LLVM  8.0.1
Classes | Public Member Functions | Public Attributes | Static Public Attributes | List of all members
llvm::SelectionDAGBuilder Class Reference

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

#include "CodeGen/SelectionDAG/SelectionDAGBuilder.h"

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Classes

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, CodeGenOpt::Level ol)
 
void init (GCFunctionInfo *gfi, AliasAnalysis *AA, const TargetLibraryInfo *li)
 
void clear ()
 Clear out the current SelectionDAG and the associated state and prepare this SelectionDAGBuilder object to be used for a new block. More...
 
void clearDanglingDebugInfo ()
 Clear the dangling debug information map. More...
 
SDValue getRoot ()
 Return the current virtual root of the Selection DAG, flushing any PendingLoad items. More...
 
SDValue getControlRoot ()
 Similar to getRoot, but instead of flushing all the PendingLoad items, flush all the PendingExports items. More...
 
SDLoc getCurSDLoc () const
 
DebugLoc getCurDebugLoc () const
 
void CopyValueToVirtualRegister (const Value *V, unsigned Reg)
 
void visit (const Instruction &I)
 
void visit (unsigned Opcode, const User &I)
 
SDValue getCopyFromRegs (const Value *V, Type *Ty)
 getCopyFromRegs - If there was virtual register allocated for the value V emit CopyFromReg of the specified type Ty. More...
 
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 weill drop that debug info as it isn't valid any longer. More...
 
void resolveDanglingDebugInfo (const Value *V, SDValue Val)
 
SDValue getValue (const Value *V)
 getValue - Return an SDValue for the given Value. More...
 
bool findValue (const Value *V) const
 
SDNode * getNodeForIRValue (const Value *V)
 Return the SDNode for the specified IR value if it exists. More...
 
SDValue getNonRegisterValue (const Value *V)
 getNonRegisterValue - Return an SDValue for the given Value, but don't look in FuncInfo.ValueMap for a virtual register. More...
 
SDValue getValueImpl (const Value *V)
 getValueImpl - Helper function for getValue and getNonRegisterValue. More...
 
void setValue (const Value *V, SDValue NewN)
 
void setUnusedArgValue (const Value *V, SDValue NewN)
 
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. More...
 
bool ShouldEmitAsBranches (const std::vector< CaseBlock > &Cases)
 If the set of cases should be emitted as a series of branches, return true. More...
 
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. More...
 
void ExportFromCurrentBlock (const Value *V)
 ExportFromCurrentBlock - If this condition isn't known to be exported from the current basic block, add it to ValueMap now so that we'll get a CopyTo/FromReg. More...
 
void LowerCallTo (ImmutableCallSite CS, SDValue Callee, bool IsTailCall, const BasicBlock *EHPadBB=nullptr)
 
SDValue lowerRangeToAssertZExt (SelectionDAG &DAG, const Instruction &I, SDValue Op)
 
void populateCallLoweringInfo (TargetLowering::CallLoweringInfo &CLI, ImmutableCallSite CS, unsigned ArgIdx, unsigned NumArgs, SDValue Callee, Type *ReturnTy, bool IsPatchPoint)
 Populate a CallLowerinInfo (into CLI) based on the properties of the call being lowered. More...
 
std::pair< SDValue, SDValue > lowerInvokable (TargetLowering::CallLoweringInfo &CLI, const BasicBlock *EHPadBB=nullptr)
 
void UpdateSplitBlock (MachineBasicBlock *First, MachineBasicBlock *Last)
 UpdateSplitBlock - When an MBB was split during scheduling, update the references that need to refer to the last resulting block. More...
 
SDValue LowerAsSTATEPOINT (StatepointLoweringInfo &SI)
 Lower SLI into a STATEPOINT instruction. More...
 
void LowerStatepoint (ImmutableStatepoint ISP, const BasicBlock *EHPadBB=nullptr)
 
void LowerCallSiteWithDeoptBundle (ImmutableCallSite CS, SDValue Callee, const BasicBlock *EHPadBB)
 
void LowerDeoptimizeCall (const CallInst *CI)
 
void LowerDeoptimizingReturn ()
 
void LowerCallSiteWithDeoptBundleImpl (ImmutableCallSite CS, SDValue Callee, const BasicBlock *EHPadBB, bool VarArgDisallowed, bool ForceVoidReturnTy)
 
MVT getFrameIndexTy ()
 Returns the type of FrameIndex and TargetFrameIndex nodes. More...
 
void visitSwitchCase (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. More...
 
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. More...
 
void visitSPDescriptorFailure (StackProtectorDescriptor &SPD)
 Codegen the failure basic block for a stack protector check. More...
 
void visitBitTestHeader (BitTestBlock &B, MachineBasicBlock *SwitchBB)
 visitBitTestHeader - This function emits necessary code to produce value suitable for "bit tests" More...
 
void visitBitTestCase (BitTestBlock &BB, MachineBasicBlock *NextMBB, BranchProbability BranchProbToNext, unsigned Reg, BitTestCase &B, MachineBasicBlock *SwitchBB)
 visitBitTestCase - this function produces one "bit test" More...
 
void visitJumpTable (JumpTable &JT)
 visitJumpTable - Emit JumpTable node in the current MBB More...
 
void visitJumpTableHeader (JumpTable &JT, JumpTableHeader &JTH, MachineBasicBlock *SwitchBB)
 visitJumpTableHeader - This function emits necessary code to produce index in the JumpTable from switch case. More...
 

Public Attributes

SmallVector< SDValue, 8 > PendingLoads
 PendingLoads - Loads are not emitted to the program immediately. More...
 
StatepointLoweringState StatepointLowering
 State used while lowering a statepoint sequence (gc_statepoint, gc_relocate, and gc_result). More...
 
SelectionDAG & DAG
 
const DataLayout * DL = nullptr
 
AliasAnalysis * AA = nullptr
 
const TargetLibraryInfo * LibInfo
 
std::vector< CaseBlock > SwitchCases
 SwitchCases - Vector of CaseBlock structures used to communicate SwitchInst code generation information. More...
 
std::vector< JumpTableBlock > JTCases
 JTCases - Vector of JumpTable structures used to communicate SwitchInst code generation information. More...
 
std::vector< BitTestBlock > BitTestCases
 BitTestCases - Vector of BitTestBlock structures used to communicate SwitchInst code generation information. More...
 
StackProtectorDescriptor SPDescriptor
 A StackProtectorDescriptor structure used to communicate stack protector information in between SelectBasicBlock and FinishBasicBlock. More...
 
DenseMap< const Constant *, unsigned > ConstantsOut
 
FunctionLoweringInfo & FuncInfo
 FuncInfo - Information about the function as a whole. More...
 
GCFunctionInfo * GFI
 GFI - Garbage collection metadata for the function. More...
 
DenseMap< MachineBasicBlock *, SmallVector< unsigned, 4 > > LPadToCallSiteMap
 LPadToCallSiteMap - Map a landing pad to the call site indexes. More...
 
bool HasTailCall = false
 HasTailCall - This is set to true if a call in the current block has been translated as a tail call. More...
 
LLVMContext * Context
 

Static Public Attributes

static const unsigned LowestSDNodeOrder = 1
 Lowest valid SDNodeOrder. More...
 

Detailed Description

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

Definition at line 93 of file SelectionDAGBuilder.h.

Constructor & Destructor Documentation

◆ SelectionDAGBuilder()

llvm::SelectionDAGBuilder::SelectionDAGBuilder ( SelectionDAG &  dag,
FunctionLoweringInfo &  funcinfo,
CodeGenOpt::Level  ol 
)
inline

Definition at line 628 of file SelectionDAGBuilder.h.

References clear(), clearDanglingDebugInfo(), getControlRoot(), getRoot(), and init().

Member Function Documentation

◆ clear()

void SelectionDAGBuilder::clear ( )

Clear out the current SelectionDAG and the associated state and prepare this SelectionDAGBuilder 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 line 1008 of file SelectionDAGBuilder.cpp.

Referenced by SelectionDAGBuilder().

◆ 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 the SelectionDAG to resolve dangling debug information attached to PHI nodes.

Definition at line 1019 of file SelectionDAGBuilder.cpp.

Referenced by SelectionDAGBuilder().

◆ CopyToExportRegsIfNeeded()

void SelectionDAGBuilder::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.

Definition at line 1702 of file SelectionDAGBuilder.cpp.

References assert(), llvm::DenseMapBase< DenseMap< KeyT, ValueT, KeyInfoT, BucketT >, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::Value::getType(), llvm::Type::isEmptyTy(), and llvm::Value::use_empty().

Referenced by setUnusedArgValue().

◆ CopyValueToVirtualRegister()

void SelectionDAGBuilder::CopyValueToVirtualRegister ( const Value *  V,
unsigned  Reg 
)

Definition at line 8778 of file SelectionDAGBuilder.cpp.

References llvm::ISD::ANY_EXTEND, assert(), llvm::ISD::CopyFromReg, llvm::Value::getContext(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getEntryNode(), llvm::SDValue::getOpcode(), llvm::SDValue::getOperand(), getReg(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::Value::getType(), llvm::TargetRegisterInfo::isPhysicalRegister(), llvm::None, and Reg.

Referenced by getCurDebugLoc().

◆ dropDanglingDebugInfo()

void SelectionDAGBuilder::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 weill drop that debug info as it isn't valid any longer.

Definition at line 1132 of file SelectionDAGBuilder.cpp.

References llvm::dbgs(), llvm::DIExpression::fragmentsOverlap(), llvm::DbgVariableIntrinsic::getExpression(), llvm::DbgVariableIntrinsic::getVariable(), LLVM_DEBUG, and llvm::remove_if().

Referenced by getCurDebugLoc().

◆ 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 line 1793 of file SelectionDAGBuilder.cpp.

References R600_InstFlag::FC, llvm::MachineBasicBlock::getBasicBlock(), llvm::SelectionDAG::getContext(), llvm::getFCmpCodeWithoutNaN(), llvm::getFCmpCondCode(), llvm::getICmpCondCode(), llvm::CmpInst::getInversePredicate(), llvm::CmpInst::getPredicate(), llvm::ConstantInt::getTrue(), llvm::ISD::SETEQ, llvm::ISD::SETNE, and llvm::SystemZISD::TM.

Referenced by setUnusedArgValue().

◆ ExportFromCurrentBlock()

void SelectionDAGBuilder::ExportFromCurrentBlock ( const Value *  V)

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

Definition at line 1717 of file SelectionDAGBuilder.cpp.

References Reg.

Referenced by lowerStatepointMetaArgs(), and setUnusedArgValue().

◆ 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 line 1840 of file SelectionDAGBuilder.cpp.

References assert(), llvm::MachineFunction::CreateMachineBasicBlock(), llvm::dyn_cast(), llvm::MachineBasicBlock::getBasicBlock(), llvm::SelectionDAG::getMachineFunction(), llvm::Instruction::getOpcode(), llvm::User::getOperand(), llvm::Instruction::getParent(), llvm::MachineBasicBlock::getParent(), llvm::Value::hasOneUse(), InBlock(), llvm::MachineFunction::insert(), llvm::PatternMatch::m_Not(), llvm::MIPatternMatch::m_OneUse(), llvm::PatternMatch::m_Value(), llvm::PatternMatch::match(), and llvm::BranchProbability::normalizeProbabilities().

Referenced by setUnusedArgValue().

◆ findValue()

bool SelectionDAGBuilder::findValue ( const Value *  V) const

Definition at line 1237 of file SelectionDAGBuilder.cpp.

Referenced by getCurDebugLoc(), and getUniformBase().

◆ getControlRoot()

SDValue SelectionDAGBuilder::getControlRoot ( )

Similar to getRoot, but instead of flushing all the PendingLoad items, flush all the PendingExports items.

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

Definition at line 1053 of file SelectionDAGBuilder.cpp.

References assert(), llvm::ISD::EntryToken, llvm::SelectionDAG::getNode(), llvm::SDValue::getOpcode(), llvm::SelectionDAG::getRoot(), llvm::MVT::Other, llvm::SelectionDAG::setRoot(), and llvm::ISD::TokenFactor.

Referenced by SelectionDAGBuilder().

◆ getCopyFromRegs()

SDValue SelectionDAGBuilder::getCopyFromRegs ( const Value *  V,
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 line 1197 of file SelectionDAGBuilder.cpp.

References llvm::DenseMapBase< DenseMap< KeyT, ValueT, KeyInfoT, BucketT >, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getEntryNode(), llvm::SelectionDAG::getTargetLoweringInfo(), and llvm::None.

Referenced by llvm::RegsForValue::append(), and getCurDebugLoc().

◆ getCurDebugLoc()

DebugLoc llvm::SelectionDAGBuilder::getCurDebugLoc ( ) const
inline

Definition at line 663 of file SelectionDAGBuilder.h.

References CopyValueToVirtualRegister(), dropDanglingDebugInfo(), findValue(), getCopyFromRegs(), llvm::Instruction::getDebugLoc(), getValue(), I, Reg, resolveDanglingDebugInfo(), and visit().

Referenced by createSwiftErrorEntriesInEntryBlock(), and mapWasmLandingPadIndex().

◆ getCurSDLoc()

SDLoc llvm::SelectionDAGBuilder::getCurSDLoc ( ) const
inline

Definition at line 659 of file SelectionDAGBuilder.h.

Referenced by getMemCmpLoad(), getUniformBase(), pushStackMapConstant(), and spillIncomingStatepointValue().

◆ getFrameIndexTy()

MVT llvm::SelectionDAGBuilder::getFrameIndexTy ( )
inline

Returns the type of FrameIndex and TargetFrameIndex nodes.

Definition at line 812 of file SelectionDAGBuilder.h.

References llvm::ISD::ADD, llvm::ISD::AND, B, llvm::ISD::FADD, llvm::ISD::FDIV, llvm::ISD::FMUL, llvm::ISD::FNEG, llvm::ISD::FREM, llvm::SelectionDAG::getDataLayout(), llvm::TargetLoweringBase::getFrameIndexTy(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::BranchProbability::getUnknown(), llvm::HexagonISD::JT, llvm::ISD::JumpTable, llvm_unreachable, llvm::ISD::MUL, N, llvm::ISD::OR, llvm::ISD::SHL, llvm::ISD::SRA, llvm::ISD::SREM, llvm::ISD::SRL, llvm::ISD::SUB, llvm::ISD::UDIV, llvm::ISD::UREM, visitBitTestCase(), visitBitTestHeader(), visitJumpTable(), visitJumpTableHeader(), visitSPDescriptorFailure(), visitSPDescriptorParent(), visitSwitchCase(), and llvm::ISD::XOR.

Referenced by lowerIncomingStatepointValue(), lowerStatepointMetaArgs(), reservePreviousStackSlotForValue(), and spillIncomingStatepointValue().

◆ getNodeForIRValue()

SDNode* llvm::SelectionDAGBuilder::getNodeForIRValue ( const Value *  V)
inline

Return the SDNode for the specified IR value if it exists.

Definition at line 691 of file SelectionDAGBuilder.h.

References llvm::DenseMapBase< DenseMap< KeyT, ValueT, KeyInfoT, BucketT >, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DenseMap< KeyT, ValueT, KeyInfoT, BucketT >, KeyT, ValueT, KeyInfoT, BucketT >::find(), getNonRegisterValue(), and getValueImpl().

◆ getNonRegisterValue()

SDValue SelectionDAGBuilder::getNonRegisterValue ( const Value *  V)

getNonRegisterValue - Return an SDValue for the given Value, but don't look in FuncInfo.ValueMap for a virtual register.

Definition at line 1244 of file SelectionDAGBuilder.cpp.

References llvm::SDValue::getNode(), N, and llvm::SDNode::setDebugLoc().

Referenced by getNodeForIRValue().

◆ getRoot()

SDValue SelectionDAGBuilder::getRoot ( )

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

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

Definition at line 1023 of file SelectionDAGBuilder.cpp.

References llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getRoot(), llvm::MVT::Other, llvm::SelectionDAG::setRoot(), and llvm::ISD::TokenFactor.

Referenced by lowerIncomingStatepointValue(), and SelectionDAGBuilder().

◆ getValue()

SDValue SelectionDAGBuilder::getValue ( const Value *  V)

getValue - Return an SDValue for the given Value.

Definition at line 1217 of file SelectionDAGBuilder.cpp.

References llvm::RegsForValue::getCopyFromRegs(), llvm::SDValue::getNode(), llvm::Value::getType(), and N.

Referenced by addStackMapLiveVars(), getCurDebugLoc(), getMemCmpLoad(), getUniformBase(), lowerStatepointMetaArgs(), removeDuplicateGCPtrs(), and reservePreviousStackSlotForValue().

◆ getValueImpl()

SDValue SelectionDAGBuilder::getValueImpl ( const Value *  V)

getValueImpl - Helper function for getValue and getNonRegisterValue.

Create an SDValue for the given value.

Definition at line 1267 of file SelectionDAGBuilder.cpp.

References llvm::MachineBasicBlock::addSuccessor(), assert(), llvm::SmallVectorImpl< T >::assign(), llvm::ISD::BR, C, llvm::ISD::CATCHPAD, llvm::ISD::CATCHRET, llvm::classifyEHPersonality(), llvm::ComputeValueVTs(), llvm::CoreCLR, getABIRegCopyCC(), llvm::SelectionDAG::getBasicBlock(), llvm::SelectionDAG::getBlockAddress(), llvm::SelectionDAG::getBuildVector(), llvm::CatchReturnInst::getCatchSwitchParentPad(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getConstantFP(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getDataLayout(), llvm::SequentialType::getElementType(), llvm::SelectionDAG::getEntryNode(), llvm::SelectionDAG::getFrameIndex(), llvm::TargetLoweringBase::getFrameIndexTy(), llvm::SelectionDAG::getGlobalAddress(), llvm::SelectionDAG::getMergeValues(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SequentialType::getNumElements(), llvm::SDNode::getNumValues(), getParent(), llvm::Type::getPointerAddressSpace(), llvm::TargetLoweringBase::getPointerTy(), llvm::CatchReturnInst::getSuccessor(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::Value::getType(), llvm::SelectionDAG::getUNDEF(), llvm::TargetLoweringBase::getValueType(), I, llvm::Type::isAggregateType(), llvm::Type::isArrayTy(), llvm::isAsynchronousEHPersonality(), llvm::EVT::isFloatingPoint(), llvm::Type::isStructTy(), llvm_unreachable, llvm::MSVC_CXX, llvm::CodeGenOpt::None, llvm::User::op_begin(), llvm::User::op_end(), llvm::MVT::Other, llvm::SmallVectorTemplateBase< T >::push_back(), llvm::MipsISD::Ret, llvm::MachineBasicBlock::setIsEHFuncletEntry(), llvm::MachineBasicBlock::setIsEHScopeEntry(), llvm::SelectionDAG::setRoot(), SI, llvm::SmallVectorBase::size(), llvm::SystemZISD::TM, llvm::RegsForValue::ValueVTs, and llvm::Wasm_CXX.

Referenced by getNodeForIRValue().

◆ init()

void SelectionDAGBuilder::init ( GCFunctionInfo *  gfi,
AliasAnalysis *  AA,
const TargetLibraryInfo *  li 
)

Definition at line 998 of file SelectionDAGBuilder.cpp.

References aa, Context, llvm::SelectionDAG::getContext(), and llvm::SelectionDAG::getDataLayout().

Referenced by llvm::SelectionDAGISel::runOnMachineFunction(), and SelectionDAGBuilder().

◆ isExportableFromCurrentBlock()

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

Definition at line 1728 of file SelectionDAGBuilder.cpp.

References llvm::MachineBasicBlock::addSuccessor(), llvm::MachineBasicBlock::addSuccessorWithoutProb(), llvm::MachineBasicBlock::getBasicBlock(), llvm::BranchProbabilityInfo::getEdgeProbability(), llvm::Function::getEntryBlock(), llvm::BasicBlock::getParent(), llvm::BranchProbability::isUnknown(), llvm::succ_size(), and VI.

Referenced by setUnusedArgValue().

◆ LowerAsSTATEPOINT()

SDValue SelectionDAGBuilder::LowerAsSTATEPOINT ( SelectionDAGBuilder::StatepointLoweringInfo &  SI)

Lower SLI into a STATEPOINT instruction.

Definition at line 604 of file StatepointLowering.cpp.

References assert(), llvm::SelectionDAGBuilder::StatepointLoweringInfo::Bases, llvm::TargetLowering::CallLoweringInfo::CallConv, llvm::SelectionDAGBuilder::StatepointLoweringInfo::CLI, llvm::SmallVectorTemplateCommon< T >::end(), llvm::ISD::GC_TRANSITION_END, llvm::ISD::GC_TRANSITION_START, llvm::SelectionDAGBuilder::StatepointLoweringInfo::GCRelocates, llvm::GCTransition, llvm::SelectionDAGBuilder::StatepointLoweringInfo::GCTransitionArgs, llvm::SDNode::getGluedNode(), llvm::SDValue::getNode(), llvm::SDNode::getNumOperands(), llvm::SDNode::getOperand(), llvm::Instruction::getParent(), llvm::Value::getType(), llvm::SDValue::getValue(), llvm::MVT::Glue, llvm::MVT::i32, llvm::MVT::i64, llvm::SelectionDAGBuilder::StatepointLoweringInfo::ID, llvm::SmallVectorImpl< T >::insert(), llvm::Type::isPointerTy(), lowerCallFromStatepointLoweringInfo(), lowerStatepointMetaArgs(), llvm::MaskAll, llvm::SelectionDAGBuilder::StatepointLoweringInfo::NumPatchBytes, llvm::SDNode::op_begin(), llvm::SDNode::op_end(), llvm::MVT::Other, llvm::SelectionDAGBuilder::StatepointLoweringInfo::Ptrs, llvm::SmallVectorTemplateBase< T >::push_back(), pushStackMapConstant(), removeDuplicateGCPtrs(), llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointFlags, and llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointInstr.

Referenced by llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointLoweringInfo().

◆ LowerCallSiteWithDeoptBundle()

void SelectionDAGBuilder::LowerCallSiteWithDeoptBundle ( ImmutableCallSite  CS,
SDValue  Callee,
const BasicBlock *  EHPadBB 
)

Definition at line 927 of file StatepointLowering.cpp.

References assert(), llvm::ISD::CopyFromReg, llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getCalledValue(), llvm::GCRelocateInst::getDerivedPtr(), llvm::PointerType::getElementType(), llvm::MachinePointerInfo::getFixedStack(), llvm::SDValue::getNode(), llvm::Instruction::getParent(), llvm::Type::getScalarType(), llvm::GCProjectionInst::getStatepoint(), llvm::Value::getType(), llvm::SDValue::getValue(), and I.

Referenced by llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointLoweringInfo().

◆ LowerCallSiteWithDeoptBundleImpl()

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

Definition at line 893 of file StatepointLowering.cpp.

References llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::arg_begin(), Callee, llvm::SelectionDAGBuilder::StatepointLoweringInfo::CLI, llvm::StatepointDirectives::DeoptBundleStatepointID, llvm::SelectionDAGBuilder::StatepointLoweringInfo::DeoptState, llvm::SelectionDAGBuilder::StatepointLoweringInfo::EHPadBB, llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getAttributes(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getFunctionType(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getInstruction(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getNumArgOperands(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getOperandBundle(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getType(), llvm::Type::getVoidTy(), llvm::SelectionDAGBuilder::StatepointLoweringInfo::ID, llvm::FunctionType::isVarArg(), llvm::TargetLowering::CallLoweringInfo::IsVarArg, llvm::None, llvm::SelectionDAGBuilder::StatepointLoweringInfo::NumPatchBytes, llvm::LLVMContext::OB_deopt, llvm::User::op_begin(), llvm::parseStatepointDirectivesFromAttrs(), SI, and llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointFlags.

Referenced by llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointLoweringInfo().

◆ LowerCallTo()

void SelectionDAGBuilder::LowerCallTo ( ImmutableCallSite  CS,
SDValue  Callee,
bool  IsTailCall,
const BasicBlock *  EHPadBB = nullptr 
)

Definition at line 6561 of file SelectionDAGBuilder.cpp.

References llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::arg_begin(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::arg_end(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::arg_size(), llvm::AMDGPU::HSAMD::Kernel::Key::Args, llvm::TargetLowering::CallLoweringInfo::DAG, llvm::TargetLowering::CallLoweringInfo::DL, first, llvm::SelectionDAG::getCopyToReg(), llvm::SelectionDAG::getDataLayout(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getFunctionType(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getInstruction(), llvm::Instruction::getParent(), llvm::BasicBlock::getParent(), llvm::TargetLoweringBase::getPointerTy(), llvm::SelectionDAG::getRegister(), llvm::SelectionDAG::getTarget(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::Value::getType(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getType(), llvm::TargetLowering::CallLoweringInfo::InVals, llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::isConvergent(), llvm::Type::isEmptyTy(), llvm::isInTailCallPosition(), llvm::TargetLoweringBase::ArgListEntry::IsSRet, llvm::TargetLoweringBase::ArgListEntry::IsSwiftError, llvm::TargetLoweringBase::ArgListEntry::Node, llvm::TargetLoweringBase::ArgListEntry::setAttributes(), llvm::TargetLowering::CallLoweringInfo::setCallee(), llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::TargetLowering::CallLoweringInfo::setConvergent(), llvm::TargetLowering::CallLoweringInfo::setDebugLoc(), llvm::SelectionDAG::setRoot(), llvm::TargetLowering::CallLoweringInfo::setTailCall(), llvm::TargetLowering::supportSwiftError(), llvm::Attribute::SwiftError, and llvm::TargetLoweringBase::ArgListEntry::Ty.

Referenced by setUnusedArgValue().

◆ LowerDeoptimizeCall()

void SelectionDAGBuilder::LowerDeoptimizeCall ( const CallInst *  CI)

Definition at line 1010 of file StatepointLowering.cpp.

References Callee.

Referenced by llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointLoweringInfo().

◆ LowerDeoptimizingReturn()

void SelectionDAGBuilder::LowerDeoptimizingReturn ( )

Definition at line 1023 of file StatepointLowering.cpp.

References llvm::MVT::Other, and llvm::ISD::TRAP.

Referenced by llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointLoweringInfo().

◆ lowerInvokable()

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

Definition at line 6489 of file SelectionDAGBuilder.cpp.

References llvm::MachineFunction::addInvoke(), llvm::WinEHFuncInfo::addIPToStateRange(), assert(), llvm::classifyEHPersonality(), llvm::MCContext::createTempSymbol(), llvm::TargetLowering::CallLoweringInfo::CS, llvm::MachineModuleInfo::getContext(), llvm::MachineModuleInfo::getCurrentCallSite(), llvm::SelectionDAG::getEHLabel(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getInstruction(), llvm::SelectionDAG::getMachineFunction(), llvm::MachineFunction::getMMI(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::MachineFunction::getWinEHFuncInfo(), llvm::MachineFunction::hasEHFunclets(), llvm::isFuncletEHPersonality(), llvm::isScopedEHPersonality(), llvm::TargetLowering::CallLoweringInfo::IsTailCall, llvm::TargetLowering::LowerCallTo(), llvm::MachineFunction::setCallSiteBeginLabel(), llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::MachineModuleInfo::setCurrentCallSite(), and llvm::SelectionDAG::setRoot().

Referenced by lowerCallFromStatepointLoweringInfo(), and setUnusedArgValue().

◆ lowerRangeToAssertZExt()

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

Definition at line 8018 of file SelectionDAGBuilder.cpp.

References llvm::ISD::AssertZext, llvm::tgtok::Bits, llvm::APInt::getActiveBits(), llvm::getConstantRangeFromMetadata(), llvm::SelectionDAG::getContext(), llvm::EVT::getIntegerVT(), llvm::SelectionDAG::getMergeValues(), llvm::Instruction::getMetadata(), llvm::SDValue::getNode(), llvm::SelectionDAG::getNode(), llvm::SDNode::getNumValues(), llvm::ConstantRange::getUnsignedMax(), llvm::ConstantRange::getUnsignedMin(), llvm::SDValue::getValue(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getValueType(), llvm::MipsISD::Hi, I, llvm::ConstantRange::isEmptySet(), llvm::ConstantRange::isFullSet(), llvm::APInt::isMinValue(), llvm::ConstantRange::isWrappedSet(), llvm::MipsISD::Lo, llvm::max(), llvm::LLVMContext::MD_range, llvm::IntegerType::MIN_INT_BITS, and llvm::SmallVectorTemplateBase< T >::push_back().

Referenced by setUnusedArgValue().

◆ LowerStatepoint()

void SelectionDAGBuilder::LowerStatepoint ( ImmutableStatepoint  ISP,
const BasicBlock *  EHPadBB = nullptr 
)

Definition at line 800 of file StatepointLowering.cpp.

References llvm::CallingConv::AnyReg, assert(), llvm::StatepointBase< const Function, const Instruction, const Value, ImmutableCallSite >::CallArgsBeginPos, llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::deopt_begin(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::deopt_end(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::gc_args_begin(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::gc_args_end(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getActualReturnType(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getCalledValue(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getCallingConv(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getCallSite(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getFlags(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getGCResult(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getID(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getInstruction(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getNumCallArgs(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getNumPatchBytes(), llvm::Instruction::getParent(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getParent(), llvm::Type::getPointerAddressSpace(), llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::getRelocates(), llvm::Value::getType(), llvm::Type::isVoidTy(), Reg, SI, and llvm::StatepointBase< FunTy, InstructionTy, ValueTy, CallSiteTy >::verify().

Referenced by llvm::SelectionDAGBuilder::StatepointLoweringInfo::StatepointLoweringInfo().

◆ populateCallLoweringInfo()

void SelectionDAGBuilder::populateCallLoweringInfo ( TargetLowering::CallLoweringInfo &  CLI,
ImmutableCallSite  CS,
unsigned  ArgIdx,
unsigned  NumArgs,
SDValue  Callee,
Type *  ReturnTy,
bool  IsPatchPoint 
)

Populate a CallLowerinInfo (into CLI) 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 line 8062 of file SelectionDAGBuilder.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Key::Args, assert(), llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getCallingConv(), llvm::Value::getType(), llvm::Type::isEmptyTy(), llvm::TargetLoweringBase::ArgListEntry::Node, llvm::TargetLowering::CallLoweringInfo::setCallee(), llvm::TargetLowering::CallLoweringInfo::setChain(), and llvm::TargetLowering::CallLoweringInfo::setDebugLoc().

Referenced by setUnusedArgValue().

◆ resolveDanglingDebugInfo()

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

Definition at line 1153 of file SelectionDAGBuilder.cpp.

References llvm::SelectionDAG::AddDbgValue(), assert(), llvm::dbgs(), llvm::SDValue::dump(), llvm::DbgVariableIntrinsic::getExpression(), llvm::SDNode::getIROrder(), llvm::SDValue::getNode(), llvm::DbgVariableIntrinsic::getVariable(), llvm::DILocalVariable::isValidLocationForIntrinsic(), LLVM_DEBUG, and llvm::max().

Referenced by getCurDebugLoc().

◆ setUnusedArgValue()

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

Definition at line 706 of file SelectionDAGBuilder.h.

References assert(), Callee, CopyToExportRegsIfNeeded(), EmitBranchForMergedCondition(), ExportFromCurrentBlock(), FindMergedConditions(), llvm::SDValue::getNode(), isExportableFromCurrentBlock(), LowerCallTo(), lowerInvokable(), lowerRangeToAssertZExt(), N, populateCallLoweringInfo(), ShouldEmitAsBranches(), and UpdateSplitBlock().

◆ setValue()

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

Definition at line 700 of file SelectionDAGBuilder.h.

References assert(), llvm::SDValue::getNode(), and N.

◆ ShouldEmitAsBranches()

bool SelectionDAGBuilder::ShouldEmitAsBranches ( const std::vector< 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 line 1966 of file SelectionDAGBuilder.cpp.

References llvm::MachineBasicBlock::addSuccessor(), assert(), llvm::ISD::BR, llvm::SelectionDAG::getBasicBlock(), llvm::BranchInst::getCondition(), llvm::SelectionDAG::getContext(), llvm::Instruction::getMetadata(), llvm::SelectionDAG::getNode(), llvm::BranchInst::getSuccessor(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::ConstantInt::getTrue(), llvm::TargetLoweringBase::isJumpExpensive(), llvm::BranchInst::isUnconditional(), llvm::LLVMContext::MD_unpredictable, llvm::CodeGenOpt::None, llvm::MVT::Other, llvm::ISD::SETEQ, llvm::ISD::SETNE, llvm::SelectionDAG::setRoot(), and llvm::SystemZISD::TM.

Referenced by setUnusedArgValue().

◆ UpdateSplitBlock()

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

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

Definition at line 2620 of file SelectionDAGBuilder.cpp.

References llvm::ISD::BRIND, first, llvm::ISD::FNEG, llvm::BasicBlock::front(), llvm::ISD::FSUB, llvm::IndirectBrInst::getAddress(), llvm::SelectionDAG::getNode(), llvm::IndirectBrInst::getNumSuccessors(), llvm::User::getOperand(), llvm::Instruction::getParent(), llvm::SelectionDAG::getRoot(), llvm::IndirectBrInst::getSuccessor(), llvm::SelectionDAG::getTarget(), llvm::Value::getType(), llvm::SDValue::getValueType(), llvm::ConstantFP::getZeroValueForNegation(), llvm::SmallSet< T, N, C >::insert(), llvm::MachineBasicBlock::normalizeSuccProbs(), llvm::TargetOptions::NoTrapAfterNoreturn, llvm::TargetMachine::Options, llvm::MVT::Other, llvm::SelectionDAG::setRoot(), llvm::ISD::TRAP, and llvm::TargetOptions::TrapUnreachable.

Referenced by setUnusedArgValue().

◆ visit() [1/2]

void SelectionDAGBuilder::visit ( const Instruction &  I)

Definition at line 1079 of file SelectionDAGBuilder.cpp.

References llvm::Instruction::getOpcode(), llvm::Instruction::getParent(), I, and llvm::Instruction::isTerminator().

Referenced by getCurDebugLoc().

◆ visit() [2/2]

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

Definition at line 1120 of file SelectionDAGBuilder.cpp.

References llvm_unreachable.

◆ visitBitTestCase()

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

visitBitTestCase - this function produces one "bit test"

Definition at line 2405 of file SelectionDAGBuilder.cpp.

References llvm::ISD::AND, assert(), llvm::ISD::BR, llvm::ISD::BRCOND, Callee, llvm::ComputeValueVTs(), llvm::CallBase::countOperandBundlesOfType(), llvm::countPopulation(), llvm::countTrailingOnes(), llvm::countTrailingZeros(), llvm::Intrinsic::donothing, llvm::dyn_cast(), llvm::Intrinsic::experimental_gc_statepoint, llvm::Intrinsic::experimental_patchpoint_i64, llvm::Intrinsic::experimental_patchpoint_void, findUnwindDestinations(), llvm::MachineBasicBlock::getBasicBlock(), llvm::SelectionDAG::getBasicBlock(), llvm::CallBase::getCalledValue(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getCopyFromReg(), llvm::SelectionDAG::getDataLayout(), llvm::BranchProbabilityInfo::getEdgeProbability(), llvm::SelectionDAG::getEntryNode(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getSetCC(), llvm::TargetLoweringBase::getSetCCResultType(), llvm::InvokeInst::getSuccessor(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::Value::getType(), llvm::ConstantInt::getValue(), llvm::SelectionDAG::getVTList(), llvm::BranchProbability::getZero(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::CallBase::hasOperandBundlesOtherThan(), llvm::isStatepoint(), llvm::Type::isTokenTy(), llvm_unreachable, llvm::Intrinsic::memmove, llvm::ISD::MERGE_VALUES, N, llvm::MachineBasicBlock::normalizeSuccProbs(), llvm::LLVMContext::OB_deopt, llvm::MVT::Other, llvm::MCID::Return, llvm::ISD::SETEQ, llvm::ISD::SETNE, llvm::SelectionDAG::setRoot(), llvm::ISD::SHL, llvm::SmallVectorBase::size(), llvm::sort(), and llvm::RegsForValue::ValueVTs.

Referenced by getFrameIndexTy().

◆ visitBitTestHeader()

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

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

Definition at line 2347 of file SelectionDAGBuilder.cpp.

References llvm::ISD::BR, llvm::ISD::BRCOND, llvm::SelectionDAG::getBasicBlock(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getCopyToReg(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getNode(), llvm::TargetLoweringBase::getPointerTy(), llvm::SelectionDAG::getSetCC(), llvm::TargetLoweringBase::getSetCCResultType(), llvm::EVT::getSimpleVT(), llvm::EVT::getSizeInBits(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::TargetLoweringBase::isTypeLegal(), llvm::isUIntN(), llvm::MachineBasicBlock::normalizeSuccProbs(), llvm::MVT::Other, llvm::SelectionDAG::setRoot(), llvm::ISD::SETUGT, and llvm::ISD::SUB.

Referenced by getFrameIndexTy().

◆ visitJumpTable()

void SelectionDAGBuilder::visitJumpTable ( JumpTable &  JT)

visitJumpTable - Emit JumpTable node in the current MBB

Definition at line 2150 of file SelectionDAGBuilder.cpp.

References assert(), llvm::ISD::BR_JT, llvm::SelectionDAG::getCopyFromReg(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getJumpTable(), llvm::SelectionDAG::getNode(), llvm::TargetLoweringBase::getPointerTy(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::SDValue::getValue(), llvm::MVT::Other, and llvm::SelectionDAG::setRoot().

Referenced by getFrameIndexTy().

◆ visitJumpTableHeader()

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

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

Definition at line 2165 of file SelectionDAGBuilder.cpp.

References llvm::ISD::BR, llvm::ISD::BRCOND, llvm::ARCISD::CMP, llvm::SelectionDAG::getBasicBlock(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getCopyToReg(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getNode(), llvm::TargetLoweringBase::getPointerTy(), llvm::SelectionDAG::getSetCC(), llvm::TargetLoweringBase::getSetCCResultType(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::MVT::Other, llvm::SelectionDAG::setRoot(), llvm::ISD::SETUGT, and llvm::ISD::SUB.

Referenced by getFrameIndexTy().

◆ 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 class StackProtectorDescriptor.

Definition at line 2337 of file SelectionDAGBuilder.cpp.

References llvm::SelectionDAG::getTargetLoweringInfo(), llvm::MVT::isVoid, llvm::TargetLowering::makeLibCall(), llvm::None, and llvm::SelectionDAG::setRoot().

Referenced by getFrameIndexTy().

◆ 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 class StackProtectorDescriptor.

Definition at line 2239 of file SelectionDAGBuilder.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align, llvm::AMDGPU::HSAMD::Kernel::Key::Args, assert(), llvm::ISD::BR, llvm::ISD::BRCOND, llvm::TargetLowering::emitStackGuardXorFP(), llvm::SelectionDAG::getBasicBlock(), llvm::SelectionDAG::getConstant(), llvm::Module::getContext(), llvm::SelectionDAG::getContext(), llvm::SelectionDAG::getDataLayout(), llvm::SelectionDAG::getEntryNode(), llvm::MachinePointerInfo::getFixedStack(), llvm::SelectionDAG::getFrameIndex(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::Type::getInt8PtrTy(), llvm::SelectionDAG::getLoad(), getLoadStackGuard(), llvm::SelectionDAG::getMachineFunction(), llvm::SelectionDAG::getNode(), llvm::SDValue::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::GlobalValue::getParent(), llvm::TargetLoweringBase::getPointerTy(), llvm::TargetLoweringBase::getSDagStackGuard(), llvm::SelectionDAG::getSetCC(), llvm::TargetLoweringBase::getSetCCResultType(), llvm::TargetLoweringBase::getSSPStackGuardCheck(), llvm::MachineFrameInfo::getStackProtectorIndex(), llvm::SelectionDAG::getTargetLoweringInfo(), llvm::SDValue::getValueType(), llvm::TargetLoweringBase::ArgListEntry::IsInReg, llvm::TargetLowering::LowerCallTo(), llvm::MachineMemOperand::MOVolatile, llvm::TargetLoweringBase::ArgListEntry::Node, llvm::MVT::Other, llvm::TargetLowering::CallLoweringInfo::setChain(), llvm::TargetLowering::CallLoweringInfo::setDebugLoc(), llvm::ISD::SETNE, llvm::SelectionDAG::setRoot(), llvm::ISD::SUB, llvm::TargetLoweringBase::ArgListEntry::Ty, llvm::TargetLowering::useLoadStackGuardNode(), and llvm::TargetLoweringBase::useStackGuardXorFP().

Referenced by getFrameIndexTy().

◆ visitSwitchCase()

void SelectionDAGBuilder::visitSwitchCase ( 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 line 2081 of file SelectionDAGBuilder.cpp.

References assert(), llvm::ISD::BR, llvm::ISD::BRCOND, llvm::SelectionDAG::getBasicBlock(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getContext(), llvm::ConstantInt::getFalse(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getSetCC(), llvm::ConstantInt::getTrue(), llvm::SDValue::getValueType(), High, llvm::MVT::i1, llvm::MachineBasicBlock::normalizeSuccProbs(), llvm::MVT::Other, llvm::ISD::SETEQ, llvm::ISD::SETLE, llvm::SelectionDAG::setRoot(), llvm::ISD::SETULE, llvm::ISD::SUB, std::swap(), and llvm::ISD::XOR.

Referenced by getFrameIndexTy().

Member Data Documentation

◆ AA

AliasAnalysis* llvm::SelectionDAGBuilder::AA = nullptr

Definition at line 588 of file SelectionDAGBuilder.h.

Referenced by getMemCmpLoad().

◆ BitTestCases

std::vector<BitTestBlock> llvm::SelectionDAGBuilder::BitTestCases

BitTestCases - Vector of BitTestBlock structures used to communicate SwitchInst code generation information.

Definition at line 601 of file SelectionDAGBuilder.h.

◆ ConstantsOut

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

Definition at line 609 of file SelectionDAGBuilder.h.

◆ Context

LLVMContext* llvm::SelectionDAGBuilder::Context

Definition at line 626 of file SelectionDAGBuilder.h.

◆ DAG

SelectionDAG& llvm::SelectionDAGBuilder::DAG

Definition at line 586 of file SelectionDAGBuilder.h.

Referenced by addStackMapLiveVars(), llvm::StatepointLoweringState::allocateStackSlot(), llvm::RegsForValue::append(), getMemCmpLoad(), getUniformBase(), lowerIncomingStatepointValue(), lowerStatepointMetaArgs(), pushStackMapConstant(), reservePreviousStackSlotForValue(), and spillIncomingStatepointValue().

◆ DL

const DataLayout* llvm::SelectionDAGBuilder::DL = nullptr

Definition at line 587 of file SelectionDAGBuilder.h.

Referenced by getMemCmpLoad().

◆ FuncInfo

FunctionLoweringInfo& llvm::SelectionDAGBuilder::FuncInfo

FuncInfo - Information about the function as a whole.

Definition at line 613 of file SelectionDAGBuilder.h.

Referenced by llvm::StatepointLoweringState::allocateStackSlot(), llvm::RegsForValue::append(), findPreviousSpillSlot(), lowerStatepointMetaArgs(), reservePreviousStackSlotForValue(), and llvm::StatepointLoweringState::startNewStatepoint().

◆ GFI

GCFunctionInfo* llvm::SelectionDAGBuilder::GFI

GFI - Garbage collection metadata for the function.

Definition at line 616 of file SelectionDAGBuilder.h.

Referenced by lowerStatepointMetaArgs().

◆ HasTailCall

bool llvm::SelectionDAGBuilder::HasTailCall = false

HasTailCall - 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 line 624 of file SelectionDAGBuilder.h.

◆ JTCases

std::vector<JumpTableBlock> llvm::SelectionDAGBuilder::JTCases

JTCases - Vector of JumpTable structures used to communicate SwitchInst code generation information.

Definition at line 597 of file SelectionDAGBuilder.h.

◆ LibInfo

const TargetLibraryInfo* llvm::SelectionDAGBuilder::LibInfo

Definition at line 589 of file SelectionDAGBuilder.h.

◆ LowestSDNodeOrder

const unsigned llvm::SelectionDAGBuilder::LowestSDNodeOrder = 1
static

Lowest valid SDNodeOrder.

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

Definition at line 584 of file SelectionDAGBuilder.h.

◆ LPadToCallSiteMap

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

LPadToCallSiteMap - Map a landing pad to the call site indexes.

Definition at line 619 of file SelectionDAGBuilder.h.

Referenced by mapWasmLandingPadIndex().

◆ PendingLoads

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

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 line 131 of file SelectionDAGBuilder.h.

Referenced by getMemCmpLoad().

◆ SPDescriptor

StackProtectorDescriptor llvm::SelectionDAGBuilder::SPDescriptor

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

Definition at line 605 of file SelectionDAGBuilder.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 line 135 of file SelectionDAGBuilder.h.

Referenced by lowerStatepointMetaArgs(), reservePreviousStackSlotForValue(), and spillIncomingStatepointValue().

◆ SwitchCases

std::vector<CaseBlock> llvm::SelectionDAGBuilder::SwitchCases

SwitchCases - Vector of CaseBlock structures used to communicate SwitchInst code generation information.

Definition at line 593 of file SelectionDAGBuilder.h.

The documentation for this class was generated from the following files:
Generated on Sun Dec 20 2020 14:13:51 for LLVM by   doxygen 1.8.13