SelectionDAGBuilder::shouldKeepJumpConditionsTogether	(	const FunctionLoweringInfo &	FuncInfo,
		const BranchInst &	I,
		Instruction::BinaryOps	Opc,
		const Value *	Lhs,
		const Value *	Rhs,
		TargetLoweringBase::CondMergingParams	Params
	)		const

Definition at line2512 of fileSelectionDAGBuilder.cpp.

Referencesllvm::TargetLoweringBase::CondMergingParams::BaseCost,llvm::FunctionLoweringInfo::BPI,collectInstructionDeps(),llvm::MapVector< KeyT, ValueT, MapType, VectorType >::contains(),DAG,FuncInfo,llvm::TargetTransformInfo::getInstructionCost(),llvm::SelectionDAG::getTargetLoweringInfo(),llvm::TargetLoweringBase::getTargetMachine(),llvm::TargetMachine::getTargetTransformInfo(),I,llvm::BranchProbabilityInfo::isEdgeHot(),llvm::TargetLoweringBase::CondMergingParams::LikelyBias,llvm::SelectionDAG::MaxRecursionDepth,llvm::TargetTransformInfo::TCK_Latency,llvm::MapVector< KeyT, ValueT, MapType, VectorType >::try_emplace(), andllvm::TargetLoweringBase::CondMergingParams::UnlikelyBias.

◆ UpdateSplitBlock()

void SelectionDAGBuilder::UpdateSplitBlock	(	MachineBasicBlock *	First,
		MachineBasicBlock *	Last
	)

When an MBB was split during scheduling, update the references that need to refer to the last resulting block.

Definition at line3510 of fileSelectionDAGBuilder.cpp.

Referencesllvm::First,llvm::Last,llvm::SwitchCG::BitTestBlock::Parent, andSL.

◆ visit()[1/2]

void SelectionDAGBuilder::visit

(

const Instruction &

)

Definition at line1317 of fileSelectionDAGBuilder.cpp.

Referencesllvm::SelectionDAG::addMMRAMetadata(),llvm::SelectionDAG::addPCSections(),assert(),CopyToExportRegsIfNeeded(),DAG,llvm::errs(),HasTailCall,I,LLVM_DEBUG,visit(), andvisitDbgInfo().

Referenced bygetValueImpl(), andvisit().

◆ visit()[2/2]

void SelectionDAGBuilder::visit	(	unsigned	Opcode,
		const User &	I
	)

Definition at line1372 of fileSelectionDAGBuilder.cpp.

Referencesllvm_unreachable.

◆ visitBitTestCase()

void SelectionDAGBuilder::visitBitTestCase	(	SwitchCG::BitTestBlock &	BB,
		MachineBasicBlock *	NextMBB,
		BranchProbability	BranchProbToNext,
		Register	Reg,
		SwitchCG::BitTestCase &	B,
		MachineBasicBlock *	SwitchBB
	)

visitBitTestCase - this function produces one "bit test"

Definition at line3264 of fileSelectionDAGBuilder.cpp.

◆ visitBitTestHeader()

void SelectionDAGBuilder::visitBitTestHeader	(	SwitchCG::BitTestBlock &	B,
		MachineBasicBlock *	SwitchBB
	)

visitBitTestHeader - This function emits necessary code to produce value suitable for "bit tests"

Definition at line3202 of fileSelectionDAGBuilder.cpp.

◆ visitDbgInfo()

void SelectionDAGBuilder::visitDbgInfo

(

const Instruction &

)

Definition at line1229 of fileSelectionDAGBuilder.cpp.

ReferencesaddDanglingDebugInfo(),llvm::SelectionDAG::AddDbgLabel(),llvm::any_of(),assert(),DAG,llvm::dbgs(),llvm::DbgVariableRecord::Declare,dropDanglingDebugInfo(),llvm::SmallVectorBase< Size_T >::empty(),End,FuncInfo,llvm::SelectionDAG::getDbgLabel(),llvm::DbgRecord::getDebugLoc(),llvm::DbgVariableRecord::getExpression(),llvm::SelectionDAG::getFunctionVarLocs(),llvm::DbgVariableRecord::getType(),llvm::DbgVariableRecord::getVariable(),llvm::DbgVariableRecord::getVariableLocationOp(),handleDebugDeclare(),handleDebugValue(),handleKillDebugValue(),llvm::DbgVariableRecord::hasArgList(),I,LLVM_DEBUG,llvm::DbgVariableRecord::location_ops(),llvm::FunctionLoweringInfo::PreprocessedDVRDeclares, andllvm::SmallVectorBase< Size_T >::size().

Referenced byvisit().

◆ visitJumpTable()

void SelectionDAGBuilder::visitJumpTable

(

SwitchCG::JumpTable &

)

visitJumpTable - EmitJumpTable node in the current MBB

Definition at line2988 of fileSelectionDAGBuilder.cpp.

Referencesassert(),llvm::ISD::BR_JT,DAG,getControlRoot(),llvm::SelectionDAG::getCopyFromReg(),llvm::SelectionDAG::getDataLayout(),llvm::SelectionDAG::getJumpTable(),llvm::TargetLowering::getJumpTableRegTy(),llvm::SelectionDAG::getNode(),llvm::SelectionDAG::getTargetLoweringInfo(), andllvm::SelectionDAG::setRoot().

◆ visitJumpTableHeader()

void SelectionDAGBuilder::visitJumpTableHeader	(	SwitchCG::JumpTable &	JT,
		SwitchCG::JumpTableHeader &	JTH,
		MachineBasicBlock *	SwitchBB
	)

visitJumpTableHeader - This function emits necessary code to produce index in theJumpTable from switch case.

Definition at line3002 of fileSelectionDAGBuilder.cpp.

◆ visitSPDescriptorFailure()

void SelectionDAGBuilder::visitSPDescriptorFailure

(

StackProtectorDescriptor &

SPD

)

Codegen the failure basic block for a stack protector check.

A failure stack protector machine basic block consists simply of a call to __stack_chk_fail().

For a high level explanation of how this fits into the stack protector generation see the comment on the declaration of classStackProtectorDescriptor.

Definition at line3184 of fileSelectionDAGBuilder.cpp.

ReferencesDAG,getCurSDLoc(),llvm::SelectionDAG::getNode(),llvm::SelectionDAG::getTarget(),llvm::SelectionDAG::getTargetLoweringInfo(),llvm::TargetLowering::makeLibCall(),llvm::TargetOptions::NoTrapAfterNoreturn,llvm::TargetMachine::Options,llvm::TargetLowering::MakeLibCallOptions::setDiscardResult(),llvm::SelectionDAG::setRoot(),llvm::ISD::TRAP, andllvm::TargetOptions::TrapUnreachable.

◆ visitSPDescriptorParent()

void SelectionDAGBuilder::visitSPDescriptorParent	(	StackProtectorDescriptor &	SPD,
		MachineBasicBlock *	ParentBB
	)

Codegen a new tail for a stack protector check ParentMBB which has had its tail spliced into a stack protector check success bb.

For a high level explanation of how this fits into the stack protector generation see the comment on the declaration of classStackProtectorDescriptor.

Definition at line3089 of fileSelectionDAGBuilder.cpp.

◆ visitSwitchCase()

void SelectionDAGBuilder::visitSwitchCase	(	SwitchCG::CaseBlock &	CB,
		MachineBasicBlock *	SwitchBB
	)

visitSwitchCase - Emits the necessary code to represent a single node in the binary search tree resulting from lowering a switch instruction.

Definition at line2892 of fileSelectionDAGBuilder.cpp.

Referencesassert(),llvm::ISD::BR,llvm::ISD::BRCOND,llvm::SwitchCG::CaseBlock::CC,llvm::SwitchCG::CaseBlock::CmpLHS,llvm::SwitchCG::CaseBlock::CmpMHS,llvm::SwitchCG::CaseBlock::CmpRHS,Cond,DAG,llvm::SwitchCG::CaseBlock::DL,llvm::SwitchCG::CaseBlock::FalseBB,llvm::SwitchCG::CaseBlock::FalseProb,llvm::SelectionDAG::getBasicBlock(),llvm::SelectionDAG::getConstant(),llvm::SelectionDAG::getContext(),getControlRoot(),getCurSDLoc(),llvm::SelectionDAG::getDataLayout(),llvm::ConstantInt::getFalse(),llvm::TargetLoweringBase::getMemValueType(),llvm::SelectionDAG::getNode(),llvm::SelectionDAG::getPtrExtOrTrunc(),llvm::SelectionDAG::getSetCC(),llvm::SelectionDAG::getTargetLoweringInfo(),llvm::ConstantInt::getTrue(),llvm::Value::getType(),getValue(),llvm::SDValue::getValueType(),High,llvm::SwitchCG::CaseBlock::IsUnpredictable,llvm::Low,llvm::MachineBasicBlock::normalizeSuccProbs(),llvm::ISD::SETEQ,llvm::ISD::SETLE,llvm::SelectionDAG::setRoot(),llvm::ISD::SETTRUE,llvm::ISD::SETULE,setValue(),llvm::ISD::SUB,std::swap(),llvm::SwitchCG::CaseBlock::TrueBB,llvm::SwitchCG::CaseBlock::TrueProb, andllvm::ISD::XOR.

Member Data Documentation

◆ AC

AssumptionCache* llvm::SelectionDAGBuilder::AC = nullptr

Definition at line229 of fileSelectionDAGBuilder.h.

Referenced byinit().

◆ BatchAA

BatchAAResults* llvm::SelectionDAGBuilder::BatchAA = nullptr

Definition at line228 of fileSelectionDAGBuilder.h.

Referenced bygetMemCmpLoad(), andinit().

◆ ConstantsOut

DenseMap<const Constant *,unsigned> llvm::SelectionDAGBuilder::ConstantsOut

Definition at line257 of fileSelectionDAGBuilder.h.

◆ Context

LLVMContext* llvm::SelectionDAGBuilder::Context = nullptr

Definition at line275 of fileSelectionDAGBuilder.h.

Referenced byhandleKillDebugValue(), andinit().

◆ DAG

SelectionDAG& llvm::SelectionDAGBuilder::DAG

Definition at line227 of fileSelectionDAGBuilder.h.

Referenced byaddDanglingDebugInfo(),addStackMapLiveVars(),llvm::StatepointLoweringState::allocateStackSlot(),CopyValueToVirtualRegister(),EmitBranchForMergedCondition(),FindMergedConditions(),getCopyFromRegs(),getFrameIndexTy(),getMemCmpLoad(),getUniformBase(),getValueImpl(),handleDebugDeclare(),handleDebugValue(),init(),LowerAsSTATEPOINT(),LowerCallSiteWithDeoptBundleImpl(),LowerCallSiteWithPtrAuthBundle(),LowerCallTo(),LowerDeoptimizeCall(),LowerDeoptimizingReturn(),lowerIncomingStatepointValue(),lowerInvokable(),lowerRangeToAssertZExt(),LowerStatepoint(),lowerStatepointMetaArgs(),pushStackMapConstant(),reservePreviousStackSlotForValue(),resolveDanglingDebugInfo(),salvageUnresolvedDbgValue(),shouldKeepJumpConditionsTogether(),spillIncomingStatepointValue(),visit(),visitBitTestCase(),visitBitTestHeader(),visitDbgInfo(),visitJumpTable(),visitJumpTableHeader(),visitSPDescriptorFailure(),visitSPDescriptorParent(), andvisitSwitchCase().

◆ FuncInfo

FunctionLoweringInfo& llvm::SelectionDAGBuilder::FuncInfo

Information about the function as a whole.

Definition at line260 of fileSelectionDAGBuilder.h.

Referenced byllvm::StatepointLoweringState::allocateStackSlot(),CopyToExportRegsIfNeeded(),CopyValueToVirtualRegister(),ExportFromCurrentBlock(),findPreviousSpillSlot(),getCopyFromRegs(),getValueImpl(),handleDebugValue(),isExportableFromCurrentBlock(),LowerAsSTATEPOINT(),LowerCallTo(),LowerStatepoint(),lowerStatepointMetaArgs(),reservePreviousStackSlotForValue(),shouldKeepJumpConditionsTogether(),llvm::StatepointLoweringState::startNewStatepoint(),visitBitTestHeader(),visitDbgInfo(), andvisitJumpTableHeader().

◆ GFI

GCFunctionInfo* llvm::SelectionDAGBuilder::GFI = nullptr

Garbage collection metadata for the function.

Definition at line266 of fileSelectionDAGBuilder.h.

Referenced byinit(),isGCValue(),LowerAsSTATEPOINT(), andLowerStatepoint().

◆ HasTailCall

bool llvm::SelectionDAGBuilder::HasTailCall = false

This is set to true if a call in the current block has been translated as a tail call.

In this case, no subsequent DAG nodes should be created.

Definition at line273 of fileSelectionDAGBuilder.h.

Referenced byclear(),lowerInvokable(), andvisit().

◆ LibInfo

const TargetLibraryInfo* llvm::SelectionDAGBuilder::LibInfo = nullptr

Definition at line230 of fileSelectionDAGBuilder.h.

Referenced byinit().

◆ LowestSDNodeOrder

const unsigned llvm::SelectionDAGBuilder::LowestSDNodeOrder = 1

static

Lowest valid SDNodeOrder.

The special case 0 is reserved for scheduling nodes without a correspondingSDNode.

Definition at line225 of fileSelectionDAGBuilder.h.

Referenced byclear().

◆ LPadToCallSiteMap

DenseMap<MachineBasicBlock *,SmallVector<unsigned, 4> > llvm::SelectionDAGBuilder::LPadToCallSiteMap

Map a landing pad to the call site indexes.

Definition at line269 of fileSelectionDAGBuilder.h.

Referenced byinit().

◆ PendingLoads

SmallVector<SDValue, 8> llvm::SelectionDAGBuilder::PendingLoads

Loads are not emitted to the program immediately.

We bunch them up and then emit token factor nodes when possible. This allows us to get simple disambiguation between loads without worrying about alias analysis.

Definition at line172 of fileSelectionDAGBuilder.h.

Referenced byclear(),getMemCmpLoad(),getMemoryRoot(), andgetRoot().

◆ SL

std::unique_ptr<SDAGSwitchLowering> llvm::SelectionDAGBuilder::SL

Definition at line249 of fileSelectionDAGBuilder.h.

Referenced byEmitBranchForMergedCondition(),init(),lowerRangeToAssertZExt(), andUpdateSplitBlock().

◆ SPDescriptor

StackProtectorDescriptor llvm::SelectionDAGBuilder::SPDescriptor

AStackProtectorDescriptor structure used to communicate stack protector information in between SelectBasicBlock and FinishBasicBlock.

Definition at line253 of fileSelectionDAGBuilder.h.

◆ StatepointLowering

StatepointLoweringState llvm::SelectionDAGBuilder::StatepointLowering

State used while lowering a statepoint sequence (gc_statepoint, gc_relocate, and gc_result).

See StatepointLowering.hpp/cpp for details.

Definition at line176 of fileSelectionDAGBuilder.h.

Referenced byclear(),LowerAsSTATEPOINT(),reservePreviousStackSlotForValue(), andspillIncomingStatepointValue().

◆ SwiftError

SwiftErrorValueTracking& llvm::SelectionDAGBuilder::SwiftError

Information about the swifterror values used throughout the function.

Definition at line263 of fileSelectionDAGBuilder.h.

Referenced byLowerCallTo().

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

lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
lib/CodeGen/SelectionDAG/StatepointLowering.cpp

Movatterモバイル変換

Classes

Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SelectionDAGBuilder()

Member Function Documentation

◆ addDanglingDebugInfo()

◆ clear()

◆ clearDanglingDebugInfo()

◆ CopyToExportRegsIfNeeded()

◆ CopyValueToVirtualRegister()

◆ dropDanglingDebugInfo()

◆ EmitBranchForMergedCondition()

◆ ExportFromCurrentBlock()

◆ FindMergedConditions()

◆ getControlRoot()

◆ getCopyFromRegs()

◆ getCurDebugLoc()

◆ getCurSDLoc()

◆ getFrameIndexTy()

◆ getMemoryRoot()

◆ getNonRegisterValue()

◆ getRoot()

◆ getValue()

◆ getValueImpl()

◆ handleDebugDeclare()

◆ handleDebugValue()

◆ handleKillDebugValue()

◆ init()

◆ isExportableFromCurrentBlock()

◆ LowerAsSTATEPOINT()

◆ LowerCallSiteWithDeoptBundle()

◆ LowerCallSiteWithDeoptBundleImpl()

◆ LowerCallSiteWithPtrAuthBundle()

◆ LowerCallTo()

◆ LowerDeoptimizeCall()

◆ LowerDeoptimizingReturn()

◆ lowerInvokable()

◆ lowerRangeToAssertZExt()

◆ LowerStatepoint()

◆ populateCallLoweringInfo()

◆ resolveDanglingDebugInfo()

◆ resolveOrClearDbgInfo()

◆ salvageUnresolvedDbgValue()

◆ setUnusedArgValue()

◆ setValue()

◆ ShouldEmitAsBranches()

◆ shouldKeepJumpConditionsTogether()

◆ UpdateSplitBlock()

◆ visit()[1/2]

◆ visit()[2/2]

◆ visitBitTestCase()

◆ visitBitTestHeader()

◆ visitDbgInfo()

◆ visitJumpTable()

◆ visitJumpTableHeader()

◆ visitSPDescriptorFailure()

◆ visitSPDescriptorParent()

◆ visitSwitchCase()

Member Data Documentation

◆ AC

◆ BatchAA

◆ ConstantsOut

◆ Context

◆ DAG

◆ FuncInfo

◆ GFI

◆ HasTailCall

◆ LibInfo

◆ LowestSDNodeOrder

◆ LPadToCallSiteMap

◆ PendingLoads

◆ SL

◆ SPDescriptor

◆ StatepointLowering

◆ SwiftError